黄河中上游地区半个世纪降水与温度变化分析  

Variation Analysis on Precipitation and Temperature in Upper Reach of Yellow River Basin from 1956 to 2006

作　　者：殷贺[1,2] 王仰麟[1] 彭建[1,2] 

机构地区：[1]北京大学城市与环境学院,北京100871 [2]北京大学深圳研究生院城市人居环境科学与技术重点实验室,广东深圳518055

出　　处：《水土保持研究》2009年第1期69-73,共5页Research of Soil and Water Conservation

基　　金：国家科技支撑计划项目"综合生态与食物安全风险防范关键技术示范"(2006BAD20B07)

摘　　要：采用黄河流域中上游地区85个气象观测站点的逐月温度和降水数据(1956年1月-2006年12月),依据小波变换,对黄河流域中上游地区的气候因子进行不同时间尺度的分析。研究结果表明:黄河流域中上游地区51a的气温和降水变化存在随时间尺度而变化的规律,不同时间尺度的规律相互作用,共同构成黄河流域中上游地区气候变化特征。依据小波分析的结果,定性预测未来黄河流域中上游地区的将继续升温,降水略有增加。In this paper, Mexican Hat Wavelet was used to analyze the multi-scale characteristics of the climate change in the upper and middle reaches of Yellow River Basin, based on the monthly data of temperature and precipitation from 1956 to 2006 coming from the total 85 meteorological observation stations respectively. The results showed that there were different variation rules in climate factors during 51 years in the upper and middle reaches of Yellow River Basin with temporal scale changes. The interactions of rules had impact on changes of climate characteristics in this region. Meanwhile, the wavelet coefficients patterns exhibit a probable increasing trend in temperature and humidity in the following years.

关 键 词：气候因子 时间尺度 小波分析 黄河流域 

分 类 号：P467[天文地球—大气科学及气象学]