Snow-pit measurements on Atka Bay landfast sea ice during ANT-Land 2012/2013 season ...
Up to now, snow cover on Antarctic sea ice and its impact on radar backscatter, particularly after the onset of freeze/thaw processes, are not well understood. Here we present a combined analysis of in situ observations of snow properties from the landfast sea ice in Atka Bay, Antarctica, and high-r...
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ftdatacite:10.1594/pangaea.848914 2023-10-01T03:52:14+02:00 Snow-pit measurements on Atka Bay landfast sea ice during ANT-Land 2012/2013 season ... Paul, Stephan Willmes, Sascha Hoppmann, Mario Hunkeler, Priska A Wesche, Christine Nicolaus, Marcel Heinemann, Günther Timmermann, Ralph 2015 application/zip https://dx.doi.org/10.1594/pangaea.848914 https://doi.pangaea.de/10.1594/PANGAEA.848914 en eng PANGAEA https://dx.doi.org/10.3189/2015aog69a715 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Supplementary Publication Series of Datasets article Collection 2015 ftdatacite https://doi.org/10.1594/pangaea.84891410.3189/2015aog69a715 2023-09-04T14:52:34Z Up to now, snow cover on Antarctic sea ice and its impact on radar backscatter, particularly after the onset of freeze/thaw processes, are not well understood. Here we present a combined analysis of in situ observations of snow properties from the landfast sea ice in Atka Bay, Antarctica, and high-resolution TerraSAR-X backscatter data, for the transition from austral spring (November 2012) to summer (January 2013). The physical changes in the seasonal snow cover during that time are reflected in the evolution of TerraSAR-X backscatter. We are able to explain 76-93% of the spatio-temporal variability of the TerraSAR-X backscatter signal with up to four snowpack parameters with a root-mean-squared error of 0.87-1.62 dB, using a simple multiple linear model. Over the complete study, and especially after the onset of early-melt processes and freeze/thaw cycles, the majority of variability in the backscatter is influenced by changes in snow/ice interface temperature, snow depth and top-layer grain size. This ... : Measurements were obtained doing classical snow pits at several fixed measurement sites along an East-West transect of Atka Bay (ATKA03-ATKA24). Additionally, several off-transect snow pits were recorded (SNOW01-SNOW04). Measurments were done on an undisturbed shaded working wall of the snow pit. ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic Sea ice DataCite Metadata Store (German National Library of Science and Technology) Antarctic Arctic Atka ENVELOPE(151.789,151.789,60.835,60.835) Austral |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
spellingShingle |
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Paul, Stephan Willmes, Sascha Hoppmann, Mario Hunkeler, Priska A Wesche, Christine Nicolaus, Marcel Heinemann, Günther Timmermann, Ralph Snow-pit measurements on Atka Bay landfast sea ice during ANT-Land 2012/2013 season ... |
topic_facet |
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
description |
Up to now, snow cover on Antarctic sea ice and its impact on radar backscatter, particularly after the onset of freeze/thaw processes, are not well understood. Here we present a combined analysis of in situ observations of snow properties from the landfast sea ice in Atka Bay, Antarctica, and high-resolution TerraSAR-X backscatter data, for the transition from austral spring (November 2012) to summer (January 2013). The physical changes in the seasonal snow cover during that time are reflected in the evolution of TerraSAR-X backscatter. We are able to explain 76-93% of the spatio-temporal variability of the TerraSAR-X backscatter signal with up to four snowpack parameters with a root-mean-squared error of 0.87-1.62 dB, using a simple multiple linear model. Over the complete study, and especially after the onset of early-melt processes and freeze/thaw cycles, the majority of variability in the backscatter is influenced by changes in snow/ice interface temperature, snow depth and top-layer grain size. This ... : Measurements were obtained doing classical snow pits at several fixed measurement sites along an East-West transect of Atka Bay (ATKA03-ATKA24). Additionally, several off-transect snow pits were recorded (SNOW01-SNOW04). Measurments were done on an undisturbed shaded working wall of the snow pit. ... |
format |
Article in Journal/Newspaper |
author |
Paul, Stephan Willmes, Sascha Hoppmann, Mario Hunkeler, Priska A Wesche, Christine Nicolaus, Marcel Heinemann, Günther Timmermann, Ralph |
author_facet |
Paul, Stephan Willmes, Sascha Hoppmann, Mario Hunkeler, Priska A Wesche, Christine Nicolaus, Marcel Heinemann, Günther Timmermann, Ralph |
author_sort |
Paul, Stephan |
title |
Snow-pit measurements on Atka Bay landfast sea ice during ANT-Land 2012/2013 season ... |
title_short |
Snow-pit measurements on Atka Bay landfast sea ice during ANT-Land 2012/2013 season ... |
title_full |
Snow-pit measurements on Atka Bay landfast sea ice during ANT-Land 2012/2013 season ... |
title_fullStr |
Snow-pit measurements on Atka Bay landfast sea ice during ANT-Land 2012/2013 season ... |
title_full_unstemmed |
Snow-pit measurements on Atka Bay landfast sea ice during ANT-Land 2012/2013 season ... |
title_sort |
snow-pit measurements on atka bay landfast sea ice during ant-land 2012/2013 season ... |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://dx.doi.org/10.1594/pangaea.848914 https://doi.pangaea.de/10.1594/PANGAEA.848914 |
long_lat |
ENVELOPE(151.789,151.789,60.835,60.835) |
geographic |
Antarctic Arctic Atka Austral |
geographic_facet |
Antarctic Arctic Atka Austral |
genre |
Antarc* Antarctic Antarctica Arctic Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Arctic Sea ice |
op_relation |
https://dx.doi.org/10.3189/2015aog69a715 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.84891410.3189/2015aog69a715 |
_version_ |
1778518053065064448 |