Dear netcdfgroup,
After reading information regarding all of the freely-available software
for analyzing netCDF files, from the Unidata website, I am still not
sure which strategies are best to perform the following two tasks:
FIRST. Using atmospheric numerical model output (e.g. NAM, formerly Eta)
already written to either GRIB or netCDF formatted files, I would like
to run command-line software (linux based) that will (1) read/import
data from these numerical model GRIB/netCDF formatted files and use this
data to (2) calculate parameters such as horizontal divergence of wind
and layer-averaged omega, for a particular location (defined by
latitude/longitude) -- and output the calculated value to an ASCII file.
In other words, I want to compute parameters for a particular location
based on available data variables already in the netCDF/GRIB file.
SECOND. I want to run command-line (linux based) software that will
allow me to extract data from atmospheric numerical model output already
written to netCDF or GRIB files -- at a specific location (defined by
latitude/longitude). For example, output from the NAM is written to a
Grid with grid spacing of 12-km. I want to be able to extract the
_interpolated value_ of a particular variable at a particular
latitude/longitude point -- and output the value to an ASCII file.
Any help will be greatly appreciated.
Waylon
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