安徽农业科学2011，Vol.39Issue(27)：16871-16874,4.
鲁南夏季降水与南亚高压及大气环流的关系分析
Relation among Summer Rainfall in South Shandong and High Pressure in South Asia and Atmospheric Circulation
高安春 1申培鲁 1李秉文 1胡燕 1于艳敏 1朱义青1
作者信息
- 1. 山东省临沂市气象局,山东临沂276004
- 折叠
摘要
Abstract
[Objective]The relation among summer rainfall in south Shandong and high pressure in south Asia and atmospheric circulation. [ Method] Taking the precipitation in south Shandong along the Yellow River and Huaihe River, using the NCEP/NCAR data and summer rainfall data in South Shandong in summer from 1961 to 2005, the characteristics of high pressure in south Asia and atmospheric circulation in drought year and flood year in summer in south Shandong Province were expounded. The mechanism of 100 hPa pressure in south Asian influ encing precipitation in south Shandong Province was discussed. The interaction of different equipment, different altitude and different system of atmosphere circulation in low and high layer was expounded. [ Conclusion ] The first mode of EOF decompose of precipitation in summer in south Shandong Province explained above 63% variances and reflected universal form of precipitation. The difference of central position of the central position of height field of high pressure in south Asia in drought and flood year was small. But the wind field center was inconsistent. As the area of SAH was smaller and it' s eastern ridge line stretched to the western Pacific between the middle of South Shandong and Chang Jiang Estuary, flood summer was occurred when there was an unusual cyclone lied in the East of 90° E and South of Lake Baikal, the area of SAH was larger and it's eastern ridge line stretching to the western Pacific over Chang Jiang Estuary, drought summer occurred ,when there was an unusual anticyclone lied in the East of 90° E and South of Lake Baikal. SAH and summer rainfall also had close relationship with Tele connection Patterns over the Eurasia continent and EAP Teleconnection. When the height anomaly was in " + - + " form in the north of the Caspian Sea, around lake Baikal and Kamchatka, and when the height anomaly in East Asia-West Pacific area was in " - + " form from low altitude to high altitude, there was much precipitation in summer; and conversely, it was drought in summer in south Shandong.关键词
鲁南夏季降水/旱涝/南亚高压/大气环流Key words
Summer rainfall in the south of Shandong province/ Drought and floor/ High pressure in south Asia/ Atmospheric circulation分类
天文与地球科学引用本文复制引用
高安春,申培鲁,李秉文,胡燕,于艳敏,朱义青..鲁南夏季降水与南亚高压及大气环流的关系分析[J].安徽农业科学,2011,39(27):16871-16874,4.
