4.
Select
SetUp
>
Atmospheric
>
SAM
Station
to
display
a
series
of
dialog
ue
boxes
that
require
user observations or assumptions.
NOTE:
Relative humidity is not captured automatically by the
ALOHA
model but may be
entered manually using data from the WEATHERPAK M display.
5. (Optional) To confirm that WEATHERPAK M data is being delivered to
ALOHA
, go to SAM
Options > Processed Data and the Processed SAM Data window will display the data
delivered to
ALOHA
.
NOTE:
The user gets a warning message in both the Text Summary and Processed SAM Data
windows if the WEATHERPAK M has been collecting data for less than five minutes.
6.
ALOHA
requires
the
SAM
station
to
be
operating
for
five
minutes
before
selecting
the
source
of
release
(tank,
pipe,
direct,
etc.).
Go
to
SetUp
>
Source
and
select
the
leak
source
such
as
tank.
A
series
of
dialog
ue
boxes
will
appear
requiring
user
observations
or
assumptions.
7.
Select
Display
>
Threat
Zone
and
the
Level
of
Concern
window
will
display
the
default
ERPG
ranges.
Select
OK
to
show
the
plume
footprint.
Displaying
the
footprint
in
ALOHA
is
essential
before
the
plume
can
be
overlaid
on
a
MARPLOT®
or
other
street
map.
WEATHERPAK M
25
