An analytical model for wind-driven Arctic summer sea ice drift
The authors present an analytical model for wind-driven free drift of sea ice that allows for an arbitrary mixture of ice and open water. The model includes an ice–ocean boundary layer with an Ekman spiral, forced by transfers of wind-input momentum both through the sea ice and directly in...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2016-01-01
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| Series: | The Cryosphere |
| Online Access: | http://www.the-cryosphere.net/10/227/2016/tc-10-227-2016.pdf |
| _version_ | 1819160536359632896 |
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| author | H.-S. Park A. L. Stewart |
| author_facet | H.-S. Park A. L. Stewart |
| author_sort | H.-S. Park |
| collection | DOAJ |
| description | The authors present an analytical model for wind-driven free drift of sea
ice that allows for an arbitrary mixture of ice and open water. The model
includes an ice–ocean boundary layer with an Ekman spiral, forced by
transfers of wind-input momentum both through the sea ice and directly into
the open water between the ice floes. The analytical tractability of this
model allows efficient calculation of the ice velocity provided that the
surface wind field is known and that the ocean geostrophic velocity is
relatively weak. The model predicts that variations in the ice thickness or
concentration should substantially modify the rotation of the velocity
between the 10 m winds, the sea ice, and the ocean.
<br><br>
Compared to recent observational data from the first ice-tethered profiler
with a velocity sensor (ITP-V), the model is able to capture the
dependencies of the ice speed and the wind/ice/ocean turning angles on the
wind speed. The model is used to derive responses to intensified southerlies
on Arctic summer sea ice concentration, and the results are shown to compare
closely with satellite observations. |
| first_indexed | 2024-12-22T16:58:00Z |
| format | Article |
| id | doaj.art-a5b52c20f762444d856c4bf852ddafbc |
| institution | Directory Open Access Journal |
| issn | 1994-0416 1994-0424 |
| language | English |
| last_indexed | 2024-12-22T16:58:00Z |
| publishDate | 2016-01-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | The Cryosphere |
| spelling | doaj.art-a5b52c20f762444d856c4bf852ddafbc2022-12-21T18:19:24ZengCopernicus PublicationsThe Cryosphere1994-04161994-04242016-01-0110122724410.5194/tc-10-227-2016An analytical model for wind-driven Arctic summer sea ice driftH.-S. Park0A. L. Stewart1Korea Institute of Geoscience and Mineral Resources, Daejeon, South KoreaDepartment of Atmospheric and Oceanic Sciences, University of California, Los Angeles, USAThe authors present an analytical model for wind-driven free drift of sea ice that allows for an arbitrary mixture of ice and open water. The model includes an ice–ocean boundary layer with an Ekman spiral, forced by transfers of wind-input momentum both through the sea ice and directly into the open water between the ice floes. The analytical tractability of this model allows efficient calculation of the ice velocity provided that the surface wind field is known and that the ocean geostrophic velocity is relatively weak. The model predicts that variations in the ice thickness or concentration should substantially modify the rotation of the velocity between the 10 m winds, the sea ice, and the ocean. <br><br> Compared to recent observational data from the first ice-tethered profiler with a velocity sensor (ITP-V), the model is able to capture the dependencies of the ice speed and the wind/ice/ocean turning angles on the wind speed. The model is used to derive responses to intensified southerlies on Arctic summer sea ice concentration, and the results are shown to compare closely with satellite observations.http://www.the-cryosphere.net/10/227/2016/tc-10-227-2016.pdf |
| spellingShingle | H.-S. Park A. L. Stewart An analytical model for wind-driven Arctic summer sea ice drift The Cryosphere |
| title | An analytical model for wind-driven Arctic summer sea ice drift |
| title_full | An analytical model for wind-driven Arctic summer sea ice drift |
| title_fullStr | An analytical model for wind-driven Arctic summer sea ice drift |
| title_full_unstemmed | An analytical model for wind-driven Arctic summer sea ice drift |
| title_short | An analytical model for wind-driven Arctic summer sea ice drift |
| title_sort | analytical model for wind driven arctic summer sea ice drift |
| url | http://www.the-cryosphere.net/10/227/2016/tc-10-227-2016.pdf |
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