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Measuring water surface and streambed elevation changes with the acoustic velocity metering system
Author(s) -
Laenen Antonius
Publication year - 1983
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr019i005p01317
Subject(s) - underwater , metering mode , transducer , measure (data warehouse) , acoustics , geology , elevation (ballistics) , surface water , hydrology (agriculture) , environmental science , geotechnical engineering , oceanography , physics , geometry , optics , mathematics , database , environmental engineering , computer science
Acoustic velocity metering systems used to measure the water velocity along a diagonal path across a stream can also be used to measure stage and streambed changes. Underwater acoustic transmissions reflected from the water surface can accurately measure depth above transducers. Similarly, signals reflected from the streambed can indicate streambed changes in the vicinity midway between transducers.