摘要
选用2001～2010年广西桂林、南宁、北海3个地面太阳辐射站的总辐射资料及日照时数资料,分析了总辐射日总量、日最大值的年变化规律,时总量的日变化规律,日最大值出现时间频率的分布区间等,结果表明:(1)广西太阳总辐射的日总量、日最大值强度的年变化规律明显。总体呈现夏季最大,春秋季次之,冬季最小的特点。大多数情况下,随着纬度由北向南递减,总辐射值递增。日总量与日照时数的年变化趋势存在正向的线性相关。(2)广西太阳总辐射的时总量的日变化规律明显。总体呈现中午前后强,早晚弱的特点。最大值一般出现在一天中的10～14时这个区间。
Based on total solar radiation data and insolation duration informations from 2001 to 2010 in Guilin, Nanning and Beihai cities, the annual variation of daily total solar radiation , max daily solar radiation, the diurnal variation of hourly total solar radiation, the occurring frequency of max daily total solar radiation were all analyzed. The results show： 1 ） The annual variation of daily total solar radiation and max daily solar radiation of Guangxi is significant, with the highest （higher, low） value appearing in summer （spring and autumn, winter）.In most cases, total solar radiation increases with latitude decreasing. There is positive linear correlation between the annual variations of daily total solar radiation and insolation duration. 2） The diurnal variation of hourly total solar radiation is significant, with the max value generally appearing from 10 ： 00a.m. to 2 ： 00p.m.
出处
《气象研究与应用》
2012年第2期45-48,54,共5页
Journal of Meteorological Research and Application
关键词
地面太阳辐射
分布特征
人体健康
solar radiation, distribution characteristics, health
