Forschung » Geomatik » Mitarbeiter/-innen


Peer Review

  • Graw, V.; J. Schreier & A. Strauch. 2020. Floods in Sudan – Space-based Flood Monitoring to Support Disaster Risk Management. Space4Water Portal. Available via:

  • Muro, J., L. Zurita-Arthos, J. Jara, E. Calderón, R. Resl, A. Rienow & V. Graw. Earth Observation for Settlement Mapping of Amazonian Indigenous Populations to Support SDG7. Resources 2020, 9, 97. DOI: 10.3390/resources9080097
  • Ghazaryan, G., Dubovyk, O., Graw, V., Kussul, N. & J. Schellberg (2020). Local-scale agricultural drought monitoring with satellite-based multi-sensor time-series. GIScience & Remote Sensing. 1-15. 10.1080/15481603.2020.1778332.
  • Ayman Abdel-Hamid, Dubovyk, O., Graw, V. & K. Greve (2020) Assessing the impact of drought stress on grasslands using multi-temporal SAR data of Sentinel-1: a case study in Eastern Cape, South Africa, European Journal of Remote Sensing, DOI: 10.1080/22797254.2020.1762514
  • Graw, V., Ghazaryan, G., Schreier, J., Gonzalez, J., Abdel-Hamid, A., Walz, Y., Dall, K., Post, J., Jordaan, A. & O. Dubovyk (2020). Timing is everything - drought classification for risk assessment. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing.
  • Walz, Y., Min, A., Dall, K., Duguru, M., Villagran de Leon, J-C., Graw, V., Dubovyk, O., Sebesvari, Z., Jordaan, A., Post, J. (2020): Monitoring progress of the Sendai Framework using a geospatial model: The example of people affected by agricultural droughts in Eastern Cape, South Africa; Progress in Disaster Science 5, 100062
  • Santos F, Graw V, Bonilla S (2019) A geographically weighted random forest approach for evaluate forest change drivers in the Northern Ecuadorian Amazon. PLoS ONE 14(12): e0226224.
  • Dubovyk, O., G. Ghazaryan, J. Gonzalez, V. Graw, F. Löw & J. Schreier (2019): Drought hazard in Kazakhstan in 2000-2016: a remote sensing perspective. Environmental Monitoring and Assessment. 191: 510.
  • Graw, V.; Ghazaryan, G.; Dall, K.; Delgado Gómez, A.; Abdel-Hamid, A.; Jordaan, A.; Piroska, R.; Post, J.; Szarzynski, J.; Walz, Y. & O. Dubovyk (2017): Drought Dynamics and Vegetation Productivity in Different Land Management Systems of Eastern Cape, South Africa-A Remote Sensing Perspective. Sustainability 2017, 9, 1728.



  • Graw, V., O. Dubovyk, M. Duguru, P. Heid, G. Ghazaryan, J.C. Villagran de Leon, J. Post, J. Szarzynski, D. Tsegai & Y. Walz (2019): Chapter 9 - Assessment, monitoring, and early warning of droughts: the potential for satellite remote sensing and beyond. In: (eds.): E. Mapedza, D. Tsegai, M. Bruntrup & R Mcleman, Current Directions in Water Scarcity Research, Elsevier, Volume 2, 2019: 115-131, ISSN 2542-7946, ISBN 9780128148204,
  • Kwon, Ho-Young; Nkonya, E.; Johnson, T.; Graw, V.; Kato, E.; Kihiu, E., 2016. Global Estimates of the Impacts of Grassland Degradation on Livestock Productivity from 2001 to 2011. in: Nkonya, E., Mirzabaev, A., von Braun, J. (Eds.), Economics of Land Degradation and Improvement - A Global Assessment for Sustainable Development. Springer International Publishing, pp. 261-290.
  • Banana, A. Y., P. O. Ongugo, W. S. Gombya-Ssembajwe, T. W. Gole, F. Senbeta, J. Namaalwa, E. Luoga, J. Bahati, L. A. Mbwambo, V. Graw & F. W. Gatzweiler (2013): Forest Governance Reforms in Eastern Africa: A Comparative Analysis of Institutional, Livelihood and Forest Sustainability Outcomes. In: F. W. Gatzweiler (ed): Institutional and Livelihood Changes in East African Forest Landscapes. Decentralization and Institutional Changes for Sustainable Forest Management in Uganda, Kenya, Tanzania and Ethiopia. Peter Lang, Frankfurt a.M.
  • Graw, V. & C. Husman (2014): Mapping Marginality Hotspots. In: von Braun, J. & F. Gatzweiler (eds): Marginality. Addressing the Nexus of Poverty, Exclusion and Ecology. Springer, pp. 69-83.


