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Project 8,5 - Airborne High icsclution Spectral Analysis Os. Ralph Zirkind
Opy7STIS
To determine the epectral listritution of the irraifance from 4
Megator sur?ire hurt’ atan airborne station
ond compare
{tovil. an
jdenvitsl teagurem 2. Crom a surface stati. ant to lelernin.
fireba*l color temp erature *&
ihe
corresting for steosyheric attenuution
ty an indepentont aeusurenen*,
INST
The epestral Uetriputicon of drratlance is w+ tadnod from a ree
fur quart? ‘leer esertsometer,
The spectrum is samriet in narrow
bands Sy; phetocells in the visitle region and MOS celtic tn the f-frae
Pet,
The et -etrfeal signal fs then reeorind on an Ampex 814 tar- cee
sorter, with a resolution tim
ment is acmomplishel by
rut and cpectral
the aivcret,
of 150 ssee,
The transtiseion measure-
bearing a pel-ei lirht cignal of kmo.nr out-
tistribution fror a fixe} noin? on the groun! towaris
The attenuated beat is recotved by a detecter in the
atroraft and recorded on a Hetlan? recorder,
The jetecrtor sonaists of
two filterel ohotomultipticr tubes curpling te > crett regions, (1)
0927.85 eloror|) ond (2) %,4-1.%S microns,
In adiition, a vaartr
filterel caterimeter, 2? degrece Pel! of whew, Le utditice? to seaciee
th« aprrovimate raddint exposure peceivel at the epectrome ter,
rroorgss
nema
The af-cpaft was located at the intente! posdtfor (22, Feet
absolute, with o horivortal ranc. cf €5,4°° feet tna tafl-on pesiticn)
at T.-
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