| 摘要: |
| 应用昆明近300年历史旱涝指数和近百年降雨观测资料,研究了旱涝历史气候演变、气候周期变化和年际变化的规律,探讨了厄尔尼诺、太阳黑子、大气环流因子对旱涝气候变化的影响。主要结果有:(1)昆明旱涝气候变化主要存在40年和11年的周期,40年变化周期受厄尔尼诺变化周期影响,11年变化周期受太阳黑子变化周期影响,厄尔尼诺和太阳黑子的周期变化是昆明旱涝周期变化的两大影响因子。(2)昆明降雨年际变化与大气环流因子存在很大的关系,其中南方涛动和西风带W. C. E型环流型不同配置产生的综合影响是昆明降雨年际变化的主要天气气候成因。 |
| 关键词: 旱涝灾害 气候变化 影响因子 |
| DOI： |
| 分类号: |
| 基金项目:云南省教委基金 |
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| EVOLUTION LAW OF DRYNESS AND WETNESS OF KUNMING IN RECENT 300 YEARS |
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Yan Huasheng1, Xie Yingqi1, Zhao Xiaoqing1, Cao Jie1, Zhou Chuanxi1, Luo Lanxian2
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1.The Earth Sience Department, Yunnan University, Kunming, 650091;2.The Meterralogical Service of Yunnan Province
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| Abstract: |
| Considering the dryness and wetness index of Kunming in recent 300 years and the rainfall data of Kunming in the past 100 years. we studied the evolution law of dryness and wetness and the variation law of climate period. The influences on the dryness and wetness that were caused by the changes of El Nino, sunspot and atmospheric circulation were also studied. |
| Key words: Damage of dryness and wetness Climate change Factor of influence |
