[1]于梅.太平洋海温场变化与黑龙江省夏季降水关系[J].自然灾害学报,2019,28(02):127-135.[doi:10.13577/j.jnd.2019.0214]
 YU Mei.Variation of SST in the Pacific Ocean and summer precipitation in Heilongjiang province[J].,2019,28(02):127-135.[doi:10.13577/j.jnd.2019.0214]
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太平洋海温场变化与黑龙江省夏季降水关系
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
28
期数:
2019年02期
页码:
127-135
栏目:
出版日期:
2019-04-28

文章信息/Info

Title:
Variation of SST in the Pacific Ocean and summer precipitation in Heilongjiang province
作者:
于梅
黑龙江省气候中心, 黑龙江 哈尔滨 150030
Author(s):
YU Mei
Climate Center, Heilongjiang Province, Harbin 150030, China
关键词:
海温场Nino指数大气环流降水
Keywords:
SSTNino indexatmospheric circulationprecipitation
分类号:
P461+2;X43
DOI:
10.13577/j.jnd.2019.0214
摘要:
热带太平洋海温场是大气环流异常变化不可忽视的重要加热场,当厄尔尼诺/拉尼娜事件发生,全球均有不同程度异常天气气候出现,因此对海温场异常变化的研究与分析,是对提高灾害性气候事件预测重要的环节之一。本文应用相关、相似、及对海温场分型方法,寻找对黑龙江省夏季降水异常的强信号。结果表明:海温变化对夏季降水的影响稳定性较差,但春季EOF第1~3模态异常时,对夏季降水有一定影响。厄尔尼诺年发生在降水与SST正相关时段里,副高加强,降水多;厄尔尼诺次年处在正相关时段里,副高加强,全省大部降水多,降水中心在西部;拉尼娜年处在降水与SST正相关时段里时,副高减弱,全省大部分地区降水少。
Abstract:
The SST in the tropical Pacific Ocean is an important heating field that cannot be ignored in the abnormal changes of atmospheric circulation. When El nino/la Nina events occur, there are different degrees of abnormal events occurd in the global weather and climate. Therefore, the study and analysis of the abnormal changes of SST is one of the important links to improve the prediction of disastrous climate events. In this paper, correlation, similarity and SST typing were used to search for strong signals of summer precipitation anomalies in Heilongjiang province. It can be concluded that the influence of SST on summer precipitation is not stable.When the spring EOF modes 1 to 3 is abnormal, it has a certain impact on summer precipitation. When El nino years occurd at the same time with the period of precipitation and SST in the positive correlation, the subtropical high was intensified, and much more precipitation occured in the province. In the following year, El nino was also in the period of precipitation and SST in positive correlation,the subtropical high intensified,and most areas of the province were much more precipitation, and the precipitation centre was in the west of the province. When La Nina year occurd at the same time with the period of precipitation and SST in positive correlation, usuaiy,the subtropical high was weak, and the precipitation in most areas of the province was less than normal.

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备注/Memo

备注/Memo:
收稿日期:2019-01-18;改回日期:2019-04-08。
基金项目:中央引导地方科技发展专项(ZY18C12)
作者简介:于梅(1961-),女,高级工程师,主要从事气候预测研究.E-mail:hljym0115@sina.com
更新日期/Last Update: 1900-01-01