d246642f-65fd-426f-8819-2d176e6db90f 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 2020-11-20 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 Simulated ice thickness, supraglacial debris thickness and velocity for Khumbu Glacier, Nepal, using the iSOSIA ice-flow model - VERSION 1.0 2020-11-20 creation 2020-11-20 revision 2020-11-20 publication 2020-11-20 released 1.0 https://doi.org/10.5285/d246642f-65fd-426f-8819-2d176e6db90f doi GB/NERC/BAS/PDC/01435 https://data.bas.ac.uk/ NE/P00265X/1 award Please cite this item as: Rowan, A. (2020). Simulated ice thickness, supraglacial debris thickness and velocity for Khumbu Glacier, Nepal, using the iSOSIA ice-flow model - VERSION 1.0 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/d246642f-65fd-426f-8819-2d176e6db90f Simulated ice thickness (ice, metres), supraglacial debris thickness (dh, metres) and velocity (velocity, metres per year) for Khumbu Glacier, Nepal, produced using the iSOSIA ice-flow model presented in Rowan et al. (in revision, Journal of Geophysical Research-Earth Surface). The files contained in this collection present the outputs from three experiments: Experiment 1, six files, three simulations showing the effect of change in mean annual air temperature to the present day from 1.5 degC to 3.5 degC relative to the Little Ice Age. Experiment 2, four files, two simulations showing the effect of change in the h0 constant describing the reduction in sub-debris melt with debris thickness. Experiment 3, four files, two simulations, showing the effect of change in mean annual air temperature to the present day from 2.5 degC to 3.5 degC relative to the Little Ice Age where h0 = 1.1 m. Results from the optimal simulation, nine files, one simulation, showing results for simulated ice thickness, supraglacial debris thickness and glacier velocity for the Little Ice Age, 1984 CE and 2015 CE. Funding was provided by the NERC grant NE/P00265X/1. ***** PLEASE BE ADVISED TO USE VERSION 2.0 DATA ***** The VERSION 2.0 data set (see 'Related Data Set Metadata' link below) differs from that presented here in Version 1.0 in that the h0 values were revised based on a maximum debris thickness of 2.0 m (compared to 4.0 m in Version 1.0) and the simulations of the active glacier extent were not part of Version 1.0. No credit. completed Rowan, Ann University of Sheffield 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 > Ablation Zones/Accumulation Zones EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Mass Balance/Ice Sheet Mass Balance EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Motion/Ice Sheet Motion EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Thickness/Ice Sheet Thickness EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Topography/Ice Sheet Topography EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glaciers 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 Everest region Himalaya glacier dynamics glacier model mass balance mountain glacier theme Khumbu Glacier, Himalaya Nepal place Elevation 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. doi doi crossReference url url crossReference url url largerWorkCitation doi doi crossReference textTable eng utf8 climatologyMeteorologyAtmosphere elevation geoscientificInformation imageryBaseMapsEarthCover 86.805 86.805 27.932 27.932 1984-01-01 1984-12-31 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 bytes 5557453 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=d246642f-65fd-426f-8819-2d176e6db90f WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Model outputs were created using the iSOSIA ice-flow model version spm-3.3.3 to simulate the feedback between debris thickness, ice flow and mass balance. This model version is presented and described in detail in Rowan et al. (2015, Earth and Planetary Science Letters; https://doi.org/10.1016/j.epsl.2015.09.004). Data collection: iSOSIA ice-flow model version spm-3.3.3 Data quality: The glacier model outputs are transient conditions collected from simulations made over longer periods. The higher-order iSOSIA model (Egholm et al., 2011, Journal of Geophysical Research-Earth Surface) was implemented using a 100-m grid spacing and forced by elevation-dependent accumulation and ablation gradients, modified where supraglacial debris was simulated to give a reduction in sub-debris melt equivalent to that found for a positively-skewed distribution of debris thickness (h0 = 1.1 m). For further details of the mass balance scheme, see Rowan et al. (in review, Journal of Geophysical Research-Earth Surface). asNeeded completed