The UV-A and UV-B data of the baseline radiation observatory of the Akedala Atmospheric Background Station were used to analyze the characteristics of UV and UV-B in Akedala and the variation characteristics of different cloud cover and precipitation processes.The results show that the total annual UV radiation at Akedala Atmospheric Background Station reaches 321.1 MJ·m-2 throughout the year,with an annual average daily exposure of 0.88 MJ·m-2,an annual UV-B exposure of 5.3 MJ·m-2,and an annual average of UV radiation as a proportion of the annual average of total radiation of 5.6%.Seasonal changes in the intensity of UV and UV-B radiation were summer>spring>autumn>winter.UV radiation exposure in summer was 2.79 times higher than in winter;UV-B average daily exposure in summer was 8.10 times higher than that in winter.Snow accumulation caused an increase in UV radiation and the ratio of UV-B to total radiation,and the average values of the ratio of UV-B to total radiation in snowy and non-snowy periods were 6.53%and 5.83%,respectively,and snow accumulation increased UV-B radiation on the ground by 25.89%.
维普
万方数据