Surface elevation changes of the northern Antarctic Peninsula Ice Sheet (<70°S) derived from repeat bi-static SAR acquisitions for the period 2013-2017
Some of the highest specific mass change rates in Antarctica are reported for the Antarctic Peninsula. However, the existing estimates for the northern Antarctic Peninsula (<70°S) are either spatially limited or are affected by considerable uncertainties. The complex topography, frequent cloud co...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.964536 2024-06-23T07:47:56+00:00 Surface elevation changes of the northern Antarctic Peninsula Ice Sheet (<70°S) derived from repeat bi-static SAR acquisitions for the period 2013-2017 Seehaus, Thorsten Sommer, Christian Malz, Philipp Dethinne, Thomas MEDIAN LATITUDE: -66.500000 * MEDIAN LONGITUDE: -62.500000 * SOUTH-BOUND LATITUDE: -70.000000 * WEST-BOUND LONGITUDE: -69.000000 * NORTH-BOUND LATITUDE: -63.000000 * EAST-BOUND LONGITUDE: -56.000000 * DATE/TIME START: 2013-01-01T00:00:00 * DATE/TIME END: 2017-12-31T23:59:59 2024 text/tab-separated-values, 8 data points https://doi.pangaea.de/10.1594/PANGAEA.964536 https://doi.org/10.1594/PANGAEA.964536 en eng PANGAEA Silva, Aline Barbosa; Arigony-Neto, Jorge; Braun, Matthias Holger; Espinoza, Jean Marcel Almeida; Costi, Juliana; Jaña, Ricardo (2020): Spatial and temporal analysis of changes in the glaciers of the Antarctic Peninsula. Global and Planetary Change, 184, 103079, https://doi.org/10.1016/j.gloplacha.2019.103079 https://doi.pangaea.de/10.1594/PANGAEA.964536 https://doi.org/10.1594/PANGAEA.964536 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Antarctic_Peninsula_Ice_Sheet_2013-2017 Antarctic Peninsula File content geodetic mass balance InSAR Raster graphic GeoTIFF format GeoTIFF format (File Size) GeoTIFF format (MD5 Hash) remote sensing SAT Satellite remote sensing TanDEM-X Dataset 2024 ftpangaea https://doi.org/10.1594/PANGAEA.96453610.1016/j.gloplacha.2019.103079 2024-06-12T14:17:12Z Some of the highest specific mass change rates in Antarctica are reported for the Antarctic Peninsula. However, the existing estimates for the northern Antarctic Peninsula (<70°S) are either spatially limited or are affected by considerable uncertainties. The complex topography, frequent cloud cover, limitations in ice thickness information, boundary effects, and uncertain glacial-isostatic adjustment estimates affect the ice sheet mass change estimates using altimetry, gravimetry, or the input-output method. Within this study, the first assessment of the geodetic mass balance throughout the ice sheet of the northern Antarctic Peninsula is carried out employing bi-static SAR data from the TanDEM-X satellite mission. Repeat coverages from austral-winters 2013 and 2017 are employed. Overall coverage of 96.4% of the study area by surface elevation change measurements and a total mass budget of -24.1±2.8 Gt/a is revealed. The spatial distribution of the surface elevation and mass changes points out, that the former ice shelf tributary glaciers of the Prince-Gustav-Channel, Larsen-A&B, and Wordie ice shelves are the hotpots of ice loss in the study area, and highlights the long-lasting dynamic glacier adjustments after the ice shelf break-up events. The highest mass change rate is revealed for the Airy-Seller-Fleming glacier system of -4.9±0.6 Gt/a and the highest average surface elevation change rate of -2.30±0.03 m/a is observed at Drygalski Glacier. The obtained results provide information on ice surface elevation and mass changes for the entire northern Antarctic Peninsula on unprecedented spatially detailed scales and high precision, and will be beneficial for subsequent analysis and modeling. Dataset Antarc* Antarctic Antarctic Peninsula Antarctica Drygalski Glacier Ice Sheet Ice Shelf Ice Shelves PANGAEA - Data Publisher for Earth & Environmental Science Antarctic The Antarctic Antarctic Peninsula Austral Drygalski ENVELOPE(-61.000,-61.000,-64.717,-64.717) Wordie ENVELOPE(-67.500,-67.500,-69.167,-69.167) Prince Gustav Channel ENVELOPE(-58.250,-58.250,-63.833,-63.833) Fleming Glacier ENVELOPE(-66.183,-66.183,-69.467,-69.467) Drygalski Glacier ENVELOPE(-61.000,-61.000,-64.716,-64.716) ENVELOPE(-69.000000,-56.000000,-63.000000,-70.000000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Antarctic_Peninsula_Ice_Sheet_2013-2017 Antarctic Peninsula File content geodetic mass balance InSAR Raster graphic GeoTIFF format GeoTIFF format (File Size) GeoTIFF format (MD5 Hash) remote sensing SAT Satellite remote sensing TanDEM-X |
spellingShingle |
Antarctic_Peninsula_Ice_Sheet_2013-2017 Antarctic Peninsula File content geodetic mass balance InSAR Raster graphic GeoTIFF format GeoTIFF format (File Size) GeoTIFF format (MD5 Hash) remote sensing SAT Satellite remote sensing TanDEM-X Seehaus, Thorsten Sommer, Christian Malz, Philipp Dethinne, Thomas Surface elevation changes of the northern Antarctic Peninsula Ice Sheet (<70°S) derived from repeat bi-static SAR acquisitions for the period 2013-2017 |
