HYSPLIT-WEB Interface Overview

HYSPLIT-WEB Interface
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Main Menu Overview

HYSPLIT-WEB is available in five versions or interfaces. An open version is available for running HYSPLIT using only archived meteorology (no forecasts can be run). This version is labeled, Run HYSPLIT with archive data, and is available as the first menu item on the main HYSPLIT-WEB page at:

http://www.arl.noaa.gov/ready/hysplit4.html

The second menu item labeled, Run HYSPLIT with forecast data, which this training is based on, requires a username and password and provides access to both archive and forecast meteorology as well as some advanced features of HYSPLIT. A username and password can be obtained by registering with NOAA ARL at the link provided on the web page. To qualify for registration the user must be affiliated with an institution engaged in atmospheric sciences or in the provision of atmospheric operational products, and whose credentials can be verified. However, some exceptions can be made on a case-by-case basis.

The third menu item labeled, HYSPLIT for Volcanic Ash, provides access to current ash forecasts, hypothetical eruptions, and the ability to run HYSPLIT preconfigured for volcanic ash simulations. This site is also open to the public.

The fourth menu item labeled, NWS WFO Access Only, provides National Weather Service Weather Forecast Offices (WFOs) access to a version of HYSPLIT preconfigured for NWS emergency response needs, This site is password- protected and is only available to WFOs.

The last menu item labeled, Internal Access Only, is used by NOAA ARL to test and evaluate new additions to HYSPLIT-WEB and to provide advanced options not yet implemented in the other versions. This site is also password-protected.

Pre-installation Program Options

The following optional, but highly suggested, programs should be installed prior to running HYSPLIT-WEB. These programs may already be installed locally if PC HYSPLIT has been installed previously.

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