Departments

Departments

Résumé of dr. Z. (Zoltán) Vekerdy

Vekerdy

MSc in cartography and hydrology at the Loránd Eötvös University of Sciences (ELTE), Budapest, Hungary.

Doctor's degree: fellowship at the International Institute for Aerospace Survey and Earth Sciences (ITC), The Netherlands, GIS-based hydrological modelling of alluvial regions (Abstract), defended at ELTE (Summa Cum Laude).

Expertise

Key qualifications:

  • hydrology
  • remote sensing
  • geographical information systems
  • cartography

Activities in education

In the last few years, I have been involved in teaching on and the management of the core modules in the WREM programme, which gives the basics in remote sensing and GIS as well as their application in water management. In my view, this module is the key to the success of the students, since the core module provides the fundament for the more advanced studies in the further modules. My involvement in the further modules was more on an irregular basis. Additionally, the supervision of PM final assignments and MSc theses work provided me with almost daily contacts with the students. Some examples of their topics: snowmelt-runoff modelling; modelling of contaminant leaching in soils; imaging spectrometry of water quality; water balance of irrigated regions; etc.

Activities in research

My research interest is focusing on the application of geo-information for the monitoring and management of very dynamic riverine wetlands in arid and semi-arid regions (www.itc.nl/wcc). This includes the modelling of the hydrological system of wetlands, coupling these models to ecological models, and using remote sensing and GIS for the monitoring of the processes.

Activities in capacity development

Period : 2003 - 2004
Country : Iran
Description of mission : Integrated water resources management of the Uromiyeh Basin.
Short project description
Contractor: Partners for Water programme of the Dutch government.
Duties: Project coordination, hydrological modelling, water balance calculation, training.
 
Period : 2000 – 2003
Country : Egypt
Description of mission : Strengthening the regional training capacity of the Hydraulics Institute, establishing a Nile Basin capacity building network for river engineering.
Short project description
Contractor: SAIL, subcontract from IHE.
Duties: Project co-ordination, teaching on training courses (GIS in river engineering; hydrographic surveys), supervision of 'training of trainers' programme.
 
Period : 2000 – 2001
Country : Iran
Description of mission : Development of an Environment and Land Resources Information System (ELRIS) in Iran.
Short project description
Contractor: FAO.
Duties: Project co-ordination, computer software design, hydrological modelling.
 
Period : 1996 – 1999
Country : China
Description of mission : Development of a coal fire monitoring and management system (CoalMan).
Contractor: DGIS, subcontract from EARS Bv.
Duties: Team leader. Computer software (CoalMan) design and programming, manual writing, training in GIS, field measurements.
 
Period : 1998
Country : Mexico
Description of mission : Short course on GIS applications in hydrology.
Bilateral co-operation with the University of Mexico City.
Duties: Lecturing.
 
Period : 1997 – 1998
Country : Italy
Description of mission : Development of a Transboundary Animal Disease Information System (TADInfo).
Contractor: FAO.
Duties: Project co-ordination, including sub-contractors. System design, manual writing, training.
 
Period : 1997 – 1998
Country : The Netherlands and Spain
Description of mission : Development of a multimedia tutorial on 'Remote sensing image and data fusion', versions I & II.
Contractor: WEU Satellite Centre.
Duties: Project co-ordination, including sub-contractors. System design, content development, image processing, animation development.
 
Period : 1997 – 1998
Country : The Netherlands (Angola)
Description of mission : Development of a demonstration for the capabilities of GIS for a humanitarian de-mining database.
Contractor: European Union, DG VIII.
Duties: Project co-ordination. Demonstration software development for humanitarian de-mining activities. Definition of technical system specifications of a GIS to support the humanitarian de-mining activities of the European Union.

Publications

ISI Journal Articles

Abdelrady, A., Timmermans, J., Vekerdy, Z. and Salama, M.S. (2016) Surface energy balance of fresh and saline waters : AquaSEBS. In: Remote Sensing : open access, 8 (2016)7article no. 583, 17 p. Full text | Full text

Mtamba, J., van der Velde, R., Ndomba, P.M., Vekerdy, Z. and Mtalo, F.W. (2015) Use of Radarsat-2 and Landsat TM images for spatial parameterization of Manning's Roughness Coefficient in hydraulic modeling. In: Remote Sensing : open access, 7 (2015)1 pp. 836-864. Full text | Full text

Malik, M.J., van der Velde, R., Vekerdy, Z. and Su, Z. (2014) Improving modeled snow albedo estimates during the spring melt season. In: Journal of geophysical research : D: Atmospheres, 119 (2014)12 pp. 7311-7331. Full text | Full text

Gökmen, M., Vekerdy, Z., Lubczynski, M.W., Timmermans, J., Batelaan, O. and Verhoef, W. (2013) Assessing groundwater storage changes using remote sensing - based evapotranspiration and precipitation at a large semiarid basin scale. In: Journal of hydrometeorology : partly open access, 14 (2013)6 pp. 1733-1753. Full text | Full text

Gökmen, M., Vekerdy, Z., Verhoef, W. and Batelaan, O. (2013) Satellite - based analysis of recent trends in the ecohydrology of a semi - arid region. In: Hydrology and earth system sciences (HESS) : open access, 17 (2013)10 pp. 3779-3794. Full text | Full text

