Hybrid modelling approach to prairie hydrology: fusing data-driven and process-based hydrological models

Mekonnen, Balew A.; Nazemi, A.; Mazurek, Kerry A.; Elshorbagy, Amin; Putz, Gordon

doi:10.1080/02626667.2014.935778

Cited by 44 publications

(25 citation statements)

References 51 publications

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“…While it is essential to consider the potential effects of climate change, several studies have also highlighted the significance of land use change and its vital role in the hydrology of the CPPR [6,15,[34][35][36]. For example, the loss of wetland surface runoff in the prairie often drains into Wetlands play a major role in watershed health [8][9][10][11] and can be seen as an integral component of much of the prairie landscape.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Importance of Potholes in the Canadian Prairie Region under Future Climate Change Scenarios

Muhammad

Evenson

Stadnyk

et al. 2018

Water

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The Prairie Pothole Region (PPR) of Canada contains millions of small isolated wetlands and is unique to North America. The goods and services of these isolated wetlands are highly sensitive to variations in precipitation and temperature. We evaluated the flood proofing of isolated wetlands (pothole wetlands) under various climate change scenarios in the Upper Assiniboine River Basin (UARB) at Kamsack, a headwater catchment of the Lake of the Prairies in the Canadian portion of the PPR. A modified version of the Soil Water Assessment Tool (SWAT) model was utilized to simulate projected streamflow under the potential impacts of climate change, along with changes to the distribution of pothole wetlands. Significant increases in winter streamflow (~200%) and decreases (~11%) in summer flow, driven by changes in future climates, were simulated. Simulated changes in streamflow resulting from pothole removal were between 55% for winter and 15% for summer, suggesting that climate will be the primary driver in the future hydrologic regime of the study region. This research serves as an important guide to the various stakeholder organizations involved in quantifying the aggregate impacts of pothole wetlands in the hydrology of the Canadian Prairie Region.

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Section: Introductionmentioning

confidence: 99%

Assessing the Importance of Potholes in the Canadian Prairie Region under Future Climate Change Scenarios

Muhammad

Evenson

Stadnyk

et al. 2018

Water

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“…It was initially developed for large area agricultural watersheds (Arnold et al, 1998) by the Agricultural Research Service of the US Department of Agriculture (Gassman et al, 2007). Although the Canadian prairie region has widespread agricultural activity and is highly productive (Stewart, 2006;Stewart et al, 2009;Kissinger and Rees, 2009), there has been some difficulty in applying the SWAT model to this region (Chanasyk et al, 2003;Mekonnen et al, 2015). The problems are because of the existence of numerous landscape depressions (Euliss et al, 1999) that have a significant influence on runoff and infiltration processes in the region Hayashi et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…For much larger watersheds in the region, SWAT has often been applied (e.g. Sophocleous et al, 1999;Shrestha et al, 2011;Almendinger et al, 2012;Mekonnen et al, 2015). However, in past application of the SWAT model, the influences of multiple landscape depressions are often either neglected or lumped.…”

Section: Introductionmentioning

confidence: 99%

“…In an attempt to take into account some of the depression dynamics, in some studies the individual depressions were aggregated and represented with a single lumped storage per sub-basin to use SWAT's surface depression module for simulating the fill and spill processes (e.g. Almendinger et al, 2012;Mekonnen et al, 2015). Although the latter approach improves model simulation of streamflow, this type of approach does not consider the heterogeneity of storage capacity on the landscape (Wang et al, 2008;Yang et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Incorporating landscape depression heterogeneity into the Soil and Water Assessment Tool (SWAT) using a probability distribution

