![](http://www.ecns.cn/hd/2019/12/30/42b7e034eb6f43b89889334be5eef47f.jpg)
Aerial photo taken on Dec. 27, 2019 shows the Qinghai Lake in northwest China's Qinghai Province. The Qinghai Lake went into a "frozen period" in mid-December. (Xinhua/Wu Gang)
![](http://www.ecns.cn/hd/2019/12/30/8c5f9ba420644b69ba30a639bfdf4b1e.jpg)
Aerial photo taken on Dec. 27, 2019 shows the Qinghai Lake in northwest China's Qinghai Province. The Qinghai Lake went into a "frozen period" in mid-December. (Xinhua/Wu Gang)
![](http://www.ecns.cn/hd/2019/12/30/cf6677f33c6e45f6bad4c632eac637a2.jpg)
Aerial photo taken on Dec. 27, 2019 shows the Qinghai Lake in northwest China's Qinghai Province. The Qinghai Lake went into a "frozen period" in mid-December. (Xinhua/Wu Gang)
![](http://www.ecns.cn/hd/2019/12/30/e77ad3b8fc9347d5b103e8ecfff8b91b.jpg)
Aerial photo taken on Dec. 27, 2019 shows the Qinghai Lake in northwest China's Qinghai Province. The Qinghai Lake went into a "frozen period" in mid-December. (Xinhua/Wu Gang)
![](http://www.ecns.cn/hd/2019/12/30/409e509c69634f08b4b4aff0b315c016.jpg)
Aerial photo taken on Dec. 27, 2019 shows the Qinghai Lake in northwest China's Qinghai Province. The Qinghai Lake went into a "frozen period" in mid-December. (Xinhua/Wu Gang)
![](http://www.ecns.cn/hd/2019/12/30/202d95a9f3fb4e90806f9a850e474a29.jpg)
Aerial photo taken on Dec. 27, 2019 shows the Qinghai Lake in northwest China's Qinghai Province. The Qinghai Lake went into a "frozen period" in mid-December. (Xinhua/Wu Gang)
![](http://www.ecns.cn/hd/2019/12/30/984032d6bd8b4e4cb453567111afec9e.jpg)
Aerial photo taken on Dec. 27, 2019 shows the Qinghai Lake in northwest China's Qinghai Province. The Qinghai Lake went into a "frozen period" in mid-December. (Xinhua/Wu Gang)