79-16 Environmental
Unfortunately, this also removes any good data that happens to fall at the same frequency, although
no
rmally
th
is
is bu
t
a sm
all
po
rtion
of th
e
da
ta
. Da
ta
ou
tages
an
d
in
strument
re
corder
fa
ilures
ap
pear
as st
reaks
in th
e
im
age
pa
rallel
wi
th
th
e
sc
anline,
an
d
ca
n
be di
scovered
by co
mparing
th
e
re
spective
re
adings
o
f
t
he
p
ixels
i
n
t
he
s
urrounding
s
canlines
o
f
t
he
i
mage
.
To ac
count
fo
r
th
e
at
mospheric
e
ects
of Ra
yleigh
an
d
ae
rosol
sc
attering,
an es
timate
of th
e
po
rtion
of th
e
sig
nal
th
at
is du
e
to th
e
at
mosphere
is co
mputed
an
d
su
btracted
fr
om
th
e
re
corded
va
lue
. e
re
ectance
of wa
ter
in th
e
ne
ar-IR
re
gion
of th
e
sp
ectrum
sh
ould
be e
ectively
ze
ro,
so th
e
va
lue
to
subtract for the near-IR band corresponds to the reading