Analysis of East Antarctic drainage basins with altimetric, interferometric, gravity and GPS techniques to determine their state of flux
Metadata record for data from ASAC Project 2788 See the link below for public details on this project. Public This project will reassess the mass balance of Law Dome and a large sector of the Antarctic ice sheet south of Casey by exploiting the time history of change that can be obtained by resurvey...
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Australian Antarctic Data Centre
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Online Access: | https://researchdata.ands.org.au/analysis-east-antarctic-state-flux/700026 https://doi.org/10.4225/15/57BD38F5C317A https://data.aad.gov.au/metadata/records/ASAC_2788 http://nla.gov.au/nla.party-617536 |
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ftands:oai:ands.org.au::700026 2023-05-15T13:46:57+02:00 Analysis of East Antarctic drainage basins with altimetric, interferometric, gravity and GPS techniques to determine their state of flux COLEMAN, RICHARD (hasPrincipalInvestigator) COLEMAN, RICHARD (processor) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-66.0; southlimit=-67.0; westlimit=110.0; eastLimit=111.0; projection=WGS84 Temporal: From 2007-10-01 to 2009-03-31 https://researchdata.ands.org.au/analysis-east-antarctic-state-flux/700026 https://doi.org/10.4225/15/57BD38F5C317A https://data.aad.gov.au/metadata/records/ASAC_2788 http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.ands.org.au/analysis-east-antarctic-state-flux/700026 b1c4a5f1-779b-42c0-88e5-ca07d4f5cad8 doi:10.4225/15/57BD38F5C317A ASAC_2788 https://data.aad.gov.au/metadata/records/ASAC_2788 http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre imageryBaseMapsEarthCover ICE SHEETS EARTH SCIENCE CRYOSPHERE GLACIERS/ICE SHEETS CONTOUR MAPS LAND SURFACE TOPOGRAPHY TERRAIN ELEVATION GEOMORPHIC LANDFORMS/PROCESSES GLACIER THICKNESS/ICE SHEET THICKNESS GPS drainage basins GPS > Global Positioning System GPS RECEIVERS Global Positioning System Satellites CONTINENT > ANTARCTICA GEOGRAPHIC REGION > ARCTIC POLAR dataset ftands https://doi.org/10.4225/15/57BD38F5C317A 2020-01-05T21:17:00Z Metadata record for data from ASAC Project 2788 See the link below for public details on this project. Public This project will reassess the mass balance of Law Dome and a large sector of the Antarctic ice sheet south of Casey by exploiting the time history of change that can be obtained by resurveying historical surface elevation and gravity networks, started in the 1960s. The changes in position and gravity from these terrestrial traverses act as important constraints and, in some cases, calibration for recent satellite altimeter missions. Such a reassessment and model improvement should see a significant drop in the current uncertainty of the contribution of the Antarctic ice sheet to global sea level rise. 2007-2008 Season: Historical and recent data over Law Dome has been successfully re-reduced and integrated with recent satellite data over a period spanning 1962 to 2005. These data show that the surface elevation of Law Dome decreased from 1962 to about 1971 and then generally increased till 2005 indicating that ice volumes have recently varied over decadal time spans. The variations that are present within our gravity data set are in agreement with the deep core stratigraphy results from the Law Dome summit. Since our data cover the full extent of Law Dome, we are able to state with good confidence that the changes we see are consistent with climate-related signals where increased precipitation is due to increased atmospheric water vapour. This phenomenon has been reported in the Norwegian Arctic. The detection of these localised complex changes, over decadal time scales , highlights problems associated with interpreting relatively short time scale altimetric measurements. Dataset Antarc* Antarctic Antarctica Arctic Ice Sheet Research Data Australia (Australian National Data Service - ANDS) Arctic Antarctic The Antarctic Law Dome ENVELOPE(112.833,112.833,-66.733,-66.733) Law Dome Summit ENVELOPE(112.833,112.833,-66.733,-66.733) ENVELOPE(110.0,111.0,-66.0,-67.0) |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
imageryBaseMapsEarthCover ICE SHEETS EARTH SCIENCE CRYOSPHERE GLACIERS/ICE SHEETS CONTOUR MAPS LAND SURFACE TOPOGRAPHY TERRAIN ELEVATION GEOMORPHIC LANDFORMS/PROCESSES GLACIER THICKNESS/ICE SHEET THICKNESS GPS drainage basins GPS > Global Positioning System GPS RECEIVERS Global Positioning System Satellites CONTINENT > ANTARCTICA GEOGRAPHIC REGION > ARCTIC POLAR |
spellingShingle |
