Overview of hydro-acoustic current-measurement applications by the U.S. geological survey in Indiana
Proceedings of the IEEE Working Conference on Current Measurement
By: Scott E. Morlock and James A. Stewart
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Abstract
The U.S. Geological Survey (USGS) maintains a network of 170 streamflow-gaging stations in Indiana to collect data from which continuous records of river discharges are produced. Traditionally, the discharge record from a station is produced by recording river stage and making periodic discharge measurements through a range of stage, then developing a relation between stage and discharge. Techniques that promise to increase data collection accuracy and efficiency include the use of hydro-acoustic instrumentation to measure river velocities. The velocity measurements are used to compute river discharge. In-situ applications of hydro-acoustic instruments by the USGS in Indiana include acoustic velocity meters (AVM's) at six streamflow-gaging stations and newly developed Doppler velocity meters (DVM's) at two stations. AVM's use reciprocal travel times of acoustic signals to measure average water velocities along acoustic paths, whereas DVM's use the Doppler shift of backscattered acoustic signals to compute water velocities. In addition to the in-situ applications, three acoustic Doppler current profilers (ADCP's) are used to make river-discharge measurements from moving boats at streamflow-gaging stations in Indiana. The USGS has designed and is testing an innovative unmanned platform from which to make ADCP discharge measurements.
Suggested Citation
Morlock, S.E., Stewart, J., 1999, Overview of hydro-acoustic current-measurement applications by the U.S. geological survey in Indiana: Proceedings of the IEEE Working Conference on Current Measurement, p. 112-116.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Overview of hydro-acoustic current-measurement applications by the U.S. geological survey in Indiana |
| Series title | Proceedings of the IEEE Working Conference on Current Measurement |
| Year Published | 1999 |
| Language | English |
| Publisher | IEEE |
| Publisher location | Piscataway, NJ, United States |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Proceedings of the IEEE Working Conference on Current Measurement |
| First page | 112 |
| Last page | 116 |
| Conference Title | Proceedings of the 1999 IEEE 6th Working Conference on Current Measurement |
| Conference Location | San Diego, CA, USA |
| Conference Date | 11 March 1999 through 13 March 1999 |