Estimation of sea-ice thickness and volume in the Sea of Okhotsk based on ICESat data
Sea-ice thickness in the Sea of Okhotsk is estimated for 2004–2008 from ICESat derived freeboard under the assumption of hydrostatic balance. Total ice thickness including snow depth (htot) averaged over 2004–2008 is 95 cm. The interannual variability of htot is large; from 77.5 cm (2008) to 110.4 c...
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Cambridge University Press
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ftdoajarticles:oai:doaj.org/article:40f34012d988424aa42a8e7886dfab0c 2023-05-15T13:29:36+02:00 Estimation of sea-ice thickness and volume in the Sea of Okhotsk based on ICESat data Sohey Nihashi Nathan T. Kurtz Thorsten Markus Kay I. Ohshima Kazutaka Tateyama Takenobu Toyota 2018-07-01T00:00:00Z https://doi.org/10.1017/aog.2018.8 https://doaj.org/article/40f34012d988424aa42a8e7886dfab0c EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0260305518000083/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2018.8 0260-3055 1727-5644 https://doaj.org/article/40f34012d988424aa42a8e7886dfab0c Annals of Glaciology, Vol 59, Pp 101-111 (2018) remote sensing sea ice sea-ice geophysics Meteorology. Climatology QC851-999 article 2018 ftdoajarticles https://doi.org/10.1017/aog.2018.8 2023-03-12T01:31:57Z Sea-ice thickness in the Sea of Okhotsk is estimated for 2004–2008 from ICESat derived freeboard under the assumption of hydrostatic balance. Total ice thickness including snow depth (htot) averaged over 2004–2008 is 95 cm. The interannual variability of htot is large; from 77.5 cm (2008) to 110.4 cm (2005). The mode of htot varies from 50–60 cm (2007 and 2008) to 70–80 cm (2005). Ice thickness derived from ICESat data is validated from a comparison with that observed by Electromagnetic Induction Instrument (EM) aboard the icebreaker Soya near Hokkaido, Japan. Annual maps of htot reveal that the spatial distribution of htot is similar every year. Ice volume of 6.3 × 1011 m3 is estimated from the ICESat derived htot and AMSR-E derived ice concentration. A comparison with ice area demonstrates that the ice volume cannot always be represented by the area solely, despite the fact that the area has been used as a proxy of the volume in the Sea of Okhotsk. The ice volume roughly corresponds to that of annual ice production in the major coastal polynyas estimated based on heat budget calculations. This also supports the validity of the estimation of sea-ice thickness and volume using ICESat data. Article in Journal/Newspaper Annals of Glaciology Sea ice Directory of Open Access Journals: DOAJ Articles Okhotsk Annals of Glaciology 59 76pt2 101 111 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
remote sensing sea ice sea-ice geophysics Meteorology. Climatology QC851-999 |
spellingShingle |
remote sensing sea ice sea-ice geophysics Meteorology. Climatology QC851-999 Sohey Nihashi Nathan T. Kurtz Thorsten Markus Kay I. Ohshima Kazutaka Tateyama Takenobu Toyota Estimation of sea-ice thickness and volume in the Sea of Okhotsk based on ICESat data |
topic_facet |
remote sensing sea ice sea-ice geophysics Meteorology. Climatology QC851-999 |
description |
Sea-ice thickness in the Sea of Okhotsk is estimated for 2004–2008 from ICESat derived freeboard under the assumption of hydrostatic balance. Total ice thickness including snow depth (htot) averaged over 2004–2008 is 95 cm. The interannual variability of htot is large; from 77.5 cm (2008) to 110.4 cm (2005). The mode of htot varies from 50–60 cm (2007 and 2008) to 70–80 cm (2005). Ice thickness derived from ICESat data is validated from a comparison with that observed by Electromagnetic Induction Instrument (EM) aboard the icebreaker Soya near Hokkaido, Japan. Annual maps of htot reveal that the spatial distribution of htot is similar every year. Ice volume of 6.3 × 1011 m3 is estimated from the ICESat derived htot and AMSR-E derived ice concentration. A comparison with ice area demonstrates that the ice volume cannot always be represented by the area solely, despite the fact that the area has been used as a proxy of the volume in the Sea of Okhotsk. The ice volume roughly corresponds to that of annual ice production in the major coastal polynyas estimated based on heat budget calculations. This also supports the validity of the estimation of sea-ice thickness and volume using ICESat data. |
format |
Article in Journal/Newspaper |
author |
Sohey Nihashi Nathan T. Kurtz Thorsten Markus Kay I. Ohshima Kazutaka Tateyama Takenobu Toyota |
author_facet |
Sohey Nihashi Nathan T. Kurtz Thorsten Markus Kay I. Ohshima Kazutaka Tateyama Takenobu Toyota |
author_sort |
Sohey Nihashi |
title |
Estimation of sea-ice thickness and volume in the Sea of Okhotsk based on ICESat data |
title_short |
Estimation of sea-ice thickness and volume in the Sea of Okhotsk based on ICESat data |
title_full |
Estimation of sea-ice thickness and volume in the Sea of Okhotsk based on ICESat data |
title_fullStr |
Estimation of sea-ice thickness and volume in the Sea of Okhotsk based on ICESat data |
title_full_unstemmed |
Estimation of sea-ice thickness and volume in the Sea of Okhotsk based on ICESat data |
title_sort |
estimation of sea-ice thickness and volume in the sea of okhotsk based on icesat data |
publisher |
Cambridge University Press |
publishDate |
2018 |
url |
https://doi.org/10.1017/aog.2018.8 https://doaj.org/article/40f34012d988424aa42a8e7886dfab0c |
geographic |
Okhotsk |
geographic_facet |
Okhotsk |
genre |
Annals of Glaciology Sea ice |
genre_facet |
Annals of Glaciology Sea ice |
op_source |
Annals of Glaciology, Vol 59, Pp 101-111 (2018) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0260305518000083/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2018.8 0260-3055 1727-5644 https://doaj.org/article/40f34012d988424aa42a8e7886dfab0c |
op_doi |
https://doi.org/10.1017/aog.2018.8 |
container_title |
Annals of Glaciology |
container_volume |
59 |
container_issue |
76pt2 |
container_start_page |
101 |
op_container_end_page |
111 |
_version_ |
1766001410356281344 |