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Owen O. Williams

Publications and source records attributed to Owen O. Williams.

8 recordsLinked to original sources
USGS1987

The use of the National Water Data Exchange in support of estuarine and coastal programs

The National Water Data Exchange (NAWDEX) was established by the U.S. Geological Survey in 1976. Its program is directed toward improving the exchange of water and water -related data collected and made available by hundreds of federal and non-federal agencies throughout the United States. This paper describes the NAWDEX program and the services which can be provided to assist coastal and estuarine programs.

Conference Paper↗
USGS1983

Instructions for the submission of data to the Master Water Data Index

Instructions are given for the computerized processing of data prepared for entry into the Master Water Data Index of the U.S. Geological Survey 's National Water Data Exchange (NAWDEX), as discussed in the manual entitled ' Instructions for the Preparation of Data for the Master Water Data Index. ' Two processing procedures are provided: The edit of data and the submission of data for storage in the Master Water Data Index. These instructions are applicable to both new data being submitted for storage and to update transactions for data previously processed and stored. (USGS)

Open-File Report↗
USGS1981

National Water Data Exchange (NAWDEX) System 2000 data retrieval manual

The manual offers general instructions on the use of SYSTEM 2000 to retrieve any type of data, and specific instructions on how to retrieve data from the U.S. Geological Survey 's Water Data Sources Directory and Master Water Data Index Data Bases. The manual is divided into five major sections plus six appendixes for reference. Section I contains introductory material, including the purpose and scope of the manual, instructions on how to use the manual, basic computer concepts, and basic SYSTEM 2000 concepts. Section II contains basic instructions on retrieving and displaying data, and section III goes into more complex retrievals. Section IV explains how to make efficient use of techniques developed in sections II and III. Section V summarizes and discusses practical applications, and section IV contains all the appendixes required for reference. (USGS)

Open-File Report↗
USGS1973

Velocity and depth measurements for use in computation of reaeration coefficients

Empirical computation of reaeration coefficients generally requires knowledge of mean velocity and mean depth of a stream. A practical method for obtaining this knowledge is described herein. The method involves time-of-travel, streamflow, and cross-sectional measurements, the development of discharge-velocity curves, streamflow profiles, and the computation of cross-sectional areas. Values for mean velocity and mean depth are determined and related to mean discharge.

Open-File Report↗
USGS1973

Index to water-quality data available from the U.S. Geological Survey in machine-readable form to December 31, 1972; Northeastern region

This report lists water quality stations operated by the U.S. Geological Survey for which data are available in machine-readable form. The data are the results of analyses of water samples and indicate the chemical and physical characteristics of surface and ground water. Samples of surface water were collected at designated sites at predetermined intervals such as once daily, weekly, monthly, or less frequently. Samples of ground water were collected from wells infrequently and on an irregular basis.

Water-Resources Investigations Report↗
USGS1973

Index to water-quality data available from the U.S. Geological Survey in machine-readable form to December 31, 1972: Southeastern Region

This report lists water quality stations operated by the Geological Survey for what data are available in machine-readable form. The data are the results of analyses of water samples and indicate the chemical and physical characteristics of surface and ground water. The stations are listed according to station number within each State. The water quality data are identified by 5-digit parameter codes and are grouped into twenty-one parameter categories. The analytical results for all samples in any one year are then grouped within the parameter categories. The report lists the available retrieval options, the machine-readable output options user charges, and how to obtain the data.

Water-Resources Investigations Report↗
USGS1971

Analysis of stream-temperature variations in the Upper Delaware River Basin, New York

The effect of climatologic conditions and reservoir releases on downstream conditions was determined by means of statistical and graphical analyses of stream-temperature variations measured in the upper Delaware River basin, May-September 1964-67. Climatologic conditions normally increase water temperatures from February through July and decrease them from August through January. Summer releases from New York City's Cannonsville Reservoir were observed to decrease water temperatures by 13?C (Celsius) in 8.1 miles and by 1?C, 55.9 miles downstream from this reservoir. Releases from New York City's Pepacton Reservoir were observed to decrease water temperatures by 11?C in 31.0 miles and between 1?-3?C in 71.0 miles downstream from this reservoir. The influence of releases from these reservoirs is dependent upon five factors: thermal stratification in the reservoir, depth at which water is withdrawn from the reservoir, rate of release, distance downstream from the reservoir, and climatologic conditions.

Water Supply Paper↗