New Water for Northern Plains
Current research follows a plan to progress from experimental projects on individual clouds (or areas less than 1,000 sq miles) to pilot projects involving several thousand square miles...

Virus Inactivation during Phosphate Precipitation
Phosphate removal from aqueous solutions by precipitation with calcium and aluminum results in large poliovirus Type I and bacteriophage T2 removals. Tests conducted in distilled water-phosphate...

Weather Modification as a Watershed Management Tool
An analysis is given of potential runoff increases produced by weather modification as a watershed management tool in the Southern Sierra Nevada mountains of California. Experience with...

Predicting Effects of Water Shortage on Crop Yield
This paper discusses the relationships existing between water use (expressed as evapotranspiration) and yields of alfalfa, wheat and grain sorghum. Data, assembled from a number of sources,...

Phosphate Removal: Summary of Papers
Summaries of 16 papers are presented with references to the authors of the original papers which were presented at a Federal Water Pollution Control Administration Conference on Phosphorus...

Double-Mass Analysis on the Computer
Hydrologists use double-mass analysis to verify the consistency of a precipitation or streamflow record. Precipitation of a station is plotted against the combined precipitation of the...

Analytically Derived Unit Graph and Runoff
A technique has been programed to solve analytically for measures of precipitation excess and unit graph shape parameters. The optimization procedures achieved a very high degree of adjustment...

Effect of Drought on Stream Quality in New Jersey
Five consecutive years of drought (1961-66) have had a pronounced effect on the water quality of New Jersey's streams. This is illustrated by comparison of cumulative departures...

Antecedent Retention Indexes Predict Soil Moisture
Two models for calculating antecedent moisture index values are evaluated by comparisons with measured soil moisture. One model, based on the traditional antecedent precipitation index...

Computer-Determined Unit Hydrograph from Floods
A computer program using matrix algebra to determine the best-fit unit hydrograph from one or several complex floods using statistical curve fitting techniques is described. The program...

Impoundment Water Quality Changes Caused by Mixing
Mechanical pumping was used to artificially destratify a 2,380-acre-ft lake in northern Kentucky. The pump drew water from the bottom and discharged it at the surface. Analysis of samples...

Relationships Among Sprinkler Uniformity Measures
From among the many different measures of uniformity (or nonuniformity) of application of water by sprinkler irrigation, five are defined. They have been termed the Christiansen coefficient...

Precipitation of Iron in Aerated Ground Water
Efforts were made to determine the factors which govern the kinetics of iron precipitation so that a more rational approach could be applied to the engineering design of reaction basics...

Estimating Consumptive Use By the Munson P.E. Index Method

Watershed Hydrology Research — Reynolds Creek Experimental Watershed

Weather Modifications, University of Wyoming
A general description is given of the weather modification research conducted by the Natural Research Institute of the University of Wyoming for the purpose of precipitation increase....

Weather Modification
A review is given of the current status of attempts to increase precipitation by artificial means. Major research efforts are being made on this problem, both in the United States and...

Ratio of True to Fixed-Interval Maximum Rainfall
Observations of precipitation amounts at specified times may fail to indicate the maximum amounts for a given interval because the period of precipitation may extend over more than one...

Analysis of Precipitation at Huntington Lake
Precipitation data for Huntington Lake, in California, were analyzed to determine some of the seasonal distribution characteristics of precipitation and the relationships of the total...

Irrigation Water Requirements in Texas
The derivation of irrigation water requirements and an explanation of their use for project planning work in Texas is presented in which effective precipitation, consumptive use, farm...

 

 

 

 

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