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[IDV #OMA-852870]: How to subtract off a mean profile or standard atmosphere profile?
- Subject: [IDV #OMA-852870]: How to subtract off a mean profile or standard atmosphere profile?
- Date: Thu, 20 Dec 2012 09:59:22 -0700
> Hello IDV folks.
>
> For fields like T or theta or geopotential, I wish I could remove a reference
> profile
> T(p) to subtract off the huge vertical gradient, so that horizontal gradients
> (which are so crucial for dynamics) can be discerned better in cross sections.
>
> Is there a way to subtract a zonal mean, or the global mean, or even a
> standard atmosphere, from every column in a 3D grid?
> I can't find anything useful in here.
> http://www.unidata.ucar.edu/software/idv/docs/userguide/tools/JythonLib.html
>
Brian,
We do have some examples in the workshop document:
http://www.unidata.ucar.edu/software/idv/docs/workshop/formulas/MoreWithJython.html
I am not fully understanding your requirement, but this may help.
Yuan
>
> I thought about subtracting the initial TIME using
> differenceFromBaseTime(field),
> but this introduces a lot of spatial structure from the initial spatial
> fields,
> obscuring the structure of the time being analyzed.
>
>
> Thanks for any suggestions.
> And Merry Christmas!
> Brian
>
> Brian Mapes
> address@hidden<mailto:address@hidden> or address@hidden<mailto:address@hidden>
>
>
>
>
>
Ticket Details
===================
Ticket ID: OMA-852870
Department: Support IDV
Priority: Normal
Status: Closed
