Martin Luther University Halle-Wittenberg

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Prof. Dr. Christopher Conrad

phone: 0345/55-26064
fax: 0345/55-27175

room H4 1.24
Von-Seckendorff-Platz 4
06120 Halle (Saale)

postal address:
Prof. Dr. Christopher Conrad
06099 Martin-Luther-Universität Halle-Wittenberg
Institut für Geowissenschaften

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Publications


Publications - Scientific journals

2019

  • Ahmadian, N., Ullmann, T., Verrelst, J., Borg, E., Zölitz, R.und Conrad, C. „Biomass Assessment of Agricultural Crops Using Multi-temporal Dual-Polarimetric TerraSAR-X Data: A Case Study on Northeast Germany.“ PFG – Journal of Photogrammetry, Remote Sensing and Geoinformation Science, Nr. 88 (2019). doi:10.1007/s41064-019-00076-x   
  • Kumar, N., Khamzina, A., Tischbein, B., Knöfel, P., Conrad, C.und Lamers, J.P. A. „Spatio-temporal supply–demand of surface water for agroforestry planning in saline landscape of the lower Amudarya Basin.“ Journal of Arid Environments 162 (2019): 53–61. doi:10.1016/j.jaridenv.2018.11.007   
  • Ludwig, M., Ludwig, H., Conrad, C., Dahms, T.und Meyhöfer, R. „Cabbage whiteflies colonise Brassica vegetables primarily from distant, upwind source habitats.“ Entomologia Experimentalis et Applicata 34 (2019): 29. doi:10.1111/eea.12827   
  • Orynbaikyzy, A., Gessner, U.und Conrad, C. „Crop type classification using a combination of optical and radar remote sensing data: a review.“ International Journal of Remote Sensing 40, Nr. 17 (2019): 6553–6595. doi:10.1080/01431161.2019.1569791   

2018

  • Heinrich, I., Balanzategui, D., Bens, O., Blasch, G., Blume, T., Böttcher, F., Borg, E., Brademann, B., Brauer, A., Conrad, C., Dietze, E., Dräger, N., Fiener, P., Gerke, H.H., Güntner, A., Heine, I., Helle, G., Herbrich, M., Harfenmeister, K., Heußner, K.-U., Hohmann, C., Itzerott, S., Jurasinski, G., Kaiser, K., Kappler, C., Koebsch, F., Liebner, S., Lischeid, G., Merz, B., Missling, K.D., Morgner, M., Pinkerneil, S., Plessen, B., Raab, T., Ruhtz, T., Sachs, T., Sommer, M., Spengler, D., Stender, V., Stüve, P.und Wilken, F. „Interdisciplinary Geo-ecological Research across Time Scales in the Northeast German Lowland Observatory (TERENO-NE).“ Vadose Zone Journal 17, Nr. 1 (2018): 0. doi:10.2136/vzj2018.06.0116   
  • Qamar, M., Azmat, M., Abbas, A., Usman, M., Shahid, M.und Khan, Z. „Water Pricing and Implementation Strategies for the Sustainability of an Irrigation System: A Case Study within the Command Area of the Rakh Branch Canal.“ Water 10, Nr. 4 (2018): 509. doi:10.3390/w10040509   
  • Schönbrodt-Stitt, S., Conrad, C., Dimov, D., Ergashev, I., Löw, F., Morper-Busch, L., Muminov, S., Ruziev, I., Schorcht, G., Solodky, G., Sorokin, D., Stulina, G., Toshpulatov, R., Zaitov, S., Kitapbayev, A.und Unger-Shayesteh, K. „The WUEMoCA Tool for Monitoring Irrigated Cropland Use and Water Use Efficiency at the Landscape Level of the Aral Sea Basin.“ Novel Methods and Results of Landscape Research in Europe, Central Asia and Siberia, Vol. 4 Optimising Agricultural Landscapes 4, Nr. 72 (2018): 351–356
  • Sultanov, M., Ibrakhimov, M., Akramkhanov, A., Bauer, C.und Conrad, C. „Modelling End-of-Season Soil Salinity in Irrigated Agriculture Through Multi-temporal Optical Remote Sensing, Environmental Parameters, and In Situ Information.“ PFG – Journal of Photogrammetry, Remote Sensing and Geoinformation Science 86, 5-6 (2018): 221–233. doi:10.1007/s41064-019-00062-3   
  • Usman, M., Liedl, R., Arshad, M.und Conrad, C. „3-D numerical modelling of groundwater flow for scenario-based analysis and management.“ Water SA 44, 2 April (2018). doi:10.4314/wsa.v44i2.01   
  • Usman, M., Reimann, T., Liedl, R., Abbas, A., Conrad, C.und Saleem, S. „Inverse Parametrization of a Regional Groundwater Flow Model with the Aid of Modelling and GIS: Test and Application of Different Approaches.“ ISPRS International Journal of Geo-Information 7, Nr. 1 (2018): 22. doi:10.3390/ijgi7010022   
  • Zoungrana, B.J.-B., Conrad, C., Thiel, M., Amekudzi, L.K.und Da, E.D. „MODIS NDVI trends and fractional land cover change for improved assessments of vegetation degradation in Burkina Faso, West Africa.“ Journal of Arid Environments 153 (2018): 66–75. doi:10.1016/j.jaridenv.2018.01.005   

2017

  • Batsaikhan, A., Asam, S., Klein, D.und Conrad, C. „Analysis of grassland phenology at different site conditions using webcams-A case study in the European Alps-.“ Journal of the Japan society of photogrammetry and remote sensing 56, Nr. 4 (2017): 137–142. doi:10.4287/jsprs.56.137   
  • Conrad, C., Löw, F.und Lamers, J.P. A. „Mapping and assessing crop diversity in the irrigated Fergana Valley, Uzbekistan.“ Applied Geography 86 (2017): 102–117. doi:10.1016/j.apgeog.2017.06.016   
  • Forkuor, G., Conrad, C., Thiel, M., Zoungrana, B.J.-B.und Tondoh, J. „Multiscale Remote Sensing to Map the Spatial Distribution and Extent of Cropland in the Sudanian Savanna of West Africa.“ Remote Sensing 9, Nr. 8 (2017): 839. doi:10.3390/rs9080839   
  • Löw, F., Biradar, C., Fliemann, E., Lamers, J.P. A.und Conrad, C. „Assessing gaps in irrigated agricultural productivity through satellite earth observations—A case study of the Fergana Valley, Central Asia.“ International Journal of Applied Earth Observation and Geoinformation 59 (2017): 118–134. doi:10.1016/j.jag.2017.02.014   
  • Xu, X., Conrad, C.und Doktor, D. „Optimising Phenological Metrics Extraction for Different Crop Types in Germany Using the Moderate Resolution Imaging Spectrometer (MODIS).“ Remote Sensing 9, Nr. 3 (2017): 254. doi:10.3390/rs9030254   

2016

  • Conrad, C., Kaiser, B.O.und Lamers, J.P. A. „Quantifying water volumes of small lakes in the inner Aral Sea Basin, Central Asia, and their potential for reaching water and food security.“ Environmental Earth Sciences 75, Nr. 11 (2016): 2467. doi:10.1007/s12665-016-5753-8   
  • Conrad, C., Lamers, J.P. A., Ibragimov, N., Löw, F.und Martius, C. „Analysing irrigated crop rotation patterns in arid Uzbekistan by the means of remote sensing: A case study on post-Soviet agricultural land use.“ Journal of Arid Environments 124 (2016): 150–159. doi:10.1016/j.jaridenv.2015.08.008   
  • Conrad, C., Schönbrodt-Stitt, S., Löw, F., Sorokin, D.und Paeth, H. „Cropping Intensity in the Aral Sea Basin and Its Dependency from the Runoff Formation 2000–2012.“ Remote Sensing 8, Nr. 8 (2016): 630. doi:10.3390/rs8080630.   
  • Dahms, T., Seissiger, S., Borg, E., Vajen, H., Fichtelmann, B.und Conrad, C. „Important Variables of a RapidEye Time Series for Modelling Biophysical Parameters of Winter Wheat.“ Photogrammetrie - Fernerkundung - Geoinformation 2016, Nr. 5 (2016): 285–299. doi:10.1127/pfg/2016/0303   
  • Ibrahim Mahmoud, M., Duker, A., Conrad, C., Thiel, M.und Shaba Ahmad, H. „Analysis of Settlement Expansion and Urban Growth Modelling Using Geoinformation for Assessing Potential Impacts of Urbanization on Climate in Abuja City, Nigeria.“ Remote Sensing 8, Nr. 3 (2016): 220. doi:10.3390/rs8030220   

2015

  • Ayanu, Y.Z., Conrad, C., Jentsch, A.und Koellner, T. „Unveiling Undercover Cropland Inside Forests Using Landscape Variables: A Supplement to Remote Sensing Image Classification.“ PLOS ONE 10, Nr. 6 (2015): e0130079. doi:10.1371/journal.pone.0130079   
  • Conrad, C., Rudloff, M., Abdullaev, I., Thiel, M., Löw, F.und Lamers, J.P. A. „Measuring rural settlement expansion in Uzbekistan using remote sensing to support spatial planning.“ Applied Geography 62 (2015): 29–43. doi:10.1016/j.apgeog.2015.03.017.   
  • Forkuor, G., Conrad, C., Thiel, M., Landmann, T.und Barry, B. „Evaluating the sequential masking classification approach for improving crop discrimination in the Sudanian Savanna of West Africa.“ Computers and Electronics in Agriculture 118 (2015): 380–389. doi:10.1016/j.compag.2015.09.020   
  • Lex, S., Asam, S., Löw, F.und Conrad, C. „Comparison of two Statistical Methods for the Derivation of the Fraction of Absorbed Photosynthetic Active Radiation for Cotton.“ Photogrammetrie - Fernerkundung - Geoinformation 2015, Nr. 1 (2015): 55–67. doi:10.1127/pfg/2015/0250   
  • Löw, F., Conrad, C.und Michel, U. „Decision fusion and non-parametric classifiers for land use mapping using multi-temporal RapidEye data.“ ISPRS Journal of Photogrammetry and Remote Sensing 108 (2015): 191–204. doi:10.1016/j.isprsjprs.2015.07.001   
  • Löw, F., Duveiller, G., Conrad, C.und Michel, U. „Impact of Categorical and Spatial Scale on Supervised Crop Classification using Remote Sensing.“ Photogrammetrie - Fernerkundung - Geoinformation 2015, Nr. 1 (2015): 7–20. doi:10.1127/pfg/2015/0252   
  • Löw, F., Fliemann, E., Abdullaev, I., Conrad, C.und Lamers, J.P. A. „Mapping abandoned agricultural land in Kyzyl-Orda, Kazakhstan using satellite remote sensing.“ Applied Geography 62 (2015): 377–390. doi:10.1016/j.apgeog.2015.05.009   
  • Löw, F., Knöfel, P.und Conrad, C. „Analysis of uncertainty in multi-temporal object-based classification.“ ISPRS Journal of Photogrammetry and Remote Sensing 105 (2015): 91–106. doi:10.1016/j.isprsjprs.2015.03.004   
  • Machwitz, M., Gessner, U., Conrad, C., Falk, U., Richters, J.und Dech, S.W. „Modelling the Gross Primary Productivity of West Africa with the Regional Biomass Model RBM+, using optimized 250m MODIS FPAR and fractional vegetation cover information.“ International Journal of Applied Earth Observation and Geoinformation 43 (2015): 177–194. doi:10.1016/j.jag.2015.04.007   
  • Schuster, C., Schmidt, T., Conrad, C., Kleinschmit, B.und Förster, M. „Grassland habitat mapping by intra-annual time series analysis – Comparison of RapidEye and TerraSAR-X satellite data.“ International Journal of Applied Earth Observation and Geoinformation 34 (2015): 25–34. doi:10.1016/j.jag.2014.06.004   
  • Zoungrana, B.J.-B., Conrad, C., Amekudzi, L.K., Thiel, M.und Da, E.D. „Land Use/Cover Response to Rainfall Variability: A Comparing Analysis between NDVI and EVI in the Southwest of Burkina Faso.“ Climate 3, Nr. 1 (2015): 63–77. doi:10.3390/cli3010063   
  • Zoungrana, B.J.-B., Conrad, C., Amekudzi, L.K., Thiel, M., Da, E.D., Forkuor, G.und Löw, F. „Multi-Temporal Landsat Images and Ancillary Data for Land Use/Cover Change (LULCC) Detection in the Southwest of Burkina Faso, West Africa.“ Remote Sensing 7, Nr. 9 (2015): 12076–12102. doi:10.3390/rs70912076   

