| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2022-12-16 |
| タイトル |
|
|
タイトル |
Unusual drift behaviour of multi-year sea ice in the Beaufort Sea during summer 2018 |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
Noriaki Kimura
Kazutaka Tateyama
Kazutoshi Sato
Richard A. Krishfield
Hajime Yamaguchi
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
In summer 2018, thick sea ice blocked the mouth of the Amundsen Gulf (AG), Canada, obstructing shipping through the North-west Passage. This study analysed multi-year ice motion to investigate the source of this thick ice and the reasons for its unusual movement. For this purpose, a daily multi-year ice distribution product was generated by ice tracking using gridded daily sea-ice velocities (2003–2018) derived from the AMSR-E and AMSR-2 data. From autumn 2017 to summer 2018, the area of multi-year ice extended westward to the Beaufort Sea and then migrated towards the AG mouth. The primary cause of the unusual ice cover was anomalous AG-ward wind in September 2018. It is known that multi-year ice has become increasingly moveable over the past decades, as indicated by the increasing wind factor (i.e., ratio of ice-drift speed and wind speed), but the unusual ice motion in the summer of 2018 cannot be explainable by the wind factor alone. Accurately, predicting monthly wind and monitoring old thick ice will reduce the risk posed by thick Arctic sea ice to shipping. |
|
言語 |
en |
| 書誌情報 |
en : Polar Research
巻 39,
p. 3617,
発行日 2020
|
| DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.33265/polar.v39.3617 |
| 出版者 |
|
|
出版者 |
Norwegian Polar Institute |
|
言語 |
en |
| 著者版フラグ |
|
|
言語 |
en |
|
値 |
publisher |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
3617-Article Text-36575-1-10-20201008.pdf (6.2 MB)
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