Climatic causes of Colorado Grand Canyon

The two valleys of the Colorado Grand Canyon are dry and hot, presenting a desert landscape with a tropical desert climate. Reason: 1. Located in the tropics, with high temperature all year round; 2. Controlled by subtropical high all the year round, downdraft prevails and the air is dry and hot; 3. The valley area is easy to collect heat; 4. The surrounding tropical desert climate area is affected by the cold current, and the climate is dry, so it is difficult to moisten the canyon.