. ..-
,-,
-----
-----
----
.
. . .
.
. . .
.
.
-.
.
. .
-4-
INPUT DATA
Surface
meteorological
observations
the U.S.S. Curtiss
which cruised
fall
the debris
rapidly
surface,
upper
from
were available
from some atolls and from
south of Bikini; however,
cloud to the surface
since the larger
and spend
little
particles
time
near
the
are the
not many surface reports were used. Of far greater importance
.
air wind observations
taken at four sites near Bikini atoll. Other significant
input data consisted
(north=south),
cell sizes of 34 km (east-west)
and 1 km in the vertical,
stabilization
individual
of a flat topography,
time,
source
nuclides,
rates
and particle
for
stem
both
and cap debris
gross
size spectrum
fission
by 17 km
cloud geometries
products
and
due
to gross
at
selected
parameters.
CALCULATIONS
Gross Fission Products
The
products
shown
time-integrated
from detonation
in Fig. 1.
inte=~ated
For
Strauss[6]
Rongelap
for
only
distance
dose
pattern
to evacuation
next
(in rads)
time
of Rogelap
to Ailinginae,
values up to the time p“eople were evacuated
comparison,
are
given
the
and Ailinginae
Utirik
value
in Table
1.
are lower.
total
Note
dose,
that
the
calculations
The code calculations
This variation
variation
wind observations
of
However,
atolls.
estimates.
“tuning’!; also a possible
the
time
The numbers
at odds with earlier
those
external
were
from the atolls of concern)
appears
in wind directions
from
the
U.S.S.
Rongerik,
fission
atolI (5 I hours) are
and Utirik
atolls
are
from those atolls.
estimated
by
agreement
Dunning
is very
for Rongerik
for Rongerik
may be an explanation.
for
are higher, while
a problem
and speeds at late
south
good
and
and Utiri!< are
to be in part
Curtis,
[51
of
times when
of Bikini (some
.-. .