福建省地形反射辐射的模拟计算及分布特征  

Simulation Calculation and Distribution Characteristics of Terrain Reflecting Radiation in Fujian Province

作　　者：游立杭 文明章[2] 林秀芳[2] 

机构地区：[1]福建省气象服务中心,福建福州350001 [2]福建省气候中心,福建福州350001

出　　处：《安徽农业科学》2011年第16期9881-9883,9904,共4页Journal of Anhui Agricultural Sciences

摘　　要：[目的]研究福建省地形反射辐射的分布特征。[方法]利用福建省太阳辐射资料、数字高程模型（DEM）数据和地面气象观测资料,结合遥感反演的地表反照率,对1988~2007年福建省地形反射辐射进行分布式模拟,并研究其时空分布特征。[结果]福建省地形反射辐射量的模拟结果是可信的。福建省地形反射辐射量7月最高（约160 MJ/m2）,1月最低（约60 MJ/m2）,5~8月的辐射量明显高于其他月份,各季节地形反射辐射量的变化趋势为夏季〉春季〉秋季〉冬季,复杂的起伏地形对其分布影响较大,特别是在太阳高度角较小的秋、冬季节影响尤为明显;福建省地形反射辐射量主要集中在100 MJ/m2以下,地形反射辐射量的高值区主要集中在闽北的宁德、三明、南平,全省最高值位于宁德市霞浦县的东安岛,接近630 MJ/m2,有较好的利用价值。[结论]该研究为我国复杂地形下太阳能资源的开发利用提供了理论依据。[Objective] The aim was to study the distribution characteristics of terrain reflecting radiation in Fujian Province.[Method] Based on solar radiation data,digital elevation model（DEM） and surface meteorological observation data in Fujian,plus surface albedo obtained by using remote sensing inversion method,the distribution of terrain reflecting radiation in Fujian Province from 1988 to 2007 was simulated,and then its temporal and spatial distribution characteristics was studied.[Result] The simulation results of terrain reflecting radiation in Fujian Province was credible.Terrain reflecting radiation in Fujian Province was the highest in July（about 160 MJ/m2） and lowest in January（about 60 MJ/m2）,and it was obviously higher from May to August compared with other months,while the order of terrain reflecting radiation in four seasons was summerspringautumnwinter,and complex terrain affected the distribution of terrain reflecting radiation greatly,especially in autumn and winter when sun elevation angle was small;terrain reflecting radiation in most area of Fujian Province was below 100 MJ/m2,and it was high in Ningde,Sanming and Nanping in northern Fujian,while the maximum value（630 MJ/m2） could be found in Dong＇an Island in Xiapu County in Ningde City,with good utilization value.[Conclusion] The study could provide theoretical foundation for the development and utilization of solar energy resources under complex terrain in China.

关 键 词：地形反射辐射 分布式模拟 空间分布 起伏地形 地形开阔度 

分 类 号：S126[农业科学—农业基础科学]