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New hydrologic instrumentation in the U.S. Geological Survey

By:
,
Edited by:
Sodhi Devinder S.

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Abstract

New water-level sensing and recording instrumentation is being used by the U.S. Geological Survey for monitoring water levels, stream velocities, and water-quality characteristics. Several of these instruments are briefly described. The Basic Data Recorder (BDR) is an electronic data logger, that interfaces to sensor systems through a serial-digital interface standard (SDI-12), which was proposed by the data-logger industry; the Incremental Shaft Encoder is an intelligent water-level sensor, which interfaces to the BDR through the SDI-12; the Pressure Sensor is an intelligent, nonsubmersible pressure sensor, which interfaces to the BDR through the SDI-12 and monitors water levels from 0 to 50 feet; the Ultrasonic Velocity Meter is an intelligent, water-velocity sensor, which interfaces to the BDR through the SDI-12 and measures the velocity across a stream up to 500 feet in width; the Collapsible Hand Sampler can be collapsed for insertion through holes in the ice and opened under the ice to collect a water sample; the Lighweight Ice Auger, weighing only 32 pounds, can auger 6- and 8-inch holes through approximately 3.5 feet of ice; and the Ice Chisel has a specially hardened steel blade and 6-foot long, hickory D-handle.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
New hydrologic instrumentation in the U.S. Geological Survey
ISBN:
0872627985
Year Published:
1991
Language:
English
Publisher:
Publ by ASCE
Publisher location:
New York, NY, United States
First page:
739
Last page:
747
Number of Pages:
9
Conference Title:
Sixth International Cold Regions Engineering Conference
Conference Location:
West Lebanon, NH, USA
Conference Date:
26 February 1991 through 28 February 1991