264 
TABEL VIII. 
Berekening voor platte wolken : k < 1 = 0.25. 
De Bilt. December + Januari : * = 78° 37'. 
p 
W 
W s 
Z 
Som 
40 
45 
0.596 
0.568 
0.912 
0.888 
0.052 
0.094 
96.4 
98.2 
1 — ^1 — m2 sm 2 p 1 + sin p ^ 
cos p 
50 
0.543 
0.875 
0.135 
101.0 
55 
0.518 
0.854 
0.175 
102.9 
r?- y 1 m2 sin 2 p jjs 
cos 
60 
0.492 
0.829 
0.216 
104.5 
65 
0.462 
0.798 
0.263 
106.1 
. k , v 1 — m 2 x 2 -f- kx 
h = ^ In -r? 1 — 
2 1 1 — m 2 x 2 — kx 
70 
0.425 
0.753 
0.323 
107.6 
+ tn bgsin(mx ) 
75 
0.372 
0.683 
0.407 
109.0 
80 
0.290 
0.563 
0.537 
110.0 
. , , v 1 — m 2 x 2 + k 
-hk In r? 
(\-\-k)^\— X 2 
825 
0.230 
0.464 
0.634 
109.8 
85 
0.166 
0.353 
0.736 
108.9 
+ 1 — ^1 — m 2 x 2 
875 
0.086 
0.202 
0.863 
106.5 
m 2 = k 2 — 1 x = sin p 
40 
0.693 
0.912 
0.000 
91.2 
1 — ^l — m 2 sin 2 p 2 C0S * P W 
COS P 
45 
0.647 
0.886 
0.000 
88.6 
50 
0.604 
0.859 
0.037 
89.6 
r? - y 1 - m2 sm 2 ^ w 
COS P 
55 
0.564 
0.829 
0.102 
93.0 
■ , 
60 
0.524 
0.797 
0.164 
96.1 
T , , v 1 — m 2 x 2 -j- kx 
*2 — k In ./ 
M — m 2 x 2 — kx 
65 
0.495 
0.759 
0.229 
98.8 
■ 
70 
0.438 
0.710 
0.302 
101.2 
— v 1 — m 2 x 2 
75 
0.378 
0.639 
0.397 
103.6 
. 4 m 2 — 1 
+ 2m bgsmlmx) 
80 
0.293 
0.525 
0.534 
105.9 
825 
0.235 
0.441 
0.625 
106.6 
m 2 = k 2 — 1 x = sin p 
85 
0.166 
0.331 
0.736 
106.7 
S7 5 
0.086 
0.202 
0.863 
106.5 
' 
