Evaluation of Arctic sea ice drift and its dependency on near-surface wind and sea ice conditions in the coupled regional climate model HIRHAM–NAOSIM
We examine the simulated Arctic sea ice drift speed for the period 2003–2014 in the coupled Arctic regional climate model HIRHAM–NAOSIM 2.0. In particular, we evaluate the dependency of the drift speed on the near-surface wind speed and sea ice conditions. Considering the seasonal cycle of the Arcti...
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ftdoajarticles:oai:doaj.org/article:d24bd58e7b0a4968b2d5d69a2fda97bd 2023-05-15T14:29:19+02:00 Evaluation of Arctic sea ice drift and its dependency on near-surface wind and sea ice conditions in the coupled regional climate model HIRHAM–NAOSIM X. Yu A. Rinke W. Dorn G. Spreen C. Lüpkes H. Sumata V. M. Gryanik 2020-05-01T00:00:00Z https://doi.org/10.5194/tc-14-1727-2020 https://doaj.org/article/d24bd58e7b0a4968b2d5d69a2fda97bd EN eng Copernicus Publications https://www.the-cryosphere.net/14/1727/2020/tc-14-1727-2020.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-14-1727-2020 1994-0416 1994-0424 https://doaj.org/article/d24bd58e7b0a4968b2d5d69a2fda97bd The Cryosphere, Vol 14, Pp 1727-1746 (2020) Environmental sciences GE1-350 Geology QE1-996.5 article 2020 ftdoajarticles https://doi.org/10.5194/tc-14-1727-2020 2022-12-31T13:52:39Z We examine the simulated Arctic sea ice drift speed for the period 2003–2014 in the coupled Arctic regional climate model HIRHAM–NAOSIM 2.0. In particular, we evaluate the dependency of the drift speed on the near-surface wind speed and sea ice conditions. Considering the seasonal cycle of the Arctic basin averaged drift speed, the model reproduces the summer–autumn drift speed well but significantly overestimates the winter–spring drift speed, compared to satellite-derived observations. Also, the model does not capture the observed seasonal phase lag between drift and wind speed, but the simulated drift speed is more in phase with the near-surface wind. The model calculates a realistic negative correlation between drift speed and ice thickness and between drift speed and ice concentration during summer–autumn when the ice concentration is relatively low, but the correlation is weaker than observed. A daily grid-scale diagnostic indicates that the model reproduces the observed positive correlation between drift and wind speed. The strongest impact of wind changes on drift speed occurs for high and moderate wind speeds, with a low impact for rather calm conditions. The correlation under low-wind conditions is overestimated in the simulations compared to observation/reanalysis data. A sensitivity experiment demonstrates the significant effects of sea ice form drag from floe edges included by an improved parameterization of the transfer coefficients for momentum and heat over sea ice. However, this does not improve the agreement of the modeled drift speed / wind speed ratio with observations based on reanalysis data for wind and remote sensing data for sea ice drift. An improvement might be achieved by tuning parameters that are not well established by observations. Article in Journal/Newspaper Arctic Basin Arctic Sea ice The Cryosphere Directory of Open Access Journals: DOAJ Articles Arctic The Cryosphere 14 5 1727 1746 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 X. Yu A. Rinke W. Dorn G. Spreen C. Lüpkes H. Sumata V. M. Gryanik Evaluation of Arctic sea ice drift and its dependency on near-surface wind and sea ice conditions in the coupled regional climate model HIRHAM–NAOSIM |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
We examine the simulated Arctic sea ice drift speed for the period 2003–2014 in the coupled Arctic regional climate model HIRHAM–NAOSIM 2.0. In particular, we evaluate the dependency of the drift speed on the near-surface wind speed and sea ice conditions. Considering the seasonal cycle of the Arctic basin averaged drift speed, the model reproduces the summer–autumn drift speed well but significantly overestimates the winter–spring drift speed, compared to satellite-derived observations. Also, the model does not capture the observed seasonal phase lag between drift and wind speed, but the simulated drift speed is more in phase with the near-surface wind. The model calculates a realistic negative correlation between drift speed and ice thickness and between drift speed and ice concentration during summer–autumn when the ice concentration is relatively low, but the correlation is weaker than observed. A daily grid-scale diagnostic indicates that the model reproduces the observed positive correlation between drift and wind speed. The strongest impact of wind changes on drift speed occurs for high and moderate wind speeds, with a low impact for rather calm conditions. The correlation under low-wind conditions is overestimated in the simulations compared to observation/reanalysis data. A sensitivity experiment demonstrates the significant effects of sea ice form drag from floe edges included by an improved parameterization of the transfer coefficients for momentum and heat over sea ice. However, this does not improve the agreement of the modeled drift speed / wind speed ratio with observations based on reanalysis data for wind and remote sensing data for sea ice drift. An improvement might be achieved by tuning parameters that are not well established by observations. |
format |
Article in Journal/Newspaper |
author |
X. Yu A. Rinke W. Dorn G. Spreen C. Lüpkes H. Sumata V. M. Gryanik |
author_facet |
X. Yu A. Rinke W. Dorn G. Spreen C. Lüpkes H. Sumata V. M. Gryanik |
author_sort |
X. Yu |
title |
Evaluation of Arctic sea ice drift and its dependency on near-surface wind and sea ice conditions in the coupled regional climate model HIRHAM–NAOSIM |
title_short |
Evaluation of Arctic sea ice drift and its dependency on near-surface wind and sea ice conditions in the coupled regional climate model HIRHAM–NAOSIM |
title_full |
Evaluation of Arctic sea ice drift and its dependency on near-surface wind and sea ice conditions in the coupled regional climate model HIRHAM–NAOSIM |
title_fullStr |
Evaluation of Arctic sea ice drift and its dependency on near-surface wind and sea ice conditions in the coupled regional climate model HIRHAM–NAOSIM |
title_full_unstemmed |
Evaluation of Arctic sea ice drift and its dependency on near-surface wind and sea ice conditions in the coupled regional climate model HIRHAM–NAOSIM |
title_sort |
evaluation of arctic sea ice drift and its dependency on near-surface wind and sea ice conditions in the coupled regional climate model hirham–naosim |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/tc-14-1727-2020 https://doaj.org/article/d24bd58e7b0a4968b2d5d69a2fda97bd |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Basin Arctic Sea ice The Cryosphere |
genre_facet |
Arctic Basin Arctic Sea ice The Cryosphere |
op_source |
The Cryosphere, Vol 14, Pp 1727-1746 (2020) |
op_relation |
https://www.the-cryosphere.net/14/1727/2020/tc-14-1727-2020.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-14-1727-2020 1994-0416 1994-0424 https://doaj.org/article/d24bd58e7b0a4968b2d5d69a2fda97bd |
op_doi |
https://doi.org/10.5194/tc-14-1727-2020 |
container_title |
The Cryosphere |
container_volume |
14 |
container_issue |
5 |
container_start_page |
1727 |
op_container_end_page |
1746 |
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1766303364760469504 |