20 
Aus dem Archiv der Deutschen Seewarte. 1908, Nr. 3. 
2p 
Jan. 
Febr. 
März 
April 
Mai 
Juni 
Juli 
Aug. 
Sept. 
Okt, 
Nov. 
Dez. 
Jahr 
1 Norderney 
— 
— 
— 
— 
— 
— 
9.6 
5.6 
4.6 
— 
18S0< Borkum 
— 
— 
— 
— 
— 
— 
— 
— 
— 
9.6 
5.9 
5.0 
— 
' Differenz 
- 
— 
— 
— 
— 
— 
— 
— 
— 
0.0 
+ 0.3 
+ 0.4 
— 
1 Norderney 
- 1.5 
0.7 
3.2 
7.8 
12.2 
15.9 
19.5 
17.0 
15.2 
8.1 
6.9 
3.3 
9.03 
1881 Borkum ' 
-1.5 
0.7 
3.5 
7.7 
12.4 
15.6 
19.6 
17.5 
15.4 
8.2 
7.3 
3.4 
9.15 
l Differenz 
0.0 
0.0 
+ 0.3 
-0.1 
+ 0.2 
-0.3 
+ 0.1 
+ 0.5 
+ 0.2 
+ 0.1 
+ 0.4 
+ 0.1 
+0.12 
[ Norderney 
3.0 
4.3 
8.2 
10.4 
14.6 
16.8 
18.7 
17.4 
16.1 
11.1 
5.2 
1.5 
10.66 
18821 Borkum 
3.7 
4.6 
8.4 
10.6 
14.2 
16.5 
18.7 
16.8 
15.9 
11.1 
5.5 
1.6 
10.64 
' Differenz 
+ 0.1 
+ 0.3 
+ 0.2 
+ 0.2 
0.4 
-0.2 
0.0 
-0.6 
-0.2 
0.0 
+ 0.3 
+ 0.1 
0.02 
1 Norderney 
1.3 
4.6 
2.0 
9.0 
13.2 
16.6 
18.6 
18.2 
16.0 
11.4 
6.7 
4.0 
10.13 
18881 Borkum 
1.0 
4.9 
1.8 
9.1 
13.1 
16.2 
18.1 
17.9 
15.8 
11.4 
7.1 
4.2 
10.10 
1 Differenz 
+ 0.3 
+ 0.3 
-0.2 
+ 0.1 
-0.1 
-0.4 
-0.5 
-0.3 
-0.2 
0.0 
+ 0.4 
+ 0.2 
-0.03 
[ Norderney 
4.7 
5.0 
7.4 
9.4 
13.1 
15.3 
20.3 
20.5 
18.2 
11.6 
5.0 
3.2 
11.14 
18841 Borkum 
4.8 
5.2 
6.9 
9.0 
13.0 
14.4 
19.6 
20.0 
17.8 
11.5 
5.5 
3.4 
10.93 
1 Differenz 
+ 0.1 
+ 0.2 
-0.5 
-0.4 
-0.1 
0.9 
-0.7 
-0.5 
-0.4 
-0.1 
+ 0.5 
+ 0.2 
0.21 
1 Norderney 
-0.9 
4.8 
5.1 
10.7 
11.7 
16.9 
19.7 
16.8 
15.0 
9.7 
3.9 
2.8 
9.68 
1885 Borkum ' 
0.1 
5.1 
4.9 
9.9 
11.3 
15.8 
18.1 
16.0 
14.6 
9.4 
3.9 
2.8 
9.49 
1 Differenz 
+ 1.0 
+ 0.3 
0.2 
-0.8 
-0.4 
-1.1 
1.6 
-0.8 
-0.4 
-0.3 
0.0 
0.0 
-0.19 
| Norderney 
0.9 
-0.6 
2.6 
8.6 
13.1 
16.0 
18.8 
19.4 
17.9 
12.2 
7.8 
2.9 
9.97 
18801 Borkum 
0.8 
-0.1 
2.2 
8.1 
12.6 
14.8 
17.9 
18.5 
17.6 
12.1 
8.0 
2.8 
9.61 
l Differenz 
-0.1 
+ 0.5 
-0.4 
0.5 
-0.5 
1.2 
0.9 
0.9 
0.3 
0.1 
+ 0.2 
0.1 
-0.36 
1 Norderney 
-0.9 
2.5 
3.7 
7.9 
10.7 
16.7 
20.4 
18.5 
15.5 
9.4 
5.5 
2.5 
