90cde9d9-bc80-41d4-8102-d3d0bb58a029 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 2019-12-11 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 Observations of supraglacial lakes on the Larsen B ice shelf in the decades before it collapsed, 1979-2002 2019-12-11 creation 2019-12-11 revision 2019-12-11 publication 2019-12-11 released 1.0 https://doi.org/10.5285/90cde9d9-bc80-41d4-8102-d3d0bb58a029 doi GB/NERC/BAS/PDC/01282 https://data.bas.ac.uk/ EP/R01860X/1 award Please cite this item as: Leeson, A., Foster, E., & Rice, A. (2020). Observations of supraglacial lakes on the Larsen B ice shelf in the decades before it collapsed, 1979-2002 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/90cde9d9-bc80-41d4-8102-d3d0bb58a029 This dataset provides the data produced as part of the work published in: Leeson, A. A., Foster, E., Rice, A., Gourmelen, N. and van Wessem, J. M.. 2019. 'Evolution of supraglacial lakes on the Larsen B ice shelf in the decades before it collapsed' Geophysical Research Letters. It includes 1) shapefiles of supraglacial lakes mapped in both optical (Landsat) and SAR (ERS) satellite imagery, 2) rasters of lake depth, derived from Landsat TM and ETM+ images acquired in 1988 and 2000 and 3) shapefiles of the study area considered in the paper. Funding was provided by ERPSRC grant EP/R01860X/1. No credit. completed Leeson, Amber Lancaster University Researcher author Foster, Elliott Lancaster University Researcher author Rice, Amiee Lancaster University 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 > Glaciers/Ice Sheets > Glacier Topography/Ice Sheet Topography EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Ice Sheets EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Topography/Ice Sheet Topography EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Ice Sheets EARTH SCIENCE > Spectral/Engineering > Visible Wavelengths > Visible Imagery EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets 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 Antarctica Larsen B observations supraglacial lakes theme Larsen B ice shelf Antarctica place Elevation Hydrography 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 This data is supplied under Open Government Licence v3.0 otherRestrictions No restrictions apply. url url crossReference textTable eng utf8 geoscientificInformation imageryBaseMapsEarthCover inlandWaters -62.0 -60.0 -66.0 -65.0 1988-01-19 2002-02-21 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 image/tiff application/octet-stream bytes 44249907 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=90cde9d9-bc80-41d4-8102-d3d0bb58a029 WWW:LINK-1.0-http--link Get Data Download data download bytes 44249907 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=90cde9d9-bc80-41d4-8102-d3d0bb58a029 WWW:LINK-1.0-http--link Get Data Download data download bytes 44249907 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=90cde9d9-bc80-41d4-8102-d3d0bb58a029 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: In order to compare lake characteristics between years, ERS data are radiometrically calibrated and georeferenced. SGLs are then manually delineated in ERS and automatically and manually delineated in Landsat . We quantify uncertainty associated with using two different sensors by digitizing lakes in a 52 km2 sample area in Landsat and ERS images acquired 2 days apart. We find that 7% more lakes are identified in ERS images, lakes are 16% larger on average in Landsat and cover an 8% greater area. Data collection: Horizontal resolution is nominally 30 m, since this is the resolution of the satellite imagery from which the data is derived. See Leeson et al., 2019 for details. Data quality: Data are derived from all available, high quality satellite images acquired between November and March during 1979 and 2002 over the LBIS. These data are 8 optical satellite images acquired for 7 separate years by NASA/USGS's Landsat series and 13 Synthetic Aperture Radar (SAR) images acquired for 6 separate years by ESA's European Remote Sensing (ERS) platforms. asNeeded completed