CONSTRUCTION AND APPLICATION OF CLEARSKY SOLAR RADIATION MODEL OVER COMPLEX TERRAIN

被引：0
|
作者：
Ding X. [1 ]
Zhang S. [1 ]
Jin C. [1 ]
机构：
[1] College of Geomatics, Xi’an University of Science and Technology, Xi’an
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2024年 / 45卷 / 04期
关键词：
atmospheric transmittance; MODIS atmospheric data; remote sensing; solar radiation; topography;
D O I：
10.19912/j.0254-0096.tynxb.2022-1961
中图分类号：
学科分类号：
摘要：
With the Tizinafu River Basin of Western China as the study area，the MODIS atmospheric data is used to estimate the spatial distribution of clear-sky atmospheric transmittance based on the Iqbal Model C，and the sky view factor（SVF）and remote sensing surface albedo data are introduced to calculate the topographic obstruction of scattered radiation and the spatial distribution of albedo coefficients of reflected radiation，respectively. Finally，combined with the direct radiation terrain shading effect of the Kumar model to improve the Kumar model. The improved model comprehensively considers the influence of the atmosphere and terrain on solar radiation. The spatial and temporal distribution of surface solar radiation in the study area is simulated and analyzed by the improved model，and the simulation results are verified based on the observation data from ground-based meteorological stations. The results show that the estimated values of the model and the observed values of the sites are in good agreement，with a correlation coefficient R2 of 0.96，a mean absolute error（MAE）of 1.47 MJ/m2，and a mean absolute relative error（MARE）of 12.26%. The simulation accuracy of the model is higher n spring，summer and autumn but lower in winter，which may be due to the underestimation of MODIS atmospheric data in winter. © 2024 Science Press. All rights reserved.
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页码：569 / 577
页数：8
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