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µ
0
)
|
µ
0
)
g
] upon solar zenith angle
µ
0
;The
points
Fig. 6.3.
Dependence of the ratio of
K
2
(
[
K
0
(
indicate the calculated values; the
solid line
is the linear approximation
µ
0
)
|
µ
0
)uponthevalueof
g
for different
µ
0
Fig. 6.4.
Dependence of the ratio of
K
2
(
K
0
(
The analysis of the two-moment observation of the irradiances (two values of
solar zenith angle) indicates that the dependence of difference
K
2
(
µ
1
)
|
K
0
(
µ
1
)−
µ
2
) upon parameter
g
is the linear one as is shown in Fig. 6.3 for
different zenith angles (see also Fig. 6.4). Then parameter
g
may be empirically
expressed as follows:
µ
2
)
|
K
2
(
K
0
(
K
2
(
.
µ
1
)
µ
2
)
K
0
(
1
µ
1
)
−
K
2
(
=
g
(6.34)
µ
1
−
µ
2
)
µ
2
)
5.57(
K
0
(
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