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VHR satellite imagery to support land tenure mapping in Madagascar www. eurosense. com 1 VHR satellite imagery to support land tenure mapping in Madagascar www. eurosense. com 1 ESA EOFI Kick-off meeting – 17/05/2010 Earth Observation for International Financial Institutions Service Trial 3

Results Issues Intended use Questions Land titling benefits Land titling can increase investment in Results Issues Intended use Questions Land titling benefits Land titling can increase investment in land, agricultural productivity, and land values in different ways (assurance, realizability, collataralability) New land tenure guidelines to formalize land tenure through decentralization of land management Actualized PLOF Performed by municipalities ESA EOFI Kick-off meeting – 17/05/2010 Initial PLOF Made available by the administration foncière Land tenure certificate Image base Land tenure title Reserved Route Public domain 2

Results Issues Intended use Questions Initial PLOF guidelines ESA EOFI Kick-off meeting – 17/05/2010 Results Issues Intended use Questions Initial PLOF guidelines ESA EOFI Kick-off meeting – 17/05/2010 Making an "Initial PLOF" in the context of a modernized land tenure office: the preconditions: Ø Provision of an “image base” (orthophoto, digital satellite image). This image database will be used as a visual basis for the delineation of titled land parcels, dependencies in the public domain, and areas with specific statutes. Ø Provision of data on land ownership, alphanumeric or on paper. Ø Capacity building: Ø Territorial delimitation using satellite imagery Land rights formalization has been promoted as a way to encourage agricultural investment and stimulate land markets. Reducing land tenure insecurity is seen as a legitimate role for the state, and often as a cost-effective intervention. 3

Results Issues Intended use Questions AOI PROSPERER Within this project an image base is Results Issues Intended use Questions AOI PROSPERER Within this project an image base is being delivered over 11 municipalities in the Lalangina, Isandra, and Ambalavoa district. Data should facilitate Ambalakely Soatanana Ivoamba Mahatsinjony Androy Soaindrana ESA EOFI Kick-off meeting – 17/05/2010 Andoharanomaitso Alatsinainy Taindambo Fandrandava Iarentsina Firaisantsoa Sahambavy 4

Results Issues Intended use Questions Delivered images ESA EOFI Kick-off meeting – 17/05/2010 23 Results Issues Intended use Questions Delivered images ESA EOFI Kick-off meeting – 17/05/2010 23 Kompsat 2 images received (June 27 th – October 10 th) 5

Results Issues Intended use Questions Image mosaic ESA EOFI Kick-off meeting – 17/05/2010 Images Results Issues Intended use Questions Image mosaic ESA EOFI Kick-off meeting – 17/05/2010 Images orthorectified using Ø ASTER DEM Ø 25 GPS points Ø image RPCs Ø tie points 6

Results Issues Intended use Questions Issues – Reference data Difficult orthorectification due to lack Results Issues Intended use Questions Issues – Reference data Difficult orthorectification due to lack of reference data Ø DEM • Solved by combining SRTM and ASTER DEM • Combined DEM produced (horizontal resolution 30 m) Ø Horizontal reference • Topo received, however very different location then Landsat GLS and Kompsat 2 RPCs • 25 GPS points provided by PROSPERER ESA EOFI Kick-off meeting – 17/05/2010 Ø Processing details • GPS points taken as main reference • Images linked together with tie points in overlap regions Effects: - Limited locational accuracy, however still a huge improvement on what is currently available - Relative accuracy + field measuring is accurate 7

Results Issues Intended use Questions Issues – Kompsat 2 data Slow progress of image Results Issues Intended use Questions Issues – Kompsat 2 data Slow progress of image acquisitions Ø First months Date Images 3 30/07 2 09/09 2 14/09 2 17/09 3 27/09 3 07/10 2 • Non-delivery of last images due to satellite providers’ error 10/10 • Issue solved after 4 weeks (last images received 16/11) 5 • Very low priority by satellite provider • Situation mentioned to ESA Ø After ESA interference • Higher priority given by satellite provider • Quick acquisition of remaining images Ø Last images ESA EOFI Kick-off meeting – 17/05/2010 27/06 Effects: - Big delay of service delivery - Non-visible to end user 8

Results Issues Intended use Questions Issues – Image quality Kompsat 2 image errors Ø Results Issues Intended use Questions Issues – Image quality Kompsat 2 image errors Ø Colour difference in first image track => Ø Error in RPCs • Not feasible to correctly orthorectify image track • Issue solved by automatic image shift Ø Displacement between PAN & XS ESA EOFI Kick-off meeting – 17/05/2010 • Image not validated • Resulted in later miscommunications Effects: - Delay of service delivery - Only colour difference in the east visible to end user 9

Results Issues Intended use Questions Issues – User software ESA EOFI Kick-off meeting – Results Issues Intended use Questions Issues – User software ESA EOFI Kick-off meeting – 17/05/2010 Delivered images Ø Images now delivered as municipal clip Ø Municipalities buffered with 200 m Arc. View 3. 2 limits Ø Can only handle raster data < 2 Gb Ø Municipalties sometimes > 2 Gb Ø In the future: deliver tiles Effects: - Extra processing was needed - Some municpalities have been clipped into multiple tiles 10

Issues Intended use Questions Field delineation example ESA EOFI Kick-off meeting – 17/05/2010 Results Issues Intended use Questions Field delineation example ESA EOFI Kick-off meeting – 17/05/2010 Results 11

Results Issues Intended use Questions Next steps? How can we help? System of receiving Results Issues Intended use Questions Next steps? How can we help? System of receiving user feedback? Ø IFAD Ø Local users Which users will/should be contacted? ESA EOFI Kick-off meeting – 17/05/2010 Should we (after a first feedback round) adjust the delivery/ products to improve reception of the data. Ø Colour adjustments Ø False colour images Ø Creation of land tenure examples (cfr. Certificates) … 12

ESA EOFI Kick-off meeting – 17/05/2010 Remote Sensing Applications www. eurosense. com 13 ESA EOFI Kick-off meeting – 17/05/2010 Remote Sensing Applications www. eurosense. com 13