e3616d28-759e-4cca-8fae-fe398f9552ba 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 2017-10-11 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 Annual melt onset, duration and end dates for the Antarctic Peninsula derived from Quikscat and ASCAT scatterometer Enhanced Resolution data, 1999-2017 2017-10-11 creation 2017-10-11 revision 2017-10-11 publication 2017-10-11 released 1.0 https://doi.org/10.5285/e3616d28-759e-4cca-8fae-fe398f9552ba doi GB/NERC/BAS/PDC/01014 https://data.bas.ac.uk/ NE/L006065/1 award Please cite this item as: Bevan, S., & Luckman, A. (2018). Annual melt onset, duration and end dates for the Antarctic Peninsula derived from Quikscat and ASCAT scatterometer Enhanced Resolution data, 1999-2017 (Version 1.0) [Data set]. Polar Data Centre, Natural Environment Research Council, UK. https://doi.org/10.5285/e3616d28-759e-4cca-8fae-fe398f9552ba Surface melt onset, duration and end date for the Antarctic Peninsula from 1999/2000 to 2016/2017 at a spatial resolution of 2 km, derived from scatterometer data. Years 1999/2000 to 2008/09 are based on QSCAT data and 2009/10 to 2016/17 on ASCAT data. This work was funded by NERC grant NE/L006065/1. No credit. completed Luckman, Adrian Swansea University Researcher author Bevan, Suzanne Swansea 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 Mass Balance/Ice Sheet Mass Balance EARTH SCIENCE > Cryosphere > Snow/Ice > Ice Growth/Melt 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 ASCAT Antarctic Peninsula QSCAT Surface melt theme Antarctic Peninsula Antarctica place Elevation Meteorological 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 This data is governed by the NERC Data Policy: https://www.ukri.org/who-we-are/nerc/our-policies-and-standards/nerc-data-policy/ otherRestrictions This data is governed by the NERC data policy and supplied under Open Government Licence v3.0 otherRestrictions No restrictions apply. url url crossReference doi doi crossReference textTable eng utf8 climatologyMeteorologyAtmosphere environment -79.68 -32.01 -77.65 -59.4 1999-01-01 2017-12-01 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 bytes 1 https://ramadda.data.bas.ac.uk/repository/entry/show/?entryid=e3616d28-759e-4cca-8fae-fe398f9552ba WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Enhanced Resolution scatterometer data were downloaded from the BYU Center for Remote Sensing ftp site (ftp.scp.byu.edu/pub/data/). We used the 'qmsv' QSCAT product (morning, slice, vertically polarizied) and the 'msfa' ASCAT product (all pass, vertically polarized, slice equivalent). The data were processed to identify annual melt onset, duration, and end dates. A melt day is defined when backscatter falls below the previous winter (June, July, August) mean by more than 3 dB (QSCAT), or 2.7 dB (ASCAT). Three consecutive days of melt or refreeze are required to define melt onset or end, respectively. Austral year begins August 1st and onset and end day numbers are relative to this date. Years 1999/2000 to 2008/09 are based on QSCAT data and 2009/10-2016/17 on ASCAT data. Data quality: Melt was not defined if the winter mean backscatter was greater than -10 dB to avoid calculating melt over noisy backscatter regions such as the Peninsula mountains. ASCAT input data were only available until 21/06/2017 but we assume that this allows all melt within austral year 2016/17 to have been detected. 2 km horizontal resolution based on over sampling of 4.5 km scatterometer data. asNeeded completed