This page provides links to several sites that may be of interest to you.
Plotting and Visualization Tools
GRIB and GRIB2 Information
This is the home page for University Corporation for Atmospheric Research (UCAR), which manages NCAR.
This is the home page for National Center for Atmospheric Research (NCAR).
This is the home page for the NOAA Global Systems Division: https://esrl.noaa.gov/gsd/.
NCEP/EMC Web Site
This is the homepage of the National Centers for Environmental Prediction (NCEP) - Environmental Modeling Center (EMC), the institution where UPP code developed.
The Unidata site provides resources for using netcdf library.
You may need to acquire the NCAR Graphics Library for some applications.
If you are using NCL (NCAR Graphics Command Language) or would like to learn more about NCL, you may want to visit this page, which provides many examples of ncl scripts which may be used to generate publication quality graphics.
NCAR Computational & Information Systems Laboratory (CISL)
NCAR CISL provides computing support on NCAR's major frames as well as data support. Please visit the CISL website for more information.