Dente, L., Vekerdy, Z., de Jeu, R. and Su, Z. (2013) Seasonality and autocorrelation of satellite - derived soil moisture products. In: International journal of remote sensing, 34 (2013)9-10 pp. 3231-3247. Full text | Full text

Malik, M.J., van der Velde, R., Vekerdy, Z. and Su, Z. (2012) Assimilation of satellite observed snow albedo in a land surface model. In: Journal of hydrometeorology : partly open access, 13 (2012)3 pp. 1119-1130. Full text | Full text

Móricz, N., Matyas, Cs., Rasztovits, E., Vekerdy, Z. and Gribovszki, Z. (2012) Comparative water balance study of forest and fallow plots. In: iForest biogeosciences and forestry : open access, 5 (2012)1 pp. 188-196. Full text | Full text

Budhiman, S., Salama, M.S., Vekerdy, Z. and Verhoef, W. (2012) Deriving optical properties of Mahakam Delta coastal waters, Indonesia using in situ measurements and ocean color model inversion. In: ISPRS Journal of Photogrammetry and Remote Sensing, 68 (2012) pp. 157-169. Full text | Full text

Gökmen, M., Vekerdy, Z., Verhoef, A., Verhoef, W., Batelaan, O. and van der Tol, C. (2012) Integration of soil moisture in SEBS for improving evapotranspiration estimation under water stress conditions. In: Remote sensing of environment, 121 (2012) pp. 261-274. Full text | Full text

Dente, L., Vekerdy, Z., Wen, J. and Su, Z. (2012) Maqu network for validation of satellite - derived soil moisture products. In: International Journal of Applied Earth Observation and Geoinformation : JAG, 17 (2012) pp. 55-65. Full text | Full text

Jin, X.M., Vekerdy, Z., Zhang, Y.K. and Liu, J.T. (2012) Soil salt content and its relationship with crops and groundwater depth in the Yinchuan Plain, China, using remote sensing. In: Arid Land Research and Management, 26 (2012)3 pp. 227-235. Full text | Full text

Malik, M.J., van der Velde, R., Vekerdy, Z., Su, Z. and ... [et al.] (2011) Semi - empirical approach for estimating broadband albedo of snow. In: Remote sensing of environment, 115 (2011)8 pp. 2086-2095. Full text | Full text

Berlanga-Robles, C.A., Ruiz-Luna, A., Bocco Verdinelli, G.H.R. and Vekerdy, Z. (2011) Spatial analysis of the impact of shrimp culture on the coastal wetlands on the Northern coast of Sinaloa, Mexico. In: Ocean & coastal management, 54(2011)7, pp. 535-543. Full text | Full text

Su, Z., Timmermans, W.J., van der Tol, C., Dost, R.J.J., Bianchi, R., Gómez, J.A., House, A., Hajnsek, I., Menenti, M., Magliulo, V., Esposito, M., Haarbrink, R., Bosveld, F.C., Rothe, R., Baltink, H.K., Vekerdy, Z., Sobrino, J.A., Timmermans, J., van Laake, P.E., Salama, M.S., van der Kwast, H. and ... [et al.] (2009) EAGLE 2006 : multi purpose, multi angle, and multi sensor in situ and airborne campaigns over grassland and forest. In: Hydrology and earth system sciences (HESS) : open access, 13 (2009)6 pp. 833-845. Full text | Full text

Ferwerda, J.G., de Leeuw, J., Atzberger, C.G. and Vekerdy, Z. (2007) Satellite - based monitoring of tropical seagrass vegetation : current techniques and future developments. In: Hydrobiologia, 591(2007)1, pp. 59-71. Full text | Full text

Prakash, A. and Vekerdy, Z. (2004) Design and implementation of a dedicated prototype GIS for coal fire investigations in North China. In: International journal of coal geology, 59 (2004)1-2 pp. 107-119. Full text

Prakash, A., Gens, R. and Vekerdy, Z. (1999) Monitoring coal fires using multi - temporal night time thermal images in a coalfield in north west China. In: International journal of remote sensing, 20 (1999)14 pp. 2883-2888. Full text

Vekerdy, Z. and Meijerink, A.M.J. (1998) Statistical and analytical study of the propagation of flood - induced groundwater rise in an alluvial aquifer. In: Journal of hydrology, 205 (1998)1 pp. 112-125. Full text | Full text

Other Refereed Journal Articles

Kollar, S., Vekerdy, Z. and Markus, B. (2015) Remote sensing analysis of riparian vegetation habitats. In: International journal of geoinformatics : partly open access, 11 (2015)4 pp. 63-67. Full text

Kollar, S., Vekerdy, Z. and Markus, B. (2013) Aerial image classification for the mapping of riparian vegetation habitats. In: Acta Silvatica and Lignaria Hungarica : open access, 9 (2013)1 pp. 119-133. Full text | Full text

Móricz, N., Mátyás, C., Berki, I., Rasztovits, E., Vekerdy, Z. and Gribovszki, Z. (2012) Egy erdő- és parlagetület vízforgalmának összehasonlítása. In: Hidrológiai Közlöny, 92(2012)1, pp. 67-74. Full text

Kollar, S., Vekerdy, Z. and Markus, B. (2011) Forest habitat change dynamics in a riparian wetland. In: Procedia Environmental Sciences : Volume 7 : Spatial Statistics 2011 : Mapping Global Change, Enschede, 23-25 March 2011 / ed. by A. Stein, E. Pebesma and G. Heuvelink. pp. 371-376. Full text | Full text

