Vertical snow structures from local to regional scale
Snow on sea ice alters the properties of the underlying ice cover as well as associated exchange processes at the interfaces between atmosphere, sea ice, and ocean. As Antarctic snow cover persists during most of the year, it contributes significantly to the sea-ice mass budget due to comprehensive...
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ftawi:oai:epic.awi.de:48744 2023-05-15T13:45:21+02:00 Vertical snow structures from local to regional scale Arndt, Stefanie Stoll, Nicolas Paul, Stephan 2018 application/pdf https://epic.awi.de/id/eprint/48744/ https://epic.awi.de/id/eprint/48744/1/20180623_polar2018_snow_talk_sarndt.pdf https://hdl.handle.net/10013/epic.01a0a52b-12e5-499c-9149-d2cc07519b3c https://hdl.handle.net/ unknown https://epic.awi.de/id/eprint/48744/1/20180623_polar2018_snow_talk_sarndt.pdf https://hdl.handle.net/ Arndt, S. orcid:0000-0001-9782-3844 , Stoll, N. orcid:0000-0002-3219-8395 and Paul, S. orcid:0000-0002-5136-714X (2018) Vertical snow structures from local to regional scale , Polar2018, Davos, Switzerland, 19 June 2018 - 23 June 2018 . hdl:10013/epic.01a0a52b-12e5-499c-9149-d2cc07519b3c EPIC3Polar2018, Davos, Switzerland, 2018-06-19-2018-06-23 Conference notRev 2018 ftawi 2021-12-24T15:44:25Z Snow on sea ice alters the properties of the underlying ice cover as well as associated exchange processes at the interfaces between atmosphere, sea ice, and ocean. As Antarctic snow cover persists during most of the year, it contributes significantly to the sea-ice mass budget due to comprehensive physical (seasonal) transition processes within the snowpack. It is therefore necessary to locate and quantify internal snowmelt, snow metamorphism, and snow-ice formation in the Antarctic snowpack on different spatial scales. Doing so, we present here in-situ observations of physical snow properties from point measurements and transect lines during recent expeditions in the Weddell Sea from 2013 to 2018, covering summer and winter conditions. Analysis of snow pit measurements on both small (<100m) and floe-size (<2km) scales reveal significant variations in the horizontal snowpack structure. In order to describe internal snow processes on regional scales, we grouped the observed snow conditions, differentiating for snow conditions between eastern (seasonal sea ice) and western Weddell Sea (perennial sea ice). While the thick perennial snowpack is highly metamorphous with a large number of internal layers, the seasonal snowpack is less stratified. Results of the study will improve our understanding on processes and interactions in the snowpack as well as at the snow/ice interface associated with seasonal and inter-annual variations in the sea-ice mass budget of the Southern Ocean. Conference Object Antarc* Antarctic Sea ice Southern Ocean Weddell Sea Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Southern Ocean The Antarctic Weddell Sea Weddell |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Snow on sea ice alters the properties of the underlying ice cover as well as associated exchange processes at the interfaces between atmosphere, sea ice, and ocean. As Antarctic snow cover persists during most of the year, it contributes significantly to the sea-ice mass budget due to comprehensive physical (seasonal) transition processes within the snowpack. It is therefore necessary to locate and quantify internal snowmelt, snow metamorphism, and snow-ice formation in the Antarctic snowpack on different spatial scales. Doing so, we present here in-situ observations of physical snow properties from point measurements and transect lines during recent expeditions in the Weddell Sea from 2013 to 2018, covering summer and winter conditions. Analysis of snow pit measurements on both small (<100m) and floe-size (<2km) scales reveal significant variations in the horizontal snowpack structure. In order to describe internal snow processes on regional scales, we grouped the observed snow conditions, differentiating for snow conditions between eastern (seasonal sea ice) and western Weddell Sea (perennial sea ice). While the thick perennial snowpack is highly metamorphous with a large number of internal layers, the seasonal snowpack is less stratified. Results of the study will improve our understanding on processes and interactions in the snowpack as well as at the snow/ice interface associated with seasonal and inter-annual variations in the sea-ice mass budget of the Southern Ocean. |
format |
Conference Object |
author |
Arndt, Stefanie Stoll, Nicolas Paul, Stephan |
spellingShingle |
Arndt, Stefanie Stoll, Nicolas Paul, Stephan Vertical snow structures from local to regional scale |
author_facet |
Arndt, Stefanie Stoll, Nicolas Paul, Stephan |
author_sort |
Arndt, Stefanie |
title |
Vertical snow structures from local to regional scale |
title_short |
Vertical snow structures from local to regional scale |
title_full |
Vertical snow structures from local to regional scale |
title_fullStr |
Vertical snow structures from local to regional scale |
title_full_unstemmed |
Vertical snow structures from local to regional scale |
title_sort |
vertical snow structures from local to regional scale |
publishDate |
2018 |
url |
https://epic.awi.de/id/eprint/48744/ https://epic.awi.de/id/eprint/48744/1/20180623_polar2018_snow_talk_sarndt.pdf https://hdl.handle.net/10013/epic.01a0a52b-12e5-499c-9149-d2cc07519b3c https://hdl.handle.net/ |
geographic |
Antarctic Southern Ocean The Antarctic Weddell Sea Weddell |
geographic_facet |
Antarctic Southern Ocean The Antarctic Weddell Sea Weddell |
genre |
Antarc* Antarctic Sea ice Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean Weddell Sea |
op_source |
EPIC3Polar2018, Davos, Switzerland, 2018-06-19-2018-06-23 |
op_relation |
https://epic.awi.de/id/eprint/48744/1/20180623_polar2018_snow_talk_sarndt.pdf https://hdl.handle.net/ Arndt, S. orcid:0000-0001-9782-3844 , Stoll, N. orcid:0000-0002-3219-8395 and Paul, S. orcid:0000-0002-5136-714X (2018) Vertical snow structures from local to regional scale , Polar2018, Davos, Switzerland, 19 June 2018 - 23 June 2018 . hdl:10013/epic.01a0a52b-12e5-499c-9149-d2cc07519b3c |
_version_ |
1766221445098110976 |