Skip Maine state header navigation

Agencies | Online Services | Help

Skip First Level Navigation | Skip All Navigation

MEMA Home > Programs> Communication> News > New versions of MARPLOT and ALOHA Software Available

New versions of MARPLOT and ALOHA Software Available


March 25, 2009


The EPA and NOAA have announced updated versions of MARPLOT and ALOHA software, free to users of the Computer-Aided Management of Emergency Operations (CAMEO) software. CAMEO, MARPLOT and ALOHA are used by emergency planners and responders to record inventory of hazardous materials at facilities, and map and project contamination areas if an accident were to occur.

The MARPLOT revision represents a significant update, which the ALOHA revision is a maintenance upgrade.

MARPLOT 4.0, available as of today, is compatible with Windows XP and Windows Vista. Working in its easy-to-use GIS interface, users can switch quickly between three basemaps: standard map files, high-resolution aerial photos, and topographical maps.

Users can draw overlay objects on the basemaps, customize the map view by specifying which objects and map layers are shown, and get LandView-like population estimates inside selected areas. Users can also click on a location of interest to get its elevation and an instant weather forecast, and can easily display ALOHA threat zones on the map.

Included web mapping services enable the latest U.S. Census county maps, and state and national map layers to automatically download as users work in MARPLOT. MARPLOT 4.0 can be downloaded from the CAMEO website.

Macintosh users should note that MARPLOT version 4.0 is currently available only for Windows. A Macintosh version is planned for the future. In the meantime, an Intel-based Mac can run MARPLOT 4.0 in Windows using Boot Camp or virtualization software that allows Windows to run on the Macintosh. Otherwise, the previous version of previous version of MARPLOT for the Mac version 3.3.3) can be downloaded(.

Also available as of today is ALOHA, which includes an updated chemical library, now with updated DIPPR data and updated toxic levels of concern (AEGLs, ERPGs, and TEELs), and a fix to a bug that prevented users from entering heat of vaporization when adding a new chemical to the library. ALOHA is compatible with Microsoft Windows and with Macintosh OS X. CAMEO developers recommend that all ALOHA users download ALOHA from the CAMEO Website.

More information on CAMEO, MARPLOT and ALOHA can be found at the EPA's CAMEO website.



Robert Gardner/Faith Mayer


Last update: 07/20/10