Hernandez Guzmán, R., Ruiz-Luna, A., Berlanga-Robles, C.A. and Vekerdy, Z. (2010) Evaluation of total runoff for the Rio San Pedro sub - basin, Nayarit, Mexico, assessing their hydrologic response units. In: Journal of spatial hydrology : open access, 9 (2010)2 pp. 72-85. Full text | Full text

van Beek, E.J., Bozorgy, B., Vekerdy, Z. and Meijer, K. (2008) Limits to agricultural growth in the Sitan closed inland delta, Iran. In: Irrigation and drainage systems, 22 (2008)2 pp. 131-143. Full text | Full text

Book Chapters

Kollar, S., Vekerdy, Z. and Markus, B. (2013) The role of geostatistical measures in the classification of riparian vegetation - case study about a Hungarian floodplain. In: Modellierung und Simulation von Ökosystemen : Workshop Kölpinsee 2012 / ed. by N.X. Thinh. Aachen: Shaker Verlag, 2013. ISBN: 978-3-8440-2275-9. pp. 227-236. Full text

Alkema, D., Bijker, W., Sharifi, A., Vekerdy, Z. and Verhoef, W. (2012) Data integration. In: The core of GIScience : a systems - based approach / ed. by V.A. Tolpekin and A. Stein. Enschede: University of Twente Faculty of Geo-Information and Earth Observation (ITC), 2012. ISBN: 978-90-6164-335-7. (ITC Educational Textbook Series; 2012). pp. 373-426.

Vekerdy, Z., Su, Z., Mannaerts, C.M., van Lieshout, A.M. and Maathuis, B.H.P. (2012) Education and capacity building in earth observation for water related applications in emerging economies. In: Proceedings of the IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2012) : Remote sensing for a dynamic earth, 22-27 July 2012, Munich, Germany. Washington, D.C. : IEEE, 2012. ISBN: 978-1-4673-1159-5. pp. 7659-7662. Full text | Full text

Gökmen, M., van der Tol, C., Vekerdy, Z., Verhoef, W. and ... [et al.] (2012) Towards an improved mapping of evapotranspiration in semi - arid regions. In: Remote Sensing and Hydrology, Proceedings of the 2010 Symposium held at Jackson Hole, Wyoming, 27-30 September 2010 / ed. by C.M.U. Neale and M.H. Cosh. Wallingford: IAHS, 2012. ISBN 978-1-907161-27-8. (IAHS Publication 352) pp. 149-153. Full text

Monographs/Edited Books

Koetz, B. (editor) , Vekerdy, Z. (editor) , Menenti, M. (editor) and Fernández-Prieto, D. (editor)  (2015) Earth observation for water resource management in Africa : open access e-book. Basel, MDPI, 2015. ISBN: 978-3-03842-154-2. Full text

PhD theses

Malik, M.J., Su, Z. (promoter) , van der Velde, R. (co-promoter) and Vekerdy, Z. (co-promoter)  (2014) Remote sensing and modelling of snow processes. Enschede, University of Twente Faculty of Geo-Information and Earth Observation (ITC), 2014. ITC Dissertation 254, ISBN: 978-90-365-3751-3. Full text

Gökmen, M., Verhoef, W. (promoter) , Vekerdy, Z. (assistant promoter) and Batelaan, O. (assistant promoter)  (2013) Earth observation for quantifying ecohydrological fluxes & interrelations : a regional case : the Konya Closed Basin, Turkey. Enschede, University of Twente Faculty of Geo-Information and Earth Observation (ITC), 2013. ITC Dissertation 238, ISBN: 978-90-6164-366-1. Full text

Vekerdy, Z., Klinghammer, I. (promoter) and Meijerink, A.M.J. (promoter)  (1996) Geographical information system based hydrological modelling of alluvial regions : using the example of the Kisaföld, Hungary. Enschede, ITC, 1996. ITC Publication 42, ITC Dissertation 35, ISBN: 90-6164-119-5.

Conference Proceedings (full papers)

Miguel, I., Navarro, A., Rolim, J., Catalão, J., Silva, J., Painho, M. and Vekerdy, Z. (2016) Land cover monitoring for water resources management in Angola. In: Proceedings of ESA Living planet symposium 2016, 9-13 May 2106, Prague, Czech Republic. 8 p. Full text

Jin, Xiaomei., Guo, Renhong. and Vekerdy, Z. (2015) Distribution of actual evapotranspiration over Yinchuan Plain, an arid area in China. In: Integrated geo - spatial information technology and its application to resource and environmental management towards GEOSS : proceedings of IGIT 2015, 16-17 January 2015, Székesfehérvár, Hungary / edited by T. Janscó and P. Engler. Sopron: Nyugat-magyarországi Egyetem Kiadó, 2015. ISBN: 978-963-334-211-4. pp. 9-16. Full text

Chen, Yunzhi., Wang, Xiaoqin., Vekerdy, Z., Vatseva, R., Zheng, Gaoqiang. and Zhang, Li. (2015) Monitoring forest dynamics (1988-2010) in Changting county using time series of remote sensing data. In: Integrated geo - spatial information technology and its application to resource and environmental management towards GEOSS : proceedings of IGIT 2015, 16-17 January 2015, Székesfehérvár, Hungary / edited by T. Janscó and P. Engler. Sopron: Nyugat-magyarországi Egyetem Kiadó, 2015. ISBN: 978-963-334-211-4. pp. 123-128. Full text

