Role of source terms in parameterizing wave decay in the marginal ice zones
Wave decay in the marginal ice zones (MIZ) plays a crucial role in shaping the Arctic Ocean behaviours. Parameterizing wave decay in the MIZ is indispensable in climate models for better capturing the climate change in the Arctic. However, current wave decay parameterizations were developed without...
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Uppsala universitet, Luft-, vatten- och landskapslära
2022
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ftuppsalauniv:oai:DiVA.org:uu-487051 2023-05-15T15:00:54+02:00 Role of source terms in parameterizing wave decay in the marginal ice zones Emmanuel, George Victor Rutgersson, Anna Wu, Lichuan 2022 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-487051 https://doi.org/10.1016/j.ocemod.2022.102125 eng eng Uppsala universitet, Luft-, vatten- och landskapslära Ocean Modelling, 1463-5003, 2022, 180, orcid:0000-0001-7656-1881 orcid:0000-0003-0611-3543 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-487051 doi:10.1016/j.ocemod.2022.102125 ISI:000882415900003 info:eu-repo/semantics/openAccess Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser Article in journal info:eu-repo/semantics/article text 2022 ftuppsalauniv https://doi.org/10.1016/j.ocemod.2022.102125 2023-02-23T22:01:20Z Wave decay in the marginal ice zones (MIZ) plays a crucial role in shaping the Arctic Ocean behaviours. Parameterizing wave decay in the MIZ is indispensable in climate models for better capturing the climate change in the Arctic. However, current wave decay parameterizations were developed without considering the influences of wave source terms. This study investigated the role and contributions of different source terms in shaping the MIZ wave decay based on sensitivity simulations. Simulation results show that the ice-induced damping term is the main contributor to MIZ wave decay. The wind input source term also plays an important role in the wave evolution in the MIZ. During high wind speeds (wind speed>10 m/s), wind input was found to increase the wave height by about 10% on average (relative to the wave height decayed by ice), irrespective of the sea ice concentration. Wind input contributes up to 30% in high wind speed areas with low sea ice concentration. Meanwhile, the contributions from wind input term to MIZ wave are more important when winds blow from the open water to MIZ. However, the angle between winds and waves is insignificant in shaping contributions from wind input. Low SIC and high wind speed conditions also favour the enhancement of wave spreading. In general, the contributions from nonlinear wave–wave interactions and dissipation source terms were found to play a minor role in shaping MIZ wave decay. However, the role of nonlinear wave–wave interactions can be important in shaping the wave spectrum. Thus, it is suggested to update the model wave decay parameterizations to accommodate the role played by wind input source term, in particular under high wind speed conditions. Article in Journal/Newspaper Arctic Arctic Ocean Climate change Sea ice Uppsala University: Publications (DiVA) Arctic Arctic Ocean Ocean Modelling 180 102125 |
institution |
Open Polar |
collection |
Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser |
spellingShingle |
Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser Emmanuel, George Victor Rutgersson, Anna Wu, Lichuan Role of source terms in parameterizing wave decay in the marginal ice zones |
topic_facet |
Meteorology and Atmospheric Sciences Meteorologi och atmosfärforskning Oceanography Hydrology and Water Resources Oceanografi hydrologi och vattenresurser |
description |
Wave decay in the marginal ice zones (MIZ) plays a crucial role in shaping the Arctic Ocean behaviours. Parameterizing wave decay in the MIZ is indispensable in climate models for better capturing the climate change in the Arctic. However, current wave decay parameterizations were developed without considering the influences of wave source terms. This study investigated the role and contributions of different source terms in shaping the MIZ wave decay based on sensitivity simulations. Simulation results show that the ice-induced damping term is the main contributor to MIZ wave decay. The wind input source term also plays an important role in the wave evolution in the MIZ. During high wind speeds (wind speed>10 m/s), wind input was found to increase the wave height by about 10% on average (relative to the wave height decayed by ice), irrespective of the sea ice concentration. Wind input contributes up to 30% in high wind speed areas with low sea ice concentration. Meanwhile, the contributions from wind input term to MIZ wave are more important when winds blow from the open water to MIZ. However, the angle between winds and waves is insignificant in shaping contributions from wind input. Low SIC and high wind speed conditions also favour the enhancement of wave spreading. In general, the contributions from nonlinear wave–wave interactions and dissipation source terms were found to play a minor role in shaping MIZ wave decay. However, the role of nonlinear wave–wave interactions can be important in shaping the wave spectrum. Thus, it is suggested to update the model wave decay parameterizations to accommodate the role played by wind input source term, in particular under high wind speed conditions. |
format |
Article in Journal/Newspaper |
author |
Emmanuel, George Victor Rutgersson, Anna Wu, Lichuan |
author_facet |
Emmanuel, George Victor Rutgersson, Anna Wu, Lichuan |
author_sort |
Emmanuel, George Victor |
title |
Role of source terms in parameterizing wave decay in the marginal ice zones |
title_short |
Role of source terms in parameterizing wave decay in the marginal ice zones |
title_full |
Role of source terms in parameterizing wave decay in the marginal ice zones |
title_fullStr |
Role of source terms in parameterizing wave decay in the marginal ice zones |
title_full_unstemmed |
Role of source terms in parameterizing wave decay in the marginal ice zones |
title_sort |
role of source terms in parameterizing wave decay in the marginal ice zones |
publisher |
Uppsala universitet, Luft-, vatten- och landskapslära |
publishDate |
2022 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-487051 https://doi.org/10.1016/j.ocemod.2022.102125 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Climate change Sea ice |
genre_facet |
Arctic Arctic Ocean Climate change Sea ice |
op_relation |
Ocean Modelling, 1463-5003, 2022, 180, orcid:0000-0001-7656-1881 orcid:0000-0003-0611-3543 http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-487051 doi:10.1016/j.ocemod.2022.102125 ISI:000882415900003 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.ocemod.2022.102125 |
container_title |
Ocean Modelling |
container_volume |
180 |
container_start_page |
102125 |
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1766332953573457920 |