481d4120-1a72-468b-8cd4-84b4e14cdeab 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 2019-11-06 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 RESPONDER: Observations of a supraglacial lake drainage event at Lake 028 on Store Glacier, Greenland, July 2018 2019-11-06 creation 2019-11-06 revision 2019-11-06 publication 2019-11-06 released 1.0 https://doi.org/10.5285/481d4120-1a72-468b-8cd4-84b4e14cdeab doi GB/NERC/BAS/PDC/01255 https://data.bas.ac.uk/ NE/L002507/1 award Please cite this item as: Chudley, T., Doyle, S., Schoonman, C., & Bougamont, M. (2019). RESPONDER: Observations of a supraglacial lake drainage event at Lake 028 on Store Glacier, Greenland, July 2018 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/481d4120-1a72-468b-8cd4-84b4e14cdeab Datasets from the Resolving subglacial properties, hydrological networks and dynamic evolution of ice flow on the Greenland Ice Sheet (RESPONDER) project as published in the paper by Chudley et al. entitled "Supraglacial lake drainage at a fast-flowing Greenlandic outlet glacier". Please cite this paper if using this data. This dataset consists of observations of the rapid drainage of a supraglacial lake on Store Glacier, a marine-terminating outlet glacier of the west Greenland Ice Sheet. 'Lake 028', located 70.57degN, 50.08degW, drained on 2018-07-07 and was recorded using a variety of geophysical instrumentation. The dataset presented here includes all data necessary to replicate the findings presented in the main paper, including UAV photogrammetry-derived raster data (producing a series of orthophotos, digital elevation models, and velocity fields) and time-series records from in-situ geophysical instrumentation (GPS receiver, geophone, and water pressure sensor). Funding was provided by NERC DTP grant NE/L002507/1 and ERC Horizon 2020 grant 683043. No credit. completed Chudley, Thomas University of Cambridge Researcher author Doyle, Samuel Aberystwyth University Researcher author Schoonman, Charlotte University of Cambridge Researcher author Bougamont, Marion University of Cambridge 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 > Glaciers EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Topography/Ice Sheet Topography EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glaciers 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 Greenland glaciology hydrology ice sheets lakes theme Store Glacier Greenland 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 url url largerWorkCitation url url crossReference textTable eng utf8 geoscientificInformation imageryBaseMapsEarthCover inlandWaters -50.111 -50.042 70.522 70.58 2019-09-04 2019-09-24 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 image/tiff bytes 12884901888 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=481d4120-1a72-468b-8cd4-84b4e14cdeab WWW:LINK-1.0-http--link Get Data Download data download bytes 12884901888 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=481d4120-1a72-468b-8cd4-84b4e14cdeab WWW:LINK-1.0-http--link Get Data Download data download bytes 12884901888 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=481d4120-1a72-468b-8cd4-84b4e14cdeab WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: By the 2018-07-07 lake drainage event, Lake 028 was instrumented with a GPS receiver, seismometer, and pressure transducer sensor. A dual-frequency GPS was installed ~600 m upstream of the lake in July 2017, and by July 2018 had advected into a position immediately south of the lake. A seismometer was installed in May 2018, and a water-level sensor on 2018-07-04. From this date, regular UAV surveys (See SI Appendix, Table S1 in associated publication) were performed over the lake and surrounding environments. A detailed description of the data collection, quality control, processing and analysis is given in: Chudley, T.R., Christoffersen, P., Doyle, S. H., Bougamont, M., Schoonman, C. M., Hubbard, B., and James, M. (2019) Supraglacial lake drainage at a fast-flowing Greenlandic outlet glacier. doi:10.1073/pnas.1913685116 Data collection: UAV: Custom-built Skywalker X8 fixed-wing UAV running ArduPlane autopilot software, collecting imagery with a Sony α6000 and GPS data with an Emlid Reach receiver. Images processed in Agisoft Metashape v 1.4.3. Pressure Transducer: Solinst 3001 Levelogger GPS: Trimble NetR7 GPS with Trimble Zephyr Geodetic III Antenna Seismometer: HG-7 geophone recorded to a DiGOS DATA-CUBE Data quality: GPS data have been filtered with a two-pole, low-pass Butterworth filter with a 30-minute cutoff period. This 30-minute window was chosen based on a worst-case horizontal positional uncertainty of 0.035 m and a base ice velocity of ~650 m a-1, following from which assumptions the period over which velocities can be resolved is ~0.5 hours. Uncertainty was calculated based on a conservative estimate of the positional uncertainty of ±1 cm propagated through the velocity calculation. Seismometer data were decimated to 100 sps and a 2-pole, zero-phase bandpass filter (10-50 Hz) was applied to eliminate instrument and high-frequency noise. We assign UAV-derived orthophoto and DEM data uncertainties of ±0.12 m horizontally (~1.1x the ground sampling distance) and ±0.14 m vertically (~1.3x the ground sampling distance), following Chudley et al. (Cryosphere, 13, 955-968, 2019). Uncertainties in the velocity field were calculated based upon a displacement uncertainty of 0.17 m. A detailed description of the data collection, quality control, processing and analysis is given in: Chudley, T.R., Christoffersen, P., Doyle, S. H., Bougamont, M., Schoonman, C. M., Hubbard, B., and James, M. (2019) Supraglacial lake drainage at a fast-flowing Greenlandic outlet glacier. doi:10.1073/pnas.1913685116 asNeeded completed