Instruments and Methods Snow density for measuring surface mass balance using the stake method
A measure of snow density is required to estimate water equivalent ice-sheet surface mass balance (SMB) from stake measurements. Previous studies have utilized the snow density at different depths within the snow. By considering the snow densification process in the time interval between stake heigh...
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International Glaciological Society
2007
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ftkitamiit:oai:kitami-it.repo.nii.ac.jp:00008393 2023-05-15T14:02:16+02:00 Instruments and Methods Snow density for measuring surface mass balance using the stake method Takahashi, Shuhei Kameda, Takao 2007-12 application/pdf https://kitami-it.repo.nii.ac.jp/record/8393/files/Takahashi+and+Kameda+J+Glaciol_2007(j06j107).pdf eng eng International Glaciological Society Journal of Glaciology 183 53 677 684 https://kitami-it.repo.nii.ac.jp/record/8393/files/Takahashi+and+Kameda+J+Glaciol_2007(j06j107).pdf @ 2007 International Glaciological Society open access 2007 ftkitamiit 2023-02-26T09:14:57Z A measure of snow density is required to estimate water equivalent ice-sheet surface mass balance (SMB) from stake measurements. Previous studies have utilized the snow density at different depths within the snow. By considering the snow densification process in the time interval between stake height measurements, we find that use of the snow density at the base of the stake is more appropriate. We assume the stakes are firmly anchored at the bottom and that Sorge's law holds, i.e. the density?depth profile does not change with time. Applying this method to the data for 36 snow stakes on Dome Fuji, the SMB in 2003 was 36.5 kg m?2 a?1, 27% larger than the previous estimate, which used surface snow density. Correct selection of the snow density for SMB estimations is important, especially for Antarctic inland areas where accumulation is low (e.g. Dome Fuji, Vostok, Dome C and South Pole) and where the snow density near the surface varies markedly. journal article Other/Unknown Material Antarc* Antarctic Ice Sheet Journal of Glaciology South pole South pole Kitami Institute of Technology Repository (KIT-R) Antarctic Dome Fuji ENVELOPE(39.700,39.700,-77.317,-77.317) South Pole |
institution |
Open Polar |
collection |
Kitami Institute of Technology Repository (KIT-R) |
op_collection_id |
ftkitamiit |
language |
English |
description |
A measure of snow density is required to estimate water equivalent ice-sheet surface mass balance (SMB) from stake measurements. Previous studies have utilized the snow density at different depths within the snow. By considering the snow densification process in the time interval between stake height measurements, we find that use of the snow density at the base of the stake is more appropriate. We assume the stakes are firmly anchored at the bottom and that Sorge's law holds, i.e. the density?depth profile does not change with time. Applying this method to the data for 36 snow stakes on Dome Fuji, the SMB in 2003 was 36.5 kg m?2 a?1, 27% larger than the previous estimate, which used surface snow density. Correct selection of the snow density for SMB estimations is important, especially for Antarctic inland areas where accumulation is low (e.g. Dome Fuji, Vostok, Dome C and South Pole) and where the snow density near the surface varies markedly. journal article |
author |
Takahashi, Shuhei Kameda, Takao |
spellingShingle |
Takahashi, Shuhei Kameda, Takao Instruments and Methods Snow density for measuring surface mass balance using the stake method |
author_facet |
Takahashi, Shuhei Kameda, Takao |
author_sort |
Takahashi, Shuhei |
title |
Instruments and Methods Snow density for measuring surface mass balance using the stake method |
title_short |
Instruments and Methods Snow density for measuring surface mass balance using the stake method |
title_full |
Instruments and Methods Snow density for measuring surface mass balance using the stake method |
title_fullStr |
Instruments and Methods Snow density for measuring surface mass balance using the stake method |
title_full_unstemmed |
Instruments and Methods Snow density for measuring surface mass balance using the stake method |
title_sort |
instruments and methods snow density for measuring surface mass balance using the stake method |
publisher |
International Glaciological Society |
publishDate |
2007 |
url |
https://kitami-it.repo.nii.ac.jp/record/8393/files/Takahashi+and+Kameda+J+Glaciol_2007(j06j107).pdf |
long_lat |
ENVELOPE(39.700,39.700,-77.317,-77.317) |
geographic |
Antarctic Dome Fuji South Pole |
geographic_facet |
Antarctic Dome Fuji South Pole |
genre |
Antarc* Antarctic Ice Sheet Journal of Glaciology South pole South pole |
genre_facet |
Antarc* Antarctic Ice Sheet Journal of Glaciology South pole South pole |
op_relation |
Journal of Glaciology 183 53 677 684 https://kitami-it.repo.nii.ac.jp/record/8393/files/Takahashi+and+Kameda+J+Glaciol_2007(j06j107).pdf |
op_rights |
@ 2007 International Glaciological Society open access |
_version_ |
1766272421697945600 |