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What is available for downloading

The Windows and Mac distributions come with all executables pre-compiled. However, for installation on a UNIX or LINUX system, the code must be compiled locally or pre-compiled binaries must be installed. Pre-compiled binary files are available for several LINUX operating systems (see below for requesting these files). HYSPLIT users who would like to request the LINUX source code so that the code can be compiled locally may request access to the HYSPLIT source code SVN repository.

LINUX Executables

LINUX executables may be freely obtained from Christopher Judd at the New York State Department of Health. To obtain the latest executables, contact Christopher directly via email at

LINUX Source Code

A LINUX source code repository is available from NOAA ARL for non-commercial use only. Users must first register for HYSPLIT access at:

After registering, users can request the LINUX source code by sending an request via email to

After obtaining the SVN repository login username and password (different from your HYSPLIT registration username/password) additional instructions for installing and compiling the model can be found on the HYSPLIT Tutorial at:

If you make modifications and/or add additional capabilities to the code, we expect the code to be shared with the HYSPLIT user community. In that respect, please email with any major changes to the code (along with documentation) and they will be added to the repository. HYSPLIT is a community development effort.

Return to the HYSPLIT page.
Modified: January 31, 2017
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