HYSPLIT - Hybrid Single Particle Lagrangian Integrated Trajectory Model

The HYSPLIT model can be run interactively on the READY web site or installed on a PC (Mac) and run using a graphical user interface (GUI).

HYSPLIT-WEB (Internet-based)

• Run HYSPLIT Trajectory Model
• Run HYSPLIT Dispersion Model
• Run HYSPLIT for Volcanic Ash
• Spain HYSPLIT
• HYSPLIT for National Weather Service Forecast Offices (NOAA employees only)

PC Windows-based HYSPLIT

• Download Public (unregistered) Version
• Download Registered Version (registration required)
• Graphical Utilities
• Meteorological Data Conversion Utilities

HYSPLIT-compatible Meteorological Data

• NOAA ARL Archived Data
• NOAA NCEP Forecast Data Operational FTP Server
• NOAA ARL Forecast Data FTP Server
• Arctic Region Supercomputing Center (ARSC) HRRR Forecast Data
  • Model Details
• Geosystems Research Institute (GRI) WRF Model Forecast Data
• University of Alaska Fairbanks GDAS Archive FTP server

Apple-based HYSPLIT

• Download Registered Version (registration required)

Email Version

• Email Trajectories

Modules

• Chemical Conversion

User Contributions

• TrajStat a GIS Trajectory Analysis Tool
• MeteoInfo a GIS Meteorology-Dispersion Model Analysis Tool

Documentation

• HYSPLIT Model Overview
• Example HYSPLIT Products
• HYSPLIT User's Guide (PDF, 2.1 MB) or (zipped HTML file ~1.9MB)
• Description of the HYSPLIT_4 Modeling System (PDF, 182 KB)
• Research Papers Referencing HYSPLIT
• Publications
• Web Pages Referencing HYSPLIT
• Verification Results using the DATEM archive

On-Line Training

• HYSPLIT Applications for Emergency Decision Support (COMET)
• Dispersion Basics (COMET)
• HYSPLIT Training Workshops