Mwania, J., van der Velde, R., Vekerdy, Z. and Mtamba, J. (2015) Run off modelling of the Mara River using Satellite Observed Soil Moisture and Rainfall. In: Proceedings of GeoTech Rwanda 2015, 18-20 November 2015, Kigali, Rwanda. 6 p. Full text | Full text

Wang, Xiaoqin., Li, Wenkai., Vekerdy, Z., Chen, Yunzhi. and Vatseva, R. (2015) Wetlands dynamics in Yinchuan Plain, China from 1989 to 2009. In: Integrated geo - spatial information technology and its application to resource and environmental management towards GEOSS : proceedings of IGIT 2015, 16-17 January 2015, Székesfehérvár, Hungary / edited by T. Janscó and O. Engler. Sopron: Nyugat-magyarországi Egyetem Kiadó, 2015. ISBN: 978-963-334-211-4. pp. 47-53. Full text

Su, Z., Ma, Y., van der Velde, R., Dente, L., Wang, L., Timmermans, J., Menenti, M., Sobrino, J., Li, Z.L., Verhoef, W., Jia, L., Wen, J., He, Y., Wan, L., Li, W., Liu, Q.H., Yu, Q., Li, X., Zhong, L., Zeng, Y., Tian, X., Li, L., Qin, C., Timmermans, W.J., van Helvoirt, M.D., van der Tol, C., Salama, M.S. and Vekerdy, Z. (2013) Drought monitoring, prediction and adaptation under climatic changes. In: Proceedings of Dragon 2 final results and Dragon 3 kickoff symposium, 25-29 June 2012, Beijing / ed. by L. Ouwehand. Noordwijk: European Space Agency (ESA), 2013. ISBN: 92-9092-268-1. 13 p. Full text

Kollar, S., Vekerdy, Z. and Markus, B. (2013) Geostatistical characterization of wetland habitats. In: Proceedings of science for sustatinability : international scientific conference for PhD students, University of West Hungary, Györ, March 19-20, 2013 / ed by M. Neményi et al. Sopron: University of West Hungary Press, 2013. ISBN: 978-963-334-103-2. pp.106-111. Full text

Su, Z., Ma, M., Menenti, M., Sobrino, J.A., Li, Z.L., Verhoef, W., Jia, L., Wen, J., He, Y., Wan, L., Hiu, Q.H., Yu, Q., Li, Xin, van der Velde, R., Dente, L., Zhong, L., Zeng, Y., Tian, X., Li, L., Qin, C., Wang, L., van Helvoirt, M.D., Timmermans, W.J., van der Tol, C., Salama, M.S., Vekerdy, Z. and Ucer, M. (2010) Drought monitoring, prediction and adaptation under climatic changes. In: Proceedings of the symposium : Dragon 2 programme mid - term results 2008 - 2010, 17-21 May 2010, Guilin City, China / editor H. Lacoste-Francis. - Noordwijk : European Space Agency (ESA), 2010. - ; 19 cm. ISBN 978-92-9221-248-3. (ESA - SP : special publication, ISSN 1609-042X ; 684) 13 p. Full text

Vekerdy, Z. and Su, Z. (2010) Tiger capacity building facility : growing from projects to professional community + powerpoint. In: ISPRS 2010 : ISPRS mid - term symposium commission VI : cross - border education for global geo - information : ITC, Enschede, the Netherlands, 2-4 June 2010. - [s.l.] : International Society for Photogrammetry and Remote Sensing (ISPRS), 2010. pp. 92-95 + 25 slides. Full text | Full text | Full text

Augustijn, P.W.M., Kooistra, J.F. and Vekerdy, Z. (2008) Cross - fertilization between three different teaching modes for geo - informatics education. In: Sharing good practices : e-learning in surveying, geo - information sciences and land administration, proceedings FIG International Workshop 11-13 June 2008 ITC, Enschede The Netherlands Enschede : Apeldoorn : Fredrikshaven : ITC, Kadaster, FIG, 2008. ISBN 978-90-6164-271-8. pp. 121-132. Full text | Full text

Timmermans, J., van der Tol, C., Weligepolage, K., Vekerdy, Z., Jia, L. and Su, Z. (2007) BRDFs acquired by directional radiative measurements during EALE and AGRISAR. In: Proceedings of the AGRISAR and EAGLE campaigns, final workshop, 15-16 October, 2007. ESA/ESTEC, Noordwijk, The Netherlands. ESA, 2007 (ESA Proceedings WPP-279) 6 p. Full text

Vekerdy, Z., van Laake, P.E., Timmermans, J. and Dost, R.J.J. (2007) Canopy structural modeling based on laser scanning. In: Proceedings of the AGRISAR and EAGLE campaigns, final workshop, 15-16 October, 2007. ESA/ESTEC, Noordwijk, The Netherlands. ESA, 2007 (ESA Proceedings WPP-279) 8 p. Full text

Su, Z., Timmermans, W.J., Dost, R.J.J., Bianchi, R., Gómez, J.A., House, A., Hajnsek, I., Menenti, M., Magliulo, V., Esposito, M., Haarbrink, R., Bosveld, F.C., Vekerdy, Z., Sobrino, J.A., van der Tol, C., van Laake, P.E., Al-Khaier, F. and ... [et al.] (2007) EAGLE 2006 : multi - purpose, multi - angle and multi - sensor in - situ and airborne campaigns over grassland and forest. In: Proceedings of the AGRISAR and EAGLE campaigns, final workshop, 15-16 October, 2007. ESA/ESTEC, Noordwijk, The Netherlands. ESA, 2007 (ESA Proceedings WPP-279) 11 p. Full text

