Identification of the Factors Influencing the Baseflow in the Permafrost Region of the Northeastern Qinghai-Tibet Plateau

Qin, Jia; Ding, Yongjian; Han, Tao; Liu, Yuexia

doi:10.3390/w9090666

Cited by 23 publications

(17 citation statements)

References 26 publications

(38 reference statements)

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“…The result was also similar to those obtained by hydrograph separation, hydrology model, or isotope method in other basins in the Tibetan Plateau (G. Wang, Hu, and Li 2009;J. Zhou et al 2015;Qin et al 2017). Hence, the filter parameter α and time were set as 0.95 and three times, respectively, to calculate baseflow at Gongshan station, and the mean depth of annual total flow and baseflow in the study area were 395.3 and 257.7 mm, respectively.…”

Section: Relationship Between Baseflow Index and The Onset Date Of Cosupporting

confidence: 80%

Hydrological impacts of interannual variations in surface soil freezing processes in the upper Nu–Salween River basin

Luo

Fan

et al. 2020

Arctic, Antarctic, and Alpine Research

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The upper Nu-Salween River basin in the Tibetan Plateau is mainly covered with seasonal frozen soils. We used daily surface freeze-thaw states, detected from Special Sensor Microwave/Imager (SSM/I) daily brightness temperature data, to analyze the variations in surface freeze-thaw states and the relationship with air temperature. We also examined baseflow to explore the influences of interannual variations in the start time of soil freezing on hydrological processes. The results showed that (1) interannual air temperature fluctuations led to differences in the area and start time of surface freezing. When surface soil froze, flow was mainly dependent on existing groundwater storage. (2) The interannual variation in the surface freezing time directly affected the flow generation processes. When soil water froze and remained in the frozen layer, it was hard to generate surface flow, so flow mainly consisted of baseflow, causing the proportion of the baseflow in the total flow to gradually increase. (3) The surface freeze-thaw states obtained from the passive microwave remote sensing data may be applied to support further research on the hydrological impacts of freeze-thaw cycle variations in plateau mountain basins.

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Section: Relationship Between Baseflow Index and The Onset Date Of Cosupporting

confidence: 80%

Hydrological impacts of interannual variations in surface soil freezing processes in the upper Nu–Salween River basin

Luo

Fan

et al. 2020

Arctic, Antarctic, and Alpine Research

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“…The increase in baseflow may be mostly due to an increase in rainfall, and could be explained by fluctuations in both precipitation and temperature between TS1 and TS2. The freeze-thaw processes of the active layer could have changed the soil infiltration capacity and the volume of subsurface water storage, thus impacting baseflow as well [72].…”

Section: Combined Impacts Of Both Land Use Change and Climate Variationsmentioning

confidence: 99%

A Comparison of Streamflow and Baseflow Responses to Land-Use Change and the Variation in Climate Parameters Using SWAT

Aboelnour

Gitau

Engel

2020

Water

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Alteration of land use and climate change are among the main variables affecting watershed hydrology. Characterizing the impacts of climate variation and land use alteration on water resources is essential in managing watersheds. Thus, in this research, streamflow and baseflow responses to climate and land use variation were modeled in two watersheds, the Upper West Branch DuPage River (UWBDR) watershed in Illinois and Walzem Creek watershed in Texas. The variations in streamflow and baseflow were evaluated using the Soil and Water Assessment Tool (SWAT) hydrological model. The alteration in land use between 1992 and 2011 was evaluated using transition matrix analysis. The non-parametric Mann–Kendall test was adopted to investigate changes in meteorological data for 1980–2017. Our results indicate that the baseflow accounted for almost 55.3% and 33.3% of the annual streamflow in the UWBDR and Walzem Creek watersheds, respectively. The contribution of both land use alteration and climate variability on the flow variation is higher in the UWBDR watershed. In Walzem Creek, the alteration in streamflow and baseflow appears to be driven by the effect of urbanization more than that of climate variability. The results reported herein are compared with results reported in recent work by the authors in order to provide necessary information for water resources management planning, as well as soil and water conservation, and to broaden the current understanding of hydrological components variation in different climate regions.