Mekonnen

Mazurek

Putz

2016

Hydrological Processes

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Modelling the hydrology of North American Prairie watersheds is complicated because of the existence of numerous landscape depressions that vary in storage capacity. The Soil and Water Assessment Tool (SWAT) is a widely applied model for long‐term hydrological simulations in watersheds dominated by agricultural land uses. However, several studies show that the SWAT model has had limited success in handling prairie watersheds. In past works using SWAT, landscape depression storage heterogeneity has largely been neglected or lumped. In this study, a probability distributed model of depression storage is introduced into the SWAT model to better handle landscape storage heterogeneity. The work utilizes a probability density function to describe the spatial heterogeneity of the landscape depression storages that was developed from topographic characteristics. The integrated SWAT–PDLD model is tested using datasets for two prairie depression dominated watersheds in Canada: the Moose Jaw River watershed, Saskatchewan; and the Assiniboine River watershed, Saskatchewan. Simulation results were compared to observed streamflow using graphical and multiple statistical criterions. Representation of landscape depressions within SWAT using a probability distribution (SWAT–PDLD) provides improved estimations of streamflow for large prairie watersheds in comparison to results using a lumped, single storage approach. Copyright © 2016 John Wiley & Sons, Ltd.

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“…However, this aggregation required “excessive parameterization” and researchers noted a “need to modify the SWAT code to better account for the surface water–groundwater interactions of depressional features in lowland landscapes” (Gassman, Sadeghi, & Srinivasan, ). Mekonnen, Nazemi, Mazurek, Elshorbagy, and Putz () also represented individual depressions using a single lumped storage per subbasin.…”

Section: Methodsmentioning

confidence: 99%

High resolution water body mapping for SWAT evaporative modelling in the Upper Oconee watershed of Georgia, USA

Ignatius

Jones

2017

Hydrological Processes

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Technological improvements in remote sensing and geographic information systems have demonstrated the abundance of artificially constructed water bodies across the landscape. Although research has shown the ubiquity of small ponds globally, and in the southeastern United States in particular, their cumulative impact in terms of evaporative alteration is less well quantified. The objectives of this study are to examine the hydrologic and evaporative importance of small artificial water bodies in the Upper Oconee watershed in the northern Georgia Piedmont, USA, by mapping their locations and modelling these small reservoirs using the Soil Water Assessment Tool. Comparative Soil Water Assessment Tool models were run with and without the inclusion of small reservoir surface area and volume. The models used meteorological inputs from 1990–2013 to represent years with drought, high precipitation, and moderate precipitation for both the calibration and evaluation periods. Statistical comparison of streamflow indicated that the calibration methodology produced results where the default model simulation without reservoirs fit observed flows more closely than the modified model with small reservoirs included (e.g., Nash–Sutcliffe efficiency of 0.72 vs. 0.64, r2 of 0.73 vs. 0.66, and percent bias of 11.4 vs. 21.6). In addition, Penman–Monteith, Hargreaves, and Priestley–Taylor evapotranspiration equations were used to estimate actual evaporation from 2,219 small water bodies identified throughout the 1,936.8 km2 watershed. Depending on the evaporation equation used, water bodies evaporated an average of 0.03–0.036 km3/year for the period 2003–2013. Using Penman–Monteith further, if the reservoirs were not considered and average actual evapotranspiration rates from the rest of the basin were applied, only 0.016 km3 of water would have left the basin as a result of evapotranspiration. This finding suggests construction of small reservoirs increased evaporation by an average of 0.017 km3 per year (approximately 46,500 m3/day). As the construction of small reservoirs continues and high resolution image data used to map these water bodies becomes increasingly available, watershed models that evolve to address the cumulative impacts of small water bodies on evaporation and other hydrologic processes will have greater potential to benefit the water resource management community.

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Hybrid modelling approach to prairie hydrology: fusing data-driven and process-based hydrological models

Cited by 44 publications

References 51 publications

Assessing the Importance of Potholes in the Canadian Prairie Region under Future Climate Change Scenarios

Assessing the Importance of Potholes in the Canadian Prairie Region under Future Climate Change Scenarios

Incorporating landscape depression heterogeneity into the Soil and Water Assessment Tool (SWAT) using a probability distribution

High resolution water body mapping for SWAT evaporative modelling in the Upper Oconee watershed of Georgia, USA

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