Snow and ice surfaces on King George Island (Antarctic Peninsula) with high-resolution TerraSAR-X time series, with links to shapfiles and GeoTIFFs
Changes of glaciers and snow cover in polar regions affect a wide range of physical and ecosystem processes on land and in the adjacent marine environment. In this study, we investigate the potential of 11-day repeat high-resolution satellite image time series from the TerraSAR-X mission to derive g...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.853954 2023-05-15T14:03:05+02:00 Snow and ice surfaces on King George Island (Antarctic Peninsula) with high-resolution TerraSAR-X time series, with links to shapfiles and GeoTIFFs Falk, Ulrike Gieseke, Hilke Kotzur, Franziska Braun, Matthias Holger LATITUDE: -62.022000 * LONGITUDE: -58.294000 2015-10-14 text/tab-separated-values, 16 data points https://doi.pangaea.de/10.1594/PANGAEA.853954 https://doi.org/10.1594/PANGAEA.853954 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.853954 https://doi.org/10.1594/PANGAEA.853954 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Falk, Ulrike; Gieseke, Hilke; Kotzur, Franziska; Braun, Matthias Holger (2015): Monitoring snow and ice surfaces on King George Island, Antarctic Peninsula, with high-resolution TerraSAR-X time series. Antarctic Science, 15 pp, https://doi.org/10.1017/S0954102015000577 File content File format File size IMCOAST/IMCONet Impact of climate induced glacier melt on marine coastal systems Antarctica King_George_Island King George Island Antarctic Peninsula Uniform resource locator/link to file Dataset 2015 ftpangaea https://doi.org/10.1594/PANGAEA.853954 https://doi.org/10.1017/S0954102015000577 2023-01-20T09:06:24Z Changes of glaciers and snow cover in polar regions affect a wide range of physical and ecosystem processes on land and in the adjacent marine environment. In this study, we investigate the potential of 11-day repeat high-resolution satellite image time series from the TerraSAR-X mission to derive glaciological and hydrological parameters on King George Island, Antarctica during the period Oct/25/2010 to Apr/19/2011. The spatial pattern and temporal evolution of snow cover extent on ice-free areas can be monitored using multi-temporal coherence images. SAR coherence is used to map glacier extent of land terminating glaciers with an average accuracy of 25 m. Multi-temporal SAR color composites identify the position of the late summer snow line at about 220 m above sea level. Glacier surface velocities are obtained from intensity feature-tracking. Surface velocities near the calving front of Fourcade Glacier were up to 1.8 ± 0.01 m/d. Using an intercept theorem based on fundamental geometric principles together with differential GPS field measurements, the ice discharge of Fourcade Glacier was estimated to 20700 ± 5500 m**3/d (corresponding to ~19 ± 5 kt/d). The rapidly changing surface conditions on King George Island and the lack of high-resolution digital elevation models for the region remain restrictions for the applicability of SAR data and the precision of derived products. Dataset Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica King George Island PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Antarctic Peninsula King George Island Fourcade ENVELOPE(-62.490,-62.490,-64.612,-64.612) Fourcade Glacier ENVELOPE(-58.666,-58.666,-62.216,-62.216) ENVELOPE(-58.294000,-58.294000,-62.022000,-62.022000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
File content File format File size IMCOAST/IMCONet Impact of climate induced glacier melt on marine coastal systems Antarctica King_George_Island King George Island Antarctic Peninsula Uniform resource locator/link to file |
spellingShingle |
File content File format File size IMCOAST/IMCONet Impact of climate induced glacier melt on marine coastal systems Antarctica King_George_Island King George Island Antarctic Peninsula Uniform resource locator/link to file Falk, Ulrike Gieseke, Hilke Kotzur, Franziska Braun, Matthias Holger Snow and ice surfaces on King George Island (Antarctic Peninsula) with high-resolution TerraSAR-X time series, with links to shapfiles and GeoTIFFs |
