UNIVERSITY OF CALIFORNIA
LOS ALAMOS SCIENTIFIC LABORATORY
(CoNTRACT W-7405-ENG-36)

P.O. Box 1663
LOS ALAMOS, NEW MEXICO
IN REPLY

REFER TO:

ai

H~6-77

Commanding Officer
U.S. Naval Sadiological Defense Laboratory
San Francisco 24, California

Attention:

O827°5

Jr. C. F. Ksanda

arena

Dear Mr. Fsanda:

is considered desirable that operational forecasting for 2aDW
not bee tinited to a sinzle model and rethod. At the sugceestiog
proven in for operational feasibilisty at. the start of :“eDWING.
TSAPCT, we depended considerably on telephone communication an
Model 701 calculations, Experience indicates that at miwetok
colmunication to the mainland cannot be relied unon at critica

of Pr.
During

Ish:

telephone

Teletype communication should be adequate for the use cf one
forecasting based in the Z,I., but we expect to rely mainly on
computers in the forward area, Lacked up by ‘and-calculation m

F

2

dq

As you are doubtless aware, the main requirements for an

method are:

ea
2G

,
Zt showld produce at least one isodose contour with#h

(1)

a

of receipt of a wind forecast.

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(2)

be
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|

a6

(3)

.

.

Jopesationa
an hour
BRUNO FRE

.

=rrers inherent in the method shculd be less than t!

from other sources (e.g. wind and yield forecesting

tet nie

arisin

rrors).

'

It is very desirable that the method should not recufire more
tian one zen in the forward area,

The plens for fallout prediction at 2aD.T'S are stili srl
have a suitable methed, and would like to participate, I would

metter further.
RG 181 AGENCY/NBQMCTEUnity to discuss the

Very sincerely yours,
“yo.
er

Location___BRUNO
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White, Leader

pFEST COPW AVAILABLE

nediological Fhysics Croup
Health Division
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