环流异常,低涡指数,小波分析," /> 环流异常,低涡指数,小波分析,"/> Circulation anomaly,Polar vortex index,Wavelet analysis,"/> 中高纬环流因子与黑龙江省初夏气候异常分析
主办单位：中国气象局沈阳大气环境研究所
国际刊号：ISSN 1673-503X
国内刊号：CN 21-1531/P
气象与环境学报

气象与环境学报 ›› 2013, Vol. 29 ›› Issue (6): 63-67.doi:

• 论　文 • 上一篇    下一篇

中高纬环流因子与黑龙江省初夏气候异常分析

张健 李永生   

  1. 黑龙江省气候中心，黑龙江 哈尔滨 150030
  • 出版日期:2013-12-31 发布日期:2013-12-31

Circulation factors in middle and high latitudes and climate anomaly in early of summer in Heilongjiang province

ZHANG Jian LI Yong-sheng   

  1. Heilongjiang Climate Center, Harbin 150030, China
  • Online:2013-12-31 Published:2013-12-31

PDF (PC)

371

被引次数

12

摘要： 利用1954—2010年地面气温、降水观测资料和月环流特征量、NCEP高度场再分析资料等，采用常规气候统计方法，分析了黑龙江省初夏6月气温、降水的气候特点，通过初夏6月气温、降水与北半球500 hPa高度场相关分析，建立起与中高纬度环流因子关系。结果表明：黑龙江省初夏气候异常与中高纬度环流异常有关，影响初夏气候异常的中高纬度环流因子主要有亚洲纬向环流指数，阿留申低压指数，亚洲区极涡面积指数，鄂霍次克海的阻塞高压指数等。在此基础上分析大气及中高纬度环流因子的背景，考虑外强迫因子海温的间接作用，掌握中高纬度环流因子的变化，是准确预测黑龙江省初夏气候的关键前提所在。

关键词: font-family: 宋体, mso-ascii-font-family: 'Times New Roman', mso-hansi-font-family: 'Times New Roman', mso-bidi-font-family: 'Times New Roman', mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, 环流异常')">mso-bidi-language: AR-SA">环流异常, 低涡指数, 小波分析

Abstract:  Using the ground temperature and precipitation data, the monthly circulation eigenvalue, the NCEP reanalysis data of height field and so on, the climatic characteristics of air temperature and precipitation in June in Heilongjiang province were analyzed by a conventionally climatic statistic method. The correlations of air temperature and precipitation with geopotential height field at 500 hPa in the northern hemisphere were discussed, and their relationships with circulation factors in the middle and higher latitudes were established. The results show that the abnormal climate in Heilongjiang province in the early summer is related to circulation anomaly in the middle and higher latitudes. The main impacting factors include latitudinal circulation index in Asia, Aleutian low index, polar vortex area index in Asia and Okhotsk blocking high index and so on. On the basis of the above analysis, the background of atmosphere, the indirect action of sea temperature as an outside forcing factor, the background and variation of circulation factors in the middle and higher latitudes are considered, which are the essential premise predicting the climate in the early summer in Heilongjiang province.

Key words: font-family: "Times New Roman", mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, Circulation anomaly')">mso-fareast-font-family: 宋体">Circulation anomaly, Polar vortex index, Wavelet analysis