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Thonfeld, Frank

ZFL coordination

Position: ZFL coordinator, PhD student, GIUB
Research interests: Change Detection, High-Resolution Remote Sensing, SAR-Optical Synergy, Time Series Analysis, Landsat, Forest Monitoring
Study areas: Europe (Germany), North America (Canada), East Africa (Kenya)
Background:
  • since 10/2011 ZFL executive
  • since 11/2008 PhD-Student, ZFL/University of Bonn
  • 04/2008-07.2008 Research Assistant at Friedrich-Schiller-University Jena. ENVILAND 2 - Radar and Optical Satellite Data for ENVIronment and LAND Use Applications - proposal
  • 2008 Diploma in Geography (master equivalent)
  • 2001-2008 Studies of Geography at Friedrich-Schiller-University Jena (Minor Subjects Ecology, Geology)
Teaching: Courses for B.Sc. and M.Sc. in:
  • radar remote sensing
  • time series analysis
  • landscape metrics
  • change detection
  • remote sensing basics (teaching tutors)
Current projects:
Closed projects: GlobWetland II , ENVILAND-2
Other activities:  DGPF member
Recent publications: Peer-Reviewed:
  • Ackermann, N., F. Becker, C. Berger, M. Bindel, J. Eberle, I. Elbertzhagen, K.-H. Franke, A. Hecheltjen, T. Koch, T. Kubertschak, G. Menz, T. Riedel, C. Schmullius, M. Schwarz, F. Thonfeld, K. Weise, B. Wolf (2012): ENVILAND 2 – Von multisensoralen Satellitenbildern zu operationellen Produkten. In: Borg, E., H. Daedelow & R. Johnson (Hrsg.): RapidEye Science Archive (RESA) „Vom Algorithmus zum Produkt“. Tagungsband zum 4. RESA Workshop, Neustrelitz, 21.-22. März 2012. GITO Verlag, Berlin, ISBN-13: 9783942183611, S. 123-149.
  • Feilhauer, H., F. Thonfeld, U. Faude, K. S. He, D. Rocchini & S. Schmidtlein (2013): Assessing floristic composition with multispectral sensors—A comparison based on monotemporal and multiseasonal field spectra. International Journal of Applied Earth Observation and Geoinformation 21, 218-229.

Proceedings:
  • Thonfeld, F. & G. Menz (2013): Entwicklung eines robusten Veränderungsdetektionsverfahrens für räumlich hoch auflösende Satellitendaten. In: Seyfert, E. (Ed.): Publikationen der Deutschen Gesellschaft für Photogrammetrie, Fernerkundung und Geoinformation e. V., Band 22. 33. Wissenschaftlich-Technische Jahrestagung der DGPF, 27.2.-1.3.2013, Freiburg i. B., Drei-Länder-Tagung D-A-CH, 194-201. ISSN 0942-2870.
  • Feilhauer, H., F. Thonfeld, U. Faude, K. S. He, D. Rocchini & S. Schmidtlein (2012): Important characteristics of multispectral data for an assessment of floristic variation. IEEE International Geoscience and Remote Sensing Symposium IGARSS 2012, 22-27 July 2012, Munich, Germany, 36-39.
  • Thonfeld, F. & G. Menz (2011): Coherence and multitemporal intensity metrics of high resolution SAR images for urban change detection. Proceedings of the 4th TerraSAR-X Science Team Meeting, 14-16 February 2011, Oberpfaffenhofen, Germany.
  • Thonfeld, F., A. Hecheltjen, M. Braun & G. Menz (2010): From algorithms to processing chains: A review of land cover and land use change detection methodologies. Proceedings of the ESA Living Planet Symposium 2010, 28 June - 02 July 2010, Bergen, Norway, ESA SP-686 (CD-Rom).
  • Hecheltjen, A., B. Waske, F. Thonfeld, M. Braun & G. Menz (2010): Support Vector Machines for multitemporal and multisensor change detection. Proceedings of the ESA Living Planet Symposium 2010, 28 June - 02 July 2010, Bergen, Norway, ESA SP-686 (CD-Rom).
  • Waske B., M. Braun, F. Thonfeld & I. Elbertzhagen (2010): Classifying multitemporal dual-polarized SAR data from agricultural areas in view of Sentinel-1. Proceedings of the ESA Living Planet Symposium 2010, 28 June - 02 July 2010, Bergen, Norway, ESA SP-686 (CD-Rom).
  • Nielsen, A., A. Hecheltjen, F. Thonfeld, M. Canty (2010): Automatic change detection in RapidEye data using the combined MAD and Kernel MAF methods. IEEE International Geoscience and Remote Sensing Symposium IGARSS 2010, 25-30 July 2010, Honolulu, Hawaii.

Oral presentations:
  • Thonfeld, F. & G. Menz (2013): Entwicklung eines robusten Veränderungsdetektionsverfahrens für räumlich hoch auflösende Satellitendaten. Wissenschaftlich-Technische Jahrestagung der DGPF, 27.2.-1.3.2013, Freiburg i. B., Drei-Länder-Tagung D-A-CH.
  • Thonfeld, F. & H. Feilhauer (2012): Modeling floristic gradients with simulated Sentinel-2 data. Sentinel-2 Preparatory Symposium, ESA-ESRIN, 23-27 April 2012, Frascati, Italy.
  • Thonfeld, F., Feilhauer, H. & G. Menz (2011): Auswirkung des Flächenanteils von Veränderungen bei der Schwellenwertbestimmung zur Unterscheidung von Veränderung und Nicht-Veränderung in Change-Detection-Anwendungen. AK Fernerkundung, 29-30 September 2011, Würzburg.
  • Thonfeld, F. & G. Menz (2011): Coherence and multitemporal intensity metrics of high resolution SAR images for urban change detection. 4th TerraSAR-X Science Team Meeting, 14-16 February 2011, Oberpfaffenhofen, Germany.
  • Thonfeld, F., A. Hecheltjen, M. Braun & G. Menz (2010): A review of change detection methods and their operational implementation for certain applications. 30th EARSeL Symposium "Remote Sensing for Science, Education, and Natural and Cultural Heritage", 31 May - 03 June 2010, Paris, France.

Poster:
  • Thonfeld, F., H. Feilhauer & G. Menz (2012): Simulation of Sentinel-2 images from hyperspectral data. Sentinel-2 Preparatory Symposium, ESA-ESRIN, 23-27 April 2012, Frascati, Italy.
  • Elbertzhagen, I., F. Thonfeld & G. Menz (2012): SVM-based agricultural land use assessment using Sentinel-2 simulation data. Sentinel-2 Preparatory Symposium, ESA-ESRIN, 23-27 April 2012, Frascati, Italy.
  • Thonfeld, F., A. Hecheltjen & G. Menz (2011): Robust change vector analysis (RCVA) - A change detection tool for high spatial resolution optical data. EARSeL Special Interest Group Land Use/Land Cover (SIG LULC) Conference, 31 May - 3 June 2011, Prague, Czech Republic.
  • Hecheltjen, A., F. Thonfeld & G. Menz (2011): Automated labeling of land cover changes. EARSeL Special Interest Group Land Use/Land Cover (SIG LULC) Conference, 31 May - 3 June 2011, Prague, Czech Republic.
  • Thonfeld, F., A. Hecheltjen, M. Braun & G. Menz (2010): From algorithms to processing chains: A review of land cover and land use change detection methodologies. Proceedings of the ESA Living Planet Symposium 2010, 28. June – 02 Jule 2010, Bergen, Norway.
  • Hecheltjen, A., F. Thonfeld, M. Braun & G. Menz (2009): Process chains for change detection: A review. EARSeL Special Interest Group Land Use/Land Cover (SIG LULC) Conference, 25-27 November 2009, Bonn, Germany.
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Frank Thonfeld

Frank

 

Contact:
phone: +49-0228-73-4975
fax: +49-0228-73-6857
frank.thonfeld@uni-bonn.de

 

 Downloads:

 CV (PDF)

Diploma Thesis (PDF)

 Output of an internship in Kenya in the context of sustainable tourism:

 Green Lodge Concept (german) (PDF)

Green Lodge Concept (english) (PDF)

Meteosat

 

 

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