I have a simple Surfer ASCII grid to NetCDF converter if anybody is
interested. It's new, and needs testing.
We typically make U and V grids in Surfer, followed by arrow plots in Surfer
also. I don't see why you couldn't also use these for a NetCDF route.
If you're looking for good candidate ASCII grid formats to convert to
NetCDF, Surfer is obviously a priority, IMHO, and ESRI ArcGrid comes next
(ASCII and binary flavors).
Murray Brown
----- Original Message -----
From: "Don Murray" <dmurray@xxxxxxxxxxxxxxxx>
To: "satmet.hp" <satmet.hp@xxxxxxxxxx>
Cc: <idvusers@xxxxxxxxxxxxxxxx>
Sent: Tuesday, February 27, 2007 3:40 PM
Subject: Re: flow vectors from regular u and v arrays
Hi HP-
satmet.hp wrote:
I have files with the u resp v components of regularly spaced wind
vectors (ASCII arrays). How can I construct flow vectors.
There is no direct ASCII grid reader in the IDV, but it is
on our list of things to do. The big problem is deciding on
a format. The underlying VisAD library has a method for reading
ASCII grids and we are looking at using that as well as a
netCDF-Java IOSP.
There are a couple of options:
- use the VisAD text reader and then try to display the
resulting data structure using the Any Field formula and
selecting a flow display.
- use the GEON-IDV ASCII->netCDF converter described at:
http://geon.unavco.org/unavco/IDV_for_GEON_data_converters.html
Stu Wier might want to chime in on this since he's the one
who developed it.
Can you send a sample file to support-idv?
Don
*************************************************************
Don Murray UCAR Unidata Program
dmurray@xxxxxxxxxxxxxxxx P.O. Box 3000
(303) 497-8628 Boulder, CO 80307
http://www.unidata.ucar.edu/staff/donm
*************************************************************
