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ASF IceBridge DMS Data Collection and Processing

ASF IceBridge DMS Data Collection and Processing. RoseAnne Dominguez / Haiping Su University of California Santa Cruz NASA Ames UARC. IceBridge Instrument Summit June 14-16 2011. DC8 Fall 2009 240,413 Frames. DC8 Spring2010 95,145 Frames.

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ASF IceBridge DMS Data Collection and Processing

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  1. ASF IceBridge DMS Data Collection and Processing RoseAnne Dominguez / Haiping Su University of California Santa Cruz NASA Ames UARC IceBridge Instrument Summit June 14-16 2011

  2. DC8 Fall 2009 240,413 Frames DC8 Spring2010 95,145 Frames DC8 Fall 2010 178,001 Frames P3 Spring 2011 428,403 Frames * DMS IceBridge Geotiff Coverage 2009-2011* P3 Spring 2010 168,320 Frames

  3. ASP DMS Issues Performance Issues / Processing Update • 2009 imagery reprocessed (V02) using revised boresight, lens distortion and DEM input (geotiff metadata notes changes) • 2010 mounting bracket installation error (26 Oct 2010 camera failure) • Shutter maintenance • Metadata update Processing Limitations • DEM input (resolution and accuracy) • DEM height exceeds aircraft flight profile • Aircraft and DEM converge (minimum supportable pixel size is 1.5cm) • International Dateline Crossing • Polar Crossing • Non continuous operation • Clear sky conditions

  4. ASP DMS Accuracy Summary Current Inputs • Lens distortion model • Boresight • GLAS/IceSat 1km (Greenland) • Radarsat 200m (Antarctica) • ASTER Global Digital Elevation Model (GDEM) 30m • SRTMplus - 90m • National Elevation Dataset 1/3 Arc-Second (NED 1/3) Accuracy Assessment Geotiff to Survey RMS Punta Arenas 2009 4.06m (9 flights avg resolution 0.18m) Punta Arenas 2010 3.89m (4 flights avg resolution 0.10m) Palmdale CA 2010 0.60m (1 flight pixel resolution 0.25m) Geotiff to NAIP/HRO Orthoimagery Palmdale CA 2009 2.37m (2 flights avg resolution 2.18m) Palmdale CA 2010 5.14m (2 flights avg resolution 1.31m) Wallops VA 2010 1.70m (1 flight pixel resolution 0.08m)

  5. Error Affect Samples Heading Error Roll Error Aircraft to Ground difference (e.g. DEM error)

  6. Summary • The Airborne Sensor Facility’s provision and support of DMS is as an ASP facility tracking camera. All higher level products are on a best effort basis only.

  7. Punta Arenas Airport Accuracy Goal (1500’ / 35000’) X-Y 0.5m / 5.0m Dependent on DEM resolution, bore-sight quality and IMU capability

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