GEM-2 combined snow and ice thickness during a floe-scale walk on station PS81/503_GPS1

DOI

Combined snow and ice thickness from a multifrequency electromagnetic induction instrument (GEM-2), see Hunkeler et al. (2015) for details.

Coordinates:============X and Y coordinates are relative to a GPS base station installed on each floe. Coordinates were determined using post-processing kinematic GPS (PPK-GPS), and corrected for floe ration and drift. Coordinates of measurements inside the laser scanning area were particularly carefully processed to collocate measurements as accurately as possible (within a few cm). The vertical height above sea level in the TLS data was determined by using reflectors on poles. Upon installation of these reflector poles, the ice was drilled through and the height of the reflector above sea level was determined. For details, see Wever et al. (2021).On the floe scale walk, magnaprobe coordinates have been equally processed as in the laser scanning area. However, for the GEM-2 instrument, the position of the magnaprobe was taken for the corresponding time stamp in the GEM-2 data. Since the GEM-2 instrument was following the Magnaprobe surveyor with a few m distance, this leads to less precise positioning. However, the GEM-2 instrument also has a footprint of similar order of magnitude (see Hunkeler et al., 2015).Coordinate reference points:============================All coordinates are relative to GPS base station 1, in a local coordinate system where X and Y coordinates align with easting and northing, respectively, from the respective UTM Zone at a specific point in time. The respective coordinates of GPS base station 1 for this dataset are:For PS81/503: Location of GPS base station 1, July 8 2013, 1646 UTC:WGS84 : latitude=-67.188921 longitude=-13.219895 UTM Zone 28S : northing=2546456 easting=577005

Identifier
DOI https://doi.org/10.1594/PANGAEA.933558
Related Identifier IsPartOf https://doi.org/10.1594/PANGAEA.933584
Related Identifier References https://doi.org/10.1017/jog.2021.54
Related Identifier IsDocumentedBy https://doi.org/10.1190/geo2015-0130.1
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.933558
Provenance
Creator Wever, Nander ORCID logo; White, Seth; Hunkeler, Priska A; Maksym, Ted; Leonard, Katherine C
Publisher PANGAEA
Publication Year 2021
Funding Reference National Science Foundation https://doi.org/10.13039/100000001 Crossref Funder ID OPP-1142075 https://www.nsf.gov/awardsearch/showAward?AWD_ID=1142075 Role of Snow Distribution Processes in Antarctic Sea Ice Mass Balance; National Science Foundation https://doi.org/10.13039/100000001 Crossref Funder ID OPP-1341513 https://www.nsf.gov/awardsearch/showAward?AWD_ID=1341513 Collaborative Research: Seasonal Sea Ice Production in the Ross Sea, Antarctica; Swiss National Science Foundation https://doi.org/10.13039/501100001711 Crossref Funder ID 142684 https://data.snf.ch/grants/grant/142684 Antarctic precipitation, snow accumulation processes, and ice-ocean interactions; Swiss National Science Foundation https://doi.org/10.13039/501100001711 Crossref Funder ID 172299 https://data.snf.ch/grants/grant/172299 Spatial variability of snow on sea ice: where does it originate from and how does it impact the sea ice mass balance?
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 15930 data points
Discipline Earth System Research
Spatial Coverage (-13.220 LON, -67.189 LAT)