This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Hi Steve,
What do you mean "run it"? Do you mean, launch a display program? Assuming under a ~gempak account, you have GEMPAK5.9.1/, and you have created the symbolic link from ~gempak/GEMPAK5.9.1 to ~gempak/NAWIPS; you can then "source ~gempak/NAWIPS/Gemenviron" for a csh/tcsh or .cshrc, or ". ~gempak/NAWIPS/Gemenviron.profile" for a .profile, .bashrc etc. After the Gemenviron variables are in your environment: - type "ntl". That will launch the gui bar. - Click on the NMAP2 icon. - See the tutorial, such as displaying METAR observations with: http://www.unidata.ucar.edu/software/gempak/tutorial/nmap_data.html
I still don't have any data though. And I have pqact.gempak pqact files and have made sure the gemenviron file is read at startup.
The NMAP2 display will provide you with a gui interface for satellite, radar, model, surface, upperair obs, etc. - Click on the NWX icon. - see the tutorial under: http://www.unidata.ucar.edu/software/gempak/tutorial/nwx.html
This still works fine.
By testing out those programs, you will find out if your data is being found under the expected $GEMDATA/ which is ~ldm/data/gempak (...however you have that data/ directory under the ~ldm user located).
I re-ran the source data. I am stumped. And I am also stumped on how to make the national mosaic and dump it to a GIF without running the ntl display and having it up all of the time. Thoughts?
******************************************************************************* Gilbert Sebenste ******** (My opinions only!) ****** Staff Meteorologist, Northern Illinois University **** E-mail: address@hidden *** web: http://weather.admin.niu.edu ** *******************************************************************************