Point solar radiation analysis of Jiamusi prefecture under different weather types based on ArcGIS

Considering the influence of the weather conditions to incoming solar radiation, this paper analyzes the relation among the sunshine, weather types, and radiation parameters, then divides them into 4 types of common weather (perfectly clear, generally clear, generally cloudy and perfectly cloudy). Diffuse model, diffuse proportion, and transitivity correspond to the different weather types. Taking Jiamusi prefecture as the study area, we use points solar radiation batch analysis tool in ArcGIS and analyze the daily incoming solar radiation of the Jiamusi radiation station. Two kinds of simulation results which are the one with the default parameters and the other under different weather types were compared with the Jiamusi radiation measured values in the station, the correlation of both R² of 0.5734 and 0.8995 respectively, through the analysis and verification. The results show that the point solar radiation analysis method with the different weather types is feasible and obtains the better daily solar radiation simulation than the default method. They can be beneficial to physical and biological processes model as the sun under different weather types affects them.