Development of global digital vaetleion model dataset fpourblic socialbenefit

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This research is to develop a global digital terrain model (DTM) and digital surface model (DSM) by using photogrammetry, topography, interferometric synthetic aperture radar (InSAR), airborne LiDAR technologies. Since a project period is only three years, we focused on the three components including 1) development of an algorithm to differentiate between DSM and DTM from photogrammetry and InSAR measurements, 2) apply ALOS PALSAR data for vegetation monitoring which is the only one space bourne L band measurement, 3) prepare a global dataset available to public use. As a result, a bunch of dataset are ready to prepared including global DTM, building structure map, biomass map in forest and cropland. All of those dataset are expected to serve for a solution oriented scientific research including carbon cycle, atmospheric environment and urban study.