Object-oriented Model of Colorado River Salinity
A salt balance is incorporated into an object-oriented river-basin model and applied to the Colorado River. The model simulates seasonal variations in the basin's water balance and employs...
Statewide Consumptive Use Estimates
Methodology for estimating consumptive use and consumptive irrigation requirements on a statewide basis is summarized. The methodolgy has been used to update monthly and seasonal consumptive...
A Three-Dimensional Numerical Simulation of Seasonal Flow and Salt Transport in the C&D Canal
Two seasonal-scale, three-dimensional hydrodynamic models with salt transport using CH3D-WES were constructed to represent the most critical periods of environmental concern: fishery spawning...
The Influence of Seasonal Climatic Variability on Shallow Infiltration at Yucca Mountain
To analyze infiltration and the redistribution of moisture in alluvial deposits at Yucca Mountain, water content profiles at a 13.5 m deep borehole were measured at monthly intervals using...
Seasonal Rates?The Pros and Cons: A Case Study
The Spring Valley Water Company, an investor owned water utility serving over 58,000 customers in Rockland County, New York, implemented a seasonal differential rate structure in 1980....
The Evolution of Conservation Rates in Phoenix, Arizona
Conservation or increasing block rates first implemented in Phoenix, Arizona in 1982 were reexamined by a three year study involving Water Department staff, a Citizen Rates Committee and...
Assessment and Mitigation for Endangered Vernal Pool Invertebrates
The USFWS is considering declaring five species of vernal pool invertebrates endangered. Among these are the Vernal Pool Fairy Shrimp (Branchinecta lynchi), the California Linderiella...
Salinity Variations in Two Louisiana Estuaries
Salinity variations, on a variety of time scales, are described for two shallow bar-built estuaries of the Louisiana coast. Tidal, sub-tidal, and seasonal scale variations are important...
Measuring the Effect of Sediment Fences for Wetland Creation and Restoration in Louisiana
A sediment erosion table (SET) method has been developed to monitor changes over time in intertidal mudflat or pond elevations with an accuracy in the 1.5 mm range. The SET permitted rapid...
Coastal Erosion in Senegal?The Case of Rufisque
Studies conducted in Rufisque (Senegal) have contributed to the understanding of coastal erosion processes. The historical evolution of the coastline between 1959 and 1980 shows different...
Benthnic Foraminifera Diversity in the Bonny Estuary, Niger Delta, Nigeria
The Bonny estuary is the most exploited in the Niger Delta. Several Oil fields, production platforms and flow stations are located within the estuary. Apart from these industrial uses,...
Survey of the Juvenile Shrimp (Penaeus) in the Lagos Lagoon, Nigeria
This paper discusses the ecology as well as the traditional capture fishery for the transitional phase juvenile shrimp of the genus Penaeus in the Lagos lagoon, Nigeria. The juvenile shrimps...
Seasonal Morphological Evolution of Beach Profiles in Tropical Zone
A follow-up of the morphological evolution of Cote d'Ivoire Atlantic littoral for two yeas, from nine beach profiles between Grand-Bassam and Jacqueville showed a seasonal evolution of...
Temporal Variation of Precipitation Trend at Seoul, Korea, 1771-1991
This paper describes temporal variation of annual precipitation trend from 1771 to 1991 at Seoul, Korea. Analysis of the series shows no distinct trend over years. A linear trend would...
Can Statistical Methods Help to Forecast Drought?
Relationships have been developed between rainfall in eastern Australia and both southern oscillation (SO) and sea surface temperatures (SSTs), and between rainfall in Ghana, West Africa...
Peaks Over Threshold Model for Seasonal Flood Variations
The peaks over threshold (POT) series model has been used in hydrology to analyse extreme phenomena such as floods or precipitation amounts exceeding a certain threshold level. The results...
A Revised Snowstorm Maximization Method for Canadian Boreal Regions
A proposed refinement in the development of design snowpacks for use in the derivation of probable maximum floods (PMF) estimates in the Canadian Boreal is presented. Shortcomings in the...
Spatial and Temporal Precipitation Characteristics in Southwest Idaho
The USDA-ARS, Northwest Watershed Research Center operates a precipitation gage network on the Reynolds Creek Experimental Watershed in southwest Idaho. Analysis of the 30-yr (1962-1991)...
Growing Season Evapotranspiration and Crop Coefficient
The Bowen ratio-energy balance (BREB) method was used to continuously estimate 20-minute actual evapotranspiration (ETa) in the middle of a 36-ha...
Nongrowing Season ET from Irrigated Fields
The evaporative loss of water from agricultural fields during the nongrowing season is an important component of the annual water balance of irrigated lands. This study was conducted to...
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