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Needed Social, Cultural and Design Changes to Successfully Manage Nigerian Surface Irrigated Projects
The aim of this paper is to illustrate the broad nature of problems associated with the faulty initial designs of water distribution network and irrigation methods and poor participartion...

Conveyance Characteristics of Natural Channels in Wyoming
This paper addresses the quantification of instream or conveyance losses of water being transported within natural stream systems in Wyoming using a net total loss and incremental loss...

A Method for `Warped Surface' Land Forming Design
Most approaches to land forming are based on a plane surface design which in some cases may result in prohibitive costs or excessive removal of top soil....

Diagnostic Strategies of an Expert System for Simulating Snowmelt Runoff
An expert system, EXSRM, is being developed for an existing and well tested snowmelt runoff model. The expert system assists an unfamiliar user in setting up the model to run and then...

Cotton Response to High Frequency Irrigation
Three cotton production tests irrigated with the Low Energy Precision Application (LEPA) system were conducted from 1985 through 1987 on the Texas High Plains. Cotton treatments were irrigated...

A Comprehensive Tool for Tile Drainage Planning
The objective of the project is to design and develop a set of software tools, building on existing models and computer-assisted procedures, known as an Advanced Decision Support System...

Proposed Improvements in Lateral Canal Operations
Uniform and flexible supplies of irrigation water are required for farmers to make the best use of their on-farm application systems. Results of a study of deliveries at the lateral canal...

Control of Surge Pressures in Irrigation Systems
Excessively high or low pressure within an irrigation system can result in damage to pipelines, pumps, valves, and on-farm facilities. Frequently, these pressure variations are caused...

Random Characteristics of Sediment-Laden Flows and the Techniques of Effective Sediment Exclusion on Dujiangyan Irrigation Project in China
The irrigation system is over 2,200 years old and discharges water at a rate of 340-740 m³/s from the Minjiang River. The average slope of the river...

Dam Seepage Analysis Using Artificial Intelligence
The paper discusses an interactive advanced decision support system (ADSS) which is being applied to analyzing seepage from embankment dams. The development of a prototype knowledge base,...

Irrigation and Nitrogen Management Impacts on Ground-Water Quality
The effect of irrigation management and nitrogen management on ground-water quality has been evaluated for four years on a sandy loam Coastal Plain soil. Nitrogen sidedressing and fertigation...

What is an Expert System?
Expert systems are probably the predominant area of artificial intelligence (AI) since the technology has a wide degree of application today. Expert systems function primarily on the concept...

Personal Consultant Series a Step by Step Guide
The paper discusses the Texas Instruments' Personal Consultant Series of expert system development tools, a versatile set of compatible tools for the expert system developer....

Expert Systems Water Management: A Demonstration
Expertise is one of the major assets of the Bureau of Reclamation. However, with the current downward trend in government funding, the Bureau is facing an 'expertise crisis'....

DSS: A Dam Site Selector Expert System
The Dam Site Selector (DSS) expert system is an aid for rating an area for use as a dam site and reservoir. It was developed for use in a graduate level hydrology design course at Purdue...

Adsorption, Desorption and Transport of Pesticides in Groundwater: A Critical Review
Adsorption and desorption are major mechanisms affecting the transport and fate of pesticides in groundwater. Equilibrium, chemical nonequilibrium and physical nonequilibrium adsorption...

Sorption and Transport of Aldicarb Through the Vadose Zone
The literature was reviewed regarding the sorption and transport of a nonionic organic pesticide aldicarb, an extremely toxic and relatively water soluble carbamate insecticide that has...

Theory and Operation of French Energy Balance, Bowen Ratio and Micro-Meteorology Instrumentation
The Penman formula for potential evapotranspiration (ETp) and the Energy Balance Method for actual evapotranspiration (ETr) provide information on evapotranspiration rates. Examination...

Ultrasonic Flow Meter Testing
Six ultrasonic flow meters were tested in a hydraulics laboratory. Accuracies better than 2% were obtained with two transit-time meters on 14 inch diameter steel tubing. Poorer accuracies...

Achieving Accurate Irrigation Water Measurements with Propeller Meters
Propeller meters are now being used extensively to help quantify and manage the huge but poorly distributed water supplies available to irrigated agriculture in the western states. Careful...

 

 

 

 

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