=e Fé.
ee re
5. Summary of Important Dimensions and Observations. MIKE and KING
‘Considerable controversy has arisen concerning the phenomena observed during *
both of these high yield shots. All observations have an inherent weakness: the object
observed was much too large to permit measurement from finite distances. For Instance;*
the elevation angle on the MIKE canopy exceeded 90° within seven minutes, All conclusions, therefore, have a strong subjective element which cannot be eliminated. The
following dimensions have been atrived at by discussion between experienced observers
present during both detonations and verified to a reasonable extent by photo-inferpreta-
Xx
tion. In the case.of MIKE. the high altitude reached by the plume is verified to some
extent by post-sunset observations of the cloud in the stratosphere. This same obser-
|\
|” ‘
vation also appears to establish that the mushroom didpenetrate the stratosphere
4ip?
any finite extent.
i?
a.
~
Size of Cloud at Maximum Development-
KING -
MIKE.
Diameter of Canopy
75 miles
35 miles
Diameter .of Stem. near base
10.miles
3 wiles
Top of Canopy
60000 ft
60,000 ft
< 40.000 f
< 40.000 fr
Base of Canopy
,
Top of Plume
Diameter of Plume
730. 000 ft (?)
no evidence
4 miles (7)
no evidence
b. Dimension of Circulation Diameter in Upper Troposphere at Maximum Development
c-
MIKE.
80 miles
KING.
40 miles
Evidence for Vortex Ring Circulation in Upper: Troposphere
(See photographs)
d.
Evidence for Altostratus Formation in Vicinity of Stem.
(See photographs)
e.
Evidence for Cumulus and Shower Formation
Numerous eyewitness accounts from surface and airborne obse’vers, numerous
photographs.
{f.
Evidence for Extreme Tubulence in Canopy:
Numerous observations of mammato-cumulus. persisting in the canopy for
at least thirty minutes after formatson.
g.
Evidence fo: Secondary Nature of Stem
(See photographs)
°