北方气旋变化及其对西北地区天气气候的影响

冰川冻土 ›› 2003, Vol. 25 ›› Issue (5): 526-532.

北方气旋变化及其对西北地区天气气候的影响

王遂缠¹, 李栋梁²

1. 南京气象学院, 江苏, 南京, 210044;
2. 中国科学院, 寒区旱区环境与工程研究所, 甘肃, 兰州, 730000

收稿日期:2003-01-21 修回日期:2003-06-03 出版日期:2003-10-25 发布日期:2012-04-26
作者简介:王遂缠(1975-), 男, 甘肃秦安人, 工程师, 1998年在南京气象学院获学士学位, 现为南京气象学院硕士生, 主要从事天气气候诊断和预测研究.E-mail:wangsc@gsma.gov.cn
基金资助:
国家重点基础研究发展规划项目(GT2000048703);科技部社会公益类研究专题资金项目(2000BIA10031);甘肃省气象局青年科学基金项目资助

Relationship between Northern Cyclones and Climate Change in Northwest China

WANG Sui-chan¹, LI Dong-liang²

1. Nanjing Institute of Meteorology, Nanjing Jiangsu 210044, China;
2. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou Gansu 730000, China

Received:2003-01-21 Revised:2003-06-03 Online:2003-10-25 Published:2012-04-26

摘要/Abstract

摘要： 利用1957—1990年的地面天气图资料统计了北方气旋活动频次,分析了北方气旋的若干气候统计特征及其与西北地区天气气候的对应关系.结果表明,北方气旋发生频次在20世纪50年代末呈上升趋势,60—70年代处在下降通道中,尤其是冬季和秋季下降最为明显.春季北方气旋活动频次增加时,当年西北地区夏季降水明显偏少;北方气旋频次的减少是我国沙尘天气减少的重要原因之一.

关键词: 北方气旋, 西北天气气候, 统计分析

Abstract: Based on surface station meteorological data from 1957 to 1990 the number of the Northern Cyclones is worked out. Some statistical characteristics between the Northern Cyclone and the relationship of temperature and precipitation in Northwest China are analyzed. The results show that the frequency of the North Cyclones was ascending in the last of the 1950s, descending remarkably from the 1960s to the 1970s, especially in the winter and in the autumn, and the relationship between the Northern Cyclones and the weather in Northwest China is high. Especially, the frequency of the North Cyclones in spring has an important function on precipitation in the flood season in Northwest China. Furthermore, the change in Northern Cyclones has remarkable relationship with sandstorms in North China, and the descending frequency of Northern Cyclones plays an important role in descending sandstorms.

Key words: Northern Cyclones, Northwest China’s weather, statistic analysis

中图分类号:

P443

王遂缠, 李栋梁. 北方气旋变化及其对西北地区天气气候的影响[J]. 冰川冻土, 2003, 25(5): 526-532.

WANG Sui-chan, LI Dong-liang. Relationship between Northern Cyclones and Climate Change in Northwest China[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2003, 25(5): 526-532.

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