Independent Technical Review And Analysis Of Hydraulic Modeling And Hydrology Under Low Flow Conditions Of The Des Plaines River Near Riverside Illinois PDF Download

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Independent Technical Review and Analysis of Hydraulic Modeling and Hydrology Under Low-flow Conditions of the Des Plaines River Near Riverside, Illinois

Independent Technical Review and Analysis of Hydraulic Modeling and Hydrology Under Low-flow Conditions of the Des Plaines River Near Riverside, Illinois
Author: U.S. Department of the Interior
Publisher: CreateSpace
Total Pages: 80
Release: 2014-03-30
Genre: Nature
ISBN: 9781497389083

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The U.S Geological Survey has operated a streamgage and published daily flows for the Des Plaines River at Riverside since Oct. 1, 1943. A HEC-RAS model has been developed to estimate the effect of the removal of Hofmann Dam near the gage on low-flow elections in reach appropriately 3 miles upstream from the dam.


Use of a Two-dimensional Flow Model to Quantify Aquatic Habitat

Use of a Two-dimensional Flow Model to Quantify Aquatic Habitat
Author: D. Michael Gee
Publisher:
Total Pages: 22
Release: 1985
Genre: Aquatic biology
ISBN:

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This paper describes the impacts of potential hydropower retrofits on downstream flow distributions at Lock and Dam No. 8 on the upper Mississippi River. The model used solves the complete Reynolds equations for two-dimensional free-surface flow in the horizontal plane using a finite element solution scheme. RMA-2 has been in continuing use and development at the Hydrologic Engineering Center and elsewhere for the past decade. Although designed primarily for the simulation of hydraulic conditions, RMA-2 may be used in conjunction with related numerical models to simulate sediment transport and water quality. In this study, velocity distributions were evaluated with regard to environmental, navigational and small-boat safety considerations. Aquatic habitat was defined by depth, substrate type and current velocity. Habitat types were quantified by measuring the areas between calculated contours of velocity magnitude (isotachs) for existing and project conditions. The capability for computing and displaying isotachs for the depth-average velocity, velocity one foot from the bottom and near the water surface was developed for this study. The product of this study effort is an application of the RMA-2 model that allows prediction of structural aquatic habitat in hydraulicaly complex locations. Elements of the instream flow group methodology could be incorporated to provide detailed predictions of impacts to habitat quality. Calibration of the numerical model to field measurements of velocity magnitude and direction is also described.


Advances in Hydrologic Forecasts and Water Resources Management

Advances in Hydrologic Forecasts and Water Resources Management
Author: Fi-John Chang
Publisher: MDPI
Total Pages: 274
Release: 2021-01-20
Genre: Technology & Engineering
ISBN: 3039368044

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The impacts of climate change on water resource management, as well as increasingly severe natural disasters over the last decades, have caught global attention. Reliable and accurate hydrological forecasts are essential for efficient water resource management and the mitigation of natural disasters. While the notorious nonlinear hydrological processes make accurate forecasts a very challenging task, it requires advanced techniques to build accurate forecast models and reliable management systems. One of the newest techniques for modeling complex systems is artificial intelligence (AI). AI can replicate the way humans learn and has great capability to efficiently extract crucial information from large amounts of data to solve complex problems. The fourteen research papers published in this Special Issue contribute significantly to the uncertainty assessment of operational hydrologic forecasting under changing environmental conditions and the promotion of water resources management by using the latest advanced techniques, such as AI techniques. The fourteen contributions across four major research areas: (1) machine learning approaches to hydrologic forecasting; (2) uncertainty analysis and assessment on hydrological modeling under changing environments; (3) AI techniques for optimizing multi-objective reservoir operation; (4) adaption strategies of extreme hydrological events for hazard mitigation. The papers published in this issue will not only advance water sciences but also help policymakers to achieve more sustainable and effective water resource management.