Skip to main content
Advanced Search

Filters: partyWithName: ASCE (X) > Categories: Publication (X) > Types: Citation (X)

9 results (6ms)   

View Results as: JSON ATOM CSV
D.1 introduction; D.2 suspended-sediment concentration interpolation method; D.3 transport-curve method for suspended sediment load, bed load, and total load; D.4 equations for estimating bed load and bed-material load; D.5 toward collection of consistent, reliable fluvial-sediment data; references
Categories: Publication; Types: Citation
This paper presents results of a study to assess the impacts of climate change on Midwestern streams and the ability of alternative regulations to maintain critical stream conditions. The study focuses on two generic types of regulations, those that restrict withdrawals to a constant flowrate at all times and those that allow withdrawals to increase and decrease with streamflow. Trading of water withdrawal permits is also considered as an adjunt to both policies. The study uses a modeling technique based on the SWAT model, applied to data for a Midwestern river basin. Streamflow was assumed stressed by agricultural irrigation, which is most intense during times when natural streamflows are at their lowest even without...
In response to fish decline, many federal and state agencies (e.g., National Marine Fisheries Service (NMFS), United States Department of Agriculture (USDA), United States Bureau Reclamation (USBR), United States Forest Service (USFS), Department of Fish and Wildlife (DFW), United States Department of Energy and United States Army Corps of Engineers (USACE)) have employed management plans in the last twenty to thirty years to augment fish populations and other aquatic organisms by improving stream habitats. Most of the restoration efforts have focused on the enhancement of the stream corridors to restore habitat quality variables (e.g., pool-riffle sequence, depth, shade) and river geomorphologic characteristics...
The major water quality impairment in the Midwest United States is sediment eroded from agricultural lands. Yet, few understand the spatial and temporal variability of erosion, or soil erosion dynamics, in relation to precipitation, topography, land management and severe events. Long-term measurement of erosion is expensive and not practical. Utilizing process based, distributed models such as WEPP allows an inexpensive and quicker way of predicting spatial and temporal variation in erosion. One key limitation of the WEPP model is the maximum "field" size that the model is applicable to. This paper questions the performance of WEPP model for a 26 km2 watershed which is 10 times larger than the maximum size (2.6...
The impact of climate change and best management practices (BMPs) on flow and sediment load at a watershed outlet is presented in this study. Climate change scenarios include future daily temperature (maximum and minimum) and daily precipitation projections made by an Atmospheric Ocean Global Circulation Model (AOGCM) for the years 2046 to 2065. Daily precipitation data are further down-scaled to station level in the watershed area. An Optimal Control Model (OCM) developed by coupling a semi-distributed hydrological model, Soil and Water Assessment Tool (SWAT), with a genetic algorithm (GA) identifies the least cost design (sizes, types, and locations) of structural BMPs while meeting treatment goals at a watershed-scale...