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Strozzi, Tazio (2012): InSAR Digital Elevation Models for subsidence with link to geotiff files. GAMMA Remote Sensing Research and Consulting AG, PANGAEA, https://doi.org/10.1594/PANGAEA.783307

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Project(s):
Coverage:
Median Latitude: 69.550000 * Median Longitude: -140.800000 * South-bound Latitude: 69.500000 * West-bound Longitude: -148.600000 * North-bound Latitude: 69.600000 * East-bound Longitude: -133.000000
Event(s):
DUEPermafrost_Mackenzie_Delta  * Latitude: 69.500000 * Longitude: -133.000000 * Method/Device: Satellite remote sensing (SAT) * Comment: position describes the center of area
DUEPermafrost_NorthSlope  * Latitude: 69.600000 * Longitude: -148.600000 * Method/Device: Satellite remote sensing (SAT) * Comment: position describes the center of area
Comment:
The main result of the SAR interferometric analysis is a temporal series of displacement maps on coherent targets in the satellite line-of-sight direction. Local InSAR Digital Elevation models are provided for two regions, Alaska Northslope (US) and Mackenzie River Delta (Canada): ASAR InSAR DEM, North Slope (Alaska); Terra SAR-X InSAR DEM North Slope (Alaska); Terra SAR-X InSAR DEM, Mackenzie River Delta (Canada).
The development of SAR interferometry to detect long-term surface subsidence due to permafrost-related phenomena appears to be an excellent research opportunity. However, the use of this data for permafrost applications is still being developed. Multiple interferograms from different sensors (ERS-1/2, ENVISAT, ALOS, TerraSAR-X) were used within this project. In consideration of data availability, land and snow cover and topography a short-baseline interferometric approach was employed (Berardino et al., 2002, doi:10.1109/TGRS.2002.803792). The main result of the SAR interferometric analysis is a temporal series of displacement maps on coherent targets in the satellite line-of-sight direction. The subsidence parameter represents the surface displacement along the satellite line-of-sight relative to a reference position and reference time. The most important sources of inaccuracy are related to atmospheric artifacts and phase unwrapping errors.
The product guide: hdl:10013/epic.39375.d007
This dataset is part of the ESA Data User Element (DUE) Permafrost Local Services-I Set (doi:10.1594/PANGAEA.783634).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEvent
Date/time startDate/time startStrozzi, Tazio
Date/time endDate/time endStrozzi, Tazio
File nameFile nameStrozzi, Tazio
File sizeFile sizekByteStrozzi, Tazio
Uniform resource locator/link to fileURL fileStrozzi, TazioGeoTIFF
Size:
15 data points

Data

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Event

Date/time start

Date/time end

File name

File size [kByte]

URL file
DUEPermafrost_NorthSlope 2010-06-222010-08-31Alaska_DEM_ASAR_InSAR227533Alaska_DEM_ASAR_InSAR.zip
DUEPermafrost_NorthSlope2010-06-022011-09-29Alaska_DEM_TerraSAR-X_InSAR1211632Alaska_DEM_TerraSAR-X_InSAR.zip
DUEPermafrost_Mackenzie_Delta 2009-07-162010-08-27Mackenzie_DEM_TerraSAR-X_InSAR7804Mackenzie_DEM_TerraSAR-X_InSAR.zip