Why is the weather in Qinghai-Tibet Plateau changeable?

The Qinghai-Tibet Plateau has high altitude, dry and thin air, strong solar radiation and low temperature. Due to the complex and changeable terrain, the climate itself on the Qinghai-Tibet Plateau also changes greatly with different regions. Generally speaking, there is less rainfall on the plateau.

The Qinghai-Tibet Plateau itself is also an important factor affecting the earth's climate. According to paleontology and geology, the uplift of the Qinghai-Tibet Plateau has greatly changed the global climate. As a tall wind screen, it effectively blocks the cold air from the northern mainland from entering South Asia. At the same time, the Himalayas blocked the warm and humid airflow from the south from advancing northward, which was an important factor causing the rainy season in South Asia.