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.




    Dr. Valerie Graw

    Raum: IA 6/61

    Telefon: +49 234-32-19617

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

    Sprechstunde: nach Vereinbarung