中国农业气象

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逐日太阳辐射的模拟计算

童成立,张文菊,汤阳,王洪庆   

  1. 中国科学院亚热带农业生态研究所亚热带农业生态重点实验室,中国科学院亚热带农业生态研究所亚热带农业生态重点实验室,中国科学院亚热带农业生态研究所亚热带农业生态重点实验室,美国佛罗里达农工大学环境科学研究所 长沙410125 ,长沙410125,华中农业大学资源环境学院 ,长沙410125
  • 出版日期:2005-06-10 发布日期:2005-06-10
  • 基金资助:
    中国科学院知识创新工程项目(KZCX3-SW-426,KZCX1-SW-01-14);; 国家自然科学重点项目(40235057)

Estimation of Daily Solar Radiation in China

TONG Cheng-li~(1),ZHANG Wen-ju~(1,2),TANG Yang~(1) (1.Key Laboratory of Subtropical Agro-ecology, Institute of Subtropical Agriculture, CAS, Changsha 410125, China; 2.College of Resource and Environment, Huazhong Agriculture University)   

  • Online:2005-06-10 Published:2005-06-10

摘要: 在分析国内外太阳辐射估算方法的基础上,建立了一种简单实用、易操作的模拟逐日太阳辐射的方法,仅需要输入站点的日照时数和地理信息。对我国不同区域9个代表站点的模拟结果与实际观测结果进行比较与统计检验,结果表明:模拟值与实测值之间相关显著(相关系数为0.81~0.93),模拟得到的晴空辐射值与多年实际观测最大值基本一致。该模拟方法的平均误差为16.5%,平均偏差、平均绝对偏差和均方根偏差分别为0.77、2.09和2.65MJ.m-2.d-1。但此方法对于特定环境区域的模拟参数还需调整。

关键词: 逐日太阳辐射, 晴空辐射, 日照时数, 模拟

Abstract: Based on analysis of the different kinds of calculation methods on solar radiation, a simple, practical and easy operative model was built to estimate daily solar radiation in China. The inputs of the model needed were the sunshine hours and geological information of calculating stand. The simulated results for 9 representative stations in the different regions of China were compared and statistically validated with the observation values. The results showed that the simulated solar radiations had significantly related to the observation values (R~(2)=0.81-0.93). The average error of calculation was 16.5%, the average absolute and the standard deviation were 0.77, 2.09 and 2.65 MJ m~(-2) d~(-1) respectively. The simulation parameters needed to be adjusted in the special regions.

Key words: Daily solar radiation, Daily solar radiation, Clear sky radiation, Sunshine hour, Simulation