topic_facet |
File content File format File size IMCOAST/IMCONet Impact of climate induced glacier melt on marine coastal systems Antarctica King_George_Island King George Island Antarctic Peninsula Uniform resource locator/link to file |
description |
Changes of glaciers and snow cover in polar regions affect a wide range of physical and ecosystem processes on land and in the adjacent marine environment. In this study, we investigate the potential of 11-day repeat high-resolution satellite image time series from the TerraSAR-X mission to derive glaciological and hydrological parameters on King George Island, Antarctica during the period Oct/25/2010 to Apr/19/2011. The spatial pattern and temporal evolution of snow cover extent on ice-free areas can be monitored using multi-temporal coherence images. SAR coherence is used to map glacier extent of land terminating glaciers with an average accuracy of 25 m. Multi-temporal SAR color composites identify the position of the late summer snow line at about 220 m above sea level. Glacier surface velocities are obtained from intensity feature-tracking. Surface velocities near the calving front of Fourcade Glacier were up to 1.8 ± 0.01 m/d. Using an intercept theorem based on fundamental geometric principles together with differential GPS field measurements, the ice discharge of Fourcade Glacier was estimated to 20700 ± 5500 m**3/d (corresponding to ~19 ± 5 kt/d). The rapidly changing surface conditions on King George Island and the lack of high-resolution digital elevation models for the region remain restrictions for the applicability of SAR data and the precision of derived products. |
format |
Dataset |
author |
Falk, Ulrike Gieseke, Hilke Kotzur, Franziska Braun, Matthias Holger |
author_facet |
Falk, Ulrike Gieseke, Hilke Kotzur, Franziska Braun, Matthias Holger |
author_sort |
Falk, Ulrike |
title |
Snow and ice surfaces on King George Island (Antarctic Peninsula) with high-resolution TerraSAR-X time series, with links to shapfiles and GeoTIFFs |
title_short |
Snow and ice surfaces on King George Island (Antarctic Peninsula) with high-resolution TerraSAR-X time series, with links to shapfiles and GeoTIFFs |
title_full |
Snow and ice surfaces on King George Island (Antarctic Peninsula) with high-resolution TerraSAR-X time series, with links to shapfiles and GeoTIFFs |
title_fullStr |
Snow and ice surfaces on King George Island (Antarctic Peninsula) with high-resolution TerraSAR-X time series, with links to shapfiles and GeoTIFFs |
title_full_unstemmed |
Snow and ice surfaces on King George Island (Antarctic Peninsula) with high-resolution TerraSAR-X time series, with links to shapfiles and GeoTIFFs |
title_sort |
snow and ice surfaces on king george island (antarctic peninsula) with high-resolution terrasar-x time series, with links to shapfiles and geotiffs |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.853954 https://doi.org/10.1594/PANGAEA.853954 |
op_coverage |
LATITUDE: -62.022000 * LONGITUDE: -58.294000 |
long_lat |
ENVELOPE(-62.490,-62.490,-64.612,-64.612) ENVELOPE(-58.666,-58.666,-62.216,-62.216) ENVELOPE(-58.294000,-58.294000,-62.022000,-62.022000) |
geographic |
Antarctic Antarctic Peninsula King George Island Fourcade Fourcade Glacier |
geographic_facet |
Antarctic Antarctic Peninsula King George Island Fourcade Fourcade Glacier |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica King George Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica King George Island |
op_source |
Supplement to: Falk, Ulrike; Gieseke, Hilke; Kotzur, Franziska; Braun, Matthias Holger (2015): Monitoring snow and ice surfaces on King George Island, Antarctic Peninsula, with high-resolution TerraSAR-X time series. Antarctic Science, 15 pp, https://doi.org/10.1017/S0954102015000577 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.853954 https://doi.org/10.1594/PANGAEA.853954 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.853954 https://doi.org/10.1017/S0954102015000577 |
_version_ |
1766273590329606144 |