| Abstract: | Very little information is available concerning acoustic velocity meter (AVM) operation, performance, and limitations. This report provides a better understanding about the application of AVM instrumentation to streamflow measurment. Operational U.S. Geological Survey systems have proven that AVM equipment is accurate and dependable. AVM equipment has no practical upper limit of measureable velocity if sonic transducers are securely placed and adequately protected, and will measure velocitites as low as 0.1 meter per second which is normally less than the threshold level for mechanical or head-loss meters. In some situations the performance of AVM equipment may be degraded by multipath interference, signal bending, signal attenuation, and variable streamline orientation. Smaller, less-expensive, more conveniently operable microprocessor equipment is now available which should increase use of AVM systems in streamflow applications. (USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 9927 |
| Citation Author: | Laenen, Antonius; Smith, Winchell |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | viii, 53 p. :ill., maps ;28 cm. |
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| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 82-329 |
| Citation Search Results Text: | Acoustic systems for the measurement of streamflow; 1982; OFR; 82-329; Laenen, Antonius; Smith, Winchell |
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| Citation Year: | 1982 |
| Type: | citation/reference |
| Text: | Acoustic systems for the measurement of streamflow; 1982; OFR; 82-329; Laenen, Antonius; Smith, Winchell |
| URL (THUMBNAIL): | http://pubs.usgs.gov/of/1982/0329/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/of/1982/0329/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
| Superseded by: |
http://pubs.er.usgs.gov/publication/wsp2213
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