imageryBaseMapsEarthCover ICE SHEETS EARTH SCIENCE CRYOSPHERE GLACIERS/ICE SHEETS CONTOUR MAPS LAND SURFACE TOPOGRAPHY TERRAIN ELEVATION GEOMORPHIC LANDFORMS/PROCESSES GLACIER THICKNESS/ICE SHEET THICKNESS GPS drainage basins GPS > Global Positioning System GPS RECEIVERS Global Positioning System Satellites CONTINENT > ANTARCTICA GEOGRAPHIC REGION > ARCTIC POLAR Analysis of East Antarctic drainage basins with altimetric, interferometric, gravity and GPS techniques to determine their state of flux |
topic_facet |
imageryBaseMapsEarthCover ICE SHEETS EARTH SCIENCE CRYOSPHERE GLACIERS/ICE SHEETS CONTOUR MAPS LAND SURFACE TOPOGRAPHY TERRAIN ELEVATION GEOMORPHIC LANDFORMS/PROCESSES GLACIER THICKNESS/ICE SHEET THICKNESS GPS drainage basins GPS > Global Positioning System GPS RECEIVERS Global Positioning System Satellites CONTINENT > ANTARCTICA GEOGRAPHIC REGION > ARCTIC POLAR |
description |
Metadata record for data from ASAC Project 2788 See the link below for public details on this project. Public This project will reassess the mass balance of Law Dome and a large sector of the Antarctic ice sheet south of Casey by exploiting the time history of change that can be obtained by resurveying historical surface elevation and gravity networks, started in the 1960s. The changes in position and gravity from these terrestrial traverses act as important constraints and, in some cases, calibration for recent satellite altimeter missions. Such a reassessment and model improvement should see a significant drop in the current uncertainty of the contribution of the Antarctic ice sheet to global sea level rise. 2007-2008 Season: Historical and recent data over Law Dome has been successfully re-reduced and integrated with recent satellite data over a period spanning 1962 to 2005. These data show that the surface elevation of Law Dome decreased from 1962 to about 1971 and then generally increased till 2005 indicating that ice volumes have recently varied over decadal time spans. The variations that are present within our gravity data set are in agreement with the deep core stratigraphy results from the Law Dome summit. Since our data cover the full extent of Law Dome, we are able to state with good confidence that the changes we see are consistent with climate-related signals where increased precipitation is due to increased atmospheric water vapour. This phenomenon has been reported in the Norwegian Arctic. The detection of these localised complex changes, over decadal time scales , highlights problems associated with interpreting relatively short time scale altimetric measurements. |
author2 |
COLEMAN, RICHARD (hasPrincipalInvestigator) COLEMAN, RICHARD (processor) Australian Antarctic Data Centre (publisher) |
format |
Dataset |
title |
Analysis of East Antarctic drainage basins with altimetric, interferometric, gravity and GPS techniques to determine their state of flux |
title_short |
Analysis of East Antarctic drainage basins with altimetric, interferometric, gravity and GPS techniques to determine their state of flux |
title_full |
Analysis of East Antarctic drainage basins with altimetric, interferometric, gravity and GPS techniques to determine their state of flux |
title_fullStr |
Analysis of East Antarctic drainage basins with altimetric, interferometric, gravity and GPS techniques to determine their state of flux |
title_full_unstemmed |
Analysis of East Antarctic drainage basins with altimetric, interferometric, gravity and GPS techniques to determine their state of flux |
title_sort |
analysis of east antarctic drainage basins with altimetric, interferometric, gravity and gps techniques to determine their state of flux |
publisher |
Australian Antarctic Data Centre |
url |
https://researchdata.ands.org.au/analysis-east-antarctic-state-flux/700026 https://doi.org/10.4225/15/57BD38F5C317A https://data.aad.gov.au/metadata/records/ASAC_2788 http://nla.gov.au/nla.party-617536 |
op_coverage |
Spatial: northlimit=-66.0; southlimit=-67.0; westlimit=110.0; eastLimit=111.0; projection=WGS84 Temporal: From 2007-10-01 to 2009-03-31 |
long_lat |
ENVELOPE(112.833,112.833,-66.733,-66.733) ENVELOPE(112.833,112.833,-66.733,-66.733) ENVELOPE(110.0,111.0,-66.0,-67.0) |
geographic |
Arctic Antarctic The Antarctic Law Dome Law Dome Summit |
geographic_facet |
Arctic Antarctic The Antarctic Law Dome Law Dome Summit |
genre |
Antarc* Antarctic Antarctica Arctic Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica Arctic Ice Sheet |
op_source |
Australian Antarctic Data Centre |
op_relation |
https://researchdata.ands.org.au/analysis-east-antarctic-state-flux/700026 b1c4a5f1-779b-42c0-88e5-ca07d4f5cad8 doi:10.4225/15/57BD38F5C317A ASAC_2788 https://data.aad.gov.au/metadata/records/ASAC_2788 http://nla.gov.au/nla.party-617536 |
op_doi |
https://doi.org/10.4225/15/57BD38F5C317A |
_version_ |
1766245876258308096 |