Chinese scientific expedition team completes second lake sampling in Tibet(1/3)

China's second Tibetan Plateau scientific expedition team completes its sampling work at Jieze Caka, a lake at the altitude of 4, 500 meters in Ali Prefecture, southwest China's Tibet Autonomous Region, July 22, 2021. Samples like sediment cores in the lake have been collected by the team. (Photo: China News Service/Sun Zifa)

China's second Tibetan Plateau scientific expedition team arrives at its third destination, Jieze Caka, a lake at the altitude of 4, 500 meters in Ali Prefecture, southwest China's Tibet Autonomous Region, July 20, 2021. The scenery along the way to Jieze Caka is beautiful. (Photo: China News Service/Sun Zifa)

China's second Tibetan Plateau scientific expedition team works at Jieze Caka, a lake at the altitude of 4, 500 meters in the Ali Prefecture, southwest China's Tibet Autonomous Region, July 21, 2021. (Photo: China News Service/Sun Zifa)