摘要
针对太阳高度角尺度效应存在区域代表性问题,根据太阳高度角计算方法,用分布合理的样本数据计算区域太阳高度角最大偏差,归纳其规律特征。取得区域太阳高度角最大偏差与区域直径为正相关的近线性关系,当区域直径小于2000 km时,线性系数为0.0044882~0.0044966(°)/km,随着区域直径的增大,线性系数略微减小,相同区域的太阳高度角最大偏差的离散程度极小,区域太阳高度角最大偏差与区域直径为实质性相关,与监测地经纬度、监测日期和监测时间为弱相关。为太阳辐射的地域性或全球性地球系统模拟及地物反演把握太阳高度角区域代表性提供科学依据。
Facing the regional representation of solar elevation by scale effect,the maximum deviations of solar elevation in the regions are calculated with the sample data of reasonable distribution by the method of calculating solar elevation,and the rule of this deviation was also induced in accordance to the statistical methodology.When the regional diameter is less than 2000 km,the deviation is positive linear relation with the regional diameter with the coefficient of 0.0044882~0.0044966(°)/km.As the diameter increases,the linear coefficient decreases.If the two regions are in the same size,the deviation is minute as it is substantially related to the diameter while related weakly to the longitude and latitude,the date and the time of observation.The scientific evidence is provided for the regional rule of solar elevation in regional and global systematic simulation and ground object inversion.
作者
张行清
卢伟萍
李玉红
谭孟祥
Zhang Xingqing;Lu Weiping;Li Yuhong;Tan Mengxiang(Remote Sensing Application and Testing Base of NSMC,Nanning 530022,China;Guangxi Meteorological Disaster Mitigation Institute,Nanning 530022,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2020年第7期196-201,共6页
Acta Energiae Solaris Sinica
基金
公益性行业(气象)科研专项项目(GYHY201406030,GYHY201506017)。
关键词
太阳辐射
高度角
偏差
规律
特征
线性
solar radiation
elevation
deviation
rule
characteristics
linear