topic_facet |
Antarctic_Peninsula_Ice_Sheet_2013-2017 Antarctic Peninsula File content geodetic mass balance InSAR Raster graphic GeoTIFF format GeoTIFF format (File Size) GeoTIFF format (MD5 Hash) remote sensing SAT Satellite remote sensing TanDEM-X |
description |
Some of the highest specific mass change rates in Antarctica are reported for the Antarctic Peninsula. However, the existing estimates for the northern Antarctic Peninsula (<70°S) are either spatially limited or are affected by considerable uncertainties. The complex topography, frequent cloud cover, limitations in ice thickness information, boundary effects, and uncertain glacial-isostatic adjustment estimates affect the ice sheet mass change estimates using altimetry, gravimetry, or the input-output method. Within this study, the first assessment of the geodetic mass balance throughout the ice sheet of the northern Antarctic Peninsula is carried out employing bi-static SAR data from the TanDEM-X satellite mission. Repeat coverages from austral-winters 2013 and 2017 are employed. Overall coverage of 96.4% of the study area by surface elevation change measurements and a total mass budget of -24.1±2.8 Gt/a is revealed. The spatial distribution of the surface elevation and mass changes points out, that the former ice shelf tributary glaciers of the Prince-Gustav-Channel, Larsen-A&B, and Wordie ice shelves are the hotpots of ice loss in the study area, and highlights the long-lasting dynamic glacier adjustments after the ice shelf break-up events. The highest mass change rate is revealed for the Airy-Seller-Fleming glacier system of -4.9±0.6 Gt/a and the highest average surface elevation change rate of -2.30±0.03 m/a is observed at Drygalski Glacier. The obtained results provide information on ice surface elevation and mass changes for the entire northern Antarctic Peninsula on unprecedented spatially detailed scales and high precision, and will be beneficial for subsequent analysis and modeling. |
format |
Dataset |
author |
Seehaus, Thorsten Sommer, Christian Malz, Philipp Dethinne, Thomas |
author_facet |
Seehaus, Thorsten Sommer, Christian Malz, Philipp Dethinne, Thomas |
author_sort |
Seehaus, Thorsten |
title |
Surface elevation changes of the northern Antarctic Peninsula Ice Sheet (<70°S) derived from repeat bi-static SAR acquisitions for the period 2013-2017 |
title_short |
Surface elevation changes of the northern Antarctic Peninsula Ice Sheet (<70°S) derived from repeat bi-static SAR acquisitions for the period 2013-2017 |
title_full |
Surface elevation changes of the northern Antarctic Peninsula Ice Sheet (<70°S) derived from repeat bi-static SAR acquisitions for the period 2013-2017 |
title_fullStr |
Surface elevation changes of the northern Antarctic Peninsula Ice Sheet (<70°S) derived from repeat bi-static SAR acquisitions for the period 2013-2017 |
title_full_unstemmed |
Surface elevation changes of the northern Antarctic Peninsula Ice Sheet (<70°S) derived from repeat bi-static SAR acquisitions for the period 2013-2017 |
title_sort |
surface elevation changes of the northern antarctic peninsula ice sheet (<70°s) derived from repeat bi-static sar acquisitions for the period 2013-2017 |
publisher |
PANGAEA |
publishDate |
2024 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.964536 https://doi.org/10.1594/PANGAEA.964536 |
op_coverage |
MEDIAN LATITUDE: -66.500000 * MEDIAN LONGITUDE: -62.500000 * SOUTH-BOUND LATITUDE: -70.000000 * WEST-BOUND LONGITUDE: -69.000000 * NORTH-BOUND LATITUDE: -63.000000 * EAST-BOUND LONGITUDE: -56.000000 * DATE/TIME START: 2013-01-01T00:00:00 * DATE/TIME END: 2017-12-31T23:59:59 |
long_lat |
ENVELOPE(-61.000,-61.000,-64.717,-64.717) ENVELOPE(-67.500,-67.500,-69.167,-69.167) ENVELOPE(-58.250,-58.250,-63.833,-63.833) ENVELOPE(-66.183,-66.183,-69.467,-69.467) ENVELOPE(-61.000,-61.000,-64.716,-64.716) ENVELOPE(-69.000000,-56.000000,-63.000000,-70.000000) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Austral Drygalski Wordie Prince Gustav Channel Fleming Glacier Drygalski Glacier |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Austral Drygalski Wordie Prince Gustav Channel Fleming Glacier Drygalski Glacier |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Drygalski Glacier Ice Sheet Ice Shelf Ice Shelves |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Drygalski Glacier Ice Sheet Ice Shelf Ice Shelves |
op_relation |
Silva, Aline Barbosa; Arigony-Neto, Jorge; Braun, Matthias Holger; Espinoza, Jean Marcel Almeida; Costi, Juliana; Jaña, Ricardo (2020): Spatial and temporal analysis of changes in the glaciers of the Antarctic Peninsula. Global and Planetary Change, 184, 103079, https://doi.org/10.1016/j.gloplacha.2019.103079 https://doi.pangaea.de/10.1594/PANGAEA.964536 https://doi.org/10.1594/PANGAEA.964536 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.96453610.1016/j.gloplacha.2019.103079 |
_version_ |
1802638210126315520 |