Reducing Spatial Uncertainty: Stratigraphy of Antarctic Firn Resolved by High-Resolution Penetrometry
Precise measurements of snow structural parameters are crucial to understand snow stratigraphy and its formation by deposition and metamorphism. However, most snow measurements are limited in spatial and temporal resolution, and an important limiting factor is often the time needed to make measureme...
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ftawi:oai:epic.awi.de:37203 2023-05-15T13:40:26+02:00 Reducing Spatial Uncertainty: Stratigraphy of Antarctic Firn Resolved by High-Resolution Penetrometry Proksch, Martin Schneebeli, Martin Weißbach, Stefanie Löwe, Henning 2013-12-09 https://epic.awi.de/id/eprint/37203/ https://hdl.handle.net/10013/epic.44890 unknown Proksch, M. , Schneebeli, M. , Weißbach, S. and Löwe, H. (2013) Reducing Spatial Uncertainty: Stratigraphy of Antarctic Firn Resolved by High-Resolution Penetrometry , AGU fall meeting, san francisco, 9 December 2013 - 13 December 2013 . hdl:10013/epic.44890 EPIC3AGU fall meeting, san francisco, 2013-12-09-2013-12-13 Conference notRev 2013 ftawi 2021-12-24T15:40:12Z Precise measurements of snow structural parameters are crucial to understand snow stratigraphy and its formation by deposition and metamorphism. However, most snow measurements are limited in spatial and temporal resolution, and an important limiting factor is often the time needed to make measurements. We demonstrate the potential of a high-resolution penetrometer by the stratigraphy of a 25 m long and 1.1 m deep transect through the snow and firn at Kohnen Station, Antarctica. We used a statistical model that extracts three major snow structural parameters, density (rho), correlation length (lex) and specific surface area (SSA). We could show using independent measurements from the site that the statistical model is indeed sufficient. The two-dimensional plots reveal the depositional and metamorphic events clearly. Based on these data, we are able to make a much more complete interpretation of the stratigraphic evolution at Kohnen Station. SnowMicroPen derived density of a 1.10 m deep and 25 m long snow and firn transect at Kohnen Station, Antarctica, measured in December 2012. Conference Object Antarc* Antarctic Antarctica Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Kohnen ENVELOPE(0.000,0.000,-75.000,-75.000) Kohnen Station ENVELOPE(0.000,0.000,-75.000,-75.000) Rho ENVELOPE(-63.000,-63.000,-64.300,-64.300) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
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description |
Precise measurements of snow structural parameters are crucial to understand snow stratigraphy and its formation by deposition and metamorphism. However, most snow measurements are limited in spatial and temporal resolution, and an important limiting factor is often the time needed to make measurements. We demonstrate the potential of a high-resolution penetrometer by the stratigraphy of a 25 m long and 1.1 m deep transect through the snow and firn at Kohnen Station, Antarctica. We used a statistical model that extracts three major snow structural parameters, density (rho), correlation length (lex) and specific surface area (SSA). We could show using independent measurements from the site that the statistical model is indeed sufficient. The two-dimensional plots reveal the depositional and metamorphic events clearly. Based on these data, we are able to make a much more complete interpretation of the stratigraphic evolution at Kohnen Station. SnowMicroPen derived density of a 1.10 m deep and 25 m long snow and firn transect at Kohnen Station, Antarctica, measured in December 2012. |
format |
Conference Object |
author |
Proksch, Martin Schneebeli, Martin Weißbach, Stefanie Löwe, Henning |
spellingShingle |
Proksch, Martin Schneebeli, Martin Weißbach, Stefanie Löwe, Henning Reducing Spatial Uncertainty: Stratigraphy of Antarctic Firn Resolved by High-Resolution Penetrometry |
author_facet |
Proksch, Martin Schneebeli, Martin Weißbach, Stefanie Löwe, Henning |
author_sort |
Proksch, Martin |
title |
Reducing Spatial Uncertainty: Stratigraphy of Antarctic Firn Resolved by High-Resolution Penetrometry |
title_short |
Reducing Spatial Uncertainty: Stratigraphy of Antarctic Firn Resolved by High-Resolution Penetrometry |
title_full |
Reducing Spatial Uncertainty: Stratigraphy of Antarctic Firn Resolved by High-Resolution Penetrometry |
title_fullStr |
Reducing Spatial Uncertainty: Stratigraphy of Antarctic Firn Resolved by High-Resolution Penetrometry |
title_full_unstemmed |
Reducing Spatial Uncertainty: Stratigraphy of Antarctic Firn Resolved by High-Resolution Penetrometry |
title_sort |
reducing spatial uncertainty: stratigraphy of antarctic firn resolved by high-resolution penetrometry |
publishDate |
2013 |
url |
https://epic.awi.de/id/eprint/37203/ https://hdl.handle.net/10013/epic.44890 |
long_lat |
ENVELOPE(0.000,0.000,-75.000,-75.000) ENVELOPE(0.000,0.000,-75.000,-75.000) ENVELOPE(-63.000,-63.000,-64.300,-64.300) |
geographic |
Antarctic Kohnen Kohnen Station Rho |
geographic_facet |
Antarctic Kohnen Kohnen Station Rho |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
EPIC3AGU fall meeting, san francisco, 2013-12-09-2013-12-13 |
op_relation |
Proksch, M. , Schneebeli, M. , Weißbach, S. and Löwe, H. (2013) Reducing Spatial Uncertainty: Stratigraphy of Antarctic Firn Resolved by High-Resolution Penetrometry , AGU fall meeting, san francisco, 9 December 2013 - 13 December 2013 . hdl:10013/epic.44890 |
_version_ |
1766134348893913088 |