顾及时空异质性的地表太阳辐射观测网格划分

庄舒仪; 卜强生; 罗飞; 张潼; 叶志刚; 郭野

doi:10.19912/j.0254-0096.tynxb.2024-0185

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (6) : 501-509. DOI: 10.19912/j.0254-0096.tynxb.2024-0185

顾及时空异质性的地表太阳辐射观测网格划分

庄舒仪, 卜强生, 罗飞, 张潼, 叶志刚, 郭野

作者信息 +

GRID DIVISION FOR SURFACE SOLAR RADIATION OBSERVATIONS BY CONSIDERING ITS SPATIOTEMPORAL HETEROGENEITY

Zhuang Shuyi, Bu Qiangsheng, Luo Fei, Zhang Tong, Ye Zhigang, Guo Ye

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文章历史 +

摘要

以江苏省为例,探索结合地表太阳辐射遥感反演数据与高斯混合模型的区域连续网格划分方案。研究证实,遥感反演得到的小时辐射数据在江苏省具有较高的精度,其总辐射和散射辐射与地面观测数据的相关系数分别达到0.95和0.89;此外,时空连续的遥感估计准确地揭示了区域内总辐射和散射辐射的空间差异及其逐月变化。以逐月序列作为太阳辐射分区的基础,测试在不同最大分区数约束下高斯混合模型分区结果的信息熵和实际分区数的变化,发现在江苏省构建100~208个连续分区较为合适。随着分区数的增加,分区的粒度变得更细,分区方案由主要揭示辐射总量的差异演化为同时兼顾辐射总量和变化特征的差异。

Abstract

This study, taking Jiangsu Province as an example, explores a regional continuous grid division scheme by combining remote sensing-based surface solar radiation data with Gaussian mixture models. The research confirms that the hourly radiation data obtained from remote sensing inversion has high accuracy in Jiangsu Province in comparison to ground observations, with correlation coefficients of 0.95 and 0.89 for the global and diffuse radiation, respectively. In addition, the spatiotemporally continuous estimates accurately reveal the spatial differences and monthly variations in both global and diffuse radiation within the region. Using monthly sequences as the basis for solar radiation zoning, this study checks the changes in information entropy and actual zone number of the zoning result of Gaussian mixture model under different maximum zone number constraints, finding that constructing 100 to 208 continuous zones in Jiangsu Province is appropriate. As the zone number increases, the zoning granularity becomes finer, and the zoning scheme evolves from mainly revealing differences in the amount of surface radiation to concurrently considering differences in both the amount and variations.

导出引用

庄舒仪, 卜强生, 罗飞, 张潼, 叶志刚, 郭野. 顾及时空异质性的地表太阳辐射观测网格划分[J]. 太阳能学报. 2025, 46(6): 501-509 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0185

Zhuang Shuyi, Bu Qiangsheng, Luo Fei, Zhang Tong, Ye Zhigang, Guo Ye. GRID DIVISION FOR SURFACE SOLAR RADIATION OBSERVATIONS BY CONSIDERING ITS SPATIOTEMPORAL HETEROGENEITY[J]. Acta Energiae Solaris Sinica. 2025, 46(6): 501-509 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0185

中图分类号： TK519

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