Salama, M.S., Verhoef, W., Monbaliu, J., Vekerdy, Z., Mannaerts, C.M. and Su, Z. (2007) Validation technique for remote sensing products of inland water quality. In: Proceedings of the AGRISAR and EAGLE campaigns, final workshop, 15-16 October, 2007. ESA/ESTEC, Noordwijk, The Netherlands. ESA, 2007 (ESA Proceedings WPP-279) 8 p. Full text

Vekerdy, Z., Price, R., Hoda Soussa and Youssef Ismail Hafez (2004) GIS and modelling cluster in the Nile basin capacity building network for river engineering. In: GI for international river basin management : proceedings of the eco-geowater conference, Budapest University of Technology and Economics, Budapest, June 3-5, 2004. pp. 67-72.

Turdukulov, U.D. and Vekerdy, Z. (2003) Determination of water quality parameters using imaging spectrometry : case study for the Sajó floodplain, Hungary. In: Proceedings of the 3rd EARSeL workshop on imaging spectroscopy, Herrsching, Germany, 13-16 May 2003 / ed. by M. Habermeyer, A. Mülle and S. Holzwarth. EARSeL. pp. 454-463. Full text

Jordan, G., Rukezo, G., Fügedi, U., Carranza, E.J.M., Somody, A., Vekerdy, Z., Szebényi, G. and Lois, L. (2003) Environmental impact of metal mining on catchment drainage in the historic mining area of Recsk - Lahóca mines, Hungary. In: Proceedings of 4th European congress on regional scientific cartography and information systems, Bologna, Italy, 17-20 June 2003. pp. 713-715. Full text

Kardevan, P., Vekerdy, Z., Roth, L., Sommer, S., Kemper, T., Jordan, G., Tamás, J., Pechmann, I., Kovács, E., Hargitai, H. and László, F. (2003) Outline of scientific aims and data processing status of the first Hungarian hyperspectral data acquisition flight campaign, HYSENS 2002 Hungary. In: Proceedings of the 3rd EARSeL workshop on imaging spectroscopy, Herrsching, Germany, 13-16 May 2003 / ed. by M. Habermeyer, A. Mülle and S. Holzwarth. EARSeL. pp. 324-332. Full text

Vekerdy, Z. (2002) PC - based information system for the management and modelling of subsurface coal fires in mining areas COALMAN. In: Deposit and geoenvironmental models for resource exploitation and environmental security : proceedings of the NATO advanced study institute on, Matrahaza, Hungary, 6-19 September 1998. / ed. by A.G. Fabbri, G. Gaal and R.B. McGammon. Dordrecht etc., Kluwer, 2002. (NATO Science Series : 2. Environmental Security ; 80). pp. 409-424.

Vekerdy, Z. and Chung, C.F. (2002) Report of working group II : GIS - RS methods and techniques : a spatial data laboratory network. In: Deposit and geoenvironmental models for resource exploitation and environmental security : proceedings of the NATO advanced study institute on , Matrahaza, Hungary, 6-19 September 1998. / ed. by A.G. Fabbri, G. Gaal and R.B. McGammon. Dordrecht etc., Kluwer, 2002. (NATO Science Series : 2. Environmental Security ; 80). pp. 501-505.

Zhang, J.M., Guan, H.Y., Vekerdy, Z. and Cui, B.L. (1999) Coal fires in Northern China and operationalization of '4S' techniques. In: Proceedings of the 2nd international conference on operationalisation of remote sensing, August 16-20, 1999. Enschede The Netherlands. 6 p.

Vekerdy, Z., Prakash, A. and Gens, R. (1999) Data integration for the study and visualisation of subsurface coal fires : extended summary. In: Proceedings of the 13th International conference on applied geologic remote sensing, Vancouver, British Columbia, Canada, 1-3 March, 1999. II-150 - II-151.

Feng Wang, Vekerdy, Z. and van Genderen, J.L. (1999) Database management and implementation for coal fire detection and monitoring in the Rujigou coalfield, Northwest China. In: Proceedings of the 2nd international conference on operationalisation of remote sensing, August 16-20, 1999. Enschede The Netherlands. 6 p.

Vekerdy, Z., Wang, F., Zhang, J.M. and Prakash, A. (1999) Requirements for the integration of remote sensing and field data in a GIS for the management of fire fighting in coalfields. In: Proceedings of the 2nd international conference on operationalisation of remote sensing, August 16-20, 1999. Enschede The Netherlands. 6 p.

Vekerdy, Z., Gens, R. and Prakash, A. (1999) Use of optical and radar imagery to estimate and monitor the quantity of oil in storage tanks. In: RSS'99: earth observation, from data to information : University of Wales, 8-10 September 1999. pp. 889-896.

Gens, R., Vekerdy, Z. and Pohl, C. (1998) Image and data fusion : concept and implementation of a multimedia tutorial. In: Fusion of earth data, Sophia Antipolis, France, 28-30 January, 1998. pp. 217-222.

