安徽农业科学2011，Vol.39Issue(11)：6583-6586,4.
河西走廊东部近50年高、低温气候特征分析
Analysis on the Climatic Characteristics of High and Low Temperature in the East of Hexi Corridor in Recent 50 Years
摘要
Abstract
[ Objective ] The research aimed to analyze the climatic characteristics of high and low temperature in the east of Hexi Corridor in recent 50 years. [Method] Based on the high (the daily highest temperature ≥35 ℃ ) and low (the daily lowest temperature ≤ -20 ℃ )temperature data in five observatories in the east of Hexi Corridor during 1960 - 2009, the temporal and spatial distribution, intensity, continuity and circulation situation of high and low temperature were analyzed in detail by using the statistical method. [ Result］ The high temperature in the east of Hexi Corridor mainly happened in the edge of northeast desert, and the low temperature mainly happened in the mountain zone where the altitude was high and the edge of north desert. As the climate became warm, the high temperature days showed the weak increase trend, and the intensity strengthened. The low temperature days showed the obvious decrease trend, and the intensity weakened. The high temperature weather mainly occurred in June, August, and the low temperature mainly occurred in January, February, December. The high and low temperature weather had the durative characteristic. The strong high and low temperature mainly occurred in the durative time of high and low temperature. The high temperature weather appeared in the zone where was controlled and affected by the subtropical high. The low temperature weather appeared in the zone where the strong cold air accumulated and invaded. [ Conclusion] The research provided the certain theory basis for the accurate forecast and early warning of high and low temperature.关键词
河西走廊东部/高温/低温/气候特征Key words
East of Hexi Corridor/ High temperature/ Low temperature/ Climatic characteristic分类
天文与地球科学引用本文复制引用
杨晓玲,丁文魁,杨金虎..河西走廊东部近50年高、低温气候特征分析[J].安徽农业科学,2011,39(11):6583-6586,4.基金项目
甘肃省第5批"十人计划". （）
