TerraSAR-X DInSAR displacement map of Kurungnakh Island (Lena River Delta, Siberia) in summer 2013, link to GeoTIFF file ...

• Main Authors: Antonova, Sofia, Sudhaus, Henriette, Strozzi, Tazio, Zwieback, Simon, Kääb, Andreas, Heim, Birgit, Langer, Moritz, Bornemann, Niko, Boike, Julia
• Format: Dataset
• Language: English
• Published: PANGAEA 2018
• Subjects: Satellite remote sensing; RU-Land_2013_Lena; AWI Arctic Land Expedition; Permafrost Research AWI_Perma; Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn; Polar Terrestrial Environmental Systems @ AWI AWI_Envi; lena river; permafrost; Siberia
• Online Access: https://dx.doi.org/10.1594/pangaea.894775; https://doi.pangaea.de/10.1594/PANGAEA.894775

Differential SAR interferometry (DInSAR) uses the phase difference between two SAR signals acquired on two dates over the same area to measure small-scale ground motion. During the last decade the method has been adapted for monitoring permafrost-related ground motion. Here we perform DInSAR on TerraSAR-X data to assess its viability for seasonal thaw subsidence detection in a yedoma landscape of the Lena River Delta.TerraSAR-X is a right-looking SAR satellite launched in 2007, operating in the X-band (wavelength 3.1 cm, frequency 9.6 GHz), with a revisit time of eleven days. All data that we used were acquired in StripMap mode with HH polarization from a descending orbit at 08:34 local acquisition time (22:34 UTC). The incidence angle of the track we use is approximately 31 degrees. The scene size covered an area of approximately 18 km x 56 km. The slant range and azimuth pixel spacing were approximately 0.9 m and 2.4 m, respectively. Based on the ground temperature data we roughly estimated the beginning ...