Identification of a General Linear Model for Reservoir Inflows Forecasting
General linear stochastic models represent a valuable alternative to conceptual models in order to describe runoff generating mechanisms in a drainage basin. In regions such as Quebec,...

Design and Implementation of On-Farm Surface Drainage Projects in the Humid Tropics of Mexico
In the humid tropics of southeastern Mexico, the Mexican National Water Commission (CNA) has constructed a network of collector drains for stormwater runoff removal. At the same time the...

Flash Floods and Their Control in the Indian Arid Zone
Flash floods are common hydrologic phenomena in the arid north west India. Drainage basins of high relief, a large percentage of surficial bed rock, sparse vegetation, and shallow soils...

Conjunctive Water Use Transforms a California Desert
An area doing multi-billion dollar recreational and agricultural business in the Southern California Sonoran desert owes its existence and well being to two things?wise water planning...

Development of a Hydrologic Model with Both Spatially Distributed and Physically Based Capabilities
A distributed hydrologic model is developed at The Pennsylvania State University for use with rasterized data bases. The purpose of the Terrestrial Hydrologic Model or THM is to investigate...

Mixing Processes in the Dangava River Estuary
The aim of this report is to present main changes in the hydrology of the Daugava River estuary after its natural water flow became regulated and to present a simple physical model of...

Current Status of the Demonstration Management Improvement Program
Coordinated resource management programs have been developed and implemented in the Maricopa-Stanfleld Irrigation and Drainage District (MSIDD) area as a result of the Management Improvement...

The Management Improvement Program: An Irrigation District's Perspective of the Demonstration Program
In November 1990, the Maricopa-Stanfield Irrigation and Drainage District agreed to participate in the first application of the Management Improvement Program (MIP) for irrigated agriculture....

County-Wide Drainage Study Using GIS
A county-wide drainage study was conducted for the County of San Joaquin, California, Department of Public Works, for the determination of storm runoff quantities for the planning of flood...

Capillary Pressure-Saturation Relationships in Fracture
Understanding and quantifying unsaturated flow through fractures in rocky slope is important for design and construction of drainage system in large-scale hydraulic engineering. The data...

Scour at Culvert Outlets: Considerations Present and Future
One of the major considerations in the design and rehabilitation of the national transportation system is the conveyance of tributary drainage through constructed embankments. As drainage...

Acquisition and Restoration of a Drainage District in the Snohomish River Valley
The purpose of this paper is to present an overview of the efforts by Snohomish County to acquire a drainage district (Drainage District 6) in the lower Snohomish River valley and restore...

Storm Drainage GIS, Modeling, and Master Planning for the City of Berkeley
The City of Berkeley has completed its Storm Sewer Master Plan. The master plan com bined the findings of field inspection worig computer-based mapping, and geographic information system...

Hollyhills Drain Relief for 1920s Drainage System
The paper will discuss design and construction problems encountered for a $50,000,000 Urban Storm Drain System in the Metropolitan Los Angeles Area. The Drainage System relieves a system...

Use of ??8O and ?D to Define Seawater Intrusion
On the basis of previous studies, more than 60 km? of upper aquifer system underlying the Oxnard Plain was believed to be intruded by seawater. Recent work has shown that there are sources...

Economic Impact of Managing Sea Water Intrusion
Sea water intrusion into a coastal aquifer may result from continued over extraction of the aquifer. In many coastal communities, sea water intrusion has led to artificial recharge programs...

Operation and Maintenance of Ground Water Facilities
The objective of this manual, Operation and Maintenance of Ground Water Facilities (Manual 86), is to point out the many factors that need...

Mapping History
Difficult, environmentally sensitive terrain combined with the fact that Canadian Western Natural Gas's new Banff pipeline will be laid in archaeologically rich ground posed a challenge...

Water Quality Regs: Staying Ahead
After a century in which water utilities could stay well ahead of most regulations simply by being responsible, professional organizations, they now seem to be playing catchup in a game...

Columbus Clear Wells
At an average of 8 million gal. each, six new clear wells at the Hap Cremean Water Plant in Columbus, Ohio represent the largest post-tensioned, reinforced concrete noncircular tanks ever...

 

 

 

 

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