2014

  • Conrad, C., Dech, S.W., Dubovyk, O., Fritsch, S., Klein, D., Löw, F., Schorcht, G.und Zeidler, J. „Derivation of temporal windows for accurate crop discrimination in heterogeneous croplands of Uzbekistan using multitemporal RapidEye images.“ Computers and Electronics in Agriculture 103 (2014): 63–74. doi:10.1016/j.compag.2014.02.003   
  • Dietz, A.J., Conrad, C., Künzer, C., Gesell, G.und Dech, S.W. „Identifying Changing Snow Cover Characteristics in Central Asia between 1986 and 2014 from Remote Sensing Data.“ Remote Sensing 6, Nr. 12 (2014): 12752–12775. doi:10.3390/rs61212752.   
  • Forkuor, G., Conrad, C., Thiel, M., Ullmann, T.und Zoungrana, E. „Integration of Optical and Synthetic Aperture Radar Imagery for Improving Crop Mapping in Northwestern Benin, West Africa.“ Remote Sensing 6, Nr. 7 (2014): 6472–6499. doi:10.3390/rs6076472   
  • Naghavi, H., Fallah, A., Shataee, S., Latifi, H., Soosani, J., Ramezani, H.und Conrad, C. „Canopy cover estimation across semi-Mediterranean woodlands: application of high-resolution earth observation data.“ Journal of Applied Remote Sensing 8, Nr. 1 (2014): 83524. doi:10.1117/1.JRS.8.083524   
  • Schmidt, M., Klein, D., Conrad, C., Dech, S.W.und Paeth, H. „On the relationship between vegetation and climate in tropical and northern Africa.“ Theoretical and Applied Climatology 115, 1-2 (2014): 341–353. doi:10.1007/s00704-013-0900-6   
  • Shahabfar, A., Ghulam, A.und Conrad, C. „Understanding Hydrological Repartitioning and Shifts in Drought Regimes in Central and South-West Asia Using MODIS Derived Perpendicular Drought Index and TRMM Data.“ IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 7, Nr. 3 (2014): 983–993. doi:10.1109/JSTARS.2013.2284006   

2013

  • Asam, S., Fabritius, H., Klein, D., Conrad, C.und Dech, S.W. „Derivation of leaf area index for grassland within alpine upland using multi-temporal RapidEye data.“ International Journal of Remote Sensing 34, Nr. 23 (2013): 8628–8652. doi:10.1080/01431161.2013.845316   
  • Conrad, C., Dech, S.W., Hafeez, M., Lamers, J.P. A.und Tischbein, B. „Remote sensing and hydrological measurement based irrigation performance assessments in the upper Amu Darya Delta, Central Asia.“ Physics and Chemistry of the Earth, Parts A/B/C 61-62 (2013): 52–62. doi:10.1016/j.pce.2013.05.002   
  • Conrad, C., Rahmann, M., Machwitz, M., Stulina, G., Paeth, H.und Dech, S.W. „Satellite based calculation of spatially distributed crop water requirements for cotton and wheat cultivation in Fergana Valley, Uzbekistan.“ Global and Planetary Change 110 (2013): 88–98. doi:10.1016/j.gloplacha.2013.08.002   
  • Dietz, A.J., Künzer, C.und Conrad, C. „Snow-cover variability in central Asia between 2000 and 2011 derived from improved MODIS daily snow-cover products.“ International Journal of Remote Sensing 34, Nr. 11 (2013): 3879–3902. doi:10.1080/01431161.2013.767480   
  • Dubovyk, O., Menz, G., Conrad, C., Kan, E., Machwitz, M.und Khamzina, A. „Spatio-temporal analyses of cropland degradation in the irrigated lowlands of Uzbekistan using remote-sensing and logistic regression modeling.“ Environmental Monitoring and Assessment 185, Nr. 6 (2013): 4775–4790. doi:10.1007/s10661-012-2904-6   
  • Dubovyk, O., Menz, G., Conrad, C., Lamers, J.P. A., Lee, A.und Khamzina, A. „Spatial targeting of land rehabilitation: a relational analysis of cropland productivity decline in arid Uzbekistan.“ Erdkunde 67, Nr. 2 (2013): 167–181. doi:10.3112/erdkunde.2013.02.05   
  • Dubovyk, O., Menz, G., Conrad, C., Thonfeld, F.und Khamzina, A. „Object-based identification of vegetation cover decline in irrigated agro-ecosystems in Uzbekistan.“ Quaternary International 311 (2013): 163–174. doi:10.1016/j.quaint.2013.07.043   
  • Gessner, U., Machwitz, M., Conrad, C.und Dech, S.W. „Estimating the fractional cover of growth forms and bare surface in savannas. A multi-resolution approach based on regression tree ensembles.“ Remote Sensing of Environment 129 (2013): 90–102. doi:10.1016/j.rse.2012.10.026   
  • Löw, F., Michel, U., Dech, S.W.und Conrad, C. „Impact of feature selection on the accuracy and spatial uncertainty of per-field crop classification using Support Vector Machines.“ ISPRS Journal of Photogrammetry and Remote Sensing 85 (2013): 102–119. doi:10.1016/j.isprsjprs.2013.08.007   
  • Tischbein, B., Manschadi, A.M., Conrad, C., Hornidge, A.-K., Bhaduri, A., Ul Hassan, M.M., Lamers, J.P. A., Awan, U.K.und Vlek, P.L. G. „Adapting to water scarcity: constraints and opportunities for improving irrigation management in Khorezm, Uzbekistan.“ Water Science and Technology: Water Supply 13, Nr. 2 (2013): 337–348. doi:10.2166/ws.2013.028   

2012

  • Ayanu, Y.Z., Conrad, C., Nauss, T., Wegmann, M.und Koellner, T. „Quantifying and Mapping Ecosystem Services Supplies and Demands: A Review of Remote Sensing Applications.“ Environmental Science & Technology 46, Nr. 16 (2012): 8529–8541. doi:10.1021/es300157u   
  • Edlinger, J., Conrad, C., Lamers, J.P. A., Khasankhanova, G.und Koellner, T. „Reconstructing the Spatio-Temporal Development of Irrigation Systems in Uzbekistan Using Landsat Time Series.“ Remote Sensing 4, Nr. 12 (2012): 3972–3994. doi:10.3390/rs4123972   
  • Fritsch, S., Machwitz, M., Ehammer, A., Conrad, C.und Dech, S.W. „Validation of the collection 5 MODIS FPAR product in a heterogeneous agricultural landscape in arid Uzbekistan using multitemporal RapidEye imagery.“ International Journal of Remote Sensing 33, Nr. 21 (2012): 6818–6837. doi:10.1080/01431161.2012.692834   

2011

  • Awan, U.K., Tischbein, B., Conrad, C., Martius, C.und Hafeez, M. „Remote Sensing and Hydrological Measurements for Irrigation Performance Assessments in a Water User Association in the Lower Amu Darya River Basin.“ Water Resources Management 25, Nr. 10 (2011): 2467–2485. doi:10.1007/s11269-011-9821-2   
  • Colditz, R.R., Conrad, C.und Dech, S.W. „Stepwise Automated Pixel-Based Generation of Time Series Using Ranked Data Quality Indicators.“ IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 4, Nr. 2 (2011): 272–280. doi:10.1109/JSTARS.2010.2048703   
  • Colditz, R.R., Schmidt, M., Conrad, C., Hansen, M.C.und Dech, S.W. „Land cover classification with coarse spatial resolution data to derive continuous and discrete maps for complex regions.“ Remote Sensing of Environment 115, Nr. 12 (2011): 3264–3275. doi:10.1016/j.rse.2011.07.010   
  • Conrad, C., Colditz, R.R., Dech, S.W., Klein, D.und Vlek, P.L. G. „Temporal segmentation of MODIS time series for improving crop classification in Central Asian irrigation systems.“ International Journal of Remote Sensing 32, Nr. 23 (2011): 8763–8778. doi:10.1080/01431161.2010.550647   
  • Tischbein, B., Manschadi, A.M., Hornidge, A.-K., Conrad, C., Lamers, J.P. A., Oberkircher, L., Schorcht, G.und Vlek, P.L. G. „Ansätze für eine effizientere Wassernutzung in der Provinz Khorezm, Usbekistan.“ Hydrologie und Wasserbewirtschaftung 55, Nr. 2 (2011): 116–125. http://www.hywa-online.de/ansaetze-fuer-eine-effizientere-wassernutzung-in-der-provinz-khorezm-usbekistan/   

2010

  • Conrad, C., Fritsch, S., Zeidler, J., Rücker, G.R.und Dech, S.W. „Per-Field Irrigated Crop Classification in Arid Central Asia Using SPOT and ASTER Data.“ Remote Sensing 2, Nr. 4 (2010): 1035–1056. doi:10.3390/rs2041035   
  • Cord, A., Conrad, C., Schmidt, M.und Dech, S.W. „Standardized FAO-LCCS land cover mapping in heterogeneous tree savannas of West Africa.“ Journal of Arid Environments 74, Nr. 9 (2010): 1083–1091. doi:10.1016/j.jaridenv.2010.03.012   
  • Manschadi, A.M., Oberkircher, L., Tischbein, B., Conrad, C., Hornidge, A.-K., Bhaduri, A., Schorcht, G., Lamers, J.P. A.und Vlek, P.L. G. „"White gold" and Aral Sea disaster - towards more efficient use of water resources in the Khorezm region, Uzbekistan.“ Lohmann Information 45, Nr. 1 (2010): 34–47

2009

  • Esch, T., Himmler, V., Schorcht, G., Thiel, M., Wehrmann, T., Bachofer, F., Conrad, C., Schmidt, M.und Dech, S.W. „Large-area assessment of impervious surface based on integrated analysis of single-date Landsat-7 images and geospatial vector data.“ Remote Sensing of Environment 113, Nr. 8 (2009): 1678–1690. doi:10.1016/j.rse.2009.03.012   
  • Wagner, S., Kunstmann, H., Bárdossy, A., Conrad, C.und Colditz, R.R. „Water balance estimation of a poorly gauged catchment in West Africa using dynamically downscaled meteorological fields and remote sensing information.“ Physics and Chemistry of the Earth, Parts A/B/C 34, 4-5 (2009): 225–235. doi:10.1016/j.pce.2008.04.002   

2008

  • Colditz, R.R., Conrad, C., Wehrmann, T., Schmidt, M.und Dech, S.W. „TiSeG: A Flexible Software Tool for Time-Series Generation of MODIS Data Utilizing the Quality Assessment Science Data Set.“ IEEE Transactions on Geoscience and Remote Sensing 46, Nr. 10 (2008): 3296–3308. doi:10.1109/TGRS.2008.921412   
  • Sommer, R., Kienzler, K., Conrad, C., Ibragimov, N., Lamers, J.P. A., Martius, C.und Vlek, P.L. G. „Evaluation of the CropSyst model for simulating the potential yield of cotton.“ Agronomy for Sustainable Development 28, Nr. 2 (2008): 345–354. doi:10.1051/agro:2008008   

2007

  • Conrad, C., Dech, S.W., Hafeez, M., Lamers, J.P. A., Martius, C.und Strunz, G. „Mapping and assessing water use in a Central Asian irrigation system by utilizing MODIS remote sensing products.“ Irrigation and Drainage Systems 21, 3-4 (2007): 197–218. doi:10.1007/s10795-007-9029-z   
  • Shi, Z., Rücker, G.R., Mueller, M., Conrad, C., Ibragimov, N., Lamers, J.P. A., Martius, C., Strunz, G., Dech, S.W.und Vlek, P.L. G. „Modeling of Cotton Yields in the Amu Darya River Floodplains of Uzbekistan Integrating Multitemporal Remote Sensing and Minimum Field Data.“ Agronomy Journal 99, Nr. 5 (2007): 1317. doi:10.2134/agronj2006.0260   
  • Walz, Y., Maier, S.W., Dech, S.W., Conrad, C.und Colditz, R.R. „Classification of burn severity using Moderate Resolution Imaging Spectroradiometer (MODIS): A case study in the jarrah-marri forest of southwest Western Australia.“ Journal of Geophysical Research 112, G2 (2007): 188. doi:10.1029/2005JG000118   

Publications - Books / Book chapters

2018

  • Schönbrodt-Stitt, S., Conrad, C., Dimov, D., Ergashev, I., Löw, F., Morper-Busch, L., Muminov, S., Ruziev, I., Schorcht, G., Solodky, G., Sorokin, A., Sorokin, D., Stulina, G., Toshpulatov, R., Zaitov, S., Kitapbayev, A.und Unger-Shayesteh, K. „The WUEMoCA Tool for Monitoring Irrigated Cropland Use and Water Use Efficiency at the Landscape Level of the Aral Sea Basin.“ In Novel Methods and Results of Landscape Research in Europe, Central Asia and Siberia, Vol. 4 Optimising Agricultural Landscapes. Hrsg. von FSBSI "Pryanishnikov Institute of Agrochemistry", 351–6. Moscow2018.

