| 极地低压对费拉姆海峡大西洋入流水天气尺度变化的影响 |
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| 引用本文： | 孙瑞立,高郭平.极地低压对费拉姆海峡大西洋入流水天气尺度变化的影响[J].海洋学报(英文版),2018,37(3):42-50. |
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| 作者姓名： | 孙瑞立 高郭平 |
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| 作者单位： | 浙江工商大学, 环境科学与工程学院, 杭州, 310018;上海海洋大学, 海洋科学学院, 上海, 201306;上海海洋大学, 大洋渔业资源可持续利用省部共建教育部重点实验室, 上海, 201306,上海海洋大学, 海洋科学学院, 上海, 201306;上海海洋大学, 大洋渔业资源可持续利用省部共建教育部重点实验室, 上海, 201306 |
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| 基金项目： | The Global Change Research Program of China under contract No. 2015CB953900; the General Program of National Natural Science Foundation of China under contract No. 41276197; the Natural Science Foundation of Zhejiang Province under contract Nos LY18D060004 and LQ18D060001; the Foundation of Zhejiang Education Department under contract No. 1260KZ0417982; the Talent Start Foundation of Zhejiang Gongshang University under contract Nos 1260XJ2317015 and 1260XJ2117015. |
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| 摘 要： | The Atlantic inflow in the Fram Strait(78°50′N) has synoptic scale variability based on an array of moorings over the period of 1998–2010. The synoptic scale variability of Atlantic inflow, whose significant cycle is 3–16 d, occurs mainly in winter and spring(from January to April) and is related with polar lows in the Barents Sea. On the synoptic scale, the enhancement(weakening) of Atlantic inflow in the Fram Strait is accompanied by less(more)polar lows in the Barents Sea. Wind stress curl induced by polar lows in the Barents Sea causes Ekman-transport,leads to decrease of sea surface height in the Barents Sea, due to geostrophic adjustment, further induces a cyclonic circulation anomaly around the Barents Sea, and causes the weakening of the Atlantic inflow in the Fram Strait. Our results highlight the importance of polar lows in forcing the Atlantic inflow in the Fram Strait and can help us to further understand the effect of Atlantic warm water on the change of the Arctic Ocean.
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| 关 键 词： | 费拉姆海峡 大西洋入流水 天气尺度变化 极地低压 |
| 收稿时间： | 2017/5/18 0:00:00 |
Impact of polar lows on synoptic scale variability of Atlantic inflow in the Fram Strait |
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| SUN Ruili and GAO Guoping.Impact of polar lows on synoptic scale variability of Atlantic inflow in the Fram Strait[J].Acta Oceanologica Sinica,2018,37(3):42-50. |
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| Authors: | SUN Ruili and GAO Guoping |
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| Affiliation: | College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China;College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306, China and College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai 201306, China |
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| Abstract: | The Atlantic inflow in the Fram Strait (78°50''N) has synoptic scale variability based on an array of moorings over the period of 1998-2010. The synoptic scale variability of Atlantic inflow, whose significant cycle is 3-16 d, occurs mainly in winter and spring (from January to April) and is related with polar lows in the Barents Sea. On the synoptic scale, the enhancement (weakening) of Atlantic inflow in the Fram Strait is accompanied by less (more) polar lows in the Barents Sea. Wind stress curl induced by polar lows in the Barents Sea causes Ekman-transport, leads to decrease of sea surface height in the Barents Sea, due to geostrophic adjustment, further induces a cyclonic circulation anomaly around the Barents Sea, and causes the weakening of the Atlantic inflow in the Fram Strait. Our results highlight the importance of polar lows in forcing the Atlantic inflow in the Fram Strait and can help us to further understand the effect of Atlantic warm water on the change of the Arctic Ocean. |
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| Keywords: | Fram Strait Atlantic inflow synoptic scale variability polar lows |
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