Vekerdy, Z., Meijerink, A.M.J. and van Dam, J.C. (1996) GIS based hydrological model of the Kisalföld area, Hungary. In: HydroGIS '96, Vienna, 10 p.

Licskó, B., Morvay, K. and Vekerdy, Z. (1993) Application of remote sensing techniques at VITUKI between 1986 - 1990. In: Remote sensing for monitoring the changing environment of Europe : Proceedings of the 12th EARSeL Symposium, Eger, Hungary 8-11 September, 1992 / ed. by Winkler. Rotterdam : Balkema, 1993. ISBN 9054103116 pp. 211-215.

Vekerdy, Z., Fekete, B. and Koolhoven, W. (1990) Application of GIS and remote sensing technique in the management of a Hungarian flatland reservoir. In: Proceedings international symposium remote sensing and water resources : Enschede, The Netherlands, August 20-24 1990, pp. 815-823.

Scientific and Professional Publications

Dente, L., Vekerdy, Z., Su, Z. and Ucer, M. (2011) Twente soil moisture and soil temperature monitoring network. Enschede, University of Twente Faculty of Geo-Information and Earth Observation (ITC), 2011. ISBN: 978-90-6164-324-1. Full text

Vekerdy, Z. and Mendoza, M.E. (2010) Dinámica del Lago. In: Atlas de la cuenca del Lago de Cuitzeo : analisis de su geografia y entorno socioambiental : national or regional atlas Mexico / editor S. Cram, , L. Galicia, , I. Israde-Alcantara. - [s.l.] : Universidad Nacional Autonoma de Mexico : Universidad Michoacana de San Nicolás de Hidalgo, 2010. - 311 p. ; 30 cm. ISBN 978-607-02-1830-9. pp. 220-224. Full text

Vekerdy, Z. (2006) GIS contributes to the constitution of Iraq : urgent need for information on available water resources. In: GeoInformatics : magazine for surveying, mapping and GIS professionals, 9 (2006)4 pp. 9. Full text

Vekerdy, Z., Dost, R.J.J., Reinink, G. and Partow, H. (editor)  (2006) History of environmental change in the Sistan Basin : based on satellite image analysis: 1976 - 2005. Geneva, Enschede, United Nations Environmental Programme (UNEP), ITC, 2006. Full text | Full text

Meijerink, A.M.J., Gieske, A.S.M. and Vekerdy, Z. (2005) Surface energy balance using satellite data for the water balance of a traditional irrigation - wetland system in SW Iran. In: Irrigation and drainage systems, 19 (2005)1 pp. 89-105. Full text

Hargitai, H., Vekerdy, Z., Turdukulov, U.D. and Kardevan, P. (2004) Képalkotó spektrométeres távérzékelési kísérlet Magyarországon. In: Térinformatika, 12(2004)6, pp. 12-15.

Meijerink, A.M.J. and Vekerdy, Z. (2003) Satellite images for the monitoring of wetlands and assessing their water budgets. In: Geoinformatics for tropical ecosystems / ed. by. P.S. Roy. Asian Association of Remote Sensing. 2003. pp. 513-538.

Vekerdy, Z., ten Katen, A.M. and Veld, H. (2000) Handbook of the coal fire monitoring and management system coalman : development and implementation of a coal fire monitoring and fighting system in China. Enschede, ITC, 2000.

Rosema, A., van Genderen, J.L., Veld, H., Vekerdy, Z., ten Katen, A.M., Prakash, A., and Sharif, M. (1999) Manual of coal fire detection and monitoring : report of the project: Development and implementation of a coal fire monitoring and fighting system in China. Delft, The Netherlands Institute of Applied Geoscience (NITG), 1999. NITG report 99-221-C, ISBN: 90-6743-640-2.

van Genderen, J.L., Gens, R., Vekerdy, Z., Prakash, A., Cornelis, J., Broekaerts, P., Munteanu, A., Sahli, H., Christopoulos, V., Jellema, H.W. and van Veen, B.S. (1998) Fusetutor : a tutorial on remote sensing an data fusion : self learning package on CD-ROM. Enschede ; Brussel, ITC ; Vrije Universiteit Brussel, 1998.

Presentations

Abdelrady, A.R., Timmermans, J. and Vekerdy, Z. (2013) Evaporation over fresh and saline water surfaces : abstract. In: Geophysical Research Abstracts, vol. 15, EGU2013-9265, 2013. EGU General Assembly 2013, 07-12 April, Vienna Austria. 1 p. Full text | Full text

Koetz, B. and Vekerdy, Z. (2013) The first 10 years of TIGER : looking after water in Africa : powerpoint. Presented at: 2nd GMES & Africa workshop : water resources management, 14-15 May 2013, Abuja, Nigeria. 28 slides. Full text | Full text

Salama, M.S., Farag, H. and Vekerdy, Z. (2013) Remote sensing of water quality, demonstrating the capabilities fo Sentinel-2 for the Nile Delta : abstract. Presented at the ESA Living planet symposium 2013, 9-13 September 2013, Edinburgh, Scotland. 1 p. Full text | Full text

Vekerdy, Z. and van Lieshout, A.M. (2013) TIGER capacity building & research activities : powerpoint. Presented at: TIGER 2013 Workshop, 21-22 October 2013, Tunis, Tunisia. 18 slides. Full text | Full text

