QuestionHow do I read the GOES Imager data provided by CLASS?
AnswerThe GOES data provided by CLASS comes in a few formats: satellite format converter developed at NCDC will convert CLASS-netCDF and Area files to netCDF format (applying a calibration and navigation as needed).
The weather and climate toolkit developed at NCDC will calibrate and remap CLASS-Area files to various output formats, some of which can be used with GIS software.
netCDF website for more information on using the netCDF library to read netCDF files. For your reference sample output from the ncdump utility on a netCDF file provided by CLASS is provided:
ncdump -h goes12.2004.306.173144.BAND_02.L4076651
McIDAS (Man Computer Interactive Data Access System)
Area files can be directly read, navigated and calibrated using the McIDAS software. Also, see the McIDAS Users' Group web site for more details.
Fortran code can be made available for reading Area files from NCDC. The code is compiled on a linux system using Lahey-Fujitsu Fortran 95 compiler (lf95) version 6.20d. However, the current version uses compiler-specific functions (lstat) to perform the read. Contact the NCDC.Satorder@noaa.gov if you think this may be the best option for you.
Scientists at NCDC have made their read routines available for IDL users. The routines read Area files provided by CLASS (an example is provided which can be used with the sample data). Routines and data are available as a gzipped tar file.
Other tools are available for displaying GOES McIDAS area files. These include:
If you are interested in developing your own Area format reader (or your required programming language is not listed above) the area format is described by the McIDAS Users' Group.