Continent‐Wide, Interferometric SAR Phase, Mapping of Antarctic Ice Velocity
By Jeremie Mouginot, Eric J. M. Rignot, Bernd Scheuchl. Geophysical Research Letters, 2019
196 citations recorded by the source corpus.
Surface ice velocity is a fundamental characteristic of glaciers and ice sheets that quantifies the transport of ice. Changes in ice dynamics have a major impact on ice sheet mass balance and its contribution to sea level rise. Prior comprehensive mappings employed speckle and feature tracking techniques, optimized for fast‐flow areas, with precision of 2‐5 m/year, hence limiting our ability to describe ice flow in the slow interior. We present a vector map of ice velocity using the interferometric phase from multiple satellite synthetic aperture radars resulting in 10 times higher precision in speed (20 cm/year) and direction (5°) over 80% of Antarctica. Precision mapping over areas of slow motion (<1 m/year) improves from 20 to 93%, which helps better constrain drainage boundaries, improve mass balance assessment, evaluate regional atmospheric climate models, reconstruct ice thickness, and inform ice sheet numerical models.
Subfields: Atmospheric Science, Pulmonary and Respiratory Medicine
View Paper: https://www.semanticscholar.org/paper/6a48666dbd164a9f99efacb98037521c3932b51b
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In Atmospheric Science
- Isabella Velicogna
- Eric J. M. Rignot
- Jeremie Mouginot
- F. Landerer
- David Wiese
- Tyler Clark Sutterley
- John M. Wahr
- Anny Cazenave
In Pulmonary and Respiratory Medicine
Citations in the corpus
- Continuity of Ice Sheet Mass Loss in Greenland and Antarctica From the GRACE and GRACE Follow‐On Missions (2020, methodology): “The error estimates of the MBM time series are calculated following (Mouginot et al., 2019) and (Rignot et al., 2019).”