To provide the complete raw observational dataset acquired during the first three Ran AUV missions of the ANA14B expedition in the Amundsen Sea and beneath Thwaites Glacier, supporting investigations of ocean-ice interactions and the oceanographic and physical environment beneath Antarctic ice shelves.

Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

This dataset was produced with support from the OCEAN ICE project (Ocean-Cryosphere Exchanges in Antarctica: Impacts on Climate and the Earth System), funded by the European Union under Horizon Europe Grant Agreement No. 101060452. The dataset contains complete raw observations from the ANA14B_01, ANA14B_02 and ANA14B_03 Ran AUV missions. Navigation correction, sensor calibration and gridding have not been applied; post-processed and gridded products are expected to be linked by the source repository when available.

The dataset contains raw observations acquired during the first three Ran Autonomous Underwater Vehicle (AUV) missions, ANA14B_01, ANA14B_02 and ANA14B_03, performed during the ANA14B RVIB Araon expedition to the Amundsen Sea, West Antarctica, between 7 and 17 January 2024. The missions followed the seabed at approximately 50–90 m altitude and included observations beneath the Thwaites ice-shelf environment. The dataset represents the complete raw observations acquired during these missions. Navigation correction, sensor calibration and gridding have not been applied. File organisation and contents are documented through the accompanying folder-tree description, file description and mission-specific inventories, and SHA-256 checksums are provided for integrity verification.

ISO 19115-3

1.0