aq oe

XRAY DA

Location of Center of Rising Atomic Cloud
from H-hour until H-hour plus 12.5 Minutes

MiMUTES THAY WIND ACTED OW CLOUD aT EACH
5,000 FOOT LAVAL

ae deel

a stele
Glowd Mase show s
mee goved very livtie horlgantally during
the firet three alnutes, It sevaed to be
only alightly affected
the onsterly
elnde ubloh prevailed
25,000 fou,
Therefore, date for the first three ainutes
tere aot been considered La thease cal oulstions, fhe time lotervals given below have
been determined by dividing the surve
shown an the pege

METHOD OF COMPUTLWG LOCATION
OF CENTER OF aTCKIC CLOUD TOP AT Tl IT
ARACHED HIGHSST ALTTTUSE
|
de the atomic cloud was acted upon
by the upper viade during the 12.5 alnutes
that 11 was rising, the top of tha cloud *

inte 5,000 foot segments, 2,

waa Jisplaced sbout 2,7 nsutical alles

along a Yeotor directed from 224" by the *
time that it resohed maximum altitude.
This resulte in an increase ln distanse
between the cloud and bhe theodolite
obeertation stetiane which guat be cop
tidered If the trus altitude of the sloud
la to be determined,

tet

The position of the olouwd hae been
galculated by joining Leguther vectors

which are directed In scaardance with the
upper wind at the 5,000 foot level is
question end which ars propertional in

Length to the thas that the cloud required

4o pase through the altitude interval,

The redii of the elreles are is
neutionl miles, and the individwal veotore
are identified by figures signifying
thousands af feet.

23

30,000

240

35,000
40,000
45,000
50,000
55,000

2a
220
229
230
220

(3.1 - 2.5) © 0.6

30,000

(J.8 - 3.2) = 0.7

4,000

(4.4 - 3.8) = 0.8

W0,000

(5.7 - &.6) © 2.2

63,000

«(7,0 ~ 5.7) © 13

$0,000

(9.1 - 7.0) + 2.1

53,000

{12.5- 9.2) © Ju

Aliiiuds

Oearage

25,000

niet

25,000

LESOTMS OF VECTORS IN MAIRICAL MILES

OPPaN WINDS aT H-HOUR

witiiede

‘eat

om
elther side of the altitude in question,
ahd vending off the intersectians of
plotted aurve all the ties ordinates,
These time Intervals are sonsidared to be
the umber of ainetoe Unat the epper aind#
acted of the gloud at esak 5,000 foet
level.

owe
0.6/o «

censitinteniaabelitinkd

aan

BO"

Length of calculated vector 27 n, miles , direction — from 224°

Meets Bawiice)
WW

eo

0.7/oO « MY

«

0.0/ 2

Be

1.31/60 2

-

1.3/40
2.1/0
Sed/60

.

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