Analysis of Temperature Trends and Spatial Variability in Huaibei Plain

Abstract

Based on monthly data about temperature from 1957 to 2007 in Huaibei plain. Temperature variation trends and spatial differences were investigated by linear trend estimation method. Results show that annual mean temperature has increased about 1.2°C, with 0.25°C per ten years, which is especially obvious after the 1990s; Seasonal increasing trends are significant except summer, with increments of 1.6, 1.4 and 1.7°C in spring, autumn, and winter, about 0.33, 0.26, and 0.36°C per ten years, respectively; Warming rate from large to small was winter, spring and autumn. Suzhou and Bengbu are the most affected areas, which is warming obviously, increase temperature range is bigger; Dangshan, Bozhou, and Fuyang is the second one, warming of smaller amplitude.