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“…In addition, varied thermal states of the frozen soil differ in reducing the soil infiltration, which affects the effects of the infiltration of rain and snow meltwater. Meanwhile, snow cover or atmospheric energy exchange could indirectly affect the special hydrological characteristics of permafrost and the water balance; they jointly regulate baseflow and land surface hydrological cycle (Qin et al, 2017).…”

Section: New Insights and Novel Scientific Findingsmentioning

confidence: 99%

Cryospheric Hydrometeorology Observation in the Hulu Catchment (CHOICE), Qilian Mountains, China

Han

Chen

Liu

et al. 2018

Vadose Zone Journal

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Understanding cryospheric hydrology and the effects of cryospheric changes on river runoff is critical for sustainable water management especially in arid inland river basins such as those in northwest China where water resources mainly come from alpine areas. A cryospheric hydrometeorology observation system (CHOICE) has been established since 2008 in the Hulu catchment, which is a well-instrumented experimental and representative catchment in the upper reaches of the inland Hei River, Qilian Mountains, northwest China. The CHOICE includes dense meteorological measurements from 2980 to 4800 m asl (e.g. glacier, snow, and permafrost hydrology) and water and heat balance in the vertical landscape zones including alpine grassland, meadow, shrub, coniferous forest, marshy meadow, and moraine-talus zones. The comprehensive long-term observations available for the CHOICE provide the basis for model development and application in cryospheric hydrological research. We focus on cryospheric hydrometeorological process of precipitation, freeze-thaw cycle, energy balance, soil-vegetation-atmosphere transfer (SVAT), runoff, groundwater reservoir, and hydrological resiliency within vertical elevation in CHIOCE. Data from CHOICE, an open cryospheric hydrology observation and research system, is accessed through a website (http://hhsy.casnw.net/) and the WestDC database (http://westdc.westgis.ac.cn/).Serving as a solid reservoir for many endorheic and exorheic basins (Xiao et al., 2015), the mountain cryosphere is the regulator of major rivers and provides most of the water resources in arid regions in China and its neighboring countries. Moreover, the mountain cryosphere is very sensitive to climate change, and its changes can have significant impacts on the hydrological cycle and water resource management in arid endorheic basins. However, because of inadequate observation data and the lack of knowledge about many aspects of cryospheric hydrometeorology at regional scales in alpine regions, the significance of the impacts of cryospheric changes and the severity of their consequences remain unclear in China (Chen et al., 2015, 2018bLi et al., 2018). In alpine regions, the key goal is to understand environmental changes (Guo, 2018) and their effects (Qin and Xiao, 2009) using observations, models, and other techniques.As a result, a cryospheric hydrometeorology observation system has been established since 2008 in the Hulu Catchment (CHOICE) upstream of the Hei River Basin, Qilian Mountains, northwest China (Chen et al., 2014). The CHOICE is an integrated observation system used to observe alpine hydrometeorology in a small catchment with evident vertical landscape zones. Alpine meteorology, cryospheric hydrology, and water balance data on different land covers, groundwater, and streamflow are included. This paper provides an overview of the CHOICE.

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Identification of the Factors Influencing the Baseflow in the Permafrost Region of the Northeastern Qinghai-Tibet Plateau

Cited by 23 publications

References 26 publications

Hydrological impacts of interannual variations in surface soil freezing processes in the upper Nu–Salween River basin

Hydrological impacts of interannual variations in surface soil freezing processes in the upper Nu–Salween River basin

A Comparison of Streamflow and Baseflow Responses to Land-Use Change and the Variation in Climate Parameters Using SWAT

Cryospheric Hydrometeorology Observation in the Hulu Catchment (CHOICE), Qilian Mountains, China

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