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Steffen Fritz

Deputy Program Director, ESM (Ecosystem Services and Management Program), Group Leader, EOS (Earth Observation Systems), IIASA

How I work with Harvest

Dr. Fritz's areas of expertise related to Harvest include citizen science, earth observation, crowdsourcing, land-use and land cover, food security, global and regional vegetation monitoring and crop yield and crop acreage estimations of agricultural crops, serious games, volunteered geographical information, and wild land mapping. Dr. Fritz has substantial experience in involving citizens in research activities through citizen science projects and campaigns using the Geo-Wiki platform, as well as other (mainly FP7 and H2020 funded) citizen science initiatives, e.g. LandSense, WeObserve, CrowdLand, etc.


Dr. Steffen Fritz is Deputy Program Director of the Ecosystem Services and Management (ESM) Program and the Leader of the Earth Observation Systems (EOS) Group at the International Institute for Applied Systems Analysis (IIASA). He joined IIASA in 2007, and since then he has become the initiator and driving force behind the, a global land cover validation tool that aims to investigate and reduce the uncertainties in global land cover data using crowdsourcing. Dr. Fritz is the Principal Investigator of the ERC-funded ''CrowdLand'' and H2020 funded LandSense and WeObserve projects, as well as many others. Dr. Fritz studied physics and geography at the University of Tubingen, Germany and in 1996, he received a Master of Science degree in Geographical Information for Development from the University of Durham, UK. Thereafter, he was awarded a scholarship by the School of Geography at the University of Leeds, UK, where he completed his PhD on how to map perceptions of wild land. He then undertook a Postdoctoral Fellowship at the Joint Research Centre (JRC) in Italy in 2002. During this time, he worked on land cover with a primary task to mosaic, harmonize and produce the Global Land Cover 2000 database. His second post at the JRC was on the development of new methods for crop area estimations.