NOAA Air Resources Laboratory

HYSPLIT
On-line Transport and Dispersion Model

NOTICE: As of October 1, 2009 we are no longer supporting this HYSPLIT web site. Users should begin using the new HYSPLIT web site at:
http://ready.arl.noaa.gov/HYSPLIT.php.

If you are a registered user and still need access to the forecast dispersion simulation or to download the registered version of PC HYSPLIT, you will need to create an account on the new web site. To create an account on the new web site follow the instructions of the following web page:
https://ready.arl.noaa.gov/hynew/register.php.



TRAJECTORY MODEL

HYSPLIT Icon

DISPERSION MODEL



Publications using HYSPLIT results, maps or other READY products provided by NOAA ARL are requested to include an acknowledgement of, and citation to, the NOAA Air Resources Laboratory. Appropriate versions of the following are recommended:
Citation
Draxler, R.R. and Rolph, G.D., 2003. HYSPLIT (HYbrid Single-Particle Lagrangian Integrated Trajectory) Model access via NOAA ARL READY Website (http://www.arl.noaa.gov/ready/hysplit4.html). NOAA Air Resources Laboratory, Silver Spring, MD.

Rolph, G.D., 2003. Real-time Environmental Applications and Display sYstem (READY) Website (http://www.arl.noaa.gov/ready/hysplit4.html). NOAA Air Resources Laboratory, Silver Spring, MD.

Acknowledgment
The authors gratefully acknowledge the NOAA Air Resources Laboratory (ARL) for the provision of the HYSPLIT transport and dispersion model and/or READY website (http://www.arl.noaa.gov/ready.html) used in this publication.


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