雾霾对太阳辐射的影响研究——以北京市为例

Study on the Influence of Haze on Solar Radiation:Taking Beijing as an Example

雾霾会降低太阳辐射强度并影响辐射传输。本研究采用理论分析和Origin定量拟合分析,以北京市2023年季节性典型日为例,确定雾霾对太阳辐射强度的影响,定量分析雾霾对太阳辐射的削减,为减轻雾霾对太阳辐射的影响奠定基础。研究结果表明:北京市2023年春季典型日雾霾程度波动最大,辐射减弱26.72%;夏季典型日雾霾程度较春季波动较小,但辐射削减变大,为27.99%;秋季典型日雾霾程度波动最小,但雾霾对太阳辐射的影响最为严重,削减率达33.00%;冬季典型日雾霾对太阳辐射的削减最小,仅为10.00%。表明了随季节(气温)、时刻等宏观条件存在差异,雾霾对太阳辐射强度的影响也存在差异性,但通过高斯拟合发现二者保持高相关性。

Smog can reduce the intensity of solar radiation and affect radiation transmission.This study adopts theoretical analysis and Origin quantitative fitting analysis,and takes the seasonal typical days in Beijing in 2023 as an example to determine the impact of haze on solar radiation intensity and quantitatively analyze the reduction of solar radiation caused by haze,laying a foundation for reducing the impact of haze on solar radiation.The results show that the haze degree of typical days in 2023 in Beijing has the largest fluctuation,and the radiation decreases by 26.72%;the typical daily haze degree in summer fluctuated less than that in spring,but the radiation reduction was larger,which was 27.99%;in autumn,the haze degree fluctuated the least,but the haze had the most serious effect on solar radiation,with a reduction rate of 33.00%;typical daily haze in winter has the smallest reduction of solar radiation,only 10.00%.It shows that there are differences in macroscopic conditions such as season(temperature)and time,and the influence of haze on solar radiation intensity is also different,however,through Gaussian fitting,it is found that the two are still highly correlated.