USAP-DC

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{"@context": "https://schema.org/", "@type": "Dataset", "@id": "https://www.usap-dc.org/view/dataset/601914", "additionalType": ["geolink:Dataset", "vivo:Dataset"], "name": "Sentinel-1-derived monthly-averaged velocity components from Thwaites Eastern Ice Shelf, 2016 - 2022", "description": "Monthly velocity composites were produced from January 2016 to December 2022 using Sentinel-1 Interferometric Wide Swath (IW) mode using standard feature/speckle tracking procedures. From 2016 to 2021, up to 10 mosaics per month were averaged (Sentinel 1A and Sentinel 1B). After Sentinel-1B ended in December 2021, mosaics decreased to 2 per month (12-day pairs only from Sentinel 1A), producing more noisy data and larger data gaps. We used 6- and 12-day Sentinel-1 image pairs from the archive and a feature tracking window of 416 \u00d7 128 pixels (\u223c1 km in range and azimuth). 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(2025) \"Sentinel-1-derived monthly-averaged velocity components from Thwaites Eastern Ice Shelf, 2016 - 2022\" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/None.", "datePublished": "2025-03-11", "keywords": ["Antarctica", "Cryosphere", "Glaciology", "Ice Shelf", "Thwaites Glacier", "Velocity"], "creator": [{"@type": "Person", "additionalType": "geolink:Person", "name": "Alley, Karen", "email": "karen.alley@umanitoba.ca", "affiliation": {"@type": "Organization", "name": null}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Banerjee, Debangshu", "email": "banerjed@myumanitoba.ca", "affiliation": {"@type": "Organization", "name": null}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Lilien, David", "email": "dal22@uw.edu", "affiliation": {"@type": "Organization", "name": null}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Luckman, Adrian", "email": null, "affiliation": {"@type": "Organization", "name": null}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Muto, Atsuhiro", "email": "amuto@temple.edu", "affiliation": {"@type": "Organization", "name": null}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Pettit, Erin", "email": "pettiter@oregonstate.edu", "affiliation": {"@type": "Organization", "name": "Box 351310, Seattle, Washington 98195-1310, USA"}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Scambos, Ted", "email": "tascambos@colorado.edu", "affiliation": {"@type": "Organization", "name": "National Snow and Ice Data Center, CIRES, 449 UCB"}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Truffer, Martin", "email": "mtruffer2@alaska.edu", "affiliation": {"@type": "Organization", "name": "Physics Department, University of Alaska Fairbanks, P.O. 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Sentinel-1-derived monthly-averaged velocity components from Thwaites Eastern Ice Shelf, 2016 - 2022 Cite as Banerjee, D., Alley, K., Lilien, D., Luckman, A., Muto, A., Pettit, E. C., et al. (2025) "Sentinel-1-derived monthly-averaged velocity components from Thwaites Eastern Ice Shelf, 2016 - 2022" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/None. Abstract Monthly velocity composites were produced from January 2016 to December 2022 using Sentinel-1 Interferometric Wide Swath (IW) mode using standard feature/speckle tracking procedures. From 2016 to 2021, up to 10 mosaics per month were averaged (Sentinel 1A and Sentinel 1B). After Sentinel-1B ended in December 2021, mosaics decreased to 2 per month (12-day pairs only from Sentinel 1A), producing more noisy data and larger data gaps. We used 6- and 12-day Sentinel-1 image pairs from the archive and a feature tracking window of 416 × 128 pixels (∼1 km in range and azimuth). We sampled the velocity field at 50 × 10 pixels before geocoding to the Antarctic Polar Stereographic projection (EPSG:3031) at 100 m resolution using the REMA mosaic DEM. DEM gaps were filled using Bedmap2 surface topography data. Creator(s): Banerjee, Debangshu; Lilien, David; Luckman, Adrian; Truffer, Martin; Wild, Christian; Pettit, Erin; Scambos, Ted; Muto, Atsuhiro; Alley, Karen Date Created: 2025-03-11 Repository: USAP-DC (current) License: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0] Spatial Extent(s) West: -106.5, East: -104.5, South: -75.5, North: -74.5 Temporal Extent(s) Start: 2016-01-01 - End: 2022-12-31 Award(s) NSF 1929991 Version: 1 Related Project(s) NSF-NERC: Thwaites-Amundsen Regional Survey and Network (TARSAN) Integrating Atmosphere-Ice-Ocean Processes affecting the Sub-Ice-Shelf Environment Keywords Antarctica Cryosphere Glaciology Ice Shelf Thwaites Glacier Velocity