2022年秋季海洋天气评述  

Autumn 2022 marine weather review

作　　者：曹越男 刘涛 王慧 张增海 CAO Yuenan;LIU Tao;WANG Hui;ZHANG Zenghai(National Meteorological Center,Beijing 100081,China)

机构地区：[1]国家气象中心,北京100081

出　　处：《海洋气象学报》2023年第1期117-126,共10页Journal of Marine Meteorology

基　　金：国家重点研发计划项目(2021YFC3090205)。

摘　　要：2022年秋季(9—11月)北半球大气环流特征为:极涡呈偶极型,中高纬环流呈5波型分布,欧亚大陆西风带环流较为平直,西风带槽脊较弱,影响我国的冷空气势力较历史同期平均偏弱,9—10月热带气旋活动频繁。我国近海出现了14次8级以上大风过程,其中冷空气和温带气旋共同影响的大风过程为5次,冷空气和热带气旋共同影响的大风过程为5次,热带气旋大风过程为2次,冷空气大风过程为2次。西北太平洋和南海共生成13个热带气旋,全球其他海域生成22个热带气旋。我国出现2.0 m以上大浪过程的日数为80 d,约占秋季总日数的88%。秋季,我国近海海域海面温度逐月下降,北部海域海面温度较常年平均偏低,南部海域偏高。In the Northern Hemisphere,the general atmospheric circulation in autumn(from September to November)2022 is characterized by a dipole mode of polar vortex and 5-wave circulation in the middle and high latitudes.In Eurasia,the circulation pattern of the westerly wind belt is straight without significant ridges or troughs.Cold air is weaker than the historical average,and tropical cyclones are frequent between September and October.Among the 14 gale events above Beaufort scale 8 over offshore areas of China,5 are produced jointly by cold air and extratropical cyclones,5 jointly by cold air and tropical cyclones,two by tropical cyclones,and two by cold air.There are 13 tropical cyclones in western North Pacific and the South China Sea,while 22 tropical cyclones are named in other oceans.There are 80 days of rough sea wave events with wave height greater than 2.0 m,accounting for about 88%of the total days of autumn.In autumn,the sea surface temperature(SST)over China’s offshore waters decreases month by month,and the SST in the northern(southern)sea areas is lower(higher)than the climatological normals.

关 键 词：大气环流 大风 热带气旋 浪高 海面温度 

分 类 号：P732.2[天文地球—海洋科学]