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PD Dr. Dubovyk, Olena

wissenschaftliche Koordinatorin

Forschungsinteressen: Erdbeobachtung und Geoinformationen für Umweltmonitoring und -management:
  • Fernerkundung der Dynamiken der Landoberfläche
  • Fernerkundung  von Landdegradierung sowie Dürremonitoring und -bewertung
  • Nutzen der Erdbeobachtung und von Geoinformationen zur Unterstützung der Politik und internationaler Kooperationen (SDGs, Sendai-Indikatoren,...)
  • Nutzen der Erdbeobachtung und von Geoinformationen zurReduzierung des Katastrophenrisikos
Untersuchungsgebiete:
  • Afrika (Süd- und Ostfrika, Nordafrika
  • Post-Sowjet Zentralasien
  • Mittlerer Osten (Türkei)
  • Europa (Ukraine, Deutschland
Hintergrund:
  • seit 2015: wissenschaftliche Koordinatorin, ZFL
  • 01/2014 - 12/2014: Senior Researcher am ZFL und INRES, Universität Bonn
  • 2013: Promotion, Universität Bonn
  • 04/2010 - 10/2013: Junior Researcher am Zentrum für Entwicklungsforschung (ZEF)
  • 09/2008 - 03/2010: Erasmus Mundus joint M.Sc. Geo-Information Science and Earth Observation for Environmental Modelling and Management an der Universität Twente (Niederlande), Universität Lund (Schweden) und der Universität Southampton (United Kingdom)
  • 2007-2008:  M.Sc. Tourism and Travel Services Management, Kyiv National Taras Shevchenko University
  • 2003-2007 B.Sc. Geography, Kyiv National Taras Shevchenko University
Laufende Projekte:
Abgeschlossene Projekte:
Lehre:
  • Einführung in die Fernerkundung (PhD, MSc, BSc course level)
  • Analyse und Modellierung von Feldfruchökosystemen - Datenprozessierung und Visualisierung (MSc course level)
  • GIS und Fernerkundung für Katastrophenrisikomanagement (MSc, BSc course level)
  • Grundlagen raumbezogener Technologien (MSc course level)
  • Einführung in Geo Information Systems (GIS) für Umweltüberwachung und –management (BSc course level)
  • Seminar Forschungspektrum Geomatik
  • Einführung in die Angewandte Fernerkundung und Geografische Informationssysteme (GIS)
  • Veränderungsanalysen mittels Geografischer Informationssysteme und Fernerkundung (PhD, MSc, Eramsus Mundus, Universität von Bergen)
Weitere Aktivitäten:
  • ISPRS Mitglied
  • EARSel Mitglied
  • GEO Mitglied
Publikationen:

Peer reviewed

  • Dubovyk, O., 2017. The role of Remote Sensing in land degradation assessments: opportunities and challenges. European Journal of Remote Sensing, 50, 601-613.
  • 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.
  • Santos, F., Dubovyk, O., Menz, G., 2017. Monitoring Forest Dynamics in the Andean Amazon: The Applicability of Breakpoint Detection Methods Using Landsat Time-Series and Genetic Algorithms. Remote Sensing 9(1), 68.
  • Basukala, A. K., Oldenburg, C., Schellberg, J., Sultanov, M., Dubovyk, O. 2017. Towards improved land use mapping of irrigated croplands: performance assessment of different image classification algorithms and approaches. European Journal of Remote Sensing, 50(1), 187-201.
  • Liu, D., Cao, C., Dubovyk, O., Tian, R., Chen, W., Zhuang, Q., Zhao, Y., Menz, G., in press. Using fuzzy analytic hierarchy process for spatio-temporal analysis of eco-environmental vulnerability change during 1990–2010 in Sanjiangyuan region, China. Ecological Indicators, 73, 612-625.
  • Parplies, A., Dubovyk, O., Tewes, A., Mund, J.-P., Schellberg, J., 2016. Phenomapping of rangelands in South Africa using time series of RapidEye data. International Journal of Applied Earth Observation and Geoinformation 53, 90-102.
  • Ghazaryan, G., Dubovyk, O., Kussul, N., Menz, G., 2016. Towards an Improved Environmental Understanding of Land Surface Dynamics in Ukraine Based on Multi-Source Remote Sensing Time-Series Datasets from 1982 to 2013. Remote Sensing 8, 617.
  • Dubovyk, O., Menz, G., Khamzina, A., 2016. Land suitability assessment for afforestation with Elaeagnus Angustifolia L. in degraded agricultural areas of the lower Amu Darya river basin. Land Degradation & Development 27, 1831–1839.
  • Dubovyk, O., Landmann, T., Dietz, A., Menz, G., 2016. Quantifying the Impacts of Environmental Factors on Vegetation Dynamics over Climatic and Management Gradients of Central Asia. Remote Sensing 8, 600.
  • Dubovyk, O., Menz, G., Lee, A., Schellberg, J., Thonfeld, F., and Khamzina, A.: ‘SPOT-Based Sub-Field Level Monitoring of Vegetation Cover Dynamics: A Case of Irrigated Croplands’, Remote Sensing, 2015, 7, (6), pp. 6763-6783
  • Tewes, A., Frank Thonfeld, F., Schmidt , M., Oomen, R.J., Zhu, X., Dubovyk, O., Menz, G., and Schellberg, J.: ‘Using RapidEye and MODIS data fusion to monitor vegetation dynamics in semi-arid rangelands in South Africa ’, Rempte Sensing, 2015, 7, (6), pp. 6510-6534
  • Dubovyk, O., Landmann, T., Erasmus, B.F.N., Tewes, A., Schellberg, J., 2015. Monitoring vegetation dynamics with medium resolution MODIS-EVI time series at sub-regional scale in southern Africa. International Journal of Applied Earth Observation and Geoinformation 38, 175-183, http://dx.doi.org/10.1016/j.jag.2015.01.002
  • Tüshaus, J., Dubovyk, O., Khamzina, A., Menz, G., 2014. Comparison of Medium Spatial Resolution ENVISAT-MERIS and Terra-MODIS Time Series for Vegetation Decline Analysis: A Case Study in Central Asia. Remote Sensing 6:5238-5256.  doi:10.3390/rs6065238
  • Landmann, T., Dubovyk, O., 2014. Spatial analysis of human-induced vegetation productivity decline over eastern Africa using a decade (2001–2011) of medium resolution MODIS time-series data. International Journal of Applied Earth Observation and Geoinformation 33:76-82. http://dx.doi.org/10.1016/j.jag.2014.04.020
  • Conrad, C., S. Dech, O. Dubovyk, S. Fritsch, D. Klein, F. Löw, G. Schorcht & J. Zeidler, 2014. Derivation of temporal windows for accurate crop discrimination in heterogeneous croplands of Uzbekistan using multitemporal RapidEye images. Computers and Electronics in Agriculture 103:63-74. http://dx.doi.org/10.1016/j.compag.2014.02.003.
  • Dubovyk O., G. Menz, C. Conrad, F. Thonfeld and A. Khamzina. 2013. Object-based identification of vegetation cover decline in irrigated agro-ecosystems in Uzbekistan. Quaternary International, 311, 163-174. http://dx.doi.org/10.1016/j.quaint.2013.07.043.
  • Dubovyk O, Menz G, Conrad C., Lamers, J., Lee, A., Khamzina, A.. 2013. Spatial targeting of land rehabilitation: a relational analysis of cropland productivity decline in arid Uzbekistan. Erdkunde, 67(2):167-181. doi: 10.3112/erdkunde.2013.02.05.
  • Dubovyk O., Menz G., Conrad C., Kan E., Machwitz M., and Khamzina A. 2013. Spatio-temporal analyses of cropland degradation in the irrigated lowlands of Uzbekistan using remote sensing and logistic regression modeling. Environmental Monitoring and Assessment, 185 (6): 4775-4790. http://dx.doi.org/10.1007/s10661-012-2904-6.
  • Dubovyk O., T. Schachtsiek, A. Khamzina, G. Menz. 2012. Exploring the biophysical potential of dryland afforestation on degraded lands in the downstream of the Amu Darya River, Uzbekistan. Earth Bioresources and Life Quality, 1(1).
  • Dubovyk, O., Sliuzas, R., and Flacke, J. 2011. Spatio-temporal modelling of informal settlements development in Sancaktepe district, Istanbul, Turkey. ISPRS Journal of Photogrammetry and Remote Sensing, 66(2): 235-246. dx.doi.org/10.1016/j.isprsjprs.2010.10.002.
 