Mtamba, J., Vekerdy, Z., van der Velde, R. and Mtalo, F.W. (2013) Use of EO data for hydrodynamic modeling of the Mara wetlands : powerpoint. Presented at the ESA Living planet symposium 2013, 9-13 September 2013, Edinburgh, Scotland. 22 slides. Full text

Koetz, B., Fernandez, D., Pallazo, F. and Vekerdy, Z. (2012) 10 years of TIGER : achievements in earth observation for water resource monitoring : abstract + powerpoint. In: AARSE 2012 : 9th AARSE conference of the African Association of Remote Sensing and the Environment : Earth observation and geo - information sciences for environment and development in Africa : Global vision and local action survey : abstracts book : 29 October - 2 November 2012, El Jadida, Morocco. pp. 154-155 + 26 slides. Full text | Full text

Kabika, J., Woldai, T., Vekerdy, Z., Nyambe, I.A. and Phiri, W. (2012) Challenges in using SEBS model in estimating actual evapotranspiration in southern Africa : a case study of Sesheke : powerpoint. Presented at: AARSE 2012 : 9th AARSE conference of the African Association of Remote Sensing and the Environment : Earth observation and geo - information sciences for environment and development in Africa : Global vision and local action survey : 29 October - 2 November 2012, El Jadida, Morocco. 17 slides. Full text

Timmermans, J., Gökmen, M., Eden, U., Abouali, M., Vekerdy, Z. and Su, Z. (2012) Drought monitoring over the Horn of Africa using remotely sensed evapotranspiration, soil moisture and vegetation parameters : abstract. In: Geophysical Research Abstracts, 14(2012)EGU2012-2717. 1 p. EGU General assembly 2012, 22-27 April 2012, Vienna, Austria. 1 p. Full text | Full text

Phiri, W.K., Nyambe, I.A., Kabika, J., Banda, K., Vekerdy, Z. and Woldai, T. (2012) Remote sensing estimation of spatial and temporal variability of actual evapotranspiration over the semi - arid Barotse sub - basin using SEBS algorithm : abstract + powerpoint. In: AARSE 2012 : 9th AARSE conference of the African Association of Remote Sensing and the Environment : Earth observation and geo - information sciences for environment and development in Africa : Global vision and local action survey : abstracts book : 29 October - 2 November 2012, El Jadida, Morocco. pp. 152-153 + 24 slides. Full text | Full text

Dente, L., Vekerdy, Z., Su, Z. and ... [et al.] (2011)  Soil moisture monitoring over the water source region of Yellow River : poster. Presented at the ESA - MOST Dragon 2 symposium, 20-24 June 2011, Prague, Czech Republic. 1 p. Full text

Su, Z., Ma, Y., van der Velde, R., Dente, L., Wang, L., Menenti, M., Sobrino, J., Li, Z.L., Verhoef, W., Jia, L., Wen, J., He, Y., Li, W., Liu, Q., Yu, Q., Li, X., Zhong, L., Zheng, Y., Tian, X., Li, L., Qin, C., Timmermans, W.J., van Helvoirt, M.D., van der Tol, C., Salama, M.S. and Vekerdy, Z. (2011) Drought monitoring, prediction and adaptation under climatic changes : abstract. In: ESA - MOST Dragon 2 symposium, 20-24 June 2011, Prague, Czech Republic. 1 p. Full text | Full text

Su, Z., van der Velde, R., Dente, L., Wang, L., Vekerdy, Z., van Helvoirt, M.D., Ma, Y., Wen, J. and van Oevelen, P. (2010) Quantification of uncertainties in global coarse - resolution soil moisture products using in - situ observations and ASAR : abstract. In: Geophysical Research Abstracts, 12(2010)EGU2010-15096. EGU General assembly, 4-7 May, 2010 Vienna Austria. 1 p. Full text | Full text

Dente, L., Vekerdy, Z., Su, Z. and ... [et al.] (2010) Validation of SMOS soil moisture products over Maqu and Twente : poster. In: SMOS 2010 Cal - Val workshop : Validation and Retrieval Team workshop, 29-30 November 2010, Frascati, Italy. 1 p. Full text | Full text

Vekerdy, Z., Su, Z., van Lieshout, A.M. and Fernández-Prieto, D. (2009) Capacity needs and capacity building to support a water observation system for Africa : powerpoint. Presented at IGARSS 2009 : 2009 IEEE international geoscience and remote sensing sympsosium : Earth observation, origins and applications, 12-17 July, Capetown, 2009, 4 pp. Full text

Dente, L., Vekerdy, Z. and de Jeu, R. (2009) Comparison of soil moisture products obtained from active and passive microwave data : abstract + poster. In: European Geosciences Union General Assemby 19-24 April 2009, Vienna. Austria : Geophysical research abstracts, 11(2009)EGU2009-13040. 1 p. Full text | Full text | Full text

Su, Z., Ma, Y., Menenti, M., Sobrino, J.A., Li, Z.L., Verhoef, W., Jia, L., Wen, J., He, Y., Wan, L., Liu, Q., Yu, Q., Li, Xin, van der Velde, R., Dente, L., Zhong, L., Zeng, Y., Xin Tian, Wang Lichun and Vekerdy, Z. (2009) Drought monitoring, prediction and adaptation under climatic changes : some recent progress : abstract. In: 2009 Dragon 2 symposium : abstract book, Barcelona, Spain, 22-26 June 2009 / ed. by Y.L. Desnos, Li Zengyuan. - Frascati : European Space Agency (ESA), 2009. pp. 93-95. Full text

