E-MAPS
Plume ModelingE-MAPS uses the EPA's ALOHA model to provide users the ability to
simulate plume models. Once a plume model has been created, its foot print is
displayed on the map as an Event. The user can then use the plume model in order to
perform other analysis such as population impact assessment or evacuation planning.
Program purpose
ALOHA (Areal Locations of Hazardous Atmospheres) is a
computer program designed especially for use by people responding to chemical accidents,as
well as for emergency planning and training. ALOHA can predict the rates at which
chemical vapors may escape into the atmosphere from broken gas pipes,leaking tanks,and
evaporating puddles. It can then predict how a hazardous gas cloud might disperse in
the atmosphere after an accidental chemical release.
ALOHA runs quickly on small computers that are easily
transportable and affordable for most people. It is designed to be easy to use so
that you can operate it successfully during high-pressure situations. Its chemical
library contains information about the physical properties of about 1,000 common hazardous
chemicals. Its computations represent a compromise between accuracy and speed:it has
been designed to produce good results quickly enough to be of use to responders. ALOHA
is designed to minimize operator error. It checks information that you enter and
warns you when you make a mistake. ALOHA s online help offers you quick access
to explanations of ALOHA s features and computations,as well as background
information to help you interpret its output. |