Published September 24, 2026 | Version v2

SAR-derived Antarctic sea ice velocity (2015-2023)

Authors/Creators

  • 1. ROR icon National Snow and Ice Data Center

Description

Antarctic sea ice velocity derived using Sentinel-1 synthetic aperture radar (SAR) images (2015-2023)

  • Sentinel-1 SAR data source: https://developers.google.com/earth-engine/datasets/catalog/COPERNICUS_S1_GRD
  • Sentinel-1 sea ice velocity algorithm: https://github.com/nansencenter/sea_ice_drift

Variable information

  • u_siv_sar: U-component sea ice velocity (x-direction on the NSIDC EASE-Grid South grid) derived from Sentinel-1 SAR image pairs
  • v_siv_sar: V-component sea ice velocity (y-direction on the NSIDC EASE-Grid South grid) derived from Sentinel-1 SAR image pairs
  • dt_sar: Time differences between Sentinel-1 SAR image pairs
  • sic: Daily sea ice concentration from NOAA/NSIDC Climate Data Record (https://doi.org/10.7265/b18j-z797)

Files

Files (242.1 MB)

Name Size
md5:327bcd2e8a1c58630ffbab4e12f760ef
27.3 MB Download
md5:4dd1befcb72ba83d7fb4c6d895bcc29b
25.9 MB Download
md5:b7564aa99fdfea95a77a4c298e32bf32
27.0 MB Download
md5:6bf5b5c8b0044649d0cc94b4be1219df
27.8 MB Download
md5:68b69cb67e0f7f9654b5e31eb8532ea4
27.3 MB Download
md5:234c9ce7c8fc12253a62d58c9b5a5603
29.3 MB Download
md5:565644e7c5975c2c41bbc58108e2e137
28.9 MB Download
md5:55220798f40802e7392c8f5ed19796c9
24.9 MB Download
md5:9ba8003b46697f1a2061ec2835684192
23.7 MB Download

Additional details

Dates

Updated
2026-09-24
dt_sar variable is corrected and updated.

Software

Repository URL
https://github.com/YoungHyunKoo/sea_ice_drift.git
Programming language
Python
Development Status
Active