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典型文献
Distinct patterns of monthly Southern Annular Mode events
文献摘要:
南半球环状模(SAM)是南半球中-高纬度地区大气变化的主导模态,表现为气压和极锋急流(PFJ)的大尺度变动,形成强烈的气候影响.当SAM事件发生时,气压场异常可呈现出不同的空间结构.本文利用自组织映射网络方法对月尺度的SAM事件进行分类,可识别出四对具有显著差异的正,负SAM事件类型,包括对称型,中心分裂型,西南极洲型和一种三极型分布.气压异常的空间分布越不对称,调整后的纬向风异常越局地化.PFJ的经向位移和强度变化入口和出口的变化,可能导致了SAM的不同气候影响.
文献关键词:
南半球环状模;自组织映射网络;纬向不对称性;南极洲
作者姓名:
Minglin Zheng;Xiuzhen Li
作者机构:
引用格式:
[1]Minglin Zheng;Xiuzhen Li-.Distinct patterns of monthly Southern Annular Mode events)[J].大气和海洋科学快报(英文版),2022(04):38-43
A类:
南半球环状模,PFJ,纬向不对称性
B类:
Distinct,patterns,monthly,Southern,Annular,Mode,events,SAM,高纬度地区,极锋急流,大尺度,气候影响,气压场,自组织映射网络,月尺度,事件类型,西南极,南极洲,三极,局地化,经向,强度变化,化入,同气
AB值:
0.335694
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