锡林浩特市太阳辐射变化及相关气象要素分析

利用1990—2010年锡林浩特气象站太阳总辐射、日照时数、日照百分率、降水量、气温以及总云量的观测资料,运用5a滑动平均及最小二乘原理等方法,分析了锡林浩特市1990—2010年来的总辐射变化规律,并分析了气温、降水、日照、云量等的变化以及与太阳总辐射的相关关系。研究结果表明,锡林浩特市太阳总辐射呈现波动增加的趋势,但四季太阳辐射量在近21a的年际波动略有不同。相关要素分析表明,太阳总辐射与日照时数和夏季、秋季气温有很显著的正相关关系,与降水量和春季、夏季的总云量呈负相关关系。

Analysis on the Change and Relative Elements of Solar Radiation in Xilinhot

By using the observation data of total solar radiation, sunshine duration, percentage of sunshine, precipitation, temperature and total cloud amount of Xilinhot station from 1990 to 2010 years and, the total radiation variation rule was analyzed in recent 21 years of Xilinhot City by the 5-piont running average and the least square method. At the same time, a number of other meteorological factors have been studied, such as the changes in temperature, precipitation, sunshine, cloud amount, etc. as well as the relationship between these meteorological factors and global solar radiation. The results showed that the global solar radiation of Xilinhaote presents a trend of increased volatility, but the inter-annual fluctuations of solar radiation in different season were slightly different in nearly 21 years. Related factors analysis showed that global solar radiation have a very significant positive correlation with sunshine hours and the summer and autumn temperatures and have a negative correlation with orecioitation and the spring and summer cloud amount.