Chengdu is about 100 kilometers away from Gongga Snow Mountain. You can sometimes see it from such a distance. Why? Is human vision that far away?

This has a lot to do with the geographical environment of Chengdu and the altitude of Gongga Mountain.

Chengdu is located in the western part of the Sichuan Basin. Due to the huge vertical height difference, Chengdu has formed a unique landform type of one-third plains, one-third hills, and one-third mountains within the city. The terrain gradually rises from Chengdu to Gongga Mountain. In addition, the main peak of Gongga Mountain stands on the top of the peaks. With an altitude of 7556 meters, it is the highest mountain in Sichuan Province. It is entirely possible to see Gongga under good weather conditions. Of snowy mountains.

Extended information:

The climate in the Gongga Mountain area is deeply affected by altitude. The temperature decreases with increasing altitude, while the precipitation increases with increasing altitude. According to the analysis of many years of observation data, the annual average temperature decrease rate on the east slope is 0.67°C/100 meters, and the annual precipitation gradient value is 67.5 mm/100 meters. That is, for every 100 meters of elevation increase, the temperature decreases by 0.67°C and the precipitation increases by 67.5 mm. .

The precipitation gradient above 3,000 meters above sea level may fluctuate, but the annual precipitation in the snowline zone may reach 3,000 mm, still showing an increasing trend.