Brett, Gemma Marie; Leonard, Gregory H; Rack, Wolfgang; Irvin, Anne; Haas, Christian; Langhorne, Patricia J (2024): Late spring 2018 land-fast sea ice and sub-ice platelet layer thicknesses from electromagnetic induction soundings along transect West-East-EM-Transect_20181101 in McMurdo Sound, Antarctica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.968702, In: Brett, GM et al. (2024): Late spring 2018 land-fast sea ice and sub-ice platelet layer thicknesses from electromagnetic induction soundings along repeated west to to east transects in McMurdo Sound, Antarctica [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.968701
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Abstract:
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).
Keyword(s):
Related to:
Brett, Gemma Marie; Leonard, Gregory H; Rack, Wolfgang; Haas, Christian; Langhorne, Patricia J; Robinson, Natalie J; Irvin, Anne (2024): Seasonal and diurnal variability of sub-ice platelet layer thickness in McMurdo Sound from electromagnetic induction sounding. The Cryosphere, 18(7), 3049-3066, https://doi.org/10.5194/tc-18-3049-2024
Irvin, Anne (2018): Towards Multi-Channel Inversion of Electromagnetic Sea Ice Surveys [dissertation]. York University, Toronto, Canada, 148 pp, hdl:10315/35925
Project(s):
Funding:
National Institute of Water and Atmospheric Research (NIWA), grant/award no. NIWA_SSIF: Research supported Strategic Science Investment Funding
Coverage:
Median Latitude: -77.768114 * Median Longitude: 165.560941 * South-bound Latitude: -77.774726 * West-bound Longitude: 164.798657 * North-bound Latitude: -77.761817 * East-bound Longitude: 166.400948
Date/Time Start: 2018-11-01T22:13:27 * Date/Time End: 2018-11-02T00:48:33
Event(s):
West-East-EM-Transect_20181101 * Latitude Start: -77.766568 * Longitude Start: 166.400867 * Latitude End: -77.766688 * Longitude End: 164.798657 * Date/Time Start: 2018-11-01T22:13:27 * Date/Time End: 2018-11-02T00:48:33 * Location: McMurdo * Method/Device: Ground-based electromagnetic induction (GEM)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Brett, Gemma Marie | Geocode | ||
| 2 | Identification | ID | Brett, Gemma Marie | pointno | ||
| 3 | LONGITUDE | Longitude | Brett, Gemma Marie | Geocode | ||
| 4 | LATITUDE | Latitude | Brett, Gemma Marie | Geocode | ||
| 5 | Sea ice thickness | EsEs | m | Brett, Gemma Marie | Electromagnetic sounding (EM), Geonics Ltd EM31-MK2 | |
| 6 | Sub-ice platelet-layer thickness | SIPL | m | Brett, Gemma Marie | Electromagnetic sounding (EM), Geonics Ltd EM31-MK2 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
27630 data points
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