Proceedings/Technical Reports/Policy Reports

  • Reichhuber, A., Gerber, N., Mirzabaev, A., Svoboda, M., López Santos, A., Graw, V., Stefanski, R., Davies, J., Vuković, A., Fernández García, M.A., Fiati, C. & X. Jia (2019): The Land-Drought Nexus: Enhancing the Role of Land-Based Interventions in Drought Mitigation and Risk Management. A Report of the Science-Policy Interface. United Nations Convention to Combat Desertification (UNCCD), Bonn, Germany.
  • Walz, Yvonne & Dall, Karen & Graw, Valerie & Leon, Juan-Carlos & Haas, Susanne & Kussul, Nataliia & Jordaan, Andries. (2019). UNU-EHS Publication Series Policy Report 2018 No. 3 Understanding And Reducing Agricultural Drought Risk: Examples From South Africa And Ukraine UNU-EHS.
  • Walz, Y.; Dall, K.; Graw, V.; Villagran de Leon, J.C.; Haas, S.; Kussul, N. & A. Jordaan (2018): Understanding and reducing agricultural drought risk: Examples from South Africa and Ukraine, Policy Report No. 3.; Bonn: United Nations University - Institute for Environment and Human Security (UNU-EHS).
  • Siebert, S.; Cornish, N.; Döll, P. Dubovyk, O.; Engels, O.; Eyshi-Rezaei, E.; Gerdener, H.; Gonzalez, J.; Graw, V.; Hagenlocher, M.; Herbert, C.; Kusche, J.; Landmann, T.; Meza, I.; Nouri, H.; Popat, E. & D. Rupp (2019): GlobeDrought - towards improved drought risk analysis and projection at global and regional scales. GRoW - Water as a global resource.
  • Ghazaryan, G., Dubovyk, O., Graw, V., & Schellberg, J. (2018, October). Vegetation monitoring with satellite time series: an integrated approach for user-oriented knowledge extraction. In Remote Sensing for Agriculture, Ecosystems, and Hydrology XX (Vol. 10783, p. 107830W). International Society for Optics and Photonics.
  • Graw, V.; Oldenburg, C and O. Dubovyk, 2016. Bush Encroachment Mapping for Africa: Multi-scale analysis with remote sensing and GIS. Discussion Paper Series. Center for Development Research. Bonn, Germany. Further Information:
  • Graw, V.; Smale, M. and G. Menz, 2016. Land Degradation, Tenure and Poverty: A Geospatial Analysis of socio-ecological Systems in Western Kenya. Tegemeo Working Paper Series. Nairobi, Kenya. Further Information:
  • Graw, V. 2013. Mapping hotspots of marginality for area identification. In: Rural 21 - 01/2013. Scientific World: 42-43.
  • Nkonya, E., N. Gerber, P. Baumgartner, J. von Braun, A. De Pinto, V. Graw, E. Kato, J. Kloos and T. Walter. 2011. The economics of desertification, land degradation and drought: toward an integrated global assessment. 196. Further Information:
  • Rienow, A., Graw, V., Heinemann, S., Ortwein, A., Schultz, J., Selg, F., Menz, G. (2017): Interaktiver MINT-Unterricht mit ISS-Videos und Satellitenbildern: Die Atmosphäre im Blick In: Praxis Geogra-phie - Themenheft "Erdbeobachtung mit Satellitenbildern - Fernerkundung im Geographieunter-richt", 10-12.
  • Rienow, A., Schultz, J., Graw, V., Heinemann, S., Ortwein, A., Selg, F., Menz, G. (2016): Die Erde aus dem All betrachten: Interdisziplinäre Lernplattformen zu Geomedien als Dienstleistung für den medien-basierten Unterricht. In: Computer und Unterricht 102, 12-13.
  • Ortwein, A., Graw, V., Heinemann, S., Menz, G., Schultz, J., Selg, F., Rienow, A. (2016): Pushed Beyond the Pixel - Interdisciplinary Earth Observation Education from the ISS in Schools. In: Proceedings of the 67th International Astronautical Congress 2016 26.-30. September in Guadalajara, Mexiko, 1-6.
  • Rienow, A., Graw, V., Heinemann, S., Schultz, J., Selg, F., Menz, G. (2016): Earth Observation from the ISS Columbus Laboratory - an Open Education Approach to Foster Geographical Competences of Pupils in Secondary Schools. In: ESA Living Planet Symposium 2016, 9.-13. Mai in Prag, Tschechien 2016, st7_3.
  • Rienow, A., Graw, V., Heinemann, S., Schultz, J., Selg, F., Menz, G. (2016): Mathematikunterricht aus dem All - interdisziplinäre Lernwerkzeuge für den von Erdbeobachtung im Schulunterricht. In: Dreiländertagung der DGPF, der OVG und der SGPF in Bern, Schweiz - Publikationen der DGPF, Band 25, 2016, 428-435.
  • Rienow, A., Graw, V., Heinemann, S., Schultz, J., Selg, F., Weppler, J., Menz, G. (2015): Experiencing Space by Exploring the Earth - Easy-to-use Image Processing Tools in School Lessons. In: Proceedings of the 66th International Astronautical Congress 2015 12.-16. Oktober in Jerusalem, Israel, 1-7.



  • Nkonya, E., N. Gerber, P. Baumgartner, J. von Braun, A. de Pinto, V. Graw, E. Kato, J. Kloos and T. Walter. 2011. The Economics of Land Degradation. Toward an Integrated Global Assessment. Peter Lang, Frankfurt am Main, Berlin, Bern, Bruxelles, New York, Oxford, Wien, Development Economics and Policy - Volume 66.

    Dr. Valerie Graw

    Raum: IA 6/61

    Telefon: +49 234-32-19617

    E-Mail: valerie.graw(at)rub(dot)de

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