1970-2021年河池市太阳总辐射时空变化特征分析
Analysis of spatiotemporal variation characteristics of total solar radiation in Hechi from 1970 to 2021
黄秀秀 1莫迪 1谭佳勇 2谭苏1
作者信息
- 1. 河池市气象局,广西 河池 547000
- 2. 金城江区气象局,广西 河池 547000
- 折叠
摘要
利用1970-2021年河池市气象观测及地理信息等数据,根据太阳辐射气候学估算模型,采用统计学、Mann-Kendall突变检验和小波分析等方法,分析河池市太阳总辐射时空变化特征.结果表明,1970-2021年河池市年太阳总辐射呈现"下降-上升"趋势,年际波动总体平稳.春、夏、秋、冬四个季节均出现"变暗"和"变亮"交替过程,但各年代际变化的趋势不同,且春夏波动较为明显.年太阳总辐射在1981年发生突变.太阳总辐射变化的主周期为30 a,且呈现"多-少"周期性震荡变化.太阳能资源时空分布不均,存在空间和季节分布差异,年平均太阳总辐射在3 665.6～4 390.7MJ·m-2之间,高值区在巴马,低值区在天峨,呈现南部向西北部逐渐减小特征.各季节太阳总辐射从大到小排到为夏季、秋季、春季、冬季.
Abstract
Based on the meteorological and geographic information data of Hechi City from 1970 to 2021,the spatiotemporal variation characteristics of the total solar radiation in Hechi City were analyzed according to the climatological estimation model of solar radiation and the methods of linear regression,anomaly analysis,Mann-Kendall mutation test and wavelet analysis.The results show that the annual total solar radiation in Hechi City presents a"decreasing-increasing"trend from 1970 to 2021,with generally stable interannual fluctuations.The four seasons show alternating processes of"darkening"and"brightening",but the trends of interdecadal change are different,and the fluctuations are more obvious in spring and summer.The total solar radiation experiences an abrupt change in 1981.The main period of the total solar radiation in Hechi City is 30 years,and it exhibits"more-less"periodic oscillations.The spatial and temporal distribution of solar energy resources in Hechi City is uneven,and there are differences in spatial and seasonal distribution,with the annual average total solar radiation ranging from 3 665.6 to 4 390.7 MJ·m-2,and the high value area being in Bama and the low value area being in Tian'e,exhibiting a gradual decrease from the south to the northwest part of the city.The total solar radiation in each season from largest to smallest is summer,autumn,spring and winter.
关键词
太阳总辐射/时空变化特征/Mann-Kendall检验/小波分析Key words
total solar radiation/spatiotemporal variation/Mann-Kendall test/wavelet analysis引用本文复制引用
基金项目
广西壮族自治区重点研发计划(桂科AB22035069)
河池重点研发计划(河科AB220704)
广西壮族自治区气象科研计划(桂气科2023M25)
河池市气象科研计划(202307)
出版年
2024
国家科技期刊平台
NSTL
万方数据