Arctic Sea Ice Concentration Assimilation in an Operational Global 1/10° Ocean Forecast System
To understand the Arctic environment, which is closely related to sea ice and to reduce potential risks, reliable sea ice forecasts are indispensable. A practical, lightweight yet effective assimilation scheme of sea ice concentration based on Optimal Interpolation is designed and adopted in an oper...
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Online Access: | https://doi.org/10.3390/rs15051274 https://doaj.org/article/0aed6332bf8a46328eec9f9fe26bb6df |
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ftdoajarticles:oai:doaj.org/article:0aed6332bf8a46328eec9f9fe26bb6df 2023-05-15T14:53:41+02:00 Arctic Sea Ice Concentration Assimilation in an Operational Global 1/10° Ocean Forecast System Qiuli Shao Qi Shu Bin Xiao Lujun Zhang Xunqiang Yin Fangli Qiao 2023-02-01T00:00:00Z https://doi.org/10.3390/rs15051274 https://doaj.org/article/0aed6332bf8a46328eec9f9fe26bb6df EN eng MDPI AG https://www.mdpi.com/2072-4292/15/5/1274 https://doaj.org/toc/2072-4292 doi:10.3390/rs15051274 2072-4292 https://doaj.org/article/0aed6332bf8a46328eec9f9fe26bb6df Remote Sensing, Vol 15, Iss 1274, p 1274 (2023) sea ice concentration data assimilation global ocean forecasting system Science Q article 2023 ftdoajarticles https://doi.org/10.3390/rs15051274 2023-03-12T01:28:58Z To understand the Arctic environment, which is closely related to sea ice and to reduce potential risks, reliable sea ice forecasts are indispensable. A practical, lightweight yet effective assimilation scheme of sea ice concentration based on Optimal Interpolation is designed and adopted in an operational global 1/10° surface wave-tide-circulation coupled ocean model (FIO-COM10) forecasting system to improve Arctic sea ice forecasting. Twin numerical experiments with and without data assimilation are designed for the simulation of the year 2019, and 5-day real-time forecasts for 2021 are implemented to study the sea ice forecast ability. The results show that the large biases in the simulation and forecast of sea ice concentration are remarkably reduced due to satellite observation uncertainty levels by data assimilation, indicating the high efficiency of the data assimilation scheme. The most significant improvement occurs in the marginal ice zones. The sea surface temperature bias averaged over the marginal ice zones is also reduced by 0.9 °C. Sea ice concentration assimilation has a profound effect on improving forecasting ability. The Root Mean Square Error and Integrated Ice-Edge Error are reduced to the level of the independent satellite observation at least for 24-h forecast, and sea ice forecast by FIO-COM10 has better performance than the persistence forecasts in summer and autumn. Article in Journal/Newspaper Arctic Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Remote Sensing 15 5 1274 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
sea ice concentration data assimilation global ocean forecasting system Science Q |
spellingShingle |
sea ice concentration data assimilation global ocean forecasting system Science Q Qiuli Shao Qi Shu Bin Xiao Lujun Zhang Xunqiang Yin Fangli Qiao Arctic Sea Ice Concentration Assimilation in an Operational Global 1/10° Ocean Forecast System |
topic_facet |
sea ice concentration data assimilation global ocean forecasting system Science Q |
description |
To understand the Arctic environment, which is closely related to sea ice and to reduce potential risks, reliable sea ice forecasts are indispensable. A practical, lightweight yet effective assimilation scheme of sea ice concentration based on Optimal Interpolation is designed and adopted in an operational global 1/10° surface wave-tide-circulation coupled ocean model (FIO-COM10) forecasting system to improve Arctic sea ice forecasting. Twin numerical experiments with and without data assimilation are designed for the simulation of the year 2019, and 5-day real-time forecasts for 2021 are implemented to study the sea ice forecast ability. The results show that the large biases in the simulation and forecast of sea ice concentration are remarkably reduced due to satellite observation uncertainty levels by data assimilation, indicating the high efficiency of the data assimilation scheme. The most significant improvement occurs in the marginal ice zones. The sea surface temperature bias averaged over the marginal ice zones is also reduced by 0.9 °C. Sea ice concentration assimilation has a profound effect on improving forecasting ability. The Root Mean Square Error and Integrated Ice-Edge Error are reduced to the level of the independent satellite observation at least for 24-h forecast, and sea ice forecast by FIO-COM10 has better performance than the persistence forecasts in summer and autumn. |
format |
Article in Journal/Newspaper |
author |
Qiuli Shao Qi Shu Bin Xiao Lujun Zhang Xunqiang Yin Fangli Qiao |
author_facet |
Qiuli Shao Qi Shu Bin Xiao Lujun Zhang Xunqiang Yin Fangli Qiao |
author_sort |
Qiuli Shao |
title |
Arctic Sea Ice Concentration Assimilation in an Operational Global 1/10° Ocean Forecast System |
title_short |
Arctic Sea Ice Concentration Assimilation in an Operational Global 1/10° Ocean Forecast System |
title_full |
Arctic Sea Ice Concentration Assimilation in an Operational Global 1/10° Ocean Forecast System |
title_fullStr |
Arctic Sea Ice Concentration Assimilation in an Operational Global 1/10° Ocean Forecast System |
title_full_unstemmed |
Arctic Sea Ice Concentration Assimilation in an Operational Global 1/10° Ocean Forecast System |
title_sort |
arctic sea ice concentration assimilation in an operational global 1/10° ocean forecast system |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/rs15051274 https://doaj.org/article/0aed6332bf8a46328eec9f9fe26bb6df |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
Remote Sensing, Vol 15, Iss 1274, p 1274 (2023) |
op_relation |
https://www.mdpi.com/2072-4292/15/5/1274 https://doaj.org/toc/2072-4292 doi:10.3390/rs15051274 2072-4292 https://doaj.org/article/0aed6332bf8a46328eec9f9fe26bb6df |
op_doi |
https://doi.org/10.3390/rs15051274 |
container_title |
Remote Sensing |
container_volume |
15 |
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5 |
container_start_page |
1274 |
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1766325270974824448 |