2014

  • Fritsch, S., Conrad, C., Dürbeck, T.und Schorcht, G. „3.6 Mapping marginal land in Khorezm using GIS and remote sensing techniques.“ In Restructuring land allocation, water use and agricultural value chains: Technologies, policies and practices for the lower Amudarya region. Hrsg. von John P. Lamers et al. 1. Auflage, 167–78. Göttingen: V & R Unipress Bonn University Press, 2014. doi:10.14220/9783737002974.167   

2013

  • Forkuor, G., Conrad, C., Landmann, T., Thiel, M.und Zoungrana, E. „Improving agricultural land use mapping in West Africa using multi-temporal Landsat and RapidEye data.“ In From the basics to the service: Proceedings of the 5th RESA Workshop; Neustrelitz, 20. - 21. March 2013, DLR. Hrsg. von Erik Borg und Holger Daedolow. Berlin: GITO-Verl., 2013.
  • Lex, S., Conrad, C.und Schorcht, G. „Analyzing the seasonal relations between in-situ fPAR/LAI of cotton and spectral information of RapidEye.“ In From the basics to the service: Proceedings of the 5th RESA Workshop; Neustrelitz, 20. - 21. March 2013, DLR. Hrsg. von Erik Borg und Holger Daedolow. Berlin: GITO-Verl., 2013.

2012

  • Conrad, C., Fritsch, S., Lex, S., Löw, F., Rücker, G.R., Schorcht, G., Sultanov, M.und Lamers, J.P. A. „Potenziale des Red Edge Kanals von RapidEye zur Unterscheidung und zum Monitoring landwirtschaftlicher Anbaufrüchte am Beispiel des usbekischen Bewässerungssystems Khorezm.“ In From the basics to the service: Erste Ergebnisse 4. RESA Workshop. Hrsg. von Erik Borg und Holger Daedolow. Berlin: GITO-Verl., 2012.
  • Conrad, C., Schorcht, G., Tischbein, B., Davletov, S., Sultonov, M.und Lamers, J.P. A. „Agro-Meteorological Trends of Recent Climate Development in Khorezm and Implications for Crop Production.“ In Cotton, Water, Salts and Soums: Economic and Ecological Restructuring in Khorezm, Uzbekistan. Bd. 50. Hrsg. von Christopher Martius et al., 25–36. Dordrecht: Springer Science+Business Media B.V, 2012. doi:10.1007/978-94-007-1963-7_2   
  • Feilhauer, H., Stenzel, S., Kübert, C., Metz, A., Conrad, C., Ehlers, M., Esch, T., Klein, D., Oldenburg, C., Reinartz, P.und Schmidtlein, S. „RapidEye im Projekt MSAVE - Multisaisonale Fernerkundung für das Vegetationsmonitoring.“ In Vom Algorithmus zum Produkt: Tagungsband zum 4. RESA Workshop, Neustrelitz, 21. - 22. März 2012, Orangerie Neustrelitz; [RapidEye Science Archive (RESA). Hrsg. von Erik Borg, Holger Daedolow und Ryan Johnson, 153–64. Berlin: GITO, 2012.
  • Ruecker, G., Conrad, C., Ibragimov, N., Kienzler, K., Ibrakhimov, M., Martius, C.und Lamers, J.P. A. „Spatial Distribution of Cotton Yield and its Relationship to Environmental, Irrigation Infrastructure and Water Management Factors on a Regional Scale in Khorezm, Uzbekistan.“ In Cotton, Water, Salts and Soums: Economic and Ecological Restructuring in Khorezm, Uzbekistan. Bd. 21. Hrsg. von Christopher Martius et al., 59–68. Dordrecht: Springer Science+Business Media B.V, 2012. doi:10.1007/978-94-007-1963-7_4   
  • Tischbein, B., Awan, U.K., Abdullaev, I., Bobojonov, I., Conrad, C., Jabborov, H., Forkutsa, I., Ibrakhimov, M.und Poluasheva, G. „Water Management in Khorezm: Current Situation and Options for Improvement (Hydrological Perspective).“ In Cotton, Water, Salts and Soums: Economic and Ecological Restructuring in Khorezm, Uzbekistan. Bd. 73. Hrsg. von Christopher Martius et al., 69–92. Dordrecht: Springer Science+Business Media B.V, 2012. doi:10.1007/978-94-007-1963-7_5   

2011

  • Fritsch, S., Conrad, C.und Dech, S.W. „Einsatz multitemporaler RapidEye-Daten zur feldbasierten Ableitung von FPAR und Landnutzung in einer zentralasiatischen Bewässerungsregion.“ In RapidEye Science Archive (RESA) - erste Ergebnisse: 3. RESA Workshop; Tagungsband zum 3. RESA Workshop, Neustrelitz, 23. - 24. März 2011, Orangerie Neustrelitz. Hrsg. von Erik Borg und Holger Daedolow. Berlin: GITO, 2011.

2010

  • Conrad, C., Rücker, G.R., Mund, J.-P., Schmidt, M.und Mehl, H. „Beiträge der Satellitenfernerkundung für ein nachhaltiges und grenzüberschreitendes Wassermanagement in Zentralasien.“ In Studien zum internationalen Umweltmanagement.: Kooperationspotenziale zwischen Deutschland und Zentralasien. Hrsg. von Matthias Kramer, 254–66. Wiesbaden: Gabler Verlag / Springer Fachmedien Wiesbaden GmbH Wiesbaden, 2010.

2009

  • Colditz, R.R., Conrad, C., Wehrmann, T., Schmidt, M.und Dech, S.W. „Analysis of the Quality of Collection 4 and 5 Vegetation Index Time Series from MODIS.“ In Quality aspects in spatial data mining: International Symposium on Spatial Data Quality; 5th symposium, ISSDQ 2007, in Enschede, The Netherlands; best papers. Hrsg. von Alfred Stein, Wenzhong Shi und Wietske Bijker. Boca Raton, Fla.: CRC Press, 2009.
  • Giriraj, A., Joshi, P.K., Barbar, S., Wegmann, M., Conrad, C., Sudhakar, S.und Beierkuhnlein, C. „Systematic Assessment of Forest Cover Change and Forest Fragmentation in Indian Sub-Continent using Multi-Scale Satellite Remote Sensing Inputs.“ In Geoinformatics for natural resource management. Hrsg. von P. K. Joshi, 185–213. New York: Nova Science Publishers, 2009.

Publications - Conference contributions

2019


2018

  • Usman, M. und Conrad, C. (2018) Innovative Impulses Reducing the Water Footprint of the Global Cotton-Textile Industry towards the UN-Sustainable Development Goals. In Part of Project "InoCottonGrow".
  • Sultanov, M., Conrad, C., Bauer, C., Thiel, M. und Ibrakhimov, M. (2018) Remote sensing of soil salinity levels in irrigated cotton production systems in the Aral Sea Basin.
  • Usman, M. und Conrad, C. (2018) Remote Sensing for supporting water footprint analysis of cotton production chain. In Mid-term Conference of project "InoCottonGrow".
  • Conrad, C., Dokhovny, V. und Schönbrodt-Stitt, S. (2018) Remote sensing and GIS for regional land and water management in Central Asia: Lessons learnt and a call for viable cooperation. In International Symposium on Water and Land Resources in Central Asia. 09-11th October 2018, Almaty, Kazakhstan.
  • Netzband, M., Dukhovny, V., Kenjabaev, S., Morper-Busch, L., Muminov, S., Schönbrodt-Stitt, S., Schorcht, G., Solodky, G., Sorokin, A., Sorokin, D., Stulina, G. und Conrad, C. (2018) Indicator-based assessment of the complex state of water use in the Aral Sea Basin. In International Symposium on Water and Land Resources in Central Asia, 09-11th October 2018, Almaty, Kazakhstan.
  • Kenjabaev, S., Degtyareva, O., Sultanov, M., Thiel, M. und Conrad, C. (2018) Monitoring biophysical parameters of irrigated rice production in the lowlands of the Aral Sea Basin from space. In Volkswagen Status Conference Between Europe and the Orient, 16-19th April, Almaty, Kazakhstan.
  • Ibrakhimov, M., Sultanov, M., Conrad, C. und Lamers, J. (2018) Combining remote sensing and hydrological modeling for assessing the dynamics of soil salinity in the Aral Sea Basin. In Volkswagen Status Conference Between Europe and the Orient, 16-19th April, Almaty, Kazakhstan.
  • Degtyareva, O., Löw, F., Conrad, C., Thiel, M. und Muratova, N. (2018) Tapping the potential of Landsat archives for the monitoring of irrigated land use development in the lower Syr Darya catchment, Kazakhstan, 1984-2017. In Volkswagen Status Conference Between Europe and the Orient, 16-19th April, Almaty, Kazakhstan.
  • Bauer, C., Löw, F., Klein, D. und Conrad, C. (2018) Detecting spatio-temporal patterns of land abandonment in the lower region of the Amu Darya and Syr Darya Rivers using earth observation data. In Volkswagen Status Conference Between Europe and the Orient, 16-19th April, Almaty, Kazakhstan.
  • Conrad, C., Lamers, J. P. A., Muratova, N. und Dukhovny, V. (2018) Modeling, GIS, and Remote Sensing for Discussion Support in Irrigated Land Management in the inner Aral Sea Basin. In Volkswagen Status Conference Between Europe and the Orient, 16-19th April, Almaty, Kazakhstan.
  • Borg, E., Conrad, C., Truckenbrodt, S., Hüttich, C., Ahmadian, N., Dahms, T., Heupel, K., Spengler, D. und Missling, K. -D. (2018) Joint Experiment for Crop Assessment and Monitoring (JECAM) - Test Site DEMMIN 2018. In International Geoscience and Remote Sensing Symposium, IGARSS 2018, the 38th annual symposium, 22-27th July, Valencia, Spain.
  • Conrad, C., Ahmadian, N., Borg, E., Gläßer, C., Hohmann, C., Hüttich, C., Itzerott, S., Maass, H., Missling, K. -D., Schmullius, C., Truckenbrodt, S. und Spengler, D. (2018) In situ Messungen für ein fernerkundungsbasiertes landwirtschaftliches Monitoring: Status-Update für die norddeutsche JECAM-Site DEMMIN. In Symposium "Neue Perspektiven der Erdbeobachtung".
  • Conrad, C. (2018) Wenig Boden, knappes Wasser und viel Salz - Herausforderung Ernährungssicherung in der Aralsee Region. In Vortragsreihe 2018: Boden und Ernährung - Die Grundlagen unseres Daseins.
  • Spengler, D., Ahmadian, N., Borg, E., Harfenmeister, K., Hohmann, C., Hüttich, C., Itzerott, S., Maass, H., Missling, K. -D., Schmullius, C., Truckenbrodt, S. und Conrad, C. (2018) The German JECAM site DEMMIN: status and future perspectives   . In Annual JECAM Meeting, 17-20th September, Taichung, Taiwan.
  • Spengler, D., Conrad, C., Beyrich, F., Böttcher, F., Borg, E., Harfenmeister, K., Hohmann, C. und Itzerott, S. (2018) Etablierung des Cal/Val-Standorts DEMMIN als internationales Testgebiet für fernerkundliche Methodenentwicklung. In GFZ/DWD Austauschtreffen 2018, Braunschweig, Germany.

