The Alaska Satellite Facility s InSAR Initiative

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1 The Alaska Satellite Facility s InSAR Initiative Gwendolyn Bryson ASF Data Quality Engineer Jeremy Nicoll ASF Project Engineer CEOS Cal/Val Workshop, November

2 InSAR Applications Massonnet et al. (1993) Seismic Events Land Subsidence Massonnet (1997) Volcanic Hazards Strozzi and Wegmüller (1997) Forestry Image Credits: Received by CCRS Pre-processed by RSI Interpretation: Laurence Gray, CCRS Karim Mattar, Intermap Paris Vachon, CCRS CSA, 1996 Glacier Research CEOS Cal/Val Workshop, November

3 Initial Project Charter Define a standardized InSAR product, generate that product, and make it readily available to the user community. CEOS Cal/Val Workshop, November

4 Search and Order InSAR Pairs in User Remote Sensing Access (URSA) CEOS Cal/Val Workshop, November

5 InSAR Search Features Select InSAR compatible settings to search platforms Search Restrictions: Ascending orbits Descending orbits Repeat data only Minimum InSAR stack size InSAR Help CEOS Cal/Val Workshop, November

6 InSAR Results Features InSAR Tab: InSAR stacks Expand stacks to view and order granules View in Google Earth Baseline Info: Updated baseline calculations Plot of temporal versus perpendicular CSV download CEOS Cal/Val Workshop, November

7 Baseline Plot Interactive Critical baseline highlighted in red Rollover granule summary Click granule to add to shopping cart Highlight area to zoom Select master directly from plot Baseline Filter CEOS Cal/Val Workshop, November

8 URSA InSAR Stacks 2,091,086 granules 523,111stacks Largest stack: 142 granules RADARSAT ERS 1 & 2 JERS-1 ALOS PALSAR CEOS Cal/Val Workshop, November

9 Beta InSAR Product Packages CEOS Cal/Val Workshop, November

10 ROI PAC & MapReady ROI PAC creates coherence image and interferogram MapReady geocodes coherence image and interferogram UTM Amplitude UTM Coherence UTM Interferogram ALPSRP ALPSRP amp.jpg ALPSRP ALPSRP coh.jpg ALPSRP ALPSRP int.jpg CEOS Cal/Val Workshop, November

11 Beta Product Packages UTM_GEOTIFF.tgz file containing interferogram, coherence image, and amplitude image Geocoded to UTM projection Stored in GeoTIFF format COMPLEX_PAIR UTM_GEOTIFF Complex SLC Master and Slave data in ROI PAC format CEOS Cal/Val Workshop, November

12 Beta Product Packages COMPLEX_IGRAM UTM_GEOTIFF Complex interferogram in ROI PAC format COMPLEX_PAIR_AND_IGRAM UTM_GEOTIFF COMPLEX_PAIR COMPLEX_IGRAM CEOS Cal/Val Workshop, November

13 Future: Enhanced InSAR Services CEOS Cal/Val Workshop, November

14 InSAR Tiger Team Gerald Bawden Brian Conway Eric Fielding Rick Forster Nettie La Belle-Hamer Franz Meyer Marc Simard Paul Siqueira Bernd Scheuchl CEOS Cal/Val Workshop, November

15 Future Phases 1. Include InSAR browse images in URSA CEOS Cal/Val Workshop, November

16 Future Phases 1. Include InSAR browse images in URSA 2. Implement data discovery based on browse images and quality control measures Baseline Coherence CEOS Cal/Val Workshop, November

17 Future Phases 1. Include InSAR browse images in URSA 2. Implement data discovery based on browse images and quality control measures 3. Provide additional InSAR custom processing options: Geocoded Terrain Corrected Phase Unwrapped CEOS Cal/Val Workshop, November

18 Future Phases 1. Include InSAR browse images in URSA 2. Implement data discovery based on browse images and quality control measures 3. Provide additional InSAR custom processing options 4. Create user scratch space and/or InSAR datapool CEOS Cal/Val Workshop, November

19 NASA ROSES ACCESS Advancing Collaborative Connections for Earth System Science Define and make available new QC InSAR parameters and products Enhance access to UAVSAR interferograms Uniform access to independent InSAR archives Establish InSAR product data archive with UNAVCO/WInSAR CEOS Cal/Val Workshop, November

20 The Alaska Satellite Facility s InSAR Initiative Before Topo-Phase Compensation After Topo-Phase Compensation After Terrain Correction and Geocoding Gwendolyn Bryson ASF Data Quality Engineer Jeremy Nicoll ASF Project Engineer CEOS Cal/Val Workshop, November

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