太原市太阳总辐射特征及相关要素分析  

The Analysis of Solar Radiation and Relative factors in Taiyuan City

作　　者：徐可文[1] 李智才 李红[1] 李秀珍[1] 

机构地区：[1]山西省观象台,山西太原030006 [2]山西省阳泉市气象局,山西阳泉045000

出　　处：《山西气象》2006年第3期18-19,24,共3页Shanxi Meteorological Quarterly

摘　　要：用5年滑动平均方法并用最小二乘法建立方程式,计算太阳辐射气候倾向率及日照气候倾向反映太阳辐射的45a变化趋势,用小波分析方法分析太阳总辐射的周期变化规律。结果表明,太原地区的年日照时数减少,年总辐射量呈显著减少趋势,有11a的周期变化,在1981年左右有突变。初步统计能见度低于10km次数在逐年增多。By using the 5 - piont running average and the least square method, the trends of solar radiation and duration of sunlight are calculated. At the same time, the periodic change of solar radiation is analyzed by wavelete method. The results show that the duration of sunlight as well as annual solar radiation decrease. The periods is 11a and there is a jump about 1981. In addition the frequency of visibility less than 10km increases based on the primary results.

关 键 词：太阳总辐射 周期与季节变化 日照时数 成因初步分析 

分 类 号：P422.1[天文地球—大气科学及气象学]