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[McIDAS #TPA-182583]: Radar traversal using polar coord.

Hi John,

> I am currently working on a project that requires me to use radial velocity
> data from radars to calculate a few parameters. Due to the volume of radar
> data that needs to be processed, this must be automated by a script. My
> question concerns the way that I can use IMGPROBE to traverse these images to
> obtain the radial velocity values. From what I can see, there is no way to
> move from the radar outwards along one radial. The closest option appears to
> be LINE, but this process cannot be automated and is not necessarily along one
> radial. Is there something that you can suggest doing to collect the radial
> velocity values along one constant radial direction? Ultimately this will be
> done along multiple azimuth angles, so being able to traverse the image with
> polar coordinates would be very useful.

The ADDE server for NEXRAD Level III products (e.g., radial velocity, etc.)
first rasterizes the product before serving it to applications (like IDV,
McIDAS-V and McIDAS-X).  Given this, getting the original radial data is
not available to the end user.  One could, I guess, drive the IMGPROBE
interrogation along conceptual radials and get data values that way, but
it would not result in the exact same data as interrogation from original

Would values from a pseudo-radial be sufficient for your purposes?


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Ticket Details
Ticket ID: TPA-182583
Department: Support McIDAS
Priority: Normal
Status: Closed

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