【作者】 黄斌； 王劲松； 张洪芬；

【Author】 Huang Bin1,2, Wang Jinsong1, Zhang Hongfen2 (1.Institute of Arid Meteorology, China Meteorological Administration, Key Laboratory of Arid climatic Change and Reducing Disaster of Gansu Province, Key Open Laboratory of Arid climatic Change and Disaster Reduction, Lanzhou 730020; 2.Gansu Qingyang Meteorological Bureau, Xifeng 745000, Gansu)

【机构】 中国气象局兰州干旱气象研究所,甘肃省干旱气候变化与减灾重点实验室,中国气象局干旱气候变化与减灾重点开放实验室； 甘肃省庆阳市气象局；

【摘要】 利用1961～2006年西北干旱区139站和东部季风区378站夏季平均气温资料,采用趋势系数、相关性检验等方法,对比分析了两个区域夏季气温的时间和空间变化特征、气温变幅分布,并对产生变化的原因进行了初步探讨。结果表明:受气候变暖大背景的影响,西北干旱区和东部季风区夏季气温变化均为波动式上升趋势,但由于地理位置的差异,受夏季风影响不同,导致西北干旱区(0.24℃/10a)的升温趋明显高于势季风区(0.11℃/10a),同时明显高于相同纬度区域的季风区(0.15℃/10a)气温变化趋势。两个区域气温变幅空间变化分布上都存在明显的升温区域和气温变化相对较弱的区域,季风区在黄河中下游以南地区到长江中下游以北的广大地区变化不明显,黄河中下游以北的华北、东北地区有相对较明显的升温趋势;西北干旱区明显的升温为主,尤其是以青海西部至蒙古高原西部形成的一带状区域为主要明显升温区,其最大升温率达到0.93℃/10a,变化相对较弱的区域主要位于吐鲁番盆地和塔里木盆地。更多还原

【Abstract】 we made use of summer mean temperature data of arid region of northwest China 139 stations and 378 stations in eastern monsoon region during 1961 to 2006, used the methods of trend coefficient and related test, comparative analysis of the two regional summer temperature changes in the temporal and spatial characteristics of the distribution of temperature variation, and the reasons for change were discussed.The results shown that it was impacted by the background of climate warming, summer mean temperature were fluctuations in upward trend in two regions, but because of geographical differences, the different effects of the summer monsoon, caused the warming trend of northwest arid region (0.24 ℃/ 10a) was significantly higher than eastern monsoon region(0.11 ℃/ 10a), while significantly higher than the same latitude zone monsoon region (0.15 ℃/ 10a) the trend of temperature change.Both the regional distribution of temperature variation on the spatial variation of temperature there were clear changes region and the relatively weak region, the region of southern area of the middle and lower reaches of the Yellow River to the north of the Yangtze River middle and lower reaches of the vast areas did not change significantly in Monsoon region, the middle and lower reaches of the Yellow River, north of North China, Northeast China has a relatively more pronounced warming trend.Arid area of northwest China mainly apparent warming, especially in the western Qinghai Province to the western plateau region formed one band obviously warming as the main area, the largest rate of 0.93 ℃/ 10a, the relatively weak changes in the region are mainly located in the Turpan Basin and Tarim Basin.更多还原