|
/
couple of cases) by hand clinometer, and the m. taken by Air Weather Service
personnel by theodolite.
These two sets checked very well in all cases except
Charlie cloud. On the graph, the average of the tro is indicated by the circled
dot, with tne outriggers shoving the values themselves.
de
Cperation Three surface vessois and three aircraft vere
engaged in making cloud rise and height measuremcnis of like cloude Of these, one
vesse! falled.to make any height measurements until H # 2) min., and one airplane rad
only one measuretuent, at upproxintely H + 40 sec, before H*+5 ming It is not
believed that timing was very accurate on this measurement s0 it was discarded.
The cther measurements shored the cloud te have :=:reached maxircum altituce et 3 minutes so in addition to the 3 minute everige an everage wes. obtained using
earlfer measurenentse Cince there is reason to Lelieve the race to decrease in
the stratosphere (abuve 5&COU ft on Make cay) the second average \.as taken of
ohsexvations bejow that height.
on the grophe
The twe averages are shovm as herizontal lines
:
(1) Three minute heights:
U.S.S Curtiss
100,500 fte
U.S.SeRendova
Aireraft No. 1 (De. Urry)
Aiseraft Now 2 (Col. Fee)
Average
(2)
117,0G0 fte
111,C00 <t.
AE7,i00 ite
114,000 ft. in
Smine
_
Extrepelatiion ef tropcsphere rates:
U.SeSe Curtiss
46,600 ft. at l ming
139,800 ft/S
Aircraft No. 1
58,200 ft. at He mine
116,400 £4/2
U.S.S. Renduva
Ne early meusurenents
Airereit Now 2
No early measurements
Average
128,100 ft/2
Three surface vessels and two aircraft made measurements of the King clov
and all data are on hand except that from one surface vessel. ‘the three rinute
heights are as zscllowss
UsSeSe Oak 1411
5E,300
UsSeS. Rencove
Aircraft No. 1 (ir.Singlevich)
Aircraft Noe % (Col, horris)
Averege
56,100
56,300
53,000
209400
(Douktful)
The average is plotted on the graph.
4.
Considerable improvement in this relationship might well result from more
accurate determination of the rate of rise and in particular of the maximm rate,
and from develepment of a correction factor fer variations in the ambient <ir
lapse rete of temperature.
Pe We ALLER
f~
\
le
—“~
.
}
to,
aN Loe
1s Atchmt
v
Chart
-
a
5
LC
|