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学科主题: Ecology; Environmental Sciences; Marine & Freshwater Biology; Water Resources
题名: Impacts of the Siberian High and Arctic Oscillation on the East Asia winter monsoon: Driving downwelling in the western Bering Sea
作者: Wang, J ; Bai, XZ ; Wang, DX ; Wang, DR ; Hu, HG ; Yang, XY
通讯作者: jia.wang@noaa.gov
关键词: Aleutian low ; coupled ice-ocean model ; marginal seas ; semi-enclosed seas
刊名: AQUATIC ECOSYSTEM HEALTH & MANAGEMENT
发表日期: 2012
卷: 15, 期:1, 页:20-30
部门归属: [Wang, Jia] NOAA, Great Lakes Environm Res Lab, Ann Arbor, MI 48108 USA; [Bai, Xuezhi; Hu, Haoguo] Univ Michigan, Cooperat Inst Limnol & Ecosyst Res, Sch Nat Resources & Environm, Ann Arbor, MI 48109 USA; [Wang, Dongxiao] Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China; [Wang, Daoru] Hainan Marine Dev & Design Inst, Hainan, Peoples R China; [Yang, Xiaoyi] Xiamen Univ, Xiamen, Fujian, Peoples R China
项目归属: LTO
摘要: The relationships between the wind fields of the East Asia winter monsoon (EAWM), the Siberian High (SH), and the Arctic Oscillation (AO) were investigated using reanalysis products. The winter anomalies of the wind fields were systematically examined from the Bering Sea, the Sea of Okhotsk (SoO), the Sea of Japan (SOJ), the East China Sea (ECS), and all the way to the South China Sea (SCS). The sea-level pressure (SLP) difference between the SH and the Aleutian Low (AL) determines the intensity of the EAWM. Wind field anomalies are controlled directly by the SH and indirectly by the AO that has significant impacts on the SH and AL. It is found that +SH enhances the EAWM, while +AO reduces the intensity of the EAWM by reducing the SLP difference (gradient) between the SH and AL; vice versa for the -SH and -AO, respectively. The surface air temperature (SAT) anomalies caused by the +SH result in a significant cooling in the downstream regions and a warming in the upstream regions; vice versa for the negative phase of the SH. The +AO produces a large warming in northern Eurasian and a cooling in the Bering Sea. Furthermore, using a Coupled Ice-Ocean Model (CIOM), it is found that the EAWM can produce a downwelling and dense water formation along the Siberian coast in the western Bering Sea, and also a significant surface-to-bottom convection over the Bering shelf, forming the winter shelf water, which can survive the summer as the so-called cold pool. The cold pool in the Bering Sea has significant impacts on marine ecosystems and habitat including fisheries, which has much implication to other marginal seas of East Asia.
语种: 英语
WOS记录号: WOS:000301956600005
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10265
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Recommended Citation:
Wang, J; Bai, XZ; Wang, DX; Wang, DR; Hu, HG; Yang, XY.Impacts of the Siberian High and Arctic Oscillation on the East Asia winter monsoon: Driving downwelling in the western Bering Sea,AQUATIC ECOSYSTEM HEALTH & MANAGEMENT,2012,15(1):20-30
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