Characteristics of runoff changes and their climatic factors in two different glacier-fed basins

Figures & data

Figure 1. Location of Urmuqi River Basin, Yanggong River Basin, and hydrological/meteorological stations.

Table 1. List of data sources in this study.

Basin	Data Type	Period	Data Source
Yanggong River Basin	Annual runoff	1979 to 2017	Mujiaqiao hydrologica stations and related articles (Fang et al. 2019)
	Monthly runoff	1979.01 to 2017.12
	Daily precipitation	1979.01.01 to 2017.12.31	Lijiang automatic weather stations (http://data.cma.cn/)
	Daily average temperature
	Mass balance of the Baishui River Glacier No. 1	1979 to 2017	Yulong Snow Mountain Cryosphere and Sustainable Development Observation and Research Station (Yan et al. 2021)
Urumqi River Basin	Annual runoff	1979 to 2017	Yingxiongqiao hydrologica stations and related articles (Ding et al. 2016)
	Monthly runoff	1979.01 to 2013.12
	Daily precipitation	1979.01.01 to 2017.12.31	Daxigou automatic weather stations (http://data.cma.cn/)
	Daily average temperature
	Mass balance of the Urumqi Glacier No. 1	1979 to 2017	Tianshan Glacier Observation and Experiment Station of Chinese Academy of Sciences and related articles (Li et al. 2020)

Figure 2. Interannual variation of runoff in the Yanggong River Basin and Urmuqi River Basin from 1979 to 2017.

Figure 3. Variations of monthly runoff in the Yanggong River Basin (a) and Urmuqi River Basin (b).

Figure 4. Interannual variation of precipitation in the Lijiang and Daxigou automatic weather stations from 1979 to 2017.

Table 2. Pearson correlation coefficient between monthly runoff and meteorological factors in the Yanggong River Basin and Urmuqi River Basin.

Time	Yanggong River Basin				Urumqi River Basin
	Precipitation	p-value	Temperature	p-value	Precipitation	p-value	Temperature	p-value
January	0.24	0.14	0.06	0.73	−0.062	0.723	0.044	0.801
February	−0.15	0.38	0.03	0.87	0.094	0.593	0.249	0.150
March	0.31	0.06	−0.28	0.09	−0.101	0.562	0.221	0.202
April	0.09	0.57	0.42**	0.01	0.134	0.442	0.466**	0.005
May	0.61**	0.00	−0.36*	0.03	−0.002	0.990	0.072	0.679
June	0.73**	0.00	−0.51**	0.00	0.306	0.074	0.353*	0.038
July	0.86**	0.00	−0.44**	0.01	0.431**	0.010	0.337*	0.048
August	0.78**	0.00	−0.36*	0.03	0.345*	0.043	0.120	0.493
September	0.55**	0.00	–0.35*	0.03	0.335*	0.049	0.201	0.246
October	0.70**	0.00	–0.39*	0.02	0.030	0.862	0.175	0.314
November	0.38	0.02	0.07	069	0.446**	0.007	0.218	0.209
December	−0.07	0.68	−0.13	0.43	0.210	0.227	0.034	0.846
Annual	0.84**	0.00	−0.12	0.46	0.173	0.299	0.493**	0.002

Note. ** and * indicate a significant correlation at the .01 and .05 level, respectively.

Figure 5. Interannual variation of temperature in the Lijiang and Daxigou automatic weather stations from 1979 to 2017.

Figure 6. Interannual variation of mass balance in the Baishui River Glacier No. 1 and Urumqi Glacier No. 1 from 1979 to 2017.

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