Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085116 |
The Dynamic Response of Sea Ice to Warming in the Canadian Arctic Archipelago | |
Howell, Stephen E. L.; Brady, Mike | |
2019-11-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:22页码:13119-13125 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | Ice arches in the Canadian Arctic Archipelago (CAA) block the inflow of Arctic Ocean ice for the majority of the year. A 22 year record (1997-2018) of Arctic Ocean-CAA ice exchange was used to investigate the effect of warming on CAA sea ice dynamics. Larger ice area flux values were associated with longer flow duration and faster ice speed facilitated by increased open water leeway from the CAA's transition to a younger and thinner ice regime, which together have contributed to a significant ice area flux increase (10(3) km(2)/year) from Arctic Ocean into the northern CAA from 1997 to 2018. Remarkably, the 2016 Arctic Ocean ice area flux into the CAA (161 x 10(3) km(2)) was 7 times greater than the 1997-2018 average (23 x 10(3) km(2)) and almost double the 2007 ice area flux into Nares Strait (87 x 10(3) km(2)). Continued warming may result in the CAA becoming a larger outlet for Arctic Ocean ice area loss. Plan Language Summary Satellite observations are used to understand the effect of warmer temperatures on how much sea ice is transferred between the Canadian Arctic Archipelago (CAA) and the Arctic Ocean. Larger sea ice area flux values are associated with (i) longer flow duration, (ii) faster moving ice, and (iii) more open water leeway from the CAA's long-term transition to a younger and thinner ice regime. These factors have contributed to a significant increase in the amount of sea ice entering the northern regions of the CAA from 1997 to 2018. Remarkably, the amount of Arctic Ocean ice entering the CAA in 2016 was 7 times larger the 1997-2018 average and almost double that of the amount of ice transported through Nares Strait in 2007. Overall, with continued warming the CAA could be larger pathway for the loss of sea ice in the Arctic Ocean. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000505879600051 |
WOS关键词 | OCEAN ; VARIABILITY ; THICKNESS ; STRAIT ; MOTION ; TRENDS ; EXPORT |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225113 |
专题 | 环境与发展全球科技态势 |
作者单位 | Environm & Climate Change Canada, Climate Res Div, Toronto, ON, Canada |
推荐引用方式 GB/T 7714 | Howell, Stephen E. L.,Brady, Mike. The Dynamic Response of Sea Ice to Warming in the Canadian Arctic Archipelago[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(22):13119-13125. |
APA | Howell, Stephen E. L.,&Brady, Mike.(2019).The Dynamic Response of Sea Ice to Warming in the Canadian Arctic Archipelago.GEOPHYSICAL RESEARCH LETTERS,46(22),13119-13125. |
MLA | Howell, Stephen E. L.,et al."The Dynamic Response of Sea Ice to Warming in the Canadian Arctic Archipelago".GEOPHYSICAL RESEARCH LETTERS 46.22(2019):13119-13125. |
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