Estimation of stream channel geometry in Idaho using GIS-derived watershed characteristics

Ames, Daniel P.; Rafn, Eric; Kirk, Robert Van; Crosby, B. T.

doi:10.1016/j.envsoft.2008.08.008

Cited by 39 publications

(50 citation statements)

References 11 publications

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“…PCP has a direct impact on runoff generation in a watershed. It has been included in multiple regression equations predicting bankfull channel dimensions by several authors before and has often been shown to impact predictions considerably (Hortness and Berenbrock, ; Ames et al ., ; Faustini et al ., ; Wilkerson et al ., ). TMP can have a significant impact on a river's flow regime by controlling whether the system is dominated by rainfall or snowmelt.…”

Section: Methodsmentioning

confidence: 99%

Development and Comparison of Multiple Regression Models to Predict Bankfull Channel Dimensions for Use in Hydrologic Models

Bieger

Rathjens

Arnold

et al. 2016

J American Water Resour Assoc

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Channel dimensions are important input variables for many hydrologic models. As measurements of channel geometry are not available in most watersheds, they are often predicted using bankfull hydraulic geometry relationships. This study aims at improving existing equations that relate bankfull width, depth, and cross‐sectional area to drainage area (DA) without limiting their use to well‐gauged watersheds. We included seven additional variables in the equations that can be derived from data that are generally required by hydrologic models anyway and conducted several multiple regression analyses to identify the ideal combination of additional variables for nationwide and regional models for each Physiographic Division of the United States (U.S.). Results indicate that including the additional variables in the regression equations generally improves predictions considerably. The selection of relevant variables varies by Physiographic Division, but average annual precipitation (PCP) and temperature (TMP) were generally found to improve the models the most. Therefore, we recommend using regression equations with three independent variables (DA, PCP, and TMP) to predict bankfull channel dimensions for hydrologic models. Furthermore, we recommend using the regional equations for watersheds within regions from which data were used for model development, whereas in all other parts of the U.S. and the rest of the world, the nationwide equations should be given preference.

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Section: Methodsmentioning

confidence: 99%

Development and Comparison of Multiple Regression Models to Predict Bankfull Channel Dimensions for Use in Hydrologic Models

Bieger

Rathjens

Arnold

et al. 2016

J American Water Resour Assoc

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“…To achieve this, and as shown in the iteration process (A2), the river depth and width are calculated by the following equations adapted from Ames et al . ):

D_{bank} = 0.13 \times S {A_{italicup}}^{0.4}

W_{c h} = a \times S {A_{italicup}}^{b}

where D bank is the bankfull river depth (m) and SA up is the total surface area (km 2 ) drained by a river segment, and 0.13, a constant (m/km 2 ). Equation which is already used in HYDROTEL calculates the river width ( W ch ) where coefficient a and exponent b have values of 0.49 and 0.62, respectively.…”

Section: Methodsmentioning

confidence: 99%

Integrating isolated and riparian wetland modules in the PHYSITEL/HYDROTEL modelling platform: model performance and diagnosis

et al. 2015

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Abstract:Mathematical modelling is a well-accepted framework to evaluate the effects of wetlands on stream flow and watershed hydrology in general. Although the integration of wetland modules into a distributed hydrological model represents a costeffective way to make this assessment, the added value brought by landscape-specific modules to a model's ability to replicate basic hydrograph characteristics remains unclear. The objectives of this paper were the following: (i) to present the adaptation of PHYSITEL (a geographic information system) to parameterize isolated and riparian wetlands; (ii) to describe the integration of specific isolated wetland and riparian wetland modules into HYDROTEL, a distributed hydrological model; and (iii) to evaluate the performance of the updated modelling platform with respect to the capacity of replicating various hydrograph characteristics. To achieve this, two sets of simulations were performed (with and without wetland modules), and the added value was assessed at three river segments of the Becancour River watershed, Quebec, Canada, using six general goodness-of-fit indicators and 14 water flow criteria. A sensitivity analysis of the wetland module parameters was performed to characterize their impact on stream flows of the modelled watershed. Results of this study indicate the following: (i) integration of specific wetland modules can slightly increase the capacity of HYDROTEL to replicate basic hydrograph characteristics; and (ii) the updated modelling platform allows for the explicit assessment of the impact of wetlands (e.g. typology and location) on watershed hydrology.

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“…The information obtained can guide technicians in projects addressing the physical and ecological restoration of channels, subsidize evaluation studies of degradation conditions in fluvial environments (ROSGEN, 1998) and assist in projects of dimensioning of bridges and gullies (MULVIHILL et al, 2009). The channel dimensions estimated by the equations can be used as input variables in hydrological models (AMES et al, 2009). …”

Section: Introductionmentioning

confidence: 99%

Bankfull Hydraulic Geometry Relationships for Rivers and Streams of the Western and Southwest Regions of Paran� State, Brazil

Fernandez¹

2017

JGES

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This study presents regional hydraulic geometry relationships for rivers and streams in the western and southwestern regions of the state of Paraná, Brazil. Regional hydraulic geometry relates the area of the river basin to the dimensions of the river channel (width, depth, channel capacity) and the flow measured at bankfull stage by potential functions. Both regions integrate a homogeneous area in the basaltic plateau of the Paraná sedimentary river basin. The climate is humid sub-tropical and the average rainfall is 1,830 mm annually. The nesting of the rivers in the study area does not allow the development of alluvial plains. For this reason, sandy deposits deposited by floods were used as a reference in defining bankfull stages. The data were collected by 46 fluviometric stations and reference sections, whose drainage areas ranged from 0.44 to 17,400 km 2 . The coefficients of determination (R 2 ) of the equations reached values between 0.911 and 0.966 and were valid for the studied regions and for alluvial stretches in rural areas.

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Estimation of stream channel geometry in Idaho using GIS-derived watershed characteristics

Cited by 39 publications

References 11 publications

Development and Comparison of Multiple Regression Models to Predict Bankfull Channel Dimensions for Use in Hydrologic Models

Development and Comparison of Multiple Regression Models to Predict Bankfull Channel Dimensions for Use in Hydrologic Models

Integrating isolated and riparian wetland modules in the PHYSITEL/HYDROTEL modelling platform: model performance and diagnosis

Bankfull Hydraulic Geometry Relationships for Rivers and Streams of the Western and Southwest Regions of Paran� State, Brazil

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