TerraSAR X and TanDEM X satellite missions update & other activities Dana Floricioiu German Aerospace Center (DLR), Remote Sensing Technology

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1 TerraSAR X and TanDEM X satellite missions update & other activities Dana Floricioiu German Aerospace Center (DLR), Remote Sensing Technology Institute, Oberpfaffenhofen, Germany PSTG June 2012

2 Data acquisition & monitoring: (1) TerraSAR X TerraSAR X background mission: Antarctic Peninsula & Antarctic Ice Shelves Goals: Monitoring glaciological processes Mapping detailed structures of the glaciers PI Angelika Humbert (AWI Bremerhaven) Last 6 months focus on: Pine Island Glacier, Riiser IS, Flimbul IS Ekström Ice Shelf, Neumayer Station, TDX 1 satellite, ScanSAR mode on 31 May B15X iceberg Ekström Ice Shelf,

3 Data acquisition & monitoring: (1) TerraSAR X TerraSAR X science project: Ice velocity measurements of Greenland outlet glaciers 22 rapidly changing outlet glaciers have been monitored with TerraSAR X since January Acquisition planning (repeat pass pairs) by Ian Joughin (Univ. of Washington) Mission is going on through 2012 as Greenland Ice Mapping Project (PI Ian Joughin) Open TerraSAR X AOs x.dlr.de/ Frames of TerraSAR X acquisitions over Greenland outlet glaciers, background Folie 3 Radarsat 1 PSTG Oct Institut PSTG 2 für Methodik der Fernerkundung bzw. Deutsches 12 Fernerkundungsdatenzentrum courtesy 14 June I Joughin.

4 Data acquisition: (2) TanDEM X TanDEM X acquisition & processing status 24 May 2012 Antarctic Peninsula: operational acquisitions started Antarctica: dedicated LL mission in 2013 Folie 4 PSTG Oct PSTG June 2012 Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

5 Data acquisition: (2) TanDEM X Land coherence map of processed TanDEM X acquisitions (status 24 May 2012) Dry snow: volume decorrelation Forest: volume decorrelation Deserts: low SNR Display error Bare soil/low veg.: high coherence Complex topography: shadow/layover Folie 5 PSTG Oct PSTG June 2012 Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

6 Data acquisition: (2) TanDEM X Land coherence map of TanDEM X acquisitions Greenland status (May 2012) On the ice sheet: volume decorrelation in dry snow flat topography Coastal areas: coherence is underestimated (coarse global water mask) complex topography Disko Bay 2012 additional acquisitions with reduced baseline improved coherence Experimental DT Folie 6 PSTG 2 PSTG June Oct Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

7 Data acquisition: Preliminary TanDEM X operational raw DEM mosaic: Kangerlussuaq Gl. (2) TanDEM X TSX amplitude, 2009 Folie 7 PSTG Oct PSTG June 2012 Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

8 High level geophysical products over glacier areas: (1) TerraSAR X High resolution 2D velocity fields The position of the grounding line along Transantarctic Mts. with DInSAR N Beardmore glacier, Transantarctic Mts. 1.0 Ice flow GL Ross Ice Shelf 0 km 50 [m/d] [m/a] red line : TerraSAR X cyan line: Radarsat 2 from Rignot et al, 2011 Folie 8 PSTG 2 PSTG June Oct Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

9 High level geophysical products: (2) TanDEM X decadal ice elevation changes TanDEM X DEM ( ) Bistatic acquisition Height of ambiguity: 48.4 m From TanDEM X DEM difference: SRTM ( ) TanDEM X ( ) Surface elevation change (TanDEM X / Viedma Gl. SRTM (Feb 2000) DH > 0 ó surface lowering 0 km ICESat track +160 m 17.5 km 0 m Upsala Gl. 35 km 160 m Height [m] apply to other areas Elevation profiles along ICESat track 1350 (CLiC, Feb 2012) 3000 m m Distance [km] May 2011 TanDEM X Feb SRTM Feb IceSAT Folie 9 PSTG Oct PSTG June 2012 Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

10 Other activities: IceBridge flight on 12 Nov 2011 from Punta Arenas to Pine Island Bay NASA Operation IceBridge on DC 8 aircraft Oct. Nov TSX Thwaites Glacier front (1 Oct. 2011) Iceberg at Thwaites Glacier front (12 Nov. 2011) Folie 10 PSTG 2 PSTG June Oct Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

11 Pine Island Glacier: new rift formed beginning of October 2011 monitoring with TerraSAR X is ongoing new iceberg (780 km 2 ) formation expected at any time TSX velocity 16.0 md Folie 11 PSTG 2 PSTG June Oct Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

12 multi sensor approach Folie 12 PSTG 2 PSTG June Oct Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

13 Other activities: Preparation of German national response to ESA s Sentinel Collaborative Ground Segment questionnaire Value adding product Sentinel 1: High level geophysical products of Antarctic and Greenland outlet glaciers and ice shelves Activity: Monitoring of outlet glaciers and ice shelves by means of InSAR and Proposed sites: (1) feature/speckle tracking Greenland outlet glaciers (2) Ant. Pen., Antarctic ice shelves & outlet glaciers Sentinel 1 coverage up to ~78 S, no left looking capability Folie 13 PSTG 2 PSTG June Oct Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

14 Other activities: TerraSAR X repeat pass acquisitions in parallel to IceSAR campaign (DTU & ESA) on Russell Glacier, WGreenland May June 2012 Airborne P band POLARIS SAR overflights TerraSAR X footprints Surveyed area Folie 14 PSTG Oct PSTG June 2012 Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

15 Oral and poster sessions on ice sheets and glaciers: Tue 24 July We 25 July Folie 15 PSTG 2 PSTG June Oct Institut für Methodik der Fernerkundung bzw. Deutsches Fernerkundungsdatenzentrum

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