Assessment of Spring Chinook Salmon Habitat Suitability in the San Joaquin River Using a 2-D Depth-Averaged Model

Liu, Lubo; Ramirez, Joaquin

doi:10.5772/57437

Cited by 2 publications

(4 citation statements)

References 11 publications

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“…The first objective of the research conducted for this case study was to model the stream conditions, including current velocity, depth, and WSE, for three alternatives proposed for the SJRRP given the same hydrologic/hydraulic boundary conditions. This part of hydrodynamic research has been done and published [28]. The second objective was to further investigate how the water quality at the upstream of the SJR affects the downstream.…”

Section: Resultsmentioning

confidence: 99%

“…The detailed model calibration and engineering plan comparisons have been reported by Liu and Ramirez [28]. Due to the lack of observed water quality data, the developed water quality model was used to simulate a virtual scenario as follows: four chemical species, including NH 3 ,N O 3 , Organic N, and Organic P, which are common in the SJR watershed, entered the SJR at the upstream entrance of the river reach (SDP).…”

Section: Resultsmentioning

confidence: 99%

“…In this case study, alternative 3 was used for the water quality study. The water pathway is: Reach 4A-Eastside Bypass-Mariposa Bypass-Reach 4B2-Reach 5 [28].…”

Section: Applications In Water Systems Management and Modelingmentioning

confidence: 99%

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Application of a Hydrodynamic and Water Quality Model for Inland Surface Water Systems

Liu¹

2018

Applications in Water Systems Management and Modeling

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This chapter introduces basic concepts, properties, and principles of different processes in inland surface water and analytical methodologies. The fundamentals of surface water hydrodynamics, including water properties, hydrodynamic processes, Cartesian coordinatebased governing equations, and boundary and initial conditions were reviewed. The fate and transport of contaminants in surface water were introduced. Based on aforementioned theory and principles, two hydrodynamic-water quality models were developed for studying a lake and a river, respectively. A stratified 3D model was used to investigate the circulation and E. coli transport in the nearshore region of Lake Michigan. The modeling results show that stratified phenomenon exists in the near region, and a 3D model is necessary even though a previous 2D model works well for the shallow water environment. A 2D depth-averaged water quality model was developed to estimate the fate and transport of four contaminants in the San Joaquin River of California. The modeling results indicate that it took 20 days for these contaminants to transport from the upstream to the downstream in the research domain. These models can be effectively used for inland surface water restoration and management.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Application of a Hydrodynamic and Water Quality Model for Inland Surface Water Systems

Liu¹

2018

Applications in Water Systems Management and Modeling

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“…Flood prediction and ecohydraulic models (including aquatic habitat suitability modeling) depend on accurate velocity and depth inputs derived from hydraulic modeling to provide relevant results (Liu and Ramirez ; Dixon et al ; Jain et al ). The potential for hydraulic models to guide assessment of habitat, restoration actions, and flood risks is limited by the lack of tested methods for representing porous LW jams in 2D or 3D models.…”

Section: Introductionmentioning

confidence: 99%

Integrating Large Wood Jams into Hydraulic Models: Evaluating a Porous Plate Modeling Method

Ventres‐Pake

Nahorniak²,

Kramer

et al. 2020

J American Water Resour Assoc

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Research Impact Statement: Hydraulic models are error-prone where rivers interact with large wood jams. Our method for representing wood jams improves hydraulic model accuracy and ecohydraulic analysis.ABSTRACT: Large wood (LW) jams are key riverine habitat features that affect hydraulic processes and aquatic habitat. The hydraulic influence of LW jams is poorly understood due to the complexity of fluid dynamics around irregular, porous structures. Here we validated a method for two-dimensional hydraulic modeling of porous LW jams using the open-source modeling software Delft3D-FLOW. We sampled 19 LW jams at three reaches across the Columbia River Basin in the United States. We used computer-generated porous plates to represent LW jams in the modeling software and calibrated our modeling method by comparing model outputs to measured depths and velocities at validation points. We found that modeling outputs are error-prone when LW jams are not represented. By representing LW jams as porous plates we reduced average velocity root mean square error (RMSE) values (i.e., improved model accuracy) by 42.8% and reduced average depth RMSE values by 5.2%. These differences impacted habitat suitability index modeling. We found a 15.1% increase in weighted useable area for juvenile steelhead at one test site when LW jams were simulated vs. when they were ignored. We investigated patterns in average RMSE improvements with varying jam size, bankfull obstruction, porosity, and structure type, and river complexity. We also identified research gaps related to field estimation of LW jam porosity and porous structure modeling methods.(KEYWORDS: rivers/streams; fluvial processes; 2D simulations; field measurements; large wood jam; hydraulic modeling; fish habitat suitability; river restoration.) Paper No. JAWRA-18-0166-P of the Journal of the American Water Resources Association (JAWRA).

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Assessment of Spring Chinook Salmon Habitat Suitability in the San Joaquin River Using a 2-D Depth-Averaged Model

Cited by 2 publications

References 11 publications

Application of a Hydrodynamic and Water Quality Model for Inland Surface Water Systems

Application of a Hydrodynamic and Water Quality Model for Inland Surface Water Systems

Integrating Large Wood Jams into Hydraulic Models: Evaluating a Porous Plate Modeling Method

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