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Project 23.2 - Cloud Photography - H. F. Grier
D. Berkowitz

Approximete measurements on 7Omm cloud camera film indicates the
following cloud dimensions at statilization, roughly six minutes after zero
tine:

Height above cloud horizon

& ,000 feet

Top of clouds

10,000 feet

Cloud error

12,000 feet

Height of cloud

82,000 feet

Dianeter

100,000 feet

The "cloud error” is due to measuring from the cloud horizon rether than
from where the stem pops out of the clouds.

Mensurenents were made on film #36442 exposed in cloud camera #6 in
elreraft #7135.

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