Can I use Acoustic Doppler current profilers (ADCPs) for only less than one day in the lake to investigate the water current?

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M. Basel Al Sawaf

It depends on your objectives!

I tried to use it coupled with continuous measurements using two crossed acoustic paths by means of time of travel approach.

You may refer to this work https://www.researchsquare.com/article/rs-581117/v1

Hening Huang

Depending on the types of data you want to collect, ADCP can be deployed on the bottom of the lake (at a site), looking up, or on a moving boat, looking down. You may check the website of the US Geological Survey about ADCP applications.