2017

  • Dimov, D., Schönbrodt-Stitt, S. und Conrad, C. (2017) MODIS Zeitreihen für den Aufbau eines Landnutzungsinformationssystems. In Deutscher Kongress für Geographie, Tübingen.
  • Bauer, C., Thiel, M., Löw, F., Klein, D. und Conrad, C. (2017) Spatio-Temporal Patterns of Land Abandonment in the Lower Region of Amu Darya River, Tropentag 2017.
  • Dimov, D., Löw, F., Ibrakhimov, M., Stulina, G. und Conrad, C. (2017) SAR and optical time series for crop classification, 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS).
  • Schönbrodt-Stitt, S., Conrad, C., Unger-Shayesteh, K., Gafurov, A. und Gerlitz, L. (2017) Earth Observation within CAWa Project for Water Management in Central Asia, ISTC Scientific Advisory Committee (SAC) Seminar - Water Management in Central Asia and the Caucasus for agricultural, industrial and urban applications.
  • Schönbrodt-Stitt, S., Conrad, C., Dukhovny, V., Morper-Busch, L., Dimov, D., Schorcht, G., Toshpulatov, R. und Zaitov, S. (2017) A new Tool for Monitoring the Irrigated Cropland Use and Water Use Efficiency in the Amudarya River Basin, Use of Non-conventional Agricultural Water Resources to Strengthen Water and Food Security in Transboundary Watersheds of the Amudarya River Basin.
  • Morper-Busch, L., Dimov, D., Toshpulatov, R., Schönbrodt-Stitt, S. und Conrad, C. (2017) WUEMoCA Open-source WebGIS zur Wassernutzungseffizienz in Zentralasien, Deutscher Kongress für Geographie 2017.
  • Kumar-Babu, D., Kaufmann, C., Schmidt, M., Dahms, T. und Conrad, C. (2017) Semi-Autonomous Remote Sensing Time Series Generation Tool, Spie Digital Library.
  • Kumar-Babu, D., Kaufmann, C., Schmidt, M., Dahms, T. und Conrad, C. (2017) Autonomous Time Series Generation of High Spatial Resolution Images - A Feasibility Study, 68th International Astronautical Congress IAC.
  • Bauer, C., Löw, F., Klein, D. and Conrad, C. (2017) Raum-zeitliche Dynamik der agrarischen Landaufgabe in Bewässerungsgebieten am Amu-Darya, DKG 2017.
  • Dimov, D., Morper-Busch, L., Schönbrodt-Stitt, S. und Conrad, C. (2017) From remote sensing to web mapping - integrated geoinformation for land use monitoring in Central Asia, UFZ & DLR: Workshop on Earth Observation Data, Leipzig.
  • Batsaikhan, A., Conrad, C., Asam, S. and Klein, D. (2017) Analyzing the impact of snowmelt timing on grassland green-up dates in the European Alps using webcams. In Japan Society of Photogrammetry and Remote Sensing (JSPRS) Fall Conference 2017, Yamaguchi, Japan.
  • Dimov, D., Löw, F., Ibrakhimov, M., Schönbrodt-Stitt, S. und Conrad, C. (2017) Feature Extraction and Machine Learning for the Classification of Active Cropland in the Aral Sea Basin. In IEEE International Geoscience and Remote Sensing Symposium, Forth Worth, Texas, USA.
  • Dimov, D., Löw, F., Ibrakhimov, M., Stulina, G. und Conrad, C. (2017) SAR and Optical Time Series for Crop Classification. In IEEE International Geoscience and Remote Sensing Symposium, Forth Worth, Texas, USA.
  • Gläßer, C., Gerstmann, H., Conrad, C. und Knöfel, P. (2017) Optimization of multi-temporal Land Use Classification by Integration of Phenological time frames. In 2017 9th International Workshop on the Analysis of Multitemporal Remote Sensing Images (MultiTemp), pp 1-3, Belgium-Brugge.
  • Knöfel, P., Dahms, T., Borg, E. und Conrad, C. (2017) Classification of agricultural land use and derivation of biophysical parameter using SAR and optical data. In Digitale Transformation – Wege in eine zukunftsfähige Landwirtschaft, Lecture Notes in Informatics (LNI), Dresden.
  • Batsaikhan, A., Asam, S., Klein, D. und Conrad, C. (2017) Monitoring grassland phenology on an Alpine transect using webcams, Virtual Alpine Observatory (VAO) Symposium 2017, Bolzano, Italy.
  • Dimov, D., Löw, F., Ibrakhimov, M., Schönbrodt-Stitt, S. und Conrad, C. (2017) Feature extraction and machine learning for the classification of active cropland in the Aral Sea Basin, 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS).

2016

  • Knöfel, P., Spengler, D., Conrad, C. und Borg, E. (2016) GLAM.DE - Global Agricultural Monitoring – The German Contribution, Joint workshop for JECAM/Sen2Agri/Sigma projects, Kiew, Urkaine.
  • Dimov, D., Kuhn, J. und Conrad, C. (2016) Assessment Of Cropping System Diversity In The Fergana Valley Through Image Fusion Of Landsat 8 And Sentinel-1. In ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, pp 173-180, Prague, Czech Republic.
  • Dahms, T., Seissiger, S., Conrad, C. und Borg, E. (2016) Modelling Biophysical Parameters Of Maize Using Landsat 8 Time Series. In ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, pp 171-175, Prague, Czech Republic.
  • Dahms, T., Seissiger, S., Borg, E., Hans-Hermann, V., Fichtelmann, B. und Conrad, C. (2016) Important Variables Modelling Biophysical Vegetation Parameters On Winter Wheat, 5 gemeinsame Jahrestagung der Arbeitskreise „Fernerkundung“ (DGfG) und „Auswertung von Fernerkundungsdaten“ (DGPF), Halle (Saale).
  • Knöfel, P., Dimov, D., Schönbrodt-Stitt, S. und Conrad, C. (2016) Estimation of actual evapotranspiration to derive irrigation efficiency indicators in the Aral Sea Basin, Central Asia. In AK Fernerkundung, Bonn.
  • Kumar Babu, D., Schmidt, M., Dahms, T. und Conrad, C. (2016) Impact on quality and processing time due to change in pre-processing operation sequence on moderate resolution satellite images. In 67th International Astronautical Congress, Guadalajara, Mexico.
  • Knöfel, P., Spengler, D. und Conrad, C. (2016) Phänologische Strukturierung von zeitlich hochauflösenden Sentinel-2-Datensätzen zur Optimierung von Landnutzungsklassifikationen. In Kickoff-Veranstaltung "EO4GEOSS", Bonn.
  • Knöfel, P., Uslar, J. von und Conrad, C. (2016) Einfluss stratifizierter Probennahme auf die Genauigkeit multitemporaler objektbasierter Landnutzungsklassifikation. In 8. RESA Workshop, Bonn.
  • Bolkart, M., Dahms, T., Conrad, C., Latchininsky, A. F. und Löw, F. (2016) Mapping and Monitoring Locust Habitats in the Aral Sea Region based on Satellite Earth Observation Data, 12th International Congress of Orthopterology, Ilhéus, Brazil.
  • Conrad, C., Schönbrodt-Stitt, S., Abdullaev, I., Dimo, D., Ibrakhimov, M., Knöfel, P., Leinich, M., Morper-Busch, L., Schorcht, G., Solodoky, G., Sorokin, A., Sorokin, D., Stulina, G., Toshpulatov, R., Unger-Shayesteh, K., Zaitov, S. und Dukhovny, V. (2016) Remote Sensing and GIS for Supporting the Agricultural Use of Land and Water Resources in the Aral Sea Basin. In Water Resources of Central Asia and their Use - Materials to the International Scientific-Practical Conference devoted to the summing-up of the "Water for Life" decade declared by the United Nations, Almaty, Kazakhstan.
  • Batsaikhan, A., Conrad, C., Klein, D. und Asam, S. (2016) Analyzing phenology of grassland along a transect through altitudinal zones using remote sensing. In 5. gemeinsame Jahrestagung der Arbeitskreise „Fernerkundung“ (DGfG) und „Auswertung von Fernerkundungsdaten“ (DGPF), Halle / Saale, Germany.

2015

  • Knöfel, P. und Conrad, C. (2015) Evaluation of a Modified SEBAL Algorithm to Estimate Actual Evapotranspiration in Cotton Ecosystems of Central Asia using Microwave and Optical Remote Sensing Data. In European Geosciences Union General Assembly 2015, Wien, Austria.
  • Lex, S., Dahms, T., Zellner, P., Fritsch, S., Conrad, C. und Schmidt, M. (2015) Generation and evaluation of time series for the derivation of biophysical parameters as an input for a crop model, 7. RESA Workshop 2015 - Nutzung von RapidEye-Daten im Kontext der Synergie mit anderen Sensoren und in Vorbereitung auf künftige Missionen.
  • Löw, F., Fliemann, E., Conrad, C., Dukhovny, V., Muratova, N., Ibrakhimov, M. und Lamers, J. (2015) First results from the LaVaCCA project: Assessing land value changes and developing a discussion support tool for improved land use planning in the irrigated lowlands of Central Asia. In The 36th International Symposium on Remote Sensing of Environment, Berlin.
  • Kübert, C., Conrad, C., Klein, D. und Dech, S. (2015) Deriving phenological layers for Germany from remote sensing data: spatio-temporal analysis and validity. In Phenology 2015 - Challenges in Phenology, p 72, Kusadasi, Türkei.
  • Gerstmann, H., Knöfel, P., Xu, X., Doktor, D., Möller, M., Thürkow, D., Conrad, C. und Gläßer, C. (2015) Phänologische Strukturierung von zeitlich hochauflösenden Sentinel-2-Datensätzen zur Optimierung von Landnutzungsklassifikationen. In Workshop: "Nutzung der Sentinels und nationalen Erdbeobachtungs-Missionen", Bonn.
  • Knöfel, P., Gerstmann, H., Xu, X. und Conrad, C. (2015) Phänologische Strukturierung von zeitlich hochauflösenden Sentinel-2-Datensätzen zur Optimierung von Landnutzungsklassifikationen. In 7. RESA Workshop, Bonn.
  • Knöfel, P., Löw, F. und Conrad, C. (2015) Object-Based Land Use Classification of Agricultural Land by Coupling Multi-Temporal Spectral Characteristics and Phenological Events in Germany. In European Geosciences Union General Assembly 2015, Wien, Austria.
  • Dahms, T., Lex, S., Zellner, P., Fritsch, S., Schmidt, M. und Conrad, C. (2015) Techs4Times - innovative techniques for the generation and evaluation of Sentinel time series, DLR-SentinelWorkshop - Nutzung der Sentinels und nationalen Erdbeobachtungs-Missionen.
  • Knöfel, P., Löw, F., Möller, M. und Conrad, C. (2015) Evaluation of Uncertainty and Accuracy in Multi-Temporal Object-Based Land Use Classification, 36th International Symposium on Remote Sensing of Environment, Berlin.
  • Knöfel, P., Löw, F., Gerstmann, H., Möller, M., Xu, X. und Conrad, C. (2015) Introduction of a multifunctional tool for the evaluation of uncertainty and accuracy in multitemporal object-based land use classification. In SPIE Remote Sensing Conference, Toulouse, France.
  • Bauer, C., Löw, F. und Conrad, C. (2015) Explaining and assessing the spatial and temporal patterns of low productivity arable land and land abandonment - using satellite observation and socioeconomic data of the irrigated lowlands of Central Asia, Modern problems of hydrogeology, engineering geology, geoecology and ways of their solutions, Tashkent, Usbekistan.
  • Bauer, C., Löw, F. und Conrad, C. (2015) Explaining and assessing spatial and temporal patterns of low productivity arable land and land abandonment - using satellite observation and socioeconomi cdata of the irrigated lowlands of Central Asia, AK Fernerkundung, Bonn, Deutschland.
  • Knöfel, P. und Conrad, C. (2015) Introduction of a modified soil heat flux approach and its potential for improving remote sensing based surface energy balance. In Third Space for Hydrology Workshop, Frascati, Italy.
  • Bauer, C., Löw, F. und Conrad, C. (2015) Explaining and assessing the spatial and temporal patterns of low productivity arable land and land abandonment - using satellite observation and socioeconomic data of the irrigated lowlands of Central Asia, Stadt Land Schaf(f)t – Land Schaf(f)t Stadt, Berlin, Deutschland.
  • Löw, F., Bauer, C., Conrad, C., Lamers, J., Dukhovny, V., Stulina, G., Kenjabaev, S., Muratova, N., Ibrakhimov, H. und Salnikov, V. (2015) The LaVaCCA Project, Geography, Culture and Society for Our Future Earth.

