​Surveyors from a team attempting to remeasure the height of the world's tallest peak Mt Qomolangma have arrived at their base camp at a height of 7,028 meters. No problems have been reported so far. (Photo by Ciluo, Awangzhandui, compiled by Shi Kaidi)

​Surveyors from a team attempting to remeasure the height of the world's tallest peak Mt Qomolangma have arrived at their base camp at a height of 7,028 meters. No problems have been reported so far. (Photo by Ciluo, Awangzhandui, compiled by Shi Kaidi)

​Surveyors from a team attempting to remeasure the height of the world's tallest peak Mt Qomolangma have arrived at their base camp at a height of 7,028 meters. No problems have been reported so far. (Photo by Ciluo, Awangzhandui, compiled by Shi Kaidi)

​Surveyors from a team attempting to remeasure the height of the world's tallest peak Mt Qomolangma have arrived at their base camp at a height of 7,028 meters. No problems have been reported so far. (Photo by Ciluo, Awangzhandui, compiled by Shi Kaidi)