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July
29,
1953
of installations, as occurred at both Guam ani Oahu during IVY, it
is desirable that these organizations disclose to us the locations
of their stations and cooperate to the extent of reporting their
routine observations of gamna background to {ackForceHeadquarters.)
ee
Apart from the inherent value of oontimously recorded data per se,
ground mnitoring will increase the efficiency of the aerial monitoring procedures by eliminating negative flights. By their geographical
distribution, the data from the stations will provide an indication of
the island groups which have been affected by fallout and the aerial
monitoring flights can be scheduled accordingly,
~
AERIAL MCNITO}INO
The basic flight patterns adapted for IVY are unchanged, However,
based on the IVY experience, the following operating changes will be
mdes
BEST CUPY AVAILABLE
1. The radiation measurenents will be made by the aircraft crevs
rather than by NYOO representatives, This change is justified by the .
relative ease of moasurements demonstrated during IVY,
The aerial
scintillation instruments will be assigned to the squadrons at Guan,
Knejalein and Hewaii, Members of the squadron who will be directly
concerned with the use of these instruments will be instructed in their
use in advance of CASTLE. NYOO will have provisions at either Kwajalein
or E qetok for the repair of defective instruzents,.
2.
Monitoring flights will be scheduled according to the
findings of the ground monitoring installations described above,
Following any given detonation, certain of the prearranged flight
patterns may be eliminated if data frou the ground installations confira
meteorological predictions thet fallout in a given area is unlikely,
PLAC_LM2NT OF GikAED PAPER ON NAVAL VooSsLe IN Tie s ALI VIC
The IVY experience indicates the possibility that majeur fallouts are
going umetected because they occur on the open sea, The relatively
enall total area of the Pacific islands in relation to the area of open
water makes it difficult to understand comletely the fallout patterns
from the detonation of superbombs,
The requirenents of GABI.IEL and the
necd to predict fallout patterns for detonations over land masses, makes
it desirable that the limited data from the islands be augmented by whatever information that can be collected by ships at sea, CINCPACFLT has
ak wwe
i
ew
were
Department of Energy
ee weeee meen eee Of a
AFOAT-1 operate continuous monitoring equi;ment at a number of
Locations in the Pacific area.
_
In order to avoid unnecessary duplication
Department of Energy
Historian’s Office
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