 is very clean. And even at low velocities, there is not a lot of acoustic noise. At this point, all diagnostics point towards an excellent deployment. We are confident that once this station is rated, we will have good, solid, reliable stream flow record.
This is a shot of the old Medicine Street Bridge. It's about 1000 feet downstream of the outlet gage. This is the bridge in which we used to make all of our current meter measurements from.
Unfortunately in-between the gage and the measuring section is the city of Yuma intake. This is where the city diverged for their municipal supply. Because of this diversion between the control and the measuring section, all current meter measurements had to be coordinated with the city of Yuma so that they could keep track of their pumping right during the measurement. The pumping right was provided in million gallons per day and was added to total on the discharge measurement which introduced some error.
With the use of an ADCP, we're now able to measure above the city of Yuma diversion, therefore eliminating the error involved in adding the diversion back to our measurements.
Today we're using the RDI Rio Grande 1200-kilohertz ADCP mounted in the Ocean Science trimaran to make the measurement. You can see we have a permanent tagline installed just below the gage and they're using a radio-controlled cable rover to make the transects. The cable rover works real good. It allows us to maintain a very constant boat speed.
The transects are smooth and steady. We anticipate the station to be 100% hydroacoustic within the next few months. We are confident that the record will be greatly improved.
Title: Hydroacoustics for Collecting Streamflow Data
Description: The USGS Yuma Field Office demonstrates how hydroacoustics are helping them collect accurate streamflow data.
Location: AZ, USA
Date Taken: 3/22/2010
Video Producer: U.S. Geological Survey
Note: This video has been released into the public domain by the U.S. Geological Survey for use in its entirety. Some videos may contain pieces of copyrighted material. If you wish to use a portion of the video for any purpose, other than for resharing/reposting the video in its entirety, please contact the Video Producer/Videographer listed with this video. Please refer to the USGS Copyright section for how to credit this video.
Suggest an update to the information/tags?
* DOI and USGS link and privacy policies apply.