Next Article in Journal
Use of Heavy Metal Content and Modified Water Quality Index to Assess Groundwater Quality in a Semiarid Area
Previous Article in Journal
Vegetable Crops Grown under High Soil Water Availability in Mediterranean Greenhouses
Article

Impacts of Hydrological Processes on Stream Temperature in a Cold Region Watershed Based on the SWAT Equilibrium Temperature Model

1
Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada
2
Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E9, Canada
*
Author to whom correspondence should be addressed.
Water 2020, 12(4), 1112; https://doi.org/10.3390/w12041112
Received: 18 March 2020 / Revised: 27 March 2020 / Accepted: 11 April 2020 / Published: 14 April 2020
(This article belongs to the Section Water Quality and Contamination)
Variance in stream temperature from historical norms, which reflects the impacts from both hydrological and meteorological factors, is a significant indicator of the stream ecosystem health. Therefore, it is imperative to study the hydrological processes controlling stream temperature in the watershed. The impacts of hydrological processes on stream temperature in the cold region of Western Canada were investigated based on the previously developed Soil and Water Assessment Tool (SWAT) equilibrium temperature model. The model was calibrated and validated for streamflow and stream temperature based on the observations and a global parameter sensitivity analysis conducted to identify the most important hydrological process governing the stream temperature dynamics. The precipitation and air temperature lapse rates were found to be the most sensitive parameters controlling the stream temperature, followed by the parameters regulating the processes of soil water dynamics, surface runoff, and channel routing. Our analysis showed an inverse relationship between streamflow volume and stream temperature, and different runoff components have different impacts on temporal regimes of stream temperatures. This study elaborates on the response of the stream temperature to changes in hydrological processes at the watershed scale and indicates that hydrological processes should be taken into account for prediction of stream temperatures. View Full-Text
Keywords: parameter sensitivity analysis; heat transfer; climate change; runoff composition parameter sensitivity analysis; heat transfer; climate change; runoff composition
Show Figures

Figure 1

MDPI and ACS Style

Du, X.; Goss, G.; Faramarzi, M. Impacts of Hydrological Processes on Stream Temperature in a Cold Region Watershed Based on the SWAT Equilibrium Temperature Model. Water 2020, 12, 1112. https://doi.org/10.3390/w12041112

AMA Style

Du X, Goss G, Faramarzi M. Impacts of Hydrological Processes on Stream Temperature in a Cold Region Watershed Based on the SWAT Equilibrium Temperature Model. Water. 2020; 12(4):1112. https://doi.org/10.3390/w12041112

Chicago/Turabian Style

Du, Xinzhong, Greg Goss, and Monireh Faramarzi. 2020. "Impacts of Hydrological Processes on Stream Temperature in a Cold Region Watershed Based on the SWAT Equilibrium Temperature Model" Water 12, no. 4: 1112. https://doi.org/10.3390/w12041112

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop