By John Brosowsky, Product Development Director, Saint Cloud, Minnesota, USA

Download the script.

Code Summary

ALOHA (Areal Locations of Hazardous Atmospheres) is software developed by the Office of Emergency Management, EPA, and the Emergency Response Division, NOAA for evaluating the release of hazardous chemical vapors. ALOHA is desktop software for Windows or Macintosh that is available for free downloading at:

http://www.epa.gov/oem/content/cameo/aloha.htm

ALOHA has no map or GIS built into it. This ArcScripts example demonstrates how to upload ALOHA output to an ArcGIS Server Web ADF application in order to overlay a chemical cloud footprint over a map in a web browser.

ALOHA is used by Firefighters, State Emergency Response Commissions (SERCs) and Tribal Emergency Response Commissions (TERCs), Local Emergency Planning Committees (LEPCs), Industry, Schools, Environmental Organizations, and Police Departments, and Homeland Security. ALOHA can be used after a hazardous materials incident has occurred, and it can also be used before an incident has occurred to model possible outcomes for pre-planning purposes.

This ArcScripts ALOHA example can add a valuable tool to any ArcGIS Server based Public Safety and Homeland Security Situational Awareness application.

After you download the package be sure to first read the "ALOHA Custom Tool Library for ESRI ArcGIS Server.pdf" document.