| 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. |
| Genre: | Conference Paper |
| ProdID: | 70016287 |
| Citation Author: | Latkovich, V. J.; Shope, W. G. |
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| Citation Editor: | Sodhi Devinder S. |
| Citation End Page: | 747 |
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| Citation Language: | English |
| Citation Larger Work Title: | Cold Regions Engineering |
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| Citation Number Of Pages: | 9 |
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| Citation Publisher: | Publ by ASCE |
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| Citation Search Results Text: | New hydrologic instrumentation in the U.S. Geological Survey; 1991; Conference Paper; Cold Regions Engineering; Latkovich, V. J.; Shope, W. G. |
| Citation Start Page: | 739 |
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| Citation Year: | 1991 |
| Type: | citation/reference |
| Text: | New hydrologic instrumentation in the U.S. Geological Survey; 1991; Conference Paper; Cold Regions Engineering; Latkovich, V. J.; Shope, W. G. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 1 Jan 1991 00:00 -0600 |
| Publisher: | Publ by ASCE |
