Antarctic-wide annual ice flow maps from Landsat 8 imagery between 2013 and 2019 ...

• Main Authors: Shen, Qiang, Wang, Hansheng, Shum, C. K., Jiang, Liming, Hsu, Houtse, Gao, Fan, Zhao, Yingli
• Format: Dataset
• Language: unknown
• Published: Taylor & Francis 2020
• Subjects: Space Science; Medicine; Environmental Sciences not elsewhere classified; Chemical Sciences not elsewhere classified; Astronomical and Space Sciences not elsewhere classified; Marine Biology; Inorganic Chemistry; FOS Chemical sciences; Plant Biology; FOS Biological sciences; Antarctic; The Antarctic; Antarc*; Antarctica; Ice Sheet
• 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

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 ...