Fig. 2

The annual precipitation and average annual temperatures in northern Xinjiang from 1962–2012. The annual precipitation and average annual temperature are shown in (a) and (b), respectively. All the data came from eight international surveillance sites (Jinghe, Qitai, Altay, Fuyun, Hefeng, Karamay, Yining, and Urumqi) in northern Xinjiang and were collected from 1962–2012. The raw data are from the China Meteorological Data Sharing Service System (http://cdc.cma.gov.cn/) and were analyzed using Sigma Plot software