Dente, L., Vekerdy, Z., Su, Z. and Wen, J. (2009) Maqu and Twente site for validation of SMOS soil moisture products : poster. Presented at the SMOS Cal/Val workshop, Lisbon, Portugal, 11-13 March, 2009. 1 p. Full text

Dente, L., Vekerdy, Z., Su, Z. and Wen, J. (2009) Maqu CN and Twente NL soil moisture monitoring networks : powerpoint. Presented at the International soil moisture working group meeting, Lisbon, Portugal, 10-11 March, 2009. 18 slides. Full text

Timmermans, J., van der Tol, C., Verhoef, W., Vekerdy, Z., van Laake, P.E. and Su, Z. (2008) Intercomparison of SAIL and DART over a pine forest using laserscan derived structural parameters. In: Geophysical research abstracts : EGU general assembly 2008, 10(2008). 2 p. Full text | Full text

Vekerdy, Z. (2008) ITC : a centre for earth observation education. Presented at the Toulouse space show 08, international week on space applications, 22-25 april 2008, Toulouse, France. 3 p. Full text

Dente, L., Vekerdy, Z. and ... [et al.] (2008) Passive and active microwave for soil moisture retrieval : poster. Presented at the 10th Specialist meeting on microwave radiometry and remote sensing of the environment, Florence, Italy, 11-14 March 2008. Full text

Fernandez Prieto, D. and Vekerdy, Z. (2008) TIGER : supporting African efforts towards and African water observation system : abstract. In: AARSE 2008 : programme and abstracts of the Earth observation and geoinformation for governace in Africa conference, 27-30 October 2008, Accra, Ghana. Theme 6. paper no. 22. oral 1 p. Full text

Vekerdy, Z., Su, Z., van Lieshout, A.M. and ... [et al.] (2008) TIGER capacity building facility : phase 1. Lessons learned. Presented at the Toulouse space show 08, international week on space applications, 22-25 april 2008, Toulouse, France. 5 p. Full text

Vekerdy, Z. (2008) Water resources assessment : powerpoint. Presented at Workshop on Environmental Assessment : International Institute for Geo-Information Science and Earth Observation, Enschede, The Netherlands., September 19, 2008. 36 slides. Full text

Nkhoma, J., Banda, K., Nyambe, I. and Vekerdy, Z. (2008) Water resources mapping of the Zambezi catchment by use of ESA's Envisat sensors and ancillary Data : flood extent, soil moisture variation and erosion - sediment characterization in the Luangwa river catchment : abstract. In: AARSE 2008 : programme and abstracts of the Earth observation and geoinformation for governace in Africa conference, 27-30 October 2008, Accra, Ghana. Theme 1. paper no. 223. oral 1 p. Full text

Timmermans, J., van der Tol, C., Weligepolage, K., Jia, L., Vekerdy, Z. and Su, Z. (2007) Optical and thermal directional signatures of typical Dutch vegetation : abstract. Presented at AgriSAR and EAGLE Campaigns Final Workshop, 15-16 October 2007, ESA, ESTEC, Noordwijk. 1 p. Full text

Salama, M.S., Verhoef, W., Monbaliu, J., Vekerdy, Z., Mannaerts, C.M., Su, Z. and Abouali, M. (2007) Technique for validating remote sensing products of water quality : powerpoint. Presented at AgriSAR and EAGLE Campaigns Final Workshop, 15-16 October 2007, ESA, ESTEC, Noordwijk. 29 slides. Full text

de Leeuw, J. and Vekerdy, Z. (2004) Geographic information for wetland conservation and management : powerpoint. In: CAS and ITC research workshop on remote sensing and application, 19-20 November 2004, Beijing, China. - [s.l.] : Institute of Remote Sensing Applications (IRSA) ; Chinese Academy of Sciences (CAS), 2004. 38 sheets. Full text

Vekerdy, Z. (2004) Remote sensing applications in water management : case studies : appetizers for scientific ideas : powerpoint. In: CAS and ITC research workshop on remote sensing and application, 19-20 November 2004, Beijing, China. - [s.l.] : Institute of Remote Sensing Applications (IRSA) ; Chinese Academy of Sciences (CAS), 2004. 34 sheets. Full text

Budhiman, S., Hobma, T.W. and Vekerdy, Z. (2004) Remote sensing for mapping TSM concentration in Mahakam delta : an analytical approach. Presented at 13th OMISAR Workshop on validation and application of satellite data for marine resources conservation, Kuta, Bali, Indonesia, 5-6 October 2004. 14 p. Full text

Meijerink, A.M.J. and Vekerdy, Z. (2003) Environmental hydrological monitoring using satellite data for the management of wetlands in a quaternary environment. In: Proceedings of a one day workshop on deposits and geoenvironmental models for resources exploitation and environmental security, in honour of Prof. Dr. Andrea Fabbri's early retirement from ITC : Enschede, 5 April 2002 / ed. by T. Woldai. Enschede, ITC. 2003 (ITC Publication ; 82) pp. 24-25.

Vekerdy, Z. and Gross, D. (2003) Monitoring of riverine wetland dynamics with MODIS images : abstract. In: EGS - AGU - EUG Joint assembly : Nice, France, 06-11 April 2003 : Geophysical research ABSTRACTS, Vol. 5, 2003. - European Geophysical Society (EGS), 2003. 2 p.