中国大陆Himawari-9短波辐射数据适用性研究

黄洋; 李翠娜; 汪翔; 戴铁; 石锐; 孙豪

doi:doi:10.19912/j.0254-0096.tynxb.2024-1705

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中国大陆Himawari-9短波辐射数据适用性研究

更新时间：2026-03-06

- 中国大陆Himawari-9短波辐射数据适用性研究
- Vol. 47, Issue 2, Pages: 235-243(2026)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：doi:10.19912/j.0254-0096.tynxb.2024-1705
  CLC： TK51
- Online First：05 March 2026，
  
  Published：05 March 2026
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黄洋, 李翠娜, 汪翔, et al. 中国大陆Himawari-9短波辐射数据适用性研究[J]. 2026, 47(2): 235-243.
DOI：

黄洋, 李翠娜, 汪翔, et al. 中国大陆Himawari-9短波辐射数据适用性研究[J]. 2026, 47(2): 235-243. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1705.

摘要

利用2023年中国136个辐射站逐小时总辐射对Himawari-9短波辐射进行多时空尺度评估

结果表明：1）全国平均日内变化上

08:00—18:00期间Himawari-9短波辐射与地基总辐射的相关系数（Corr）均超过0.85

呈单峰型分布

09:00和10:00最高;均方根误差（RMSE）日内变化同样呈单峰型分布

15:00最高;平均偏差（Bias）呈双峰型分布

峰值分别出现在10:00和15:00。2）全国平均年内变化上

Corr呈双峰型分布

两个峰值分别出现在4和10月份;RMSE呈单峰型分布

夏季（7—8月份）最高

均超过了100 W/m²

秋冬季节的RMSE较低;Bias为单峰型分布

春季最高

12月份Bias最低。3）空间分布上

中国中部和东部地区的Corr较高

北方和高原地区部分站点的Corr较低;中部和东部地区为RMSE低值区

这些区域Himawari-9短波辐射高于地基总辐射

西部、北部和高原地区为RMSE高值区

Himawari-9短波辐射低于地基总辐射。4）进一步分析海拔高度对Himawari-9短波辐射质量的影响

整体上随海拔高度增加

Corr减小

RMSE增大

在海拔高度低于2000 m的地区Himawari-9短波辐射整体高于地基总辐射

高于2000 m的地区Himawari-9短波辐射存在对低辐照度高估、对高辐照度低估的特征;通过不同卫星仰角分组评估表明

在中低海拔地区

RMSE呈单谷型分布

仰角在20°~25°时

RMSE最低

仰角低于20°时

Bias为负值

随仰角增加

Bias转为正值并逐渐增大

高海拔地区在仰角低于35 °时

评估结果差异较小

仰角大于35°

Corr最低

RMSE最高。

Abstract

A multi-temporal and spatial scale evaluation of Himawari-9 shortwave radiation data is conducted using hourly total radiation measurements from 136 ground-based radiation stations across China in 2023. The results show that： 1） On a national average diurnal variation

during 08:00—18:00

the correlation coefficient （Corr） between the Himawari-9 shortwave radiation data and the ground-based radiation data exceeds 0.85

displaying a unimodal distribution. The highest correlation occurs at 09:00 and 10:00

both reaching 0.95

while the lowest occurs at 19:00

with a value of 0.77. The root mean square error （RMSE） also shows a unimodal pattern

with the highest RMSE at 15:00

reaching 119.19 W/m²

and the lowest at 08:00

only reaching 49.73 W/m². The bias exhibits a bimodal distribution

with peaks at 10:00 and 15:00. The highest bias occurs at 15:00

reaching 49.63 W/m²

and at 10:00 it is 18.46 W/m². The lowest bias is observed at 19:00

with a value of 0.04 W/m². 2） On a national average annual variation

the correlation coefficient displays a bimodal distribution

but there is little variation between months. The two peak values appear in April and October

both at 0.96. The RMSE shows a unimodal distribution

peaking in summer （July-August） with values exceeding 100 W/m²

while lower values are observed in autumn and winter. The bias follows a unimodal distribution

with the highest values in spring. In March and April

the bias exceeds 25 W/m²

and the lowest value occurs in December

at 6.68 W/m². 3） Spatially

higher correlation values are concentrated in central and eastern China

while lower values are found at some stations in northern and plateau regions. Central and eastern regions are low RMSE areas

where Himawari-9 shortwave radiation data exceeds ground-based radiation data

while western

northern

and plateau regions are high RMSE areas

where Himawari-9 shortwave radiation data is lower than ground-based radiation data. 4） Further analysis of the impact of altitude on the quality of Himawari-9 shortwave radiation data shows that

overall

as altitude increases

the correlation coefficient decreases

and RMSE increases. In regions below 2000 m

Himawari-9 shortwave radiation data generally exceeds ground-based measurements

while in regions above 2000 m

Himawari-9 shortwave radiation data tends to overestimate low irradiance and underestimate high irradiance. Grouping by satellite zenith angle reveals that

in low- to mid-altitude regions

RMSE shows a single-valley distribution. At zenith angles between 20° and 25°

RMSE is the lowest. When the zenith angle is below 20°

the bias is negative

but as the zenith angle increases

the bias becomes positive and gradually increases. In high-altitude regions

there is little difference when the zenith angle is below 35°

but when it exceeds 35°

the correlation coefficient is the lowest

and RMSE is the highest.

关键词

Keywords

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