2.2. Precipitation data
Historical precipitation data for the period 1960 to 2012 at the study
site was derived from the China Meteorological Forcing Dataset (CMFD; He
and Yang, 2011). The CMFD was developed by the Institute of Tibetan
Plateau Research, Chinese Academy of Science, and include data on air
temperature, air pressure, relative humidity, wind speed, downward
short-wave radiation, downward long-wave radiation and precipitation at
the land surface. The datasets are available via the following
link:http://westdc.westgis.ac.cn/data/7a35329c-c53f-4267-aa07-e0037d913a21.
The precipitation data during the study period (2014-2016) were recorded
by a portable weather station (AR5, Avolon Scientific, USA) located at
the study site. The data logger recorded primary meteorological
variables including precipitation, wind speed, solar radiation, air
temperature and relative humidity every 30 min.