Sensitivity of Non-Point Source Models to Net Rainfall
A sensitivity analysis of the ANSWERS model was conducted to explore the possible impact on model outputs of discretizing rainfall input data into short time increments of various durations....
Computer Automated Hydrologic Data Acquisition
A computer automated hydrologic data acquisition system has been developed to support field monitoring of rainfall, streamflow, groundwater and conductivity. The basic system involves...
A Multivariate Analysis of Stillwater Lakes, Nevada
Stillwater Lakes located in western Nevada has been experiencing an astounding number of fish and waterfowl deaths since August 1986. This problem is explored through a multivariate statistical...
Behavior of Total Zinc in the Similkameen River
Multiple linear regression analysis was used to: develop equations that summarize the relationship between total zinc and a set of water quality characteristics measured in the Similkameen...
The MSU Sprinkling Infiltrometer: A Device to Measure Time-to-Ponding
Time-to-ponding can be determined quickly and with minimal disturbance to the soil surface by the use of a sprinking infiltrometer developed at Michigan State University (MSU). Solenoid...
Drought in Tennessee: Implications on Irrigation System Capacity
Recent droughts in Tennessee have led to a study of the required irrigation system capacity for the state. Data from 1951 through 1988 were analyzed for probabilities of precipitation...
The Water Erosion Prediction Project: Erosion Processes
The erosion process on hillslopes is conceptualized in the USDA Water Erosion Prediction Project (WEPP) as being divided into rill and interrill processes. Rill detachment occurs when...
The Influence of Water Tables on Herbicide Losses
Atrazine and metolachlor were applied preemergent on April 22, 1987, to silage corn on high watertable fields which were either subsurface drained (104 mm drain tubes 1 m deep) or surface...
Drought Investigations by the Use of Maximum Daily Temperatures
By the use of maximum daily temperature data, drought events can be defined by taking a certain truncation level to form the partial drought duration series. A drought series representing...
Advisory System for South Florida Water Management
A comprehensive, real-time advisory system was developed for the operation of water control facilities within the South Florida Water Management District. The Operations Assistant and...
Computer Support for TVA's Reservoir System Operations: Hardware
The current computer systems in use at TVA for hydrologic data collection and modeling are approaching ten years old. A study is in progress to determine the computer systems needed to...
Computer-Aided Negotiation of Water Resources Issues in California's Central Valley Project
The U.S. Bureau of Reclamation operates the Central Valley Project (CVP) in California. The CVP is a large system of streams, reservoirs and canals in California's Sacramento and San Joaquin...
Development and Application of Hydrologic Forecast Systems
Hydrologic forecast systems generally consist of several components which include computer hardware and software to perform data handling functions and enable users to calibrate hydrologic...
Limitations of Level-Pool Routing in Reservoirs
Storage routing is defined for purposes of this study as any routing technique which expresses reservoir storage as a single-valued function of stage, and hence it is sometimes termed...
Seasonal Streamflow Forecasts Based Upon Regression
Many western water-supply system operators employ forecasts of seasonal inflows for the snow-melt season to plan spring and summer operations. This study considers the simple statistical...
A Microcomputer Model for Integrated Analysis of Peaking Hydro in a Thermal System
An integrated approach to simulation of a hydro system called HYDROMOD has been developed and used to place a value on additional energy-limited peaking hydro capacity added to a major...
An Emerging Application of Microcomputers in Water Control
Plans being developed at the Corps' Hydrologic Engineering Center propose a gradual transfer of water control support from minicomputers to a network of microcomputer workstations....
Role of Data Management in Water Control
The success of a system of software that must provide the water control user with current information, model analysis results, and forecasts of future behavior, is closely associated with...
Computer Program for Smoothing and Correcting Hourly Time Series Data
A FORTRAN computer program has been developed for the U.S. Army Corps of Engineers St. Louis District that automatically screens and corrects hourly time series data for gross errors and...
Development of the Hydrodata CD-ROM Data Storage System
To store and retrieve data from two of the USGS WATSTORE databases - the daily and peak values files - and the Summary of the Day file from the National Climatic Data Center, the authors...
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