Knowledge points of aerial photography on Qinghai-Tibet Plateau in China

The Qinghai-Tibet Plateau occupies the roof of the world with its majestic momentum of "the highest, the largest and the youngest". It is magnificent and mysterious, which fascinates countless scientists, writers, historians, philosophers and other people from all walks of life. The magnificent land becomes mysterious under the wings, and the route flying over the earth and the roof of the world presents not only beautiful scenery, but also endless culture.

The plane flies in the air, and it doesn't follow a straight line as we thought. On the flight route, it will pass through several cities. The plane must receive the signal over the city and press the "point" to reach its destination. So between the cities on the route, the plane flies in a straight line, but the whole route follows a tortuous trajectory. Four routes enter the Qinghai-Tibet Plateau, such as a ladder leading from low altitude to the roof of the world. The Sichuan-Tibet route has entered the first step from the second step of China's topography. Photographer Li Jian spent several years completing his trip to the roof of the world.