2014

  • Knöfel, P., Conrad, C., Falk, U. und Bauer-Marschallinger, B. (2014) Validation of an improved energy balance model to estimate actual evapotranspiration in irrigated cotton ecosystems of Central Asia, Geophysical Research Abstracts Vol.16, EGU2014-10521 , EGU General Assembly, 27. April - 02. May 2014, Vienna, Austria.
  • Zellner, P., Schorcht, G., Borg, E. und Conrad, C. (2014) Towards quantifying stress factors in wheat and maize monitoring, 3. gemeinsamer Workshop der Arbeitskreise: Auswertung von Fernerkundungsdaten der DGPF e.V. und Fernerkundung der DGfG e.V., Berlin.
  • Rossi, M., Kübert, C. und Conrad, C. (2014) Statistische Analyse von Standortfaktoren zur Erklärung von aus Fernerkundungsdaten abgeleiteten phänologischen Zeitpunkten am Beispiel von Grünlandflächen im Alpenvorland. In 3. gemeinsamer Workshop der Arbeitskreise: Auswertung von Fernerkundungsdaten der DGPF e.V. und Fernerkundung der DGfG e.V., Berlin.
  • Baron, D., Golovko, D., Conrad, C. und Roessner, S. (2014) Raumzeitliche Analyse der Schneebedeckung auf der Basis von MODIS Zeitreihendaten - Beitrag zur hydrometeorologischen Charakterisierung eines Gebiets hoher Hangrutschungsgefährdung in Süd-Kirgistan, 3. gemeinsamer Workshop der Arbeitskreise: Auswertung von Fernerkundungsdaten der DGPF e.V. und Fernerkundung der DGfG e.V., Berlin.
  • Thiel, M., Gessner, U., Forkuor, G., Knauer, K., Feuerstein, S., Landkammer, S. und Conrad, C. (2014) Comparison of Remote Sensing derived LULC in two rural test sites in the Sudanian Savanna Zone. In AARSE 2014, Johannesburg, South Africa.

2013

  • Forkuor, G., Conrad, C., Thiel, M. und Zeidler, J. (2013) Improving Crop Area Estimation in West Africa Using Multiresolution Satellite Data. In AfricaGIS - Global Geospatial Conference 2013.
  • Dietz, A., Künzer, C. und Conrad, C. (2013) Snow cover development in Central Asia derived from daily, medium resolution remote sensing data between 1986 and 2012. In Proceedings of the 70th Eastern Snow Conference ESC hold at the University of Waterloo Summit Centre for the Environment.
  • Kübert, C., Conrad, C., Klein, D. und Dech, S. (2013) Land Surface Phenology from MODIS data in Germany. In MultiTemp 2013: 7th International Workshop on the Analysis of Multi-temporal Remote Sensing Images, pp 1-4, Banff, Canada.
  • Conrad, C. (2013) Präsentation der wichtigsten Ergebnisse des IPCC für Zentralasien mit besonderem Fokus auf das Murghab River Basin, Turkmenistan, GIZ-Workshop für Water Manager.
  • Conrad, C. (2013) Satellitenfernerkundung zur Analyse der Bewirtschaftung von Land- und Wasserressourcen in Trockengebieten. In Vortragsreihe der Fränkischen Geographischen Gesellschaft, pp 1-20.
  • Knöfel, P., Conrad, C. und Dech, S. (2013) Potential of Remote Sensing Derived Soil Moisture for the Estimation of Actual Evapotranspiration in Cotton Ecosytems in Middle Asia. In Abstract Book, p 1.
  • Knöfel, P., Conrad, C. und Dech, D. (2013) Potential of Remote Sensing Derived Soil Moisture for the Estimation of Actual Evapotranspiration in Cotton Ecosystems of Middle Asia.
  • Dahms, T., Kübert, C. und Conrad, C. (2013) Ableitung von phänologischen Parametern aus hochauflösenden Fernerkundungsdaten. In Arbeitskreis Fernerkundung 2013, Tübingen, Germany.

2012

  • Schorcht, G., Löw, F., Fritsch, S. und Conrad, C. (2012) Crop classification at subfield level using RapidEye time series and graph theory algorithms. In Proceedings of SPIE Remote Sensing 8538, Remote Sensing for Agriculture, Ecosystems, and Hydrology XIV, 85311G (October 19, 2012); doi:10.1117/12.974670   .
  • Knoefel, P., Conrad, C., Falk, U. und Dech, S. (2012) Validation of remotely sensed estimation of actual evapotranspiration in cotton ecosystems of Middle Asia.
  • Knoefel, P., Conrad, C., Falk, U. und Dech, S. (2012) Comparative analysis and validation of remotely sensed estimation of actual evapotranspiration in cotton ecosystems of Middle Asia. In Geophysical Research Abstracts, p 9251, EGU General Assembly, 22 - 27 April 2012. Vienna, Austria.
  • Löw, F., Schorcht, G., Michel, U., Dech, S. und Conrad, C. (2012) Per-field crop classification in irrigated agricultural regions in middle Asia using random forest and support vector machine ensemble. In Proceedings of SPIE Remote Sensing 8538, 24-27 September 2012, Earth Resources and Environmental Remote Sensing/GIS Applications III, Edinburgh, UK.
  • Shahabfar, A., Reinwand, M., Conrad, C. und Schorcht, G. (2012) A re-examination of perpendicular drought indices over central and southwest Asia. In SPIE Remote Sensing, 24-27 September 2012, Edinburgh, UK.
  • Dietz, A., Conrad, C. und Kuenzer, C. (2012) Snow cover variability in Central Asia during the last decade derived from MODIS. In International Geographical Congress. 26.-30.08.2012, Cologne, Germany.
  • Lex, S., Schorcht, G. und Conrad, C. (2012) Ableitung von LAI und FPAR aus in situ Daten und RapidEye Zeitserien für Baumwolle im Ferganatal, Usbekistan, Treffen des AK „Fernerkundung“ der DGfG und des AK „Auswertung von Fernerkundungsdaten“ der DGPF, 4.-5.10.2012, Bochum, Germany.
  • Dubovyk, O., Menz, G., Conrad, C. und Khamzina, A. (2012) Object-based cropland degradation identification: a case in Uzbekistan. In SPIE International Symposium on Remote Sensing, September 24-27 201, Edinburgh, UK.
  • Forkuor, G., Landmann, T., Conrad, C. und Dech, S. (2012) Agricultural Land Use Mapping in the Sudanian Savanna of West Africa: Current Status and Future Possibilities. In IEEE International Geoscience and Remote Sensing Symposium, IGARSS.
  • Kübert, C., Conrad, C., Dahms, T., Klein, D., Metz, A., Stenzel, S. und Dech, S. (2012) Ableitung von phänologischen Zuständen aus multitemporalen Fernerkundungsdaten, Treffen des AK „Fernerkundung“ der DGfG und des AK „Auswertung von Fernerkundungsdaten“ der DGPF, 4.-5.10.2012, Bochum, Germany.
  • Conrad, C., Löw, F., Rudloff, M. und Schorcht, G. (2012) Assessing irrigated cropland dynamics in central Asia between 2001 and 2010 based on MODIS time series. In Proceedings SPIE 8531, Remote Sensing for Agriculture, Ecosystems and Hydrology XIV.
  • Knöfel, P., Conrad, C. und Dech, S. (2012) Validierung und Optimierung der fernerkundungsbasierten Bestimmung der tatsächlichen Evapotranspiration. In "1. Gemeinsames Arbeitskreis-Treffen AK „Fernerkundung“ der DGfG und AK „Interpretation von Fernerkundungsdaten“ der DGPF".

2011

  • Knoefel, P., Falk, U., Conrad, C. und Dech, S. (2011) Modellierung der tatsächlichen Evapotranspiration in der Bewässerungsregion Khorezm, Usbekistan, AK Fernerkundung, 29-30 September, Würzburg, Germany.
  • Fritsch, S., Machwitz, M., Conrad, C. und Dech, S. (2011) Relationships between high resolution RapidEye based fPAR and MODIS vegetation indices in a heterogeneous agricultural region. In Proceedings of SPIE Remote Sensing, 19.-22. Sep. 2011, ISBN: 9780819488015, Prague, Czech Republic.
  • Machwitz, M., Wegmann, M., Conrad, C. und Dech, S. (2011) Remote Sensing based estimation of potential terrestrial carbon stocks in West Africa. In 34rd International Symposium on Remote Sensing of Environment, Sydney, Australia.
  • Conrad, C., Machwitz, M., Schorcht, G., Löw, F., Fritsch, S. und Dech, S. (2011) Potentials of RapidEye time series for improved classification of crop rotations in heterogeneous agricultural landscapes: Experiences from irrigation systems in Central Asia. In Proceedings of SPIE Remote Sensing, 19.-22. Sep. 2011, ISBN: 9780819488015, Prague, Czech Republic.
  • Kübert, C., Klein, D., Wegmann, M., Conrad, C. und Dech, S. (2011) Multi-sensor-concepts for the assessment of land surface phenology using remote sensing data., PhenoALP project final meeting, 12.-14.Oct. 2011, Torgnon, Italy.
  • Conrad, C. (2011) Satellitenfernerkundung und Bewässerungsmanagement in Zentralasien. In Umweltcluster Bayern. Cluster-Forum International - Zentralasien, Chancen für Umwelttechnologie in Kasachstan, Usbekistan und Aserbaidschan, 17. Nov. 2011, Munich, Germany.
  • Bohovic, R., Klein, D. und Conrad, C. (2011) Phenological patterns for Central Asia. Vegetation dynamics by the means of remote sensing. In 31st EARSeL Symposium and 34th General Assembly, 30. Mai - 02. Jun. 2011, Prague, Czech Republic. (nicht veröffentlicht).
  • Fritsch, S., Machwitz, M., Ehammer, A., Conrad, C. und Dech, S. (2011) Validation of the collection 5 MODIS FPAR product in a heterogeneous agricultural region, AK Fernerkundung, 29-30 September, Würzburg, Germany.
  • Dubovyk, O., Khamzina, A., Conrad, C. und Menz, G. (2011) Mapping cropland marginalization in the downstream of the Amu Darya River, Uzbekistan., Tropentag, October 5 - 7, 2011 in Bonn, Germany.
  • Fritsch, S., Conrad, C., Manschadi, A., Machwitz, M., Rücker, G. und Dech, S. (2011) Estimating regional crop yield at field scale using multitemporal RapidEye data, 3rd Remote Sensing Symposium (3rd RSS), September 8, Wageningen, Netherlands.
  • Löw, F., Michel, U., Conrad, C. und Dech, S. (2011) Development of a satellite-based multi-scale land use classification system for land and water management in Uzbekistan and Kazakhstan. In Proceedings of SPIE, Prague, Czech Republic.

