资源与生态学报 ›› 2014, Vol. 5 ›› Issue (2): 132-138.DOI: 10.5814/j.issn.1674-764x.2014.02.005

• 论文 • 上一篇    下一篇

中国太阳总辐射的气候学计算法研究

王晨亮1,2, 岳天祥1, 范泽孟1   

  1. 1 中国科学院 地理科学与资源研究所 资源与环境信息系统国家重点实验室, 北京 100101;
    2 中国科学院大学, 北京 100049
  • 收稿日期:2013-12-09 修回日期:2014-03-31 出版日期:2014-06-18 发布日期:2014-06-06
  • 通讯作者: YUE Tianxiang. Email:yue@lreis.ac.cn.

Solar Radiation Climatology Calculation in China

WANG Chenliang1,2, YUE Tianxiang1, FAN Zemeng1   

  1. 1 State Key Laboratory of Resources and Environment Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2013-12-09 Revised:2014-03-31 Online:2014-06-18 Published:2014-06-06
  • Contact: YUE Tianxiang. Email:yue@lreis.ac.cn.
  • Supported by:

    National Key Technologies R & D Program of China (2013BAC03B05); National High-tech R & D Program of China (2013AA122003).

摘要: Angstrom-Prescott公式的气候学计算法是应用较广的太阳辐射模拟方法,其系数一般通过线性回归确定。近年来,许多研究显示该系数存在明显的空间变异性,常见的解决方法是将研究区划分子区域逐个拟合。本研究采用1961-2010时段日照时数与太阳辐射站点资料,以天文辐射为起始值,基于地理加权回归得到全国尺度连续变化的Angstrom-Prescott系数。通过高精度曲面建模方法(HASM)构建的日照时数资料和天文辐射曲面,得到国家尺度太阳辐射曲面。空间非平稳和误差比较检验等结果表明,系数存在显著的空间非平稳性;与已有研究相比,本研究的模拟方法效果较好。

关键词: 太阳总辐射, 天文辐射, 地理加权回归, 空间非平稳性, Angstrom-Prescott公式, HASM

Abstract: The Angstrom-Prescott formula is commonly used in climatological calculation methods of solar radiation simulation. Fitting the coefficients is carried out using linear regression and in recent years it has been found that these coefficients have obvious spatial variability. A common solution is to divide the study area into several subregions and fit the coefficients one by one. Here, we use ground observation data for sunshine hours and solar radiation from 1961 to 2010. Adopting extraterrestrial radiation as the initial value, Angstrom-Prescott coefficients are obtained by Geographically Weighted Regression at a national scale. The surfaces of solar radiation are obtained on the basis of the surfaces of sunshine hours interpolated by high accuracy surface modeling and astronomical radiation; results from spatially nonstationary and error comparison tests show that Angstrom-Prescott coefficients have significant spatial nonstationarity. Compared to existing research methods, the method presented here achieves a better simulation effect.

Key words: total solar radiation, extraterrestrial radiation, Geographically Weighted Regression, spatial nonstationarity, Angstrom-Prescott formula, HASM, climatology