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Surge Flow?Automation of Surface Irrigation?At Last
The studies which led to the development of Surge Flow at Utah State University, began as an effort to automate surface irrigation systems. The first prototype models, were electric control...

Report of Task Committee on the Collection and Publication of Basic Water Resources Data
In 1983 members of the Irrigation and Drainage Division's Committee on Surface Water expressed concern over reductions in funding for data collection and publication programs in the United...

HEC-1 and HEC-2 Applications on the Microcomputer
The Hydrologic Engineering Center (HEC) has developed versions of the HEC-1 Flood Hydrograph Package and the HEC-2 Water Surface Profiles programs for MS/PC-DOS compatible microcomputers...

Evaluation of Surface-Water - Ground-Water Interaction Coefficients in Water-Resources Planning Model
A water-resources planning model formulated as a mixed-integer program is used to screen and sequence proposed projects such that the present cost of meeting future water demands is minimized....

Well Field Management Designed to Miminize Impact on Surface-Water Flow
Restrictions placed on the operation of a well field used for public water supply initiated an investigation to develop management techniques that would maximize utilization of the well...

Underground Drainage of Urban Runoff from Natural Depressions
A unique subsurface system was designed and implemented for draining such a natural depression in the City of West Lake Hills, Texas. This subsurface drainage system uses a part of the...

Seasonal Rule Curve Reservoir Operation
This paper addresses the potential for increasing the beneficial use of existing reservoirs in the state of Texas through seasonal rule curve release policies. Seasonally varying operating...

Artificial Ice Islands for Deep Water and Production Structures
The need for an island to survive the summer melt season is introduced. To account for surface melting and erosion from waves and currents during this season, the island's...

A Laboratory Study of Factors Affecting Wetted Snow Roads
A brief review of the the literature concerning the application of water to the surface of snow roads is presented. It is demonstrated that there is no general agreement on the proper...

Problems of Spectral Analysis in Dispersion Tests
The use of dispersive surface waves and spectral analysis methods is new to the nondestructive testing of airfield pavements. Such tests are to determine whether mechanical properties...

On Analysis of Dynamic Structure/Media Interaction
A version of the Global-Local Finite Element Method (GLFEM) is applied to the analysis of soil-structure interaction under steady-state excitation. The soil medium is considered to be...

Effect of Particle Size on Sludge Dewaterability
Using a modified Buchner funnel apparatus to measure specific resistance and a sequential centrifugation/filtration procedure to fractionate a sludge, it was possible to more precisely...

Surface Water Analysis for Ground Water Simulation
The California Department of Water Resources (DWR) has applied a hydrologic-economic modeling (HEM) system to the analysis of ground water use in the San Joaquin Valley. An important component...

Simple Removal and Recovery of Irrigation Drainage Salts
This paper reports on preliminary tests of an alternative for simple removal and recovery of irrigation drainage salt. Using a novel system for evaporating waters from capillary surfaces,...

Solving Stormwater Drainage Problems Through an Area Drainage Master Study Program
The Flood Control District of Maricopa County, Arizona, is the floodplain and stormwater management agency for the most densely populated county in the State. A major new tool being used...

Gas Transfer and Secondary Currents in Open Channels
Laboratory flume experiments on water-wide controlled gas transfer, such as reaeration, are described. The experiments indicate that gas transfer is a surface renewal process, well described...

New Developments in HEC Programs for Flood Control
Since the Hydrologic Engineering Center (HEC) started in 1964, the evolution has been toward packaged programs that perform a variety of computation options. Two examples are the flood...

Strategy for Ground Water Planning
Though the percentage of ground water development is only 40%, many areas of India are over developed, where water tables are falling rapidly, due to over pumping. In some areas the surface...

Conjunctive Use Project in Beebe Draw, Co.
A geologically and hydrologically unique alluvial ground water basin, and the hydrologic interaction among aquifer, ground water pumping for irrigation, and the surface water storage and...

Modeling Erosion and Sedimentation in Irrigation
Sediment yield and erosion modeling approaches for sprinkler and surface irrigation are discussed. Empirical approaches, such as the ULSE, and other regression approaches and their applicability...

 

 

 

 

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