2010

  • Fritsch, S., Conrad, C. und Dech, S. W. (2010) A MODIS-based approach for crop yield prediction in irrigated areas of Central Asia using light-use efficiency modeling. In Proceedings of the ESA Living Planet Symposium 2010, pp 1-7, ESA Living Planet Symposium. Bergen, Norway.
  • Ehammer, A., Fritsch, S., Conrad, C. und Dech, S. W. (2010) Statistical derivation of fPAR and LAI for irrigated cotton and rice in arid Uzbekistan by combining multi-temporal RapidEye data and ground measurements. In Remote Sensing for Agriculture, Ecosystems, and Hydrology XII, pp 1-10, SPIE remote sensing symposium 2010, 20. - 23. September, Toulouse.
  • Machwitz, M., Bloethe, J., Klein, D., Conrad, C. und Dech, S. (2010) Mapping of large irrigated areas in Central Asia using MODIS time series. In Remote Sensing for Agriculture, Ecosystems, and Hydrology XII, SPIE remote sensing symposium 2010, 20. - 23. September, Toulouse.
  • Conrad, C., Goessl, A., Lex, S., Metz, A., Esch, T., Konrad, C., Goettlicher, G. und Dech, S. (2010) Mapping crop distribution in administrative districts of southwest Germany using multi-sensor remote sensing data. In Proceedings of SPIE, Toulouse, France.
  • Asam, S., Klein, D., Geßner, U., Conrad, C., Beierkuhnlein, C. und Dech, S. (2010) Ableitung des Vegetationsbedeckungsgrades aus multiskaligen Fernerkundungsdaten für hydrologische Modellierung in Zentralasien. In Symposium und Fachmesse für Angewandte GeoInformatik (AGIT) 2010, Salzburg, Austria.

2009

  • Schorcht, G., Conrad, C., Dech, S., Lamers, J., Rücker, G. und Fritsch, S. (2009) Field based FAO-56 dual crop coefficient method for water demand estimations using remote sensing and geodata management approaches. In Proceedings of the GISCA 2009 - GIScience for Environmental and Emergency Management in Central Asia, Bishkek, Kyrgyzstan.
  • Geßner, U., Klein, D., Conrad, C., Schmidt, M. und Dech, S. (2009) Towards an automated estimation of vegetation cover fractions on multiple scales: Examples of Eastern and Southern Africa. In 33rd International Symposium on Remote Sensing of Environment, Stresa, Italy.
  • Conrad, C., Falk, U., Hendricks, J. und Dech, S. (2009) Modelling surface energy fluxes based on multi-temporal remote sensing data at different scales. In 33rd International Symposium on Remote Sensing of Environment, Stresa, Italy.
  • Colditz, R. R., Cord, A., Conrad, C., Mora, F., Maeda, P. und Ressl, R. (2009) Analyzing Phenological Characteristics of Mexico with MODIS Time Series Products. In Fifth international Workshop on the Analysis of Multitemporal Remote Sensing Images (MultiTemp), Mystic, Connecticut, USA.
  • Machwitz, M., Falk, U., Richters, J., Conrad, C. und Dech, S. (2009) Modeling the carbon budget at regional scale in West Africa using 250 m MODIS data and ground observations. In 33rd International Symposium on Remote Sensing of Environment, Stresa, Italy.
  • Colditz, R. R., Conrad, C., Wehrmann, T., Schmidt, M. und Dech, S. (2009) Analysis of the Quality of Collection 4 and 5 Vegetation Index Time Series from MODIS. In Quality Aspects in Spatial Data Mining (Stein, A., Shi, W., and Bijker, W., Eds.), CRC Press - Taylor & Francis Group, London, United Kingdom.
  • Ruecker, G., Wehrmann, T., Schettler, I., Conrad, C., Landmann, T., Klein, D., Fritsch, S., Schorcht, G., Mund, J. P., Kuenzer, C., Keil, M., Mehl, H. und Dech, S. (2009) Integration of remote sensing products in regional information systems to support decision making in land and water management in Central Asia. In Proceedings of the Third Central Asia GIS Conference - GISCA '09 (Bishkek).
  • Falk, U., Hendrickx, J. M., Conrad, C., Kübert, C. und Vlek, P. L. G. (2009) Scintillometry, Eddy-covariance and Remote Sensing for Evapotranspiration Mapping in West-Africa. In Proceedings of 33rd International Symposium on Remote Sensing of Environment (ISRSE), May 4 – May 8 2009, Stresa, Italy.

2008

  • Conrad, C., Dech, S., Lamers, J., Martius, C. und Ruecker, G. (2008) A remote sensing based monitoring concept for irrigation systems in Central Asia. In Geophysical Research Abstracts, EGU General Assembly 2008, 13.-18. April 2008, Vienna, Austria.
  • Kübert, C., Conrad, C., Falk, U. und Hendrickx, J. (2008) Assessing the impact of atmospheric corrections on modeling surface energy balance fluxes with SEBAL. Global Change and Water Resources in West Africa, The German-African GLOWA Projects. International Conference, 25. - 28. August 2008, Ouagadougou, Burkina Faso.
  • Esch, T., Conrad, C., Schorcht, G., Thiel, M., Wehrmann, T. und Dech, S. (2008) Model-based estimation of impervious surface by application of support vector machines. In Proceedings of the International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (ISPRS), Part B8, Commission VIII, Beijing, China.
  • Fritsch, S., Conrad, C., Rücker, G. und Dech, S. (2008) Objektbasierte Klassifikation der agrarischen Landnutzung im Gebiet Khorezm (Usbekistan). In Symposium und Fachmesse für Angewandte GeoInformatik (AGIT) 2008, Salzburg, Austria.
  • Geßner, U., Conrad, C., Hüttich, C., Keil, M., Schmidt, M., Schramm, M. und Dech, S. (2008) A Multi-Scale Approach for retrieving proportional Cover of Life Forms. In Proceedings of the 2008 IEEE International Geoscience and Remote Sensing Symposium, Boston, Massachusetts, USA.
  • Machwitz, M., Landmann, T., Cord, A., Conrad, C. und Dech, S. (2008) Land cover analysis on sub-continental scale: FAO LCCS standard with well-defined 250 meter MODIS satellite observations in West Africa. In Proceedings of the 2008 IEEE International Geoscience and Remote Sensing Symposium, Boston, Massachusetts, USA.

2007

  • Eshchanov,  R., Conrad, C. und Lamers, J. P. A. (2007) Using remote sensing to  monitor the cotton growth in the Khorezm Region. In Proceedings of the International Conference by Uzbekistan Cotton Research Institute, pp 213-213, International Conference by Uzbekistan Cotton Research Institute, 27.-28. Aug. 2007, Tashkent, Uzbekistan.
  • Conrad,  C., Dech, S., Hafeez, M., Lamers, J. und Tischbein, B. (2007) Remote  Sensing based hydrological modeling for irrigation performance  assessment in Central Asia. In Proceedings of the MODISM 2007, MODISM 2007, 10.-13. Dez. 2007, Christchurch, New Zealand.
  • Colditz,  R. R., Conrad, C., Wehrmann, T., Schmidt, M. und Dech, S. (2007)  Comparison of collection 4 and 5 MODIS time series. In ISPRS Spatial Data Quality Symposium, Enschede, The Netherlands.
  • Colditz,  R. R., Geßner, U., Conrad, C., van Zyl, D., Malherbe, J., Newby, T.,  Landmann, T., Schmidt, M. und Dech, S. (2007) Dynamics of MODIS time  series for ecological applications in southern Africa. In Fourth international Workshop on the Analysis of Multitemporal Remote Sensing Images (MultiTemp), Leuven, Belgium.
  • Conrad,  C., Colditz, R. R., Dech, S. und Vlek, P. (2007) Combining temporal  segmentation and classification trees for time series classification. In  Fourth international Workshop on the Analysis of Multitemporal Remote Sensing Images (MultiTemp), Leuven, Belgium.
  • Ruecker,  G. R., Shi, Z., Mueller, M., Conrad, C., Ibragimov, N., Lamers, J. P.  A., Martius, C., Strunz, G. und Dech, S. (2007) Regional scale  estimation of cotton yield in Uzbekistan by integrating remote sensing  and field data info into an agrometeorological model. In Proceedings of the International Conference by Uzbekistan Cotton Research Institute, pp 213-220, International Conference by Uzbekistan Cotton Research Institute, 27.-28. Aug. 2007, Tashkent, Uzbekistan.

2006

  • Colditz, R. R., Conrad, C., Schmidt, M., Schramm, M., Schmidt, M. und Dech, S. (2006) Mapping regions of high temporal variability in Africa. In ISPRS mid-term symposium Remote sensing: from pixels to processes, Enschede, The Netherlands.
  • Colditz, R. R., Conrad, C., Wehrmann, T., Schmidt, M. und Dech, S. (2006) Generation and assessment of MODIS time series using quality information. In Proceedings of the 2006 IEEE International Geoscience and Remote Sensing Symposium, Denver, Colorado, USA.

2005

  • Colditz, R. R., Conrad, C., Rücker, G., Schweitzer, C., Fistric, S., Schmidt, M. und Dech, S. (2005) Ableitung von phänologischen Verlaufsmustern aus MODIS Zeitserien und Möglichkeiten der Anwendung. In Symposium und Fachmesse für Angewandte GeoInformatik (AGIT) 2005, Salzburg, Austria.
  • Conrad, C., Colditz, R. R., Petrocchi, A., Rücker, G. R., Dech, S. und Schmidt, M. (2005) Time Series Generator – Ein flexibles Softwaremodul zur Generierung und Bewertung von Zeitserien aus NASA MODIS Datenprodukten. In Symposium und Fachmesse für Angewandte GeoInformatik (AGIT) 2005, Salzburg, Austria.
  • Kranz, O., Rücker, G. R., Conrad, C., Strunz, G. und Dech, S. (2005) GIS und Multi-Criteria-Evaluation zur räumlichen Modellierung geeigneter Aquakultur-Standorte in der Region Khorezm, Usbekistan. In Symposium und Fachmesse für Angewandte GeoInformatik (AGIT) 2005, Salzburg, Austria.
  • Schweitzer, C., Ruecker, G., Conrad, C., Strunz, G. und Bendix, J. (2005) Knowledge-based land use classification combining expert knowledge, GIS, multi-temporal Landsat 7 ETM+ and MODIS time series data in Khorezm, Uzbeskistan. In Göttinger Geographische Abhandlungen, pp 116-123, Göttingen GIS & Remote Sensing Days, 7-8 October 2004.

2004

  • Müller, U., Conrad, C. und Kraus, T. (2004) Analyse der raum-zeitlichen Vegetationsdynamik in Ostafrika unter Verwendung von MODIS-Daten. In Angewandte Geoinformatik 2004. Beitraege zum 16. AGIT-Symposium Salzburg 2004, pp 484-489.
  • Conrad, C., Rücker, G. R., Colditz, R. R., Strunz, G. und Dech, S. (2004) Crop monitoring using multi-temporal MODIS remote sensing data in Khorezm, Uzbekistan. In Congress: The Use of GIS And Simulation Models For Research And Decision Support in Central Asian River Basins, Tashkent, Uzbekistan.
  • Conrad, C., Rücker, G., Schweitzer, C., Dech, S. und Hafeez, M. (2004) Modeling seasonal actual evapotranspiration with remote sensing and GIS in Khorezm region, Uzbekistan. In Proceedings of the 11th SPIE Remote Sensing Europe 2004 - Remote Sensing for Agriculture, Ecosystems, and Hydrology VI, Masplomas, Gran Canaria, Spain.

Publications - Talks

2017

  • Dimov, D., Löw, F., Ibrakhimov, M., Stulina, G. und Conrad, C. (2017) SAR and Optical Time Series for Crop Classification. I IEEE International Geoscience and Remote Sensing Symposium, Forth Worth, Texas, USA.
  • Schönbrodt-Stitt, S., Conrad, C., Dukhovny, V., Morper-Busch, L., Dimov, D., Schorcht, G., Toshpulatov, R. und Zaitov, S. (2017) A new Tool for Monitoring the Irrigated Cropland Use and Water Use Efficiency in the Amudarya River Basin, Use of Non-conventional Agricultural Water Resources to Strengthen Water and Food Security in Transboundary Watersheds of the Amudarya River Basin.
  • Kumar-Babu, D., Kaufmann, C., Schmidt, M., Dahms, T. und Conrad, C. (2017) Semi-Autonomous Remote Sensing Time Series Generation Tool, Spie Digital Library.
  • Kumar-Babu, D., Kaufmann, C., Schmidt, M., Dahms, T. und Conrad, C. (2017) Autonomous Time Series Generation of High Spatial Resolution Images - A Feasibility Study, 68th International Astronautical Congress IAC.
  • Bauer, C., Thiel, M., Löw, F., Klein, D. und Conrad, C. (2017) Spatio-Temporal Patterns of Land Abandonment in the Lower Region of Amu Darya River, Tropentag 2017.
  • Bauer, C., Löw, F., Klein, D. und Conrad, C. (2017) Raum-zeitliche Dynamik der agrarischen Landaufgabe in Bewässerungsgebieten am Amu-Darya, DKG 2017.
  • Dimov, D., Schönbrodt-Stitt, S. und Conrad, C. (2017) MODIS Zeitreihen für den Aufbau eines Landnutzungsinformationssystems. I Deutscher Kongress für Geographie, Tübingen.
  • Dimov, D., Löw, F., Ibrakhimov, M., Schönbrodt-Stitt, S. und Conrad, C. (2017) Feature Extraction and Machine Learning for the Classification of Active Cropland in the Aral Sea Basin. I IEEE International Geoscience and Remote Sensing Symposium, Forth Worth, Texas, USA.
  • Schönbrodt-Stitt, S., Conrad, C., Unger-Shayesteh, K., Gafurov, A. und Gerlitz, L. (2017) Earth Observation within CAWa Project for Water Management in Central Asia, ISTC Scientific Advisory Committee (SAC) Seminar - Water Management in Central Asia and the Caucasus for agricultural, industrial and urban applications.
  • Batsaikhan, A., Asam, S., Klein, D. und Conrad, C. (2017) Monitoring grassland phenology on an Alpine transect using webcams, Virtual Alpine Observatory (VAO) Symposium 2017, Bolzano, Italy.

