HYSPLIT Forum: hysplitbbs.arl.noaa.gov

Hello

I have a question.
Hysplit model equations written on them, what are the equations?

Here is a description of the HYSPLIT model.
http://www.arl.noaa.gov/documents/reports/arl-224.pdf

I only have executable profile.exe where I can find source code to edit it and compile? Is there any documentation on the format of gdas files so I can write my program to extract desired values at desired height and long and lat?

To obtain HYSPLIT source code, please refer to https://www.ready.noaa.gov/HYSPLIT_linux.php. All meteorological files used by HYSPLIT, including GDAS archived by ARL, use the ARL Data Format as described in https://www.ready.noaa.gov/hysplitusersguide/S141.htm.