On the retrieval of ice sheet temperature by using SMOS observations ...
<!--!introduction!--> The internal temperature is a key parameter for the ice sheet dynamics. Up to now temperature profile was available in few boreholes or from glaciological models. Macelloni et al. (2019) performed the first retrieval of the ice sheet temperature in Antarctica by using the...
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GFZ German Research Centre for Geosciences
2023
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ftdatacite:10.57757/iugg23-1661 2023-07-23T04:14:30+02:00 On the retrieval of ice sheet temperature by using SMOS observations ... Leduc-Leballeur, Marion Ritz, Catherine Macelloni, Giovanni Picard, Ghislain 2023 https://dx.doi.org/10.57757/iugg23-1661 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017965 unknown GFZ German Research Centre for Geosciences Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Article ConferencePaper Oral 2023 ftdatacite https://doi.org/10.57757/iugg23-1661 2023-07-03T16:18:25Z <!--!introduction!--> The internal temperature is a key parameter for the ice sheet dynamics. Up to now temperature profile was available in few boreholes or from glaciological models. Macelloni et al. (2019) performed the first retrieval of the ice sheet temperature in Antarctica by using the European Space Agency (ESA)’s Soil Moisture and Ocean Salinity (SMOS) L-band observations. This is made possible due to the very low absorption of ice and the low scattering by particles (grain size, bubbles in ice) at L-band frequency, which implies a large penetration in the dry snow and ice of several hundreds of meters. Here, we present new estimates of the ice temperature profiles over Antarctica obtained from an improved algorithm. The minimization is based on Bayesian inference, which takes as free parameters: surface ice temperature, snow accumulation and geothermal heat flux. The parameter space investigation is achieved through a Markov Chain Monte Carlo (MCMC) method. A three-dimensional glaciological ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... Conference Object Antarc* Antarctica Ice Sheet DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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<!--!introduction!--> The internal temperature is a key parameter for the ice sheet dynamics. Up to now temperature profile was available in few boreholes or from glaciological models. Macelloni et al. (2019) performed the first retrieval of the ice sheet temperature in Antarctica by using the European Space Agency (ESA)’s Soil Moisture and Ocean Salinity (SMOS) L-band observations. This is made possible due to the very low absorption of ice and the low scattering by particles (grain size, bubbles in ice) at L-band frequency, which implies a large penetration in the dry snow and ice of several hundreds of meters. Here, we present new estimates of the ice temperature profiles over Antarctica obtained from an improved algorithm. The minimization is based on Bayesian inference, which takes as free parameters: surface ice temperature, snow accumulation and geothermal heat flux. The parameter space investigation is achieved through a Markov Chain Monte Carlo (MCMC) method. A three-dimensional glaciological ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
format |
Conference Object |
author |
Leduc-Leballeur, Marion Ritz, Catherine Macelloni, Giovanni Picard, Ghislain |
spellingShingle |
Leduc-Leballeur, Marion Ritz, Catherine Macelloni, Giovanni Picard, Ghislain On the retrieval of ice sheet temperature by using SMOS observations ... |
author_facet |
Leduc-Leballeur, Marion Ritz, Catherine Macelloni, Giovanni Picard, Ghislain |
author_sort |
Leduc-Leballeur, Marion |
title |
On the retrieval of ice sheet temperature by using SMOS observations ... |
title_short |
On the retrieval of ice sheet temperature by using SMOS observations ... |
title_full |
On the retrieval of ice sheet temperature by using SMOS observations ... |
title_fullStr |
On the retrieval of ice sheet temperature by using SMOS observations ... |
title_full_unstemmed |
On the retrieval of ice sheet temperature by using SMOS observations ... |
title_sort |
on the retrieval of ice sheet temperature by using smos observations ... |
publisher |
GFZ German Research Centre for Geosciences |
publishDate |
2023 |
url |
https://dx.doi.org/10.57757/iugg23-1661 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017965 |
genre |
Antarc* Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctica Ice Sheet |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.57757/iugg23-1661 |
_version_ |
1772185297204805632 |