2016

  • Knöfel, P., Dimov, D., Schönbrodt-Stitt, S. und Conrad, C. (2016) Estimation of actual evapotranspiration to derive irrigation efficiency indicators in the Aral Sea Basin, Central Asia. I AK Fernerkundung, Bonn.
  • Knöfel, P., Spengler, D. und Conrad, C. (2016) Phänologische Strukturierung von zeitlich hochauflösenden Sentinel-2-Datensätzen zur Optimierung von Landnutzungsklassifikationen. I Kickoff-Veranstaltung "EO4GEOSS", Bonn.
  • Knöfel, P., Uslar, J. von und Conrad, C. (2016) Einfluss stratifizierter Probennahme auf die Genauigkeit multitemporaler objektbasierter Landnutzungsklassifikation. I 8. RESA Workshop, Bonn.
  • Batsaikhan, A., Conrad, C., Klein, D. und Asam, S. (2016) Analyzing phenology of grassland along a transect through altitudinal zones using remote sensing. I 5. gemeinsame Jahrestagung der Arbeitskreise „Fernerkundung“ (DGfG) und „Auswertung von Fernerkundungsdaten“ (DGPF), Halle / Saale, Germany.

2015

  • Knöfel, P., Löw, F., Gerstmann, H., Möller, M., Xu, X. und Conrad, C. (2015) Introduction of a multifunctional tool for the evaluation of uncertainty and accuracy in multitemporal object-based land use classification. I SPIE Remote Sensing Conference, Toulouse, France.
  • Knöfel, P. und Conrad, C. (2015) Introduction of a modified soil heat flux approach and its potential for improving remote sensing based surface energy balance. I Third Space for Hydrology Workshop, Frascati, Italy.
  • Knöfel, P. und Conrad, C. (2015) Evaluation of a Modified SEBAL Algorithm to Estimate Actual Evapotranspiration in Cotton Ecosystems of Central Asia using Microwave and Optical Remote Sensing Data. I European Geosciences Union General Assembly 2015, Wien, Austria.
  • Knöfel, P., Löw, F. und Conrad, C. (2015) Object-Based Land Use Classification of Agricultural Land by Coupling Multi-Temporal Spectral Characteristics and Phenological Events in Germany. I European Geosciences Union General Assembly 2015, Wien, Austria.
  • Knöfel, P., Gerstmann, H., Xu, X. und Conrad, C. (2015) Phänologische Strukturierung von zeitlich hochauflösenden Sentinel-2-Datensätzen zur Optimierung von Landnutzungsklassifikationen. I 7. RESA Workshop, Bonn.
  • Gerstmann, H., Knöfel, P., Xu, X., Doktor, D., Möller, M., Thürkow, D., Conrad, C. und Gläßer, C. (2015) Phänologische Strukturierung von zeitlich hochauflösenden Sentinel-2-Datensätzen zur Optimierung von Landnutzungsklassifikationen. I Workshop: "Nutzung der Sentinels und nationalen Erdbeobachtungs-Missionen", Bonn.
  • Kübert, C., Conrad, C., Klein, D. und Dech, S. (2015) Deriving phenological layers for Germany from remote sensing data: spatio-temporal analysis and validity. I Phenology 2015 - Challenges in Phenology, s 72, Kusadasi, Türkei.
  • Lex, S., Dahms, T., Zellner, P., Fritsch, S., Conrad, C. und Schmidt, M. (2015) Generation and evaluation of time series for the derivation of biophysical parameters as an input for a crop model, 7. RESA Workshop 2015 - Nutzung von RapidEye-Daten im Kontext der Synergie mit anderen Sensoren und in Vorbereitung auf künftige Missionen.

2014

  • Zellner, P., Schorcht, G., Borg, E. und Conrad, C. (2014) Towards quantifying stress factors in wheat and maize monitoring, 3. gemeinsamer Workshop der Arbeitskreise: Auswertung von Fernerkundungsdaten der DGPF e.V. und Fernerkundung der DGfG e.V., Berlin.
  • Thiel, M., Gessner, U., Forkuor, G., Knauer, K., Feuerstein, S., Landkammer, S. und Conrad, C. (2014) Comparison of Remote Sensing derived LULC in two rural test sites in the Sudanian Savanna Zone. I AARSE 2014, Johannesburg, South Africa.
  • Baron, D., Golovko, D., Conrad, C. und Roessner, S. (2014) Raumzeitliche Analyse der Schneebedeckung auf der Basis von MODIS Zeitreihendaten - Beitrag zur hydrometeorologischen Charakterisierung eines Gebiets hoher Hangrutschungsgefährdung in Süd-Kirgistan, 3. gemeinsamer Workshop der Arbeitskreise: Auswertung von Fernerkundungsdaten der DGPF e.V. und Fernerkundung der DGfG e.V., Berlin.
  • Rossi, M., Kübert, C. und Conrad, C. (2014) Statistische Analyse von Standortfaktoren zur Erklärung von aus Fernerkundungsdaten abgeleiteten phänologischen Zeitpunkten am Beispiel von Grünlandflächen im Alpenvorland. I 3. gemeinsamer Workshop der Arbeitskreise: Auswertung von Fernerkundungsdaten der DGPF e.V. und Fernerkundung der DGfG e.V., Berlin.

2013

  • Dahms, T., Kübert, C. und Conrad, C. (2013) Ableitung von phänologischen Parametern aus hochauflösenden Fernerkundungsdaten. I Arbeitskreis Fernerkundung 2013, Tübingen, Germany.
  • Conrad, C. (2013) Präsentation der wichtigsten Ergebnisse des IPCC für Zentralasien mit besonderem Fokus auf das Murghab River Basin, Turkmenistan, GIZ-Workshop für Water Manager.
  • Forkuor, G., Conrad, C., Thiel, M. und Zeidler, J. (2013) Improving Crop Area Estimation in West Africa Using Multiresolution Satellite Data. I AfricaGIS - Global Geospatial Conference 2013.

2012

  • Forkuor, G., Landmann, T., Conrad, C. und Dech, S. (2012) Agricultural Land Use Mapping in the Sudanian Savanna of West Africa: Current Status and Future Possibilities. I IEEE International Geoscience and Remote Sensing Symposium, IGARSS.
  • Knoefel, P., Conrad, C., Falk, U. und Dech, S. (2012) Comparative analysis and validation of remotely sensed estimation of actual evapotranspiration in cotton ecosystems of Middle Asia. I Geophysical Research Abstracts, s 9251, EGU General Assembly, 22 - 27 April 2012. Vienna, Austria.
  • Dietz, A., Conrad, C. und Kuenzer, C. (2012) Snow cover variability in Central Asia during the last decade derived from MODIS. I International Geographical Congress. 26.-30.08.2012, Cologne, Germany.
  • Shahabfar, A., Reinwand, M., Conrad, C. und Schorcht, G. (2012) A re-examination of perpendicular drought indices over central and southwest Asia. I SPIE Remote Sensing, 24-27 September 2012, Edinburgh, UK.

2011

  • Conrad, C. (2011) Einsatz von Fernerkundung und GIS zur Unterstützung von nachhaltigem Land- und Wassermanagement. I ESRI Campustag - FH Würzburg-Schweinfurt, 19. Mai 2011, Würzburg, Germany.
  • Conrad, C. (2011) Remote Sensing (RS) and Geographic Information Systems (GIS) as tools to support Irrigation Water Management. I German-Pakistani Research Collaboration, 06. Dez. 2011, Bonn, Germany.
  • Conrad, C. (2011) Satellitenfernerkundung und Bewässerungsmanagement in Zentralasien. I Umweltcluster Bayern. Cluster-Forum International - Zentralasien, Chancen für Umwelttechnologie in Kasachstan, Usbekistan und Aserbaidschan, 17. Nov. 2011, Munich, Germany.
  • Bohovic, R., Klein, D. und Conrad, C. (2011) Phenological patterns for Central Asia. Vegetation dynamics by the means of remote sensing. I 31st EARSeL Symposium and 34th General Assembly, 30. Mai - 02. Jun. 2011, Prague, Czech Republic. (nicht veröffentlicht).

2009

  • Falk, U., Hendrickx, J. M., Conrad, C., Kübert, C. und Vlek, P. L. G. (2009) Scintillometry, Eddy-covariance and Remote Sensing for Evapotranspiration Mapping in West-Africa. I Proceedings of 33rd International Symposium on Remote Sensing of Environment (ISRSE), May 4 – May 8 2009, Stresa, Italy.

2008

  • Conrad, C., Dech, S., Lamers, J., Martius, C. und Ruecker, G. (2008) A remote sensing based monitoring concept for irrigation systems in Central Asia. I Geophysical Research Abstracts, EGU General Assembly 2008, 13.-18. April 2008, Vienna, Austria.
  • Geßner, U., Conrad, C., Hüttich, C., Keil, M., Schmidt, M., Schramm, M. und Dech, S. (2008) A Multi-Scale Approach for retrieving proportional Cover of Life Forms. I Proceedings of the 2008 IEEE International Geoscience and Remote Sensing Symposium, Boston, Massachusetts, USA.

2007

  • Conrad, C., Dech, S., Hafeez, M., Lamers, J. und Tischbein, B. (2007) Remote Sensing based hydrological modeling for irrigation performance assessment in Central Asia. I Proceedings of the MODISM 2007, MODISM 2007, 10.-13. Dez. 2007, Christchurch, New Zealand.
  • Colditz, R. R., Conrad, C., Wehrmann, T., Schmidt, M. und Dech, S. (2007) Comparison of collection 4 and 5 MODIS time series. I ISPRS Spatial Data Quality Symposium, Enschede, The Netherlands.

2005

  • Schweitzer, C., Ruecker, G., Conrad, C., Strunz, G. und Bendix, J. (2005) Knowledge-based land use classification combining expert knowledge, GIS, multi-temporal Landsat 7 ETM+ and MODIS time series data in Khorezm, Uzbeskistan. I Göttinger Geographische Abhandlungen, s 116-123, Göttingen GIS & Remote Sensing Days, 7-8 October 2004.
  • Colditz, R. R., Conrad, C., Rücker, G., Schweitzer, C., Fistric, S., Schmidt, M. und Dech, S. (2005) Ableitung von phänologischen Verlaufsmustern aus MODIS Zeitserien und Möglichkeiten der Anwendung. I Symposium und Fachmesse für Angewandte GeoInformatik (AGIT) 2005, Salzburg, Austria.

2004

  • Müller, U., Conrad, C. und Kraus, T. (2004) Analyse der raum-zeitlichen Vegetationsdynamik in Ostafrika unter Verwendung von MODIS-Daten. I Angewandte Geoinformatik 2004. Beitraege zum 16. AGIT-Symposium Salzburg 2004, s 484-489.
  • Conrad, C., Rücker, G., Schweitzer, C., Dech, S. und Hafeez, M. (2004) Modeling seasonal actual evapotranspiration with remote sensing and GIS in Khorezm region, Uzbekistan. I Proceedings of the 11th SPIE Remote Sensing Europe 2004 - Remote Sensing for Agriculture, Ecosystems, and Hydrology VI, Masplomas, Gran Canaria, Spain.
  • Conrad, C., Rücker, G. R., Colditz, R. R., Strunz, G. und Dech, S. (2004) Crop monitoring using multi-temporal MODIS remote sensing data in Khorezm, Uzbekistan. I Congress: The Use of GIS And Simulation Models For Research And Decision Support in Central Asian River Basins, Tashkent, Uzbekistan.

