热带地理2012，Vol.32Issue(3)：246-251,6.
全球变暖背景下广东省近60年来极端气温时空变化特征分析
Temporal and Spatial Variations of Extreme Temperature in Guangdong over the Last 60 Years in the Background of Global Warming
摘要
Abstract
Six extreme temperature indexes were calculated with the temperature data of 26 meteorological stations in Guangdong from 1951 to 2010. The methods of linear trend estimation, Mann-kendall trend test and abrupt test were used to study the characteristics of temporal and spatial variations of the extreme temperature in the province. The results indicated that the temperature in Guangdong had a tendency towards extremity in the last 60 years. The tendency towards extreme high temperature was not notable, but that towards extreme low is significant. All the six temperature indexes were tested to have an abrupt change, which occurred mainly in the 1990s and early 21 century. Except the TX90% (Warm days), the rest of the indexes, namely SU(Summer days), FD(Frost days), TN90%(Warm nights), TX10%(Cold days) and TN10%(Cold nights), all presented a fast increasing trend after the abrupt change. As compared with the period of 1960-1981 when the tendency of temperature extremity was not significant, the period of 1981-2010 had a notable trend to not only extremely high temperature, but also extremely low. As for the spatial difference, the four percentage threshold indexes all had a mosaic distribution, roughly presenting a consistency pattern among the central, western and eastern regions in the province, while in the northern region the range of temperature change was less.关键词
极端气温/极端气温指数/时空变化/广东省Key words
extreme temperature/ extreme temperature index/ temporal and spatial change/ Guangdong Province分类
天文与地球科学引用本文复制引用
黄强,陈子粲,刘占明..全球变暖背景下广东省近60年来极端气温时空变化特征分析[J].热带地理,2012,32(3):246-251,6.基金项目
2009年广东省水利创新研究项目(2011370004209292) （2011370004209292）
