
71-6 Environmental
71.2.1 Instruments for Broadband Solar Radiation
Measurements (Broadband
Rad
iometers)
Instruments that measure broadband solar irradiance are oen called pyranometers or broadband
ra
diometers
. Mo
stly,
th
e
tot
al
ir
radiance
is me
asured
wi
th
py
ranometers;
ho
wever,
th
ere
ar
e
al
so
ve
r-
sions
th
at
ma
y
se
parate
di
rect
an
d
di
use
ir
radiance
(V
alero
et al., 19
89;
Pi
lewskie
an
d
Va
lero,
19
93)
.
Ex
amples
of py
ranometers
wi
dely
us
ed
in ai
rborne
ap
plications
ar
e
th
ose
ma
nufactured
by Ki
pp
&
Zo
nen
(h
ttp://www
.ki
ppzonen
.co
m/)
an
d
Ep
pley
(t
he
Ep
pley
La
boratory,
In
c
., ht
tp://www
.ep
pleylab
.
com/). Here, we describe the pyranometer manufact ...