Publications - Poster presentations

2019

  • Schönbrodt-Stitt, S., Nasta, P., Kurtenbach, M., Ahmadian, N., Romano, N. und Conrad, C. (2019) Framework for a near-surface
    soil sampling survey and C-band SAR-based soil moisture mapping in the Alento terrestrial observatory, South Italy. General Assembly 2019 European Geosciences Union (EGU), EGU2019-87797   .

2018

  • Bauer, C., Löw, F., Klein, D. und Conrad, C. (2018) Detecting spatio-temporal patterns of land abandonment in the lower region of the Amu Darya and Syr Darya Rivers using earth observation data. In .
  • Sultanov, M., Conrad, C., Bauer, C., Thiel, M. und Ibrakhimov, M. (2018) Remote sensing of soil salinity levels in irrigated cotton production systems in the Aral Sea Basin. In .
  • Degtyareva, O., Löw, F., Conrad, C., Thiel, M. und Muratova, N. (2018) Tapping the potential of Landsat archives for the monitoring of irrigated land use development in the lower Syr Darya catchment, Kazakhstan, 1984-2016. In .
  • Ibrakhimov, M., Sultanov, M., Conrad, C. und Lamers, J. (2018) Combining remote sensing and hydrological modeling for assessing the dynamics of soil salinity in the Aral Sea Basin. In .
  • Kenjabaev, S., Degtyareva, O., Sultanov, M., Thiel, M. und Conrad, C. (2018) Monitoring biophysical parameters of irrigated rice production in the lowlands of the Aral Sea Basin from space. In .

2017

  • Dimov, D., Löw, F., Ibrakhimov, M., Schönbrodt-Stitt, S. und Conrad, C. (2017) Feature extraction and machine learning for the classification of active cropland in the Aral Sea Basin, 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS).
  • Morper-Busch, L., Dimov, D., Toshpulatov, R., Schönbrodt-Stitt, S. und Conrad, C. (2017) WUEMoCA Open-source WebGIS zur Wassernutzungseffizienz in Zentralasien, Deutscher Kongress für Geographie 2017.
  • Dimov, D., Morper-Busch, L., Schönbrodt-Stitt, S. und Conrad, C. (2017) From remote sensing to web mapping - integrated geoinformation for land use monitoring in Central Asia, UFZ & DLR: Workshop on Earth Observation Data, Leipzig.

2016

  • Bolkart, M., Dahms, T., Conrad, C., Latchininsky, A. F. und Löw, F. (2016) Mapping and Monitoring Locust Habitats in the Aral Sea Region based on Satellite Earth Observation Data, 12th International Congress of Orthopterology, Ilhéus, Brazil.
  • Knöfel, P., Spengler, D., Conrad, C. und Borg, E. (2016) GLAM.DE - Global Agricultural Monitoring – The German Contribution, Joint workshop for JECAM/Sen2Agri/Sigma projects, Kiew, Urkaine.
  • Dahms, T., Seissiger, S., Borg, E., Hans-Hermann, V., Fichtelmann, B. und Conrad, C. (2016) Important Variables Modelling Biophysical Vegetation Parameters On Winter Wheat, 5 gemeinsame Jahrestagung der Arbeitskreise „Fernerkundung“ (DGfG) und „Auswertung von Fernerkundungsdaten“ (DGPF), Halle (Saale).

2015

  • Dahms, T., Lex, S., Zellner, P., Fritsch, S., Schmidt, M. und Conrad, C. (2015) Techs4Times - innovative techniques for the generation and evaluation of Sentinel time series, DLR-SentinelWorkshop - Nutzung der Sentinels und nationalen Erdbeobachtungs-Missionen.
  • Knöfel, P., Löw, F., Möller, M. und Conrad, C. (2015) Evaluation of Uncertainty and Accuracy in Multi-Temporal Object-Based Land Use Classification, 36th International Symposium on Remote Sensing of Environment, Berlin.
  • Bauer, C., Löw, F. und Conrad, C. (2015) Explaining and assessing the spatial and temporal patterns of low productivity arable land and land abandonment - using satellite observation and socioeconomic data of the irrigated lowlands of Central Asia, Modern problems of hydrogeology, engineering geology, geoecology and ways of their solutions, Tashkent, Usbekistan.
  • Bauer, C., Löw, F. und Conrad, C. (2015) Explaining and assessing spatial and temporal patterns of low productivity arable land and land abandonment - using satellite observation and socioeconomi cdata of the irrigated lowlands of Central Asia, AK Fernerkundung, Bonn, Deutschland.
  • Bauer, C., Löw, F. und Conrad, C. (2015) Explaining and assessing the spatial and temporal patterns of low productivity arable land and land abandonment - using satellite observation and socioeconomic data of the irrigated lowlands of Central Asia, Stadt Land Schaf(f)t – Land Schaf(f)t Stadt, Berlin, Deutschland.
  • Löw, F., Bauer, C., Conrad, C., Lamers, J., Dukhovny, V., Stulina, G., Kenjabaev, S., Muratova, N., Ibrakhimov, H. und Salnikov, V. (2015) The LaVaCCA Project, Geography, Culture and Society for Our Future Earth.

2014

  • Knöfel, P., Conrad, C., Falk, U. und Bauer-Marschallinger, B. (2014) Validation of an improved energy balance model to estimate actual evapotranspiration in irrigated cotton ecosystems of Central Asia, Geophysical Research Abstracts Vol.16, EGU2014-10521 , EGU General Assembly, 27. April - 02. May 2014, Vienna, Austria.

2013

  • Knöfel, P., Conrad, C. und Dech, D. (2013) Potential of Remote Sensing Derived Soil Moisture for the Estimation of Actual Evapotranspiration in Cotton Ecosystems of Middle Asia.

2012

  • Kübert, C., Conrad, C., Dahms, T., Klein, D., Metz, A., Stenzel, S. und Dech, S. (2012) Ableitung von phänologischen Zuständen aus multitemporalen Fernerkundungsdaten, Treffen des AK „Fernerkundung“ der DGfG und des AK „Auswertung von Fernerkundungsdaten“ der DGPF, 4.-5.10.2012, Bochum, Germany.
  • Lex, S., Schorcht, G. und Conrad, C. (2012) Ableitung von LAI und FPAR aus in situ Daten und RapidEye Zeitserien für Baumwolle im Ferganatal, Usbekistan, Treffen des AK „Fernerkundung“ der DGfG und des AK „Auswertung von Fernerkundungsdaten“ der DGPF, 4.-5.10.2012, Bochum, Germany.
  • Knoefel, P., Conrad, C., Falk, U. und Dech, S. (2012) Validation of remotely sensed estimation of actual evapotranspiration in cotton ecosystems of Middle Asia.

2011

  • Fritsch, S., Conrad, C., Manschadi, A., Machwitz, M., Rücker, G. und Dech, S. (2011) Estimating regional crop yield at field scale using multitemporal RapidEye data, 3rd Remote Sensing Symposium (3rd RSS), September 8, Wageningen, Netherlands.
  • Dubovyk, O., Khamzina, A., Conrad, C. und Menz, G. (2011) Mapping cropland marginalization in the downstream of the Amu Darya River, Uzbekistan., Tropentag, October 5 - 7, 2011 in Bonn, Germany.
  • Fritsch, S., Machwitz, M., Ehammer, A., Conrad, C. und Dech, S. (2011) Validation of the collection 5 MODIS FPAR product in a heterogeneous agricultural region, AK Fernerkundung, 29-30 September, Würzburg, Germany.
  • Kübert, C., Klein, D., Wegmann, M., Conrad, C. und Dech, S. (2011) Multi-sensor-concepts for the assessment of land surface phenology using remote sensing data., PhenoALP project final meeting, 12.-14.Oct. 2011, Torgnon, Italy.
  • Knoefel, P., Falk, U., Conrad, C. und Dech, S. (2011) Modellierung der tatsächlichen Evapotranspiration in der Bewässerungsregion Khorezm, Usbekistan, AK Fernerkundung, 29-30 September, Würzburg, Germany.

2008

  • Kübert, C., Conrad, C., Falk, U. und Hendrickx, J. (2008) Assessing the impact of atmospheric corrections on modeling surface energy balance fluxes with SEBAL. Global Change and Water Resources in West Africa, The German-African GLOWA Projects. International Conference, 25. - 28. August 2008, Ouagadougou, Burkina Faso.

Publications - Others


2017

  • Conrad, Christopher. Remote sensing and geoanalysis to Support sustainable land and water use in the Aral Sea Basin.: Habilitationsschrift, Universität Würzburg. 2017.

2013

  • Conrad, Christopher. Was ist eigentlich Geographische Fernerkundung? , 2013 Forschung & Lehre, Nr. 20. ISSN 0945-5604.

2011

  • Awan, Usman K., Bernhard Tischbein, Christopher Conrad, Murodjon Sultanov und John P. A. Lamers. Irrigation and drainage systems in Khorezm, Uzbekistan. 2011 ZEF Work Papers for Sustainable Development in Central Asia 12   .
  • Fritsch, Sebastian, Christopher Conrad, Gunther Schorcht und Ahmad M. Manschadi. Calculating crop yields from space. ZUR No. 19. 2011    Science Brief from the ZEF-UNESCO project on Sustainable Management of Land and Water Recources in Khorezm, Uzbekistan.
  • Schorcht, Gunther, Christopher Conrad, Sebastian Fritsch und John P.A. Lamers. Space-support to improve land and water management on the ground. ZUR No. 23. 2011    Science Brief from the ZEF-UNESCO project on Sustainable Management of Land and Water Recources in Khorezm, Uzbekistan.

2010

  • Conrad, Christopher, Gunther Schorcht, Sebastian Fritsch und Julian Zeidler. How satellite images can improve agricultural land and water management. ZUR No. 11. 2010    Science Brief from the ZEF-UNESCO project on Sustainable Management of Land and Water Recources in Khorezm, Uzbekistan.

2008

  • Conrad, Christopher und A. Schierer. Wassernutzung in Zentralasien. Bewässerungsfeldbau im Amu Darja Delta. 2008 Praxis Geographie, Nr. 11. ISSN 0171-5178.

2006

  • Conrad, Christopher. Fernerkundungsbasierte Modellierung und hydrologische Messungen zur Analyse und Bewertung der landwirtschaftlichen Wassernutzung in der Region Khorezm (Usbekistan).: Dissertation. Universität Würzburg   . 2006.
  • Siefker, Ulf, Christopher Conrad und Stefan W. Dech. Kuwait aus dem Weltall - Anwendungsmöglichkeiten von Fernerkundung im Stadtstaat am inneren Golf.: In: Schliephake, K. und Al-Mousa, A.: Die Beziehungen zwischen der Bundesrepublik Deutschland und dem Staat Kuwait - Historische Perspektiven und geographische Analysen mit GIS des Energiezentrums am Oberen Golf. Würzburger Geographische Manuskripte   . 2006 Sonderheft 9.

2005

  • Rücker, Gerd R., Christopher Conrad, René R. Colditz, Günter Strunz und Stefan W. Dech. Remote sensing based mapping and characterization of soil and vegetation quality of potential plantation areas in the desiccated Aral Sea area. 2005 ZEF Work Papers for Sustainable Development in Central Asia 7   .
  • Schweitzer, C., Gerd R. Rücker und Christopher Conrad. Knowledge-based land use classification combining expert knowledge, GIS, multi-temporal Landsat 7 ETM+ and MODIS time series data in Khorezm, Uzbekistan. 2005 Göttinger Geographische Abhandlungen, Nr. 113.

2003

2002

  • Conrad, Christopher. Auswirkungen intensiver Bewässerungswirtschaft in Zentralasien. 2002 Petermanns Geographische Mitteilungen, Nr. 146.

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