Geometric exploitation of the amplitude of medium and high resolution SAR imagery: state-of-the-art and future prospects

Transcription

1 Geometric exploitation of the amplitude of medium and high resolution SAR imagery: state-of-the-art and future prospects A. Nascetti, F. Fratarcangeli, M. Di Rita, R. Ravanelli, A. Mazzoni, M. Crespi Geodesy and Geomatics Division - DICEA University of Rome La Sapienza Workshop ESA Global Monitoring of Essential Climate Variables (GMECV) ASI, Rome, 19 July 2016 Geometric exploitation of the amplitude of medium and high resolution SAR imagery 1 / 7

2 Our Heritage about CCI+ Glaciers surface velocity field - demonstration of the high potential of Sentinel-1 imagery; definition of an original algorithm based on amplitude offset tracking and selective coregistration; FOSS software under implementation Digital Surface Model through radargrammetry - original matching algorithm, SISAR software implementation, new DATE FOSS software under implementation; application to TerraSAR-X and COSMO-SkyMed (first published case), even with two images only Imaging Geodesy - demonstration of the absolute and relative (local areas) positioning capability in the global reference frame (ITRF) along the line-of-sight at decimeter and few centimeters accuracy level respectively, for TerraSAR-X and COSMO-SkyMed (first experiment, just presented at ISPRS 2016 Conference - Prague); FOSS software under implementation Geometric exploitation of the amplitude of medium and high resolution SAR imagery 2 / 7

3 Proposed activities - 1 CCI+ Scope New R&D on ECVs that were started in CCI Terrestrial - Glaciers and Ice Caps Realization of a platform for continuous worldwide monitoring of the glaciers surface velocity (dependent on ice thickness) To support climate change investigations and data exchange (no standardized and routinely updated database is presently available) A. Nascetti, F. Fratarcangeli, M. Di Rita, R. Ravanelli, A. Mazzoni, M. Crespi Geodesy and Geomatics division - University of Rome La Sapienza Geometric exploitation of the amplitude of medium and high resolution SAR imagery 3/7

4 Proposed activities - 2 CCI+ Scope Development of new ECVs Terrestrial - Above Ground Biomass Application of radargrammetry for generation of Canopy Surface Model: complementing other used approaches benefiting of the coherence independence of the radargrammetric approach Geometric exploitation of the amplitude of medium and high resolution SAR imagery 4 / 7

5 International ongoing and future collaborations Glacier monitoring worldwide platform University of Bahia Blanca, Argentina (studies on Patagonia Glaciers) ESA (recently funded project within EOEI initiative) NASA (idea prized within NASA Space APPs Challenge 2016) GLIMS (interaction with glacier available databases) Above Ground Biomass using radargrammetry (waiting for BIOMASS mission) Collaborations with imagery owners supplying the software Comparison with DLR quasi real-time interferometry (TANDEM-X) as a complementary approach Geometric exploitation of the amplitude of medium and high resolution SAR imagery 5 / 7

6 National impacts Glacier monitoring worldwide platform Exploitation of COSMO-SkyMed for regular monitoring of Italian Glaciers Connection with Italian Glaciological Committee and Community Studies on Antartica Glaciers in connection with the national research Antartic program Above Ground Canopy using radargrammetry waiting for BIOMASS On demand generation of radargrammetric DSM all over the world through COSMO-SkyMed Testing the proposed approach over the Italian territory Geometric exploitation of the amplitude of medium and high resolution SAR imagery 6 / 7

7 Thank you very much for your kind attention Geometric exploitation of the amplitude of medium and high resolution SAR imagery 7 / 7