1adf30fe-126c-4fde-8805-315b47911dbf eng utf8 dataset dataset NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom polardatacentre@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact 2022-07-04 ISO 19115 Geographic Information - Metadata ISO 19115:2003(E) European Petroleum Survey Group (EPSG) Geodetic Parameter Registry 2008-11-12 publication European Petroleum Survey Group EPSGadministrator@iogp.org https://www.epsg-registry.org/ EPSG Geodetic Parameter Dataset The EPSG Geodetic Parameter Dataset is a structured dataset of Coordinate Reference Systems and Coordinate Transformations, accessible through this online registry. information publisher urn:ogc:def:crs:EPSG::3031 6.18.3 Ice Tracker data of Arctic sea ice during the MOSAiC expedition 2020-2021 2022-07-04 creation 2022-07-04 revision 2022-07-04 publication 2022-07-04 released 1.0 https://doi.org/10.5285/1adf30fe-126c-4fde-8805-315b47911dbf doi GB/NERC/BAS/PDC/01649 https://data.bas.ac.uk/ NE/S002545/1 award Please cite this item as: Hwang, B., & MOSAiC Ice Team. (2022). Ice Tracker data of Arctic sea ice during the MOSAiC expedition 2020-2021 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/1adf30fe-126c-4fde-8805-315b47911dbf 20 Ice Trackers were deployed at the MOSAiC drifting site. The deployment of the trackers was made from the helicopter onboard RV Polarstern during Leg 5 of the expedition. The data contain the GPS positioning of the trackers (and the motion of the ice on which the trackers were deployed). The data record starts from early September 2020 and lasted until July 2021 for the longest-surviving trackers. The trackers started their drift near the North Pole and move to the south through the Fram Strait. The deployment of the trackers was done in collaboration with the MOSAiC ice team. This work was funded by NERC MOSAiC program NE/S002545/1. No credit. completed Hwang, Byongjun University of Huddersfield Researcher author MOSAiC ice team Researcher author NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact asNeeded completed EARTH SCIENCE > Cryosphere > Sea Ice > Ice Deformation EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Motion EARTH SCIENCE > Oceans > Sea Ice > Ice Deformation EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Motion theme Global Change Master Directory (GCMD) Science Keywords 2026-01-27 publication 23 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Greenbelt MD United States of America https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Arctic GPS MOSAiC deformation ice drift ice dynamics sea ice theme Arctic Ocean Arctic place Oceanographic geographical features theme GEMET - INSPIRE themes, version 1.0 2021-01-06 revision otherRestrictions no limitations to public access otherRestrictions no limitations license Open Government Licence v3.0 otherRestrictions Data supplied under Open Government Licence v3.0 otherRestrictions No restrictions apply. url url largerWorkCitation url url largerWorkCitation url url crossReference textTable eng utf8 geoscientificInformation oceans -30.0 120.0 75.0 90.0 2020-09-02 2021-07-16 It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk. NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information distributor text/plain text/csv bytes 6501171 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=1adf30fe-126c-4fde-8805-315b47911dbf WWW:LINK-1.0-http--link Get Data Download data download bytes 6501171 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=1adf30fe-126c-4fde-8805-315b47911dbf WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Ice trackers were manufactured by Pacific Gyre (www.pacificgyre.com). The trackers are designed to survive harsh environments and ice conditions and are air-deployable at ~40 m or less. The trackers record GPS positioning and are equipped with Iridium 2-way satellite telemetry (the specification of the ice tracker can be found on the Pacific Gyre website, www.pacificgyre.com/ice-tracker.aspx). A total of 20 ice trackers were air-deployed during the Leg 5 of the MOSAiC expedition. The trackers were deployed near the North Pole and drifted to the south through the Fram Strait. The buoy array formed by the trackers ranges from sub-kilometre scale to tens of kilometres and can be used to calculate the strain rates (and the deformation), as well as general ice drift parameters. Data collection: The Ice Trackers were manufactured by Pacific Gyre (www.pacificgyre.com). The data collected in the trackers were transmitted to Pacific Gyre where they stored the data. The raw data files were downloaded from the web interface maintained by Pacific Gyre. The raw files contain the data before the deployment, so the data before the deployment were removed. Data quality: The data quality from the ice trackers can be affected by ice conditions and the position of the trackers. The trackers should be positioned upright to have a clear sky view for satellite reception for GPS and telemetry. Dynamic ice conditions can also affect the data quality and the failure of the trackers, e.g., ridging or deformation events can damage the ice trackers. In this case, the ice trackers stop transmitting the data. Therefore, some trackers were short-lived, while other trackers lasted longer. Some erroneous GPS positioning data can occur due to environmental factors mentioned above. These erroneous GPS positioning data have been removed through manual inspection of latitude and longitude coordinates. The ice trackers use a standard GPS receiver, so the typical positioning error is ~1-3 m. asNeeded completed