[ferret_users] station data

["Ansley C. Manke" <ansley.b.manke@xxxxxxxx>]

Hello,

I'm starting a new thread on this topic. Saurabh writes,

Dear Martin,

G'day

The problem that I have is like this.... and its totally out of my knowledge that how to use such data and plot it. In this data everything is a variable so I am not able to solve it out.

    1> ./adpc.nc  (default)
 name     title                                         I         J         K         L
 LON      Longitude                                ...       ...       ...       1:4503
 LAT      Latitude                                   ...       ...       ...       1:4503
 DEPTH    Depth                                   ...       ...       1:60      1:4503
 U        Zonal velocity component           ...       ...       1:60      1:4503
 V        Meridional velocity component    ...       ...       1:60      1:4503

There's development underway in Ferret/PyFerret that will make station data using the "Discrete Sampling Geometries" standard easier to use and in a more automated way.  The discrete sampling geometries standard for netCDF files includes definition of a few specific attributes and variables in the files which allow the software to navigate the file and work with what's there.  A file such as the above looks like it may be - or could be made to be - one of the "profile" file types.  Is it a set of profiles, each at a single station?

Until the Ferret update is ready, you can still work with data like this. This would show the stations:

  yes? plot/vs lon,lat     ! maybe also set a symbol type and symbol size.

Maybe see what's going on with the depth data.  Perhaps not all the stations at once,

   yes? shade/L=1:200 u

You could use a SCAT2GRID function to put this data onto an xy grid, if there is enough coverage for that to make sense.

   yes? show function scat2grid*xy