The reason of strong solar radiation in Weining county

There are four main factors that affect the intensity of solar radiation: one is latitude position. Solar radiation gradually decreases from low latitude to high latitude; Second, the weather. The fewer clouds, the stronger the solar radiation; Third, altitude. The higher the altitude, the stronger the solar radiation; Fourth, sunshine time. The longer the sunshine, the stronger the solar radiation. Weining Autonomous County, known as Sunshine City, is located in Yunnan-Guizhou Plateau and has the above four conditions.