Michael,
I have been trying to do something like this for my use. I worked on
two types of mechanisms.
1. A set of routines would help to interactively subset and plot as you do
in grads.
I usually open a netcdf data and with the use of this library and
can say things like
setlat(-30,30)
or
settime("1Jun1999,20Jun1999")
etc
and do things like
shaded(sst) or contour(sst)
This routines are not so well developed and needs lot of working.
But I can send it to you over the weekend if you are interested.
2. The second way is not really for interactive plotting. It was developed
as part of an automated climate monitoring system. In this case we
set up a data base with some predefined conventions and structure.
By data base I mean just a flat data base (none of the SQL stuff).
All data is ordered with a particular structure-
For instance TMI/Mean/2007/sst.nc or NCEP/Anomaly/2007/hgt_1000.nc
We then use an interface to retrieve data in a relatively painless way
For instance to get a time series of TMI SST anomalies area-averaged
between 30 S and 30 N and 40 E to 120 E, we could say
opt=True
opt_at_DataSource="TMI"
opt_at_DataType="Anomaly"
opt_at_DataPeriod=(/"1Jan1997,31Jan2007"/)
opt_at_Lat=(/-30,30/)
opt_at_LatAve=True
opt_at_Lon=(/40,120/)
opt_at_LonAve=True
var=sliceData(opt) ; returns sst averaged over tropical Indian Ocean
for period 1Jan1997 to 31Jan2007.
If these are of interest to you, please let me know.
saji
* Michael Uddstrom <m.uddstrom_at_niwa.co.nz> [2007-07-12 17:02:24 +1200]:
> Perhaps a dumb question - but...
>
> Has anyone built a gui to sit on top of ncl, so that it is easy to
> interactively select and display fields in a file (or files) - a bit like a
> "super ncview" application.
>
> If not (which we suspect might be the case) what would you suggest (GrADS,
> IVE, ...?)
>
> Thanks very much for your help
>
> Michael
>
> --
> Dr. Michael J. Uddstrom
> Science Leader: Environmental Forecasting
> Principal Scientist: Meteorology and Remote Sensing
> National Institute of Water and Atmospheric Research
> Private Bag 14-901, Wellington, New Zealand
> DDI: +64 4 386 0365, Fax: +64 4 386 2153,
> Home: +64 4 478 9734
> http://www.niwa.co.nz/
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-- Saji N. Hameed APEC Climate Center +82 51 668 7470 National Pension Corporation Busan Building 12F Yeonsan 2-dong, Yeonje-gu, BUSAN 611705 saji_at_apcc21.net KOREA _______________________________________________ ncl-talk mailing list ncl-talk_at_ucar.edu http://mailman.ucar.edu/mailman/listinfo/ncl-talkReceived on Wed Jul 11 2007 - 23:18:11 MDT
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