Brett, Gemma Marie; Leonard, Gregory H; Rack, Wolfgang; Irvin, Anne; Haas, Christian; Langhorne, Patricia J; Smith, Inga J (2024): Winter 2018 time-series measurement of land-fast sea ice and sub-ice platelet layer thicknesses from electromagnetic induction soundings in McMurdo Sound, Antarctica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.968700
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Abstract:
Ground-based electromagnetic induction (EM) time-series measurements of land-fast sea ice and sub-ice platelet layer thicknesses were carried out on land-fast sea ice in McMurdo Sound, Antarctica in winter (August 8 to 26 October) and late spring (November 4-18) of 2018. The EM data were acquired using a frequency-domain Geonics Ltd EM31-MK2 instrument mounted on the sea ice surface in winter and a sledge in late spring. 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 (i.e., Apparent Conductivity (AppCond) and Inphase (Inph)) using the forward modelling and inversion methods of Irvin (2018). Temporal variability in EM measured thicknesses detected the seasonal growth of land-fast sea ice and sub-ice platelet layer in winter, and shorter timescale variability related to strong offshore wind events in winter and the tides in late spring (Brett et al., 2024).
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Supplement to:
Brett, Gemma Marie; Leonard, Gregory H; Rack, Wolfgang; Haas, Christian; Langhorne, Patricia J; Robinson, Natalie J; Irvin, Anne (accepted): Seasonal and diurnal variability of sub-ice platelet layer thickness in McMurdo Sound from electromagnetic induction sounding. https://doi.org/10.5194/egusphere-2023-2724
Related to:
Brett, Gemma Marie; Leonard, Gregory H; Rack, Wolfgang; Irvin, Anne; Haas, Christian; Langhorne, Patricia J; Smith, Inga J (2024): Spring 2018 time-series measurement of land-fast sea ice and sub-ice platelet layer thicknesses from electromagnetic induction soundings in McMurdo Sound, Antarctica. PANGAEA, https://doi.org/10.1594/PANGAEA.968699
Irvin, Anne (2018): Towards Multi-Channel Inversion of Electromagnetic Sea Ice Surveys (PhD thesis). York University, Toronto, Canada, 148 pp, hdl:10315/35925
Project(s):
Funding:
Coverage:
Latitude: -77.867000 * Longitude: 166.655000
Date/Time Start: 2018-08-07T21:00:00 * Date/Time End: 2018-10-27T00:00:00
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Brett, Gemma Marie | Geocode | ||
| 2 | Temperature, air | TTT | °C | Brett, Gemma Marie | Temperature sensor, Campbell Scientific | |
| 3 | Conductivity, apparent | AppCond | mS/m | Brett, Gemma Marie | Ground-based electromagnetic induction (GEM) | |
| 4 | In-phase component | In-phase | ppt | Brett, Gemma Marie | Ground-based electromagnetic induction (GEM) | |
| 5 | Sea ice thickness | EsEs | m | Brett, Gemma Marie | ||
| 6 | Sub-ice platelet-layer thickness | SIPL | m | Brett, Gemma Marie |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
6815 data points
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