Stream Gaging - Boogie Dopp
BoogieDopps are frequently used to measure streamflow by the USGS in Iowa. The BoogieDopp is used in situations that are similar to the tethered boat mounted ADCP. The BoogieDopp is advantageous because the movement of bed load along the bed of the stream does not affect the velocities measured by the equipment. It is lightweight and is very quick to set up for streamflow measurements. An entire streamflow measurement can easily be done by one person. The disadvantages of the BoogieDopp are that it cannot measure through high sediment concentrations, and must remain stable while measuring a vertical profile. For example, velocities may be biased if winds cause the BoogieDopp to move around while a vertical profile is being measured.
A transducer is mounted to the bottom of a small "knee-board" style boat, with is tethered by a rope to an operator on the bridge. The software is installed on a PDA and is transmitted from the transducer to the PDA via a radio modem.
Photos were taken at Eagle Creek at Zionsville, IN, by John Poehler. Courtesy of the Indiana Water Science Center of the U.S.G.S
OSW Hydroacoustics |
Indiana Hydroacoustics |
Stream Gaging |
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