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中国东部海域冬季风场与海浪场的关联特征分析
引用本文:周媛媛,周林,关皓,杨波.中国东部海域冬季风场与海浪场的关联特征分析[J].海洋科学进展,2020,38(1):60-69.
作者姓名:周媛媛  周林  关皓  杨波
作者单位:解放军91208部队,山东青岛266102;国防科技大学气象海洋学院,江苏南京211101,国防科技大学气象海洋学院,江苏南京,211101,解放军61741部队,北京,100085,解放军92682部队,广东湛江,524001
基金项目:国家自然科学基金项目——高风速下拖曳系数的衰减程度及其对台风浪模拟的影响研究
摘    要:利用WAVEWATCHⅢ海浪模式模拟的1993-2011年中国东部海域19 a冬季逐日海浪场资料以及同期CCMP逐日风场资料,采用奇异值分解(SVD)的方法分析了冬季中国东部海域海浪场与提前0~5 d的东亚大陆地面风场的关联特征。结果发现:海浪场与提前1 d的地面风场的关联更有意义;SVD第一模态和第二模态分别反映了贝加尔湖以东南下的反气旋式偏北扰动大风(或气旋式偏南扰动大风)和中国东部平原入海的气旋式扰动风场(或反气旋式扰动风场)对中国东部海域海浪的扰动影响。此外,SVD分析还揭示了冬季影响中国东部海域海浪的大风关键区和移动路径;随着时间的推移,大风关键区从贝加尔湖以东逐步由蒙古南下影响中国东北和华北地区,最后到达中国东部海域。

关 键 词:中国东部海域  风场  海浪场  SVD分析

Analysis of the Correlation Between the Daily Wind Field and Wave Field in Winter in the East China Sea
ZHOU Yuan-yuan,ZHOU Lin,GUAN Hao,YANG Bo.Analysis of the Correlation Between the Daily Wind Field and Wave Field in Winter in the East China Sea[J].Advances in Marine Science,2020,38(1):60-69.
Authors:ZHOU Yuan-yuan  ZHOU Lin  GUAN Hao  YANG Bo
Institution:(Army 91208 of PLA,Qingdao 266102,China;School of Meteorology and Oceanography,National University of Defense Technology,Nanjing 211101,China;Army 61741 of PLA,Beijing 100085,China;Army 92682 of PLA,Zhanjiang 524001,China)
Abstract:Using the daily wave field simulated by WAVEWATCH Ⅲ and daily wind field of CCMP in the East China Sea from 1993 to 2011, we analyzed the correlation between the two fields from zero to five days led by wind with the SVD method. Analysis shows that the correlation with one day lead by wind is more meaningful. The first two modes of SVD reflects how the anticyclonic northerly(or cyclonic southerly) perturbation gale from the Lake Baikal and the cyclone(or anticyclone) perturbation moving eastward into the sea affect the wave field. The analysis also reveals the key areas and moving paths of strong winds affecting the waves in the East China Sea in winter. The key area moves from the east of Lake Baikal to Mongolia, then further moves to Northeast and North China, and finally reaches the East China Sea.
Keywords:the East China Sea  wind field  wave field  SVD analysis
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