An official website of the United States government
Here's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
The downlooking method uses acoustic backscatter data recorded by a downlooking acoustic Doppler current profiler (ADCP), and they are related to discrete point samples of suspended- sediment concentration (SSC). The appeal of the downlooking acoustics method in relation to continuous SSC monitoring is that it measures much more of a river cross section and the variability therein and results in a discrete estimate of SSC in the cross section at a given point in time. The high spatial resolution visualizations of suspended sediment from the downlooking acoustics method are unmatched by any other physical or acoustic method.