OPERATION HARDTACK I -
PPG Time
Fig
GMT
TATE:
18 Aug 1908
18 Aur 1958
TIME:
1600
O00
Sponsor:
SITE:
UCRL - DOD
FPG - Eniwetok -
Yvonne
12° 33'
162° 21'
#15"
el"
Site elevation:
HEIGHT OF BURST:
oN
kB
Sea level
1.5 ft
TYPE OF BURST AND PLACEMETIT:
surface burst trom platform
i
over Nave soil
CLOUD TOP HEIGHT:
5,400 ft MS
CLOUD BOTTOM HSTGHT:
4,300 ft MSL
REMARKS:
~The dose-rate contours were obtained by ground survey readings made by
scientific projects.
Actual decay measurements were used to correct
the dose-rate readings to H+tl hour.
The portion of the pattern on the
island is reliable.
That portion which is over water is less reliable
because it was not based upon free-field dose-rate readings but upon
calculations made from readings taken on rive barges and from samples
collected in sticky pans mounted on 87 buoys.
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