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气候暖干化对中国北方干热风的影响
Impact of Climate Warming and Drying on Hot-arid Wind in Northern China
【作者】 邓振镛; 张强; 倾继祖; 徐金芳; 黄蕾诺; 张树誉;
【Author】 DENG Zhenyong1, ZHANG Qiang1, QING Jizu1, XU Jinfang2, HUANG Leinuo1, ZHANG Shuyu3(1.Lanzhou Institute of Arid Meteorology, Key open Laboratory of Arid climate Change and Reducing Disaster, China Meteorological Administration, Key Laboratory of Arid climate Change and Reducing Disaster of Gansu Province, Lanzhou, 730020, Gansu , China; 2. Gansu Meteorological Bureau Center of Information, Lanzhou 730000, Gansu, China; 3. Shanxi Meteorological Bureau, Xi’an, 710015, Shanxi, China )
【机构】 中国气象局兰州干旱气象研究所,甘肃省(中国气象局)干旱气候变化与减灾重点(开放)实验室; 甘肃省气象信息中心; 陕西省气象局;
【摘要】 本文全面系统综述并阐明干热风气象灾害在指标类型、时空分布、形成原因、发生环境、危害特征、防御技术等6个方面的内容。干热风危害特点具有明显温度猛增、湿度骤降的突变性和昼夜维持干热天气分不开。揭示了气候暖干化是北方现代气候变化的基本特征,气候变暖尤其使极端气温显著升高,气候变干使降水量持续偏少,出现了明显干旱化趋势。干热风发生次数与气候变暖呈显著正相关,与气候变干呈显著反相关。干热风对气候暖干化的响应十分敏感。气候暖干化使干热风发生区域扩大、次数增多、强度增强、危害加重。因此防御干热风和干旱化危害刻不容缓。
【Abstract】 In this review, we summarized the types, spatial and temporal distribution, cause of formation, occurrence condition, characteristics of damage and prevention techniques of hot-arid winds. The hot-arid wind is often accompanied with rapid temperature increases and abrupt humidity decreases regardless of day or night. This climate warming and drying was the typical characteristics of modern climate changes in northern China. Climate warming caused significant increases in extreme temperature; whereas drying caused constantly reduced precipitation which in turn caused a trend towards drought. The occurrence of hot-arid winds displayed a positive correlation with climate warming, but a negative correlation with climate drying. Arid-hot wind is quite sensitive to climate warming and drying. Overall, climate warming and drying caused an expansion in areas where arid-hot wind occurs, increased its frequency and severity, which intensified the damages. It is a great urgency to protect against the hot-arid wind and drying.
【Key words】 Climate warming and drying; Northern China; hot-arid wind; impact;
- 【会议录名称】 第26届中国气象学会年会气候变化分会场论文集
- 【会议名称】第26届中国气象学会年会气候变化分会场
- 【会议时间】2009-10-14
- 【会议地点】中国浙江杭州
- 【分类号】P425.61
- 【主办单位】中国气象学会气候变化委员会、国家气候中心