Late spring 2018 land-fast sea ice and sub-ice platelet layer thicknesses from electromagnetic induction soundings along transect West-East-EM-Transect_20181119 in McMurdo Sound, Antarctica
- Description:
- Ground-based electromagnetic induction (EM) measurements of land-fast sea ice and sub-ice platelet layer (SIPL) thickness distributions were carried out in McMurdo Sound, Antarctica in late spring (November 1-19) of 2018. Repeated west to east EM transects were carried out across McMurdo Sound along latitude 77.767°S. The EM data was acquired using a frequency-domain Geonics Ltd EM31-MK2 instrument mounted on a sledge and towed by skidoo. The thicknesses of consolidated ice (sea ice plus the snow layer) and the sub-ice platelet layer were simultaneously retrieved from the EM31 measured response using forward modelling and inversion methods of Irvin (2018). Variability in EM thicknesses detected significant growth of sub-ice platelet layer over the 18-day survey period (Brett et al., 2024).
- Brett, Gemma Marie, Leonard, Gregory H, Rack, Wolfgang, Irvin, Anne, Haas, Christian, and Langhorne, Patricia JAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
- Source Repository:
- PANGAEA
- Publisher(s):
- PANGAEA
- License:
- Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode
- URL:
- https://doi.pangaea.de/10.1594/PANGAEA.968706
- Publication date:
- 2024
- Subjects:
- DATE/TIME, Identification, LATITUDE, LONGITUDE, Antarctic sea ice, electromagnetic induction, ice-ocean interaction, Ice thickness, Sub-ice platelet layer, Sea ice thickness, Sub-ice platelet-layer thickness, Ground-based electromagnetic induction, Electromagnetic sounding (EM), Geonics Ltd EM31-MK2, and DEEP SOUTH NATIONAL SCIENCE CHALLENGE: Targeted observation and process-informed modelling of Antarctic sea ice (TOPIMASI)
- Identifier:
- https://doi.org/10.1594/pangaea.968706
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