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Charles R. Showen

Publications and source records attributed to Charles R. Showen.

10 recordsLinked to original sources
USGS1985

WATER INFORMATION AVAILABLE FROM THE U. S. GEOLOGICAL SURVEY.

As a part of the Geological Survey's program of releasing water data to the public, two large-scale computerized systems are maintained. The National Water Data Storage and Retrieval System was developed to provide more effective and efficient management of data-releasing activities and provides for the processing, storage, and retrieval of surface-water, ground-water and water-quality data. Another service available is providing assistance to users of water data to identify, locate, and acquire needed data. This service is provided by the National Water Data Exchange, which has the mission to identify sources of water data and to provide the connection between those who acquire and those who use water data.

Conference Paper↗
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

Transmission of digital data

The Geological Survey, Water Resources Division, established a pilot project to evaluate equipment that would transmit date recorded on 16-channel paper tapes over voice-grade telephone lines from field offices to the Washington, D.C., Automatic Data Processing Unit (A.D.P. Unit). Such equipment would allow computer-processed data for current-purpose hydrologic data stations to be made available in a more timely manner. The specifications for the equipment were prepared in March 1970; invitations to bid were solicited, a contract was awarded and the equipment was delivered in November 1970. The equipment included two reader/transmitter units, and one receiver/recorder unit. The reader/transmitter units transmit manually entered fixed information, i.e. station number, beginning date and time, and ending date and time, and photoelectrically read and transmit the 16-channel paper tape data. The receiver/recorder unit records the transmitted information on IBM-compatible magnetic tape. This report summarizes the information gained from a year of pilot operation of the equipment, with and without a computer terminal at the field level, and makes recommendations for establishing a data-transmission system in the Water Resources Division.

Open-File Report↗