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Hoppmann, Mario; Nicolaus, Marcel; Asseng, Jölund (2012): Ground-based electromagnetic (EM) sea-ice thickness retrieval and parallel snow depth measurements on Atka Bay landfast sea ice in 2011 at profile EM31_20111118. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.789123

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Related to:
Hoppmann, Mario; Nicolaus, Marcel; Asseng, Jölund (2012): Summary of AFIN Measurements on Atka Bay Landfast Sea Ice in 2011. Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany, 31 pp, hdl:10013/epic.39903.d001
Funding:
German Research Foundation (DFG), grant/award no. 5472008: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Coverage:
Median Latitude: -70.595506 * Median Longitude: -7.771522 * South-bound Latitude: -70.620857 * West-bound Longitude: -8.137583 * North-bound Latitude: -70.574367 * East-bound Longitude: -7.454653
Date/Time Start: 2011-11-18T13:49:01 * Date/Time End: 2011-11-18T17:17:03
Minimum POINT DISTANCE from start: 0.0 m * Maximum POINT DISTANCE from start: 26521.9 m
Event(s):
Atka_Bay * Latitude Start: -70.519900 * Longitude Start: -8.175800 * Latitude End: -70.677400 * Longitude End: -7.447500 * Location: Atka Bay * Method/Device: Observation (OBSE)
Comment:
Electromagnetic measurements of combined sea-ice thickness and snow depth were performed on the landfast sea ice of Atka Bay, Antarctica.
The data were obtained by an EM31 (Geonics) mounted in a kayak and pulled behind a snowmobile along a predefined transect.
The EM31 was operated in Vertical CoPlanar (VCP) mode, where the coil plane is oriented perpendicular to the surface. The measured apparent conductivity was calibrated against combined sea-ice thickness and snow depth in the field and the resulting curve was approximated by an exponential function.
As the electromagnetic measurements only yield the combined sea ice thickness and snow depth, additional ruler-stick measurements of snow depth were recorded in parallel.
These observations contribute to the Antarctic Fast Ice Network (AFIN).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DATE/TIMEDate/TimeGeocode
2LATITUDELatitudeGeocode
3LONGITUDELongitudeGeocode
4POINT DISTANCE from startDistmGeocode
5Sea ice thicknessEsEsmNicolaus, MarcelElectromagnetic sounding (EM), Geonics EM31 conductivity sensor, Haas et al 1997ice and snow
6Snow thicknessSnow thickmNicolaus, MarcelRuler stick (RULER)
Size:
7393 data points

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