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Persistent negative vertical velocity in Signature 1000 data

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    Oddrun Christin Myklebust

    Thanks for addding a post reagarding this matter. We are looking at this and would appreciate any input others might have. The raw .ad2cp datafile is highly appreciated since this is the only way for us to study this in more detail. You can reach our support engineers and experts at support@nortekgroup.com

     

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    Lars Planert

    Hi William, the same issue here (Deployments: up-looking, cell sizes: 0.5 and 0.6m). Anomalies showed up in all 5 beams, typically within 4 cells distance from the transducers with some variation in height (height apparently depending on flow velocity).

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    Rachel Allen

    Hi William,

    I think we see something similar.  See the third subfig in the attached plot. I'm curious if you learn anything. 

    Rachel

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    Oddrun Christin Myklebust

    Hi Rachel,

    possible reason could be interference, but the only way for us to make sure is to study the raw data file. If possible it would be really helpful if you could send us the ad2cp file.

    Kind regards,

    Oddrun

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