文章摘要
2022年春季海洋天气评述
Spring 2022 marine weather review
投稿时间:2022-07-11  修订日期:2022-08-04
DOI:
中文关键词: 大风  海雾  冷空气  浪高  海面温度
英文关键词: gale  sea fog  cold air  wave height  sea surface temperature
基金项目:国家重点研发计划项目( 2019YFC1510104),国家气象中心气象现代化建设专项QXXDH202111
作者单位邮编
张增海 National MeteorologicalCenter, China 100081
刘涛 National MeteorologicalCenter, China 100081
尹尽勇 National MeteorologicalCenter, China 100081
郭乙莹  100081
张浩  100081
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中文摘要:
   2022年春季(3—5月)北半球极涡呈单极型分布,形状狭长,极涡强度与历史同期相当。北半球中高纬度西风带呈4波型分布。3月我国北方的大部分地区及北部海域处于西北气流控制,4月东亚大槽加深,高压脊区较历史同期偏强,5月中高纬环流调整为“两槽两脊”型。我国近海出现了12次大风过程,其中冷空气大风过程有4次,冷空气和温带气旋共同影响的大风过程有3次,温带气旋大风过程有4次,冷空气与热带气旋共同影响的大风过程1次。近海共出现10次比较明显的海雾过程,3月4次,4月3次,5月3次。西北太平洋和南海共有2个热带气旋生成,近海浪高2m以上的海浪过程有12次,总日数为44d。我国近海的海面温度整体呈上升趋势,北方海域升温幅度大于南方海域。
英文摘要:
   The main characteristics of the general atmospheric circulation in spring 2022 (from March to May) are as follows. The polar vortex is characterized by a monopole pattern in the Northern Hemisphere, with a long and narrow shape, and the intensity of the polar vortex is comparable to climatological normal. The westerlies in the middle and high latitudes are in 4-wave pattern. In March, most of the northern regions and the northern sea are under the control of northwest airflow. In April, the East Asian trough deepened, high-pressure ridge area is stronger than the same period in history. In May, the circulation in the middle and high latitudes for "two troughs and two ridges" type. There are totally 12 gale processes above 8-grade over offshore areas of China in spring, including 4 times produced by cold air, 3 times jointly induced by cold air and extratropical cyclones, 4 times generated by extratropical cyclones, and 1 times jointly induced by cold air and tropical cyclones. Ten obvious sea fog processes occur over offshore areas, including four in March, three in April, and three in May. There are 12 rough sea wave processes above two meters. Two tropical cyclones are active over western North Pacific and the South China Sea. The sea surface temperature in the offshore areas shows upward tendency,while the temperature rising
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