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David M, Stearns, Group Leader, D-7
407613
November
20, 1952
Thonas N, White, Group Leader, B~6
PBR DTD
INFORMATION REQUESTED IN MEMO RICHARD G. ELLIOTT TO NORRIS FE, MF
10/30/52. SUBJ: "ACTION PLANNED IN REGARD TO PUBLIC EDUCATION OpNOERNDO
CONTINENTAL TEST FALLOUT®
B-6
In eccordance with our telephone conversation this morning I es fprwarding
to you attached the material which Mr. Willism Johnson wrote up on this
subject during my absence lest week.
in envelope containing
and charte which he collected is also attached.
same photo-
The folleving are
my coments on his write-up listed according to peragreph mmberg
1.
To this peragreph I would add a statement that our experience
has shown that there is no significant fallout
bombs at the Nevada Proving Ground. The
blem from air
burst
of air
traffic is
necessary, however, following air bursts, and in addition
td the
cbvious meteorological factors the problem of the height to which
the main body of the cloud will rise, as depending on expected yield,
on
can
4)
Zz
4
general broadoast through the 0,A.a. facilities of a public
fwarning
This circle is called the warning circle.
ito be
requesting anyone who proposes to fly anywhere vithin a spedified
circle during specified hours to inquire of C.A.A. for a safle routing.
The sone that is
Closed within this warning circle is not made public. This
is
given to the C.A.A. Center which airmen are asked to contact, and
x
ff
when en inguiry is made, the
ii:
enti
2. In the case of air bursts considerations of vind speed and direotion ere not very important. The problem of reinout is verj
tant for both air bursts and tower shots.
Here again the paediction
of cloud height ia very importent since if it is certain that the
height will be well above that of any clouds from vhich preqipitation
might occour, the shot may be fired without danger ef rainouf.
7. The most pertinent data on this subject (from the Snapper test)
are not available at Los Alamos,
AFSWP Headquarters {n Washington.
They are probebly in the
In very rough outline
th
Bands
of
;
(
wtA tn
Folder «
(F
Collection // -
Location
rye
feeb,
a
that,—
/ fee
COMMISSION
RG
The following additional explanation is offered concerning the enclosed air space closure chart. In advence of each shot thare is a
a
326 US ATOMIC ENERGY
Pale,
7
has to be given special consideration. Considerable experiqnoe
this subject has been obtained, and predictions on
¢ cloud hefght
be made with considerable saccuracy.
all results of tower shot experience may be presented es follows:
a
ZEST COPY AVAILABLE
\°