Proceedings

  • Dubovyk, O., Landmann, T., Erasmus, B., Thonfeld, F., Schellberg, J., Menz, G., 2015. Observing vegetation dynamics at medium spatial scale: Lessons from Africa and Asia. In: Proc. IEEE International Geoscience and Remote Sensing Symposium, 27-31 July 2015, Milan.
  • Thonfeld, F., Schmidt, M., Dubovyk, O., Menz, G., 2015. On the relevance of radiometric normalization of dense Landsat time series for forest monitoring. In: Proc. IEEE International Geoscience and Remote Sensing Symposium, 27-31 July 2015, Milan.
  • Landmann, T. & Dubovyk, O. 2013. Mapping vegetation productivity dynamics and degradation trends over East Africa using a decade of medium Resolution MODIS time-series data.. IEEE InternationalGeoscience and Remote Sensing Symposium (IGARSS), 21-26 July 2013, pp. 1801-1804., dx.doi.org/10.1109/igarss.2013.6723149.
  • Dubovyk O., Menz, G., and Khamzina, A. 2012. Trend analysis of MODIS time-series using different vegetation indices for monitoring of cropland degradation and abandonment in Central Asia. IGARSS 2012 – IEEE International Geoscience and Remote Sensing Symposium: Remote Sensing for a Dynamic Earth. July 22-27, 2012 (Munich)., dx.doi.org/10.1109/igarss.2012.6352089.
  • Dubovyk, O., Menz, G., Conrad, C., and Khamzina, A. 2012. Object-based cropland degradation identification: a case in Uzbekistan. In: Proc. SPIE International Symposium on Remote Sensing, September 24-27, 2012 (Edinburgh)., dx.doi.org/10.1117/12.974647.
  • Dubovyk, O., Tüshaus, J., Menz, G., and Khamzina, A.. 2012. Monitoring vegetation trends with the MERIS time series in arid irrigated landscapes of Central Asia. In: Proc. The 3rd MERIS/(A) ATSR&OLCI / SLSTR Preparatory Workshop, October 15-19 2012 (ESA-ESRIN, Frascati).
  • Dubovyk, O., Sliuzas, R., and Flacke, J. 2010. Spatio - temporal analysis of informal settlements development : a case study in Istanbul, Turkey. In: Proc. EARSeL Joint SIG Workshop: Urban - 3D - Radar - Thermal Remote Sensing and Developing Countries, 22-24 September 2010 (EARSel, Ghent) , 11 pp.
 
Book Chapters 

  • Aw-Hassan, A., Korol, V., Nishanov, N., Djanibekov, U., Dubovyk, O., & Mirzabaev, A. (2016). Economics of Land Degradation and Improvement in Uzbekistan. In E. Nkonya, A. Mirzabaev & J. von Braun (Eds.), Economics of Land Degradation and Improvement – A Global Assessment for Sustainable Development (pp. 651-682): Springer International Publishing.
  • Mirzabaev, A., Goedecke, J., Dubovyk, O., Djanibekov, U., Le, Q., & Aw-Hassan, A. (2016). Economics of Land Degradation in Central Asia. In E. Nkonya, A. Mirzabaev & J. von Braun (Eds.), Economics of Land Degradation and Improvement – A Global Assessment for Sustainable Development (pp. 261-290): Springer International Publishing.
 

PhD Thesis

Dubovyk, Olena. 2013. Multi-scale targeting of land degradation in northern Uzbekistan using satellite remote sensing. PhD thesis. University of Bonn, Germany.

Msc Thesis

Dubovyk, O. 2010. Spatio-temporal analysis of informal settlements development. A case study of Istanbul, Turkey. Ms.c. thesis. Enschede: University of Twente, pp. 82.

 

 

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