9.37 
1887 j Borkum 
-0.9 
2.6 
3.7 
7.3 
9.7 
15.2 
18.9 
17.4 
14.7 
9.2 
5.3 
2.7 
8.82 
l Differenz 
0.0 
+ 0.1 
0.0 
0.6 
-1.0 
1.5 
-1.5 
-1.1 
-0.8 
0.2 
-0.2 
+ 0.2 
0.55 
1 Norderney 
0.8 
-0.2 
1.2 
6.2 
12.3 
16.5 
16.6 
17.2 
15.8 
9.8 
5.3 
4.0 
8.80 
1888 < Borkum 
0.8 
-0.7 
0.4 
5.6 
11.5 
15.6 
15.8 
16.4 
15.4 
9.7 
5.5 
4.1 
8.34 
1 Differenz 
0.0 
0.5 
- o.s 
-0.6 
-0.8 
-0.9 
-0.8 
-0.8 
0.4 
-0.1 
+ 0.2 
+ 0.1 
0.46 
1 Norderney 
0.4 
1.1 
3.4 
8.4 
17.8 
20.7 
18.6 
18.1 
15.2 
10.8 
6.2 
1.3 
9.34 
1880| Borkum 
0.4 
0.9 
2.9 
7.8 
17.4 
20.0 
18.0 
17.2 
14.8 
10.7 
6.0 
1.3 
8.95 
i Differenz 
0.0 
0.2 
0.5 
-0.6 
-0.4 
- 0.7 
-0.7 
0.9 
-0.4 
0.1 
-0.2 
0.0 
0.39 
1 Norderney 
3.8 
1.9 
6.6 
7.8 
14.8 
15.8 
17.4 
18.0 
17.0 
(9.6) 
(5.6) 
(4.6) 
10.24 
18901 Borkum 
3.7 
1.6 
6.3 
7.8 
13.8 
14.8 
16.3 
17.6 
16.4 
(9.6) 
(5.9) 
(5.0) 
9.90 
l Differenz 
-0.1 
0.3 
-0.3 
0.0 
-1.0 
-1.0 
-1.1 
-0.4 
-0.6 
(0.0) (+0.3) 
(+0.4) 
0.34 
1 Norderney 
1.22 
2.41 
4.34 
8.62 
13.35 
16.72 
18.86 
18.11 
16.19 
10.37 
5.81 
3.01 
9.92 
Mittel l Borkum ' 
1.35 
2.44 
4.10 
8.29 
12.90 
15.90 
18.10 
17.53 
15.84 
10.29 
6.01 
3.11 
9.66 
1 Differenz 
+ 0.13+0.03 
0.24 
0.33 
0.45 
-0.82 
0.76 
-0.58 
0.35 
-0.08 
+ 0.20 
- 0.10 
-0.26 
8 p 
1 Norderney 
— 
— 
— 
— 
— 
— 
— 
— 
— 
8.9 
4.8 
4.2 
— 
1880 < Borkum 
— 
. 
— 
— 
— 
■ 
— 
— 
— 
8.3 
5.0 
4.5 
. 
l Differenz 
— 
— 
— 
— 
— 
— 
— 
— 
— 
-0.6 
+ 0.2 
+ 0.3 
— 
1 Norderney 
-1.9 
-0.2 
1.5 
5.0 
9.8 
12.8 
17.2 
15.3 
13.1 
6.7 
6.3 
2.6 
7.35 
1881 < Borkum 
- 2.1 
- 0.2 
1.4 
4.8 
9.8 
13.3 
16.8 
14.5 
12.8 
6.8 
6.3 
2.6 
7.23 
l Differenz 
0.2 
0.0 
-0.1 
-0.2 
0.0 
+ 0.5 
-0.4 
-0.8 
0.3 
+ 0.1 
0.0 
0.0 
0.12 
[ Norderney 
3.0 
3.3 
6.5 
7.7 
11.2 
13.5 
16.6 
15.6 
14.1 
9.2 
4.0 
1.0 
8.86 
1882 < Borkum 
3.0 
3.5 
6.3 
7.6 
11.0 
13.6 
15.7 
14.7 
13.8 
9.4 
4.8 
1.4 
8.73 
l Differenz 
0.0 
1 + 0.2 
0.2 
-0.1 
-0.2 
+ 0.1 
-0.9 
- 0.9 
-0.3 
+ 0.2 
+ 0.2 
+ 0.4 
0.13