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Julian X.L. Wang and James K. Angel, NOAA/Air Resources Laboratory ATLAS No. 1, April 1999, 73p

• Tech Memo ERL ARL-224 (PDF, 121 kB) Technical Information (Draxler, R.R. and G.D. Hess, 1997, Description of the Hysplit_4 modeling system, NOAA Tech Memo ERL ARL-224, Dec, 24p)
• HYSPLIT4 Online User's Guide (PDF, 3.6 MB) User's Guide for Win-95/98/NT/XP. An essential document if you will be using the PC version of the model. The document provides complete information about file formats, command line prompts, and descriptions of each input line for the Hysplit model's control file that is used to set up the simulation (from NOAA Tech Memo ERL ARL-230).

• Report to Congress (PDF, 22 Mb) - Mercury Contamination in the Great Lakes; Cohen, M.D., et al., 2007.
  • Further Information
• Tech Memo ERL ARL-100 (PDF, 0.4 Mb) - Forty-eight Hour Atmospheric Dispersion Forecasts at Selected Locations in the United States; Draxler, R.R., 1981.
• Tech Memo ERL ARL-112 (PDF, 1.1 Mb) - User's Guide for a Long-Range Multi-Layer Atmospheric and Dispersion Model; Draxler, R.R., 1982.
• Tech Memo ERL ARL-130 (PDF, 3.5 Mb) - Atlantic Coast Unique Regional Atmospheric Tracer Experiment (ACURATE); Heffter, J.L., et al., 1984.
• Tech Memo ERL ARL-140 (PDF, 1.2 Mb) - Metropolitan Tracer Experiment (METREX); Draxler, R.R., 1985.
• Tech Memo ERL ARL-142 (PDF, 1.6 Mb) - Cross-Apalachian Tracer Experiment (CAPTEX '83); Ferber, G.J., et al., 1986.
• Tech Memo ERL ARL-165 (PDF, 3.5 Mb) - Across North America Tracer Experiment (ANATEX), Weather Maps and Tracer Concentrations; Draxler, R.R., 1988.
• Tech Memo ERL ARL-166 (PDF, 0.8 Mb) - Hybrid Single-Particle Lagrangian Integrated Trajectories (HY-SPLIT): Model Description; Draxler, R.R., 1988.
• Tech Memo ERL ARL-167 (PDF, 3.4 Mb) - Across North America Tracer Experiment (ANATEX), Volume I: Description, Ground-level Sampling at Primary Sites, and Meteorology; Draxler, R.R., and J.L. Heffter, 1989.
• Tech Memo ERL ARL-175 (PDF, 2.1 Mb) - Across North America Tracer Experiment (ANATEX), Volume III: Sampling at Tower and Remote Sites; Heffter, J.L., and R.R. Draxler, 1989.
• Tech Memo ERL ARL-177 (PDF, 3.5 Mb) - Across North America Tracer Experiment (ANATEX), Volume II: Aircraft-based Sampling; Stunder, B.J.B., and R.R. Draxler, 1989.
• Tech Memo ERL ARL-195 (PDF, 1.2 Mb) - Hybrid Single-Particle Lagrangian Integrated Trajectories (HY-SPLIT): Version 3.0 -- User's Guide and Model Description; Draxler, R.R., 1992.
• Tech Memo ERL ARL-244 (PDF, 0.5 Mb) - A Historical Look at the Development of Regulatory Air Quality Models for the United States Environmental Protection Agency; Irwin, J.S., 2002.
• EPA Report 600 (PDF, 2.5 Mb) - Demonstration of a Long-Range Atmospheric Tracer System Using Perfluorocarbons, Final Report; Ferber G.J. et al.
• 4th Symposium on Turbulence, Diffusion, and Air Pollution (PDF, 261 kB) - Some Observations of the Along-Wind Dispersion Parameter; Draxler, R.R., 1979.
• NOAA Mesoscale Modelers Report: Opportunities for Collaboration(html, 177 kB)
• Airsheds and Watersheds II: A Shared Resources Workshop (html, 87 kB) - Organized and Hosted by the Alliance for the Chesapeake Bay and led by the Air Subcommittee of the Chesapeake Bay Program. 5-7 March, 1997

• READY Brochure (PDF, 139 kB)
• READY webcard (gif, 59 kB)

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