Quickwave and Vector sampling

Up to Velocimeters - single point

Questionable Pressure data?

Posted by ARN at September 07. 2010

Hi,

My second question was regarding using Quickwave. I tried to use the .vec file I have as the input file (it is a one hour continuous data set at 16 Hz) to get the wave data out of it, however I got the following notice:

'.. .whr does not contain wave burst data'.  

Is there a particular mode in which the Vector should be run to get wave statistics out of it, using QuickWave?

 

Thanks!

ARN

Attachments

Re: Questionable Pressure data?

Posted by Jonas Røstad at September 08. 2010
Dear Arn,

Regarding the QuickWave question:  there is some statistical limitations in wave processing which leads to some deployment planning rules/tips.

Could you please upload the data set to ftp://ftp.nortek-as.com/pub/incoming/ ? This will help understanding your problem better.



Best regards

Jonas

Re: Questionable Pressure data?

Posted by ARN at September 08. 2010

Dear Jonas,

Regarding the QuickWave issue,  I have uploaded the file that you asked for (pivsyncrun002.vec) in the folder. 

Thanks a lot for the help!

ARN

Re: Quickwave and Vector sampling

Posted by Ayal Anis at September 11. 2010

Hi,

I had a similar question; here is the answer I received from Torstein:

"Hello Ayal,

The Quickwave software is intended to only work with burst data.  More specifically meaningful bursts that use a sampling rate traditionally used for wave measurements.

We recognize that there is a growing number of users that want to correlate waves with properties such as turbulence and oxygen flux.  We intend to make a tool that downsamples, etc. so that the data file can be processed in Quickwave.  I am unsure if continuous sampling will be included in this tool, at least in the first instance of this tool.

Sorry that I do not have a quick solution to provide.  It actually sounds like a good project for one of students - ie PUV wave processing.

kind regards,
Torstein"

In the meantime you may want to check out DIWASP - a Matlab package to process wave data;

See also: http://www.coastal.udel.edu/coastal/software.html

 

Best,

Ayal

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