Siting Agricultural Weather Stations
Studies were conducted in Arizona and Washington to investigate how the surrounding fetch affects data collected by agricultural weather stations (AWS). AWS surrounded by extensive areas...

Updating Utah's Crop Water Use Estimates
Crop water use was estimated at National Weather Service stations throughout Utah for the 1961-1990 normal period. Daily weather data (air temperature, solar radiation, humidity, wind...

Revision of Oregon Crop Water Use and Irrigation Requirements
A project to revise the crop water use estimates and irrigation requirements for the state at Oregon is described. The FAO modified Blaney-Criddle method was applied in this project since...

SCS Methods for Determining Irrigation Water Requirements
Technical Release No. 21 (USDA-SCS, 1970) has been used in the U.S. and around the world to design and manage irrigation projects. However, many advancements in predicting crop water use...

Evapotranspiration of Dry Beans with Drip Irrigation
Information about the effect of irrigation on dry bean production in the Southwestern Colorado is very limited. The primary objective of this study is to establish a crop water use (ET)...

Fundamental Principles of Tidal Wetland Restoration
Recognition of the vital role of tidal wetlands for sustaining migratory bird life, for indigenous animal habitat, and for the fishery of contiguous waters has stimulated efforts to restore...

Coping with Agricultural Shortages
Coping with agricultural shortages occupies most of the time and energy of the Kern County Water Agency (Agency). The Agency's participation in the State Water Project (SWP) originated...

Reclamation's Review of Operation and Maintenance Program
The U.S. Bureau of Reclamation (Reclamation) is responsible for protecting the Federal investment in over 300 water storage and conveyance facilities in the 17 Western States. Reclamation's...

Gully Intrusion on Reclaimed Disposal Sites
A three-phase gully erosion study was initiated at the Engineering Research Center of Colorado State University, in cooperation with the U.S. Nuclear Regulatory Commission. The objective...

Optimizing Water Transfers in Urban Water Supply Planning
A number of water supply agencies in the Western United States have begun to integrate water transfers into their overall water supply planning, including the use of transferred water...

Bending of Retrofitted Test Foundation Walls
New repair methodology has been developed for residential construction that can be used to retrofit foundation bearing walls damaged by mine subsidence. The repair strengthens the foundation...

Earthquake Risk GIS Analysis for Ningxia Hui Autonomous Region, China
The Ningxia Hui Autonomous Region is a small autonomous region in the eastern part of northwest China and below Inner Mongolia with an area of 66,400 square meters. Ningxia's population...

Optimal Region Aggregation with Shape Considerations in Spatial Optimization
The region aggregation (land acquisition) problem is discussed within the context of a regular grid matrix having representative cell indices or attribute values. Several optimization...

Evaluation of Runway Roughness for Fighter Jets
A new roughness evaluation procedure is needed, especially, when dealing with modern fighter jets. To this end, a comprehensive pilot attitude survey was conducted in Israel in order to...

Urban Development and APMs in Japan
Implementation of APMs in relation to urban development enlarges the freedom in planning land use and transportation facilities and expands its influence area. As a whole, APM expands...

Design and Construction of the Miami Metromover Extensions
Final design, right-of-way acquisition and construction of two extensions to the existing Downtown Miami Automated People Mover, known as the Metromover, began in September 1989. Millions...

Hong Kong's Wastewater Underground
Standard Hong Kong methods for siting the new $18 million Stanley Wastewater Treatment Plant in Hong Kong Island's South District were running into trouble. The rocky coastal...

Geomechanics of Subsidence Due to Pumping of Groundwater
In this talk we describe a nonlinear theory for the classical problem of pumping of groundwater from a layered soil. The model soil system consists of three horizontal layers where a very...

The Initial Exploration of Mars: Rationale for a Return Mission to Chryse Planitia and the Viking 1 Lander
The concepts behind planning a landing site on Mars are discussed. Based on the engineering constraints and the scientific objectives which will likely be imposed on the first few missions...

Multiple Booster Spaceports
Multiple Booster Spaceports examined launching an entire class of space boosters, both current and future, from a single spaceport. The United States presently launches four distinct classes...

 

 

 

 

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