USAP-DC

[{"dataset_id": "601992", "west": -105.569386, "east": -105.431496, "south": -75.037072, "north": -75.026753, "gid": 1441, "geometry": "0101000020E6100000F624B03907605AC05AF5B9DA0AC252C0", "cross_dateline": false, "bounds_geometry": "0103000020E610000001000000290000003733FAD170645AC079043752B6C152C05D30B8E68E635AC079043752B6C152C0832D76FBAC625AC079043752B6C152C0AA2A3410CB615AC079043752B6C152C0D027F224E9605AC079043752B6C152C0F624B03907605AC079043752B6C152C01C226E4E255F5AC079043752B6C152C0421F2C63435E5AC079043752B6C152C0691CEA77615D5AC079043752B6C152C08F19A88C7F5C5AC079043752B6C152C0B51666A19D5B5AC079043752B6C152C0B51666A19D5B5AC0A634513AC7C152C0B51666A19D5B5AC0D3646B22D8C152C0B51666A19D5B5AC00095850AE9C152C0B51666A19D5B5AC02DC59FF2F9C152C0B51666A19D5B5AC05AF5B9DA0AC252C0B51666A19D5B5AC08625D4C21BC252C0B51666A19D5B5AC0B355EEAA2CC252C0B51666A19D5B5AC0E08508933DC252C0B51666A19D5B5AC00DB6227B4EC252C0B51666A19D5B5AC03AE63C635FC252C08F19A88C7F5C5AC03AE63C635FC252C0691CEA77615D5AC03AE63C635FC252C0421F2C63435E5AC03AE63C635FC252C01C226E4E255F5AC03AE63C635FC252C0F624B03907605AC03AE63C635FC252C0D027F224E9605AC03AE63C635FC252C0AA2A3410CB615AC03AE63C635FC252C0832D76FBAC625AC03AE63C635FC252C05D30B8E68E635AC03AE63C635FC252C03733FAD170645AC03AE63C635FC252C03733FAD170645AC00DB6227B4EC252C03733FAD170645AC0E08508933DC252C03733FAD170645AC0B355EEAA2CC252C03733FAD170645AC08625D4C21BC252C03733FAD170645AC05AF5B9DA0AC252C03733FAD170645AC02DC59FF2F9C152C03733FAD170645AC00095850AE9C152C03733FAD170645AC0D3646B22D8C152C03733FAD170645AC0A634513AC7C152C03733FAD170645AC079043752B6C152C0"}]

{"@context": "https://schema.org/", "@type": "Dataset", "@id": "https://www.usap-dc.org/view/dataset/601992", "additionalType": ["geolink:Dataset", "vivo:Dataset"], "name": "Shallow firn cores on Thwaites Eastern Ice Shelf - densities and water isotope analysis", "description": "This dataset contains measurements of firn densities and d18O, dD, and d-excess of O2 from water samples taken from two shallow firn cores on Thwaites Eastern Ice Shelf. The shallow firn cores were collected at Cavity Camp and Channel Camp on January 5 and 8, 2023 (respectively). The core was sampled at 3-10cm resolution, down to 8m below the surface (covering approximately the period of 2018-2023). Water samples were collected from each section of the core, melted, and used for water isotope analysis, which was performed in June 2023. The data file contains three sheets: a README, the data from Channel Camp, and the data from Cavity Camp. ", "citation": "Maclennan, M., Morris, V., Ochwat, N., & Pettit, E. C. (2025) \"Shallow firn cores on Thwaites Eastern Ice Shelf - densities and water isotope analysis\" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/None.", "datePublished": "2025-06-05", "keywords": ["Antarctica", "Cryosphere", "Firn", "Glaciers/ice Sheet", "Snow/ice", "Thwaites", "Water Isotopes"], "creator": [{"@type": "Person", "additionalType": "geolink:Person", "name": "Maclennan, Michelle L.", "email": "mima7379@colorado.edu", "affiliation": {"@type": "Organization", "name": null}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Morris, Valerie", "email": null, "affiliation": {"@type": "Organization", "name": null}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Ochwat, Naomi", "email": "naomi.ochwat@colorado.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"}}], "distribution": [{"@type": "DataDownload", "additionalType": "http://www.w3.org/ns/dcat#DataCatalog", "encodingFormat": "text/xml", "name": "ISO Metadata Document", "url": "https://www.usap-dc.org/metadata/isoxml/601992iso.xml", "contentUrl": "/dataset/filename"}, {"@type": "DataDownload", "@id": "https://www.usap-dc.org/view/dataset/601992", "additionalType": "dcat:distribution", "url": "https://www.usap-dc.org/view/dataset/601992", "contentUrl": "/dataset/filename", "encodingFormat": "text/html"}, {"@type": "DataDownload", "@id": "https://www.usap-dc.org/view/dataset/601992", "additionalType": "dcat:distribution", "url": "https://www.usap-dc.org/view/dataset/601992", "contentUrl": "/dataset/filename", "encodingFormat": "text/html"}], "identifier": {"@type": "PropertyValue", "url": "https://www.usap-dc.org/view/dataset/601992", "value": "https://www.usap-dc.org/view/dataset/601992"}, "contributor": [{"@type": "Role", "roleName": "credit", "description": "funderName:NSF:GEO:OPP:Antarctic Glaciology awardNumber:1929991 awardTitle:NSF-NERC: Thwaites-Amundsen Regional Survey and Network (TARSAN) Integrating Atmosphere-Ice-Ocean Processes affecting the Sub-Ice-Shelf Environment"}], "license": [{"@type": "CreativeWork", "URL": "https://creativecommons.org/licenses/by/4.0/", "name": "MD_Constraints", "description": "useLimitation: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0]."}, {"@type": "CreativeWork", "name": "MD_LegalConstraints", "description": "accessConstraints: license. otherConstraints: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0]."}, {"@type": "CreativeWork", "name": "MD_SecurityConstraints", "description": "classification: "}], "publisher": {"@type": "Organization", "name": "U.S. Antarctic Program (USAP) Data Center"}, "spatialCoverage": [{"@type": "Place", "geo": {"@type": "GeoShape", "box": "-75.037072, -105.569386, -75.026753, -105.431496"}}]}

Shallow firn cores on Thwaites Eastern Ice Shelf - densities and water isotope analysis Cite as Maclennan, M., Morris, V., Ochwat, N., & Pettit, E. C. (2025) "Shallow firn cores on Thwaites Eastern Ice Shelf - densities and water isotope analysis" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/None. Abstract This dataset contains measurements of firn densities and d18O, dD, and d-excess of O2 from water samples taken from two shallow firn cores on Thwaites Eastern Ice Shelf. The shallow firn cores were collected at Cavity Camp and Channel Camp on January 5 and 8, 2023 (respectively). The core was sampled at 3-10cm resolution, down to 8m below the surface (covering approximately the period of 2018-2023). Water samples were collected from each section of the core, melted, and used for water isotope analysis, which was performed in June 2023. The data file contains three sheets: a README, the data from Channel Camp, and the data from Cavity Camp. Creator(s): Maclennan, Michelle L.; Pettit, Erin; Morris, Valerie; Ochwat, Naomi Date Created: 2025-10-06 Repository: USAP-DC (current) License: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0] Spatial Extent(s) West: -105.569386, East: -105.431496, South: -75.037072, North: -75.026753 Temporal Extent(s) Start: 2018-08-01 - End: 2023-01-08 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 Firn Glaciers/ice Sheet Snow/ice Thwaites Water Isotopes