Antarctic-wide annual ice flow maps from Landsat 8 imagery between 2013 and 2019 ...
Ice velocity constitutes a key parameter for quantifying ice-sheet discharge rates and is thus crucial for improving the coupled models of the Antarctic ice sheet towards accurately predict its contribution to future global sea-level rise. However, in Antarctica, high-resolution and continuous ice v...
| Main Authors: | , , , , , , |
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| Format: | Dataset |
| Language: | unknown |
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Taylor & Francis
2020
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.6084/m9.figshare.13491222 https://tandf.figshare.com/articles/dataset/Antarctic-wide_annual_ice_flow_maps_from_Landsat_8_imagery_between_2013_and_2019/13491222 |
| Summary: | Ice velocity constitutes a key parameter for quantifying ice-sheet discharge rates and is thus crucial for improving the coupled models of the Antarctic ice sheet towards accurately predict its contribution to future global sea-level rise. However, in Antarctica, high-resolution and continuous ice velocity estimates remain elusive, which is key to unravel Antarctica’s present-day ice mass balance processes. Here, we present a suite of newly estimated Antarctic-wide, annually-sampled ice velocity products at 105-m grid-spacing observed by Landsat 8 optical images data. We first describe a procedure that can automatically calibrate and integrate ice displacement maps to generate Antarctic-wide seamless ice velocity products. The annual ice velocity mosaics are assembled using a total of 250,000 displacement maps inferred from more than 80,000 Landsat 8 images acquired between December 2013 and April 2019. The new annual Antarctic ice velocity data product exhibits an improved quantification of near-decadal ... |
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