63 
F. Zorell: Beiträge zur Hydrographie der Deutschen Bucht. 
Tabelle Va—1 Salzgehalts-Monatsmittel und monatliche — Maxima und Minima 
des Oberflächenwassers für die Jahre 1923—1932 bei 
Tabelle Va Feuerschiff Borkumriff 
1923 
1924 
1925 
1926 
1927 
1928 
1929 
1930 
1931 
1932 
11923—1932 
Maximum 
34.47 
33.15 
33.17 
34 20 
33.68 
33.40 
34.18 
32.83 
33.12 
Januar: 
Mittel 
. 
33.72 
32.61 
32.37 
33.10 
32.36 
33.01 
33.60 
32.04 
32.42 
32.80 
Minimum 
—. 
32.91 
31.52 
30.26 
32.29 
31.47 
31.67 
32.63 
31.33 
31.65 
Maximum 
33.71 
33.33 
32.18 
33.82 
34.43 
33.40 
34.05 
34.56 
32.79 
Februar: 
Mittel 
. 
32.85 
32.91 
31.64 
32.88 
33.62 
32.88 
33.13 
33.15 
3201 
32 78 
Minimum 
. 
32.52 
32.52 
30.97 
31.17 
32.75 
32.52 
32.09 
32.56 
30.65 
Maximum 
32.86 
33.75 
33.96 
34.87 
33.30 
33.57 
32.72 
33.69 
33.39 
33.30 
März: 
Mittel 
32.42 
32.71 
33.55 
33.75 
32.52 
33.15 
32.52 
33.42 
32.89 
32.77 
32.97 
Minimum 
31.73 
32.52 
32.75 
32.32 
32.00 
3268 
32.23 
33.10 
31.85 
32.47 
Maximum 
32.94 
33.ii 8 
34.13 
34.29 
33.57 
32.84 
32.83 
33.66 
33.12 
32.90 
April: 
Mittel 
32.70 
32.99 
33.67 
33.57 
32.35 
32.59 
32.66 
33.34 
32.73 
32.60 
32.92 
Minimum 
32.29 
32.49 
33.21 
32.72 
31.35 
32.32 
32.48 
33.13 
32.32 
32.41 
Maximum 
34.17 
32.95 
33.69 
33.15 
33.55 
32.92 
32.90 
33.75 
32.77 
33.35 
Mai: 
Mittel 
33.41 
32.20 
33.16 
32.96 
32.93 
32.76 
32.78 
33.50 
32.00 
32.73 
32.84 
Minimum 
32.69 
29.90* 
32.30 
32.75 
32.07 
32.59 
32.65 
33.19 
31.53 
31.95 
Maximum 
34.06 
33.81 
33.06 
33.08 
33.58 
33.60 
33.15 
34.22 
32.86 
32.45 
Juni: 
Mittel 
33.70 
32.48 
32.59 
32.76 
33.30 
33.19 
32.87 
33.74 
31.94 
32.27 
32.88 
Minimum 
33.02 
31.56 
31.27 
32.47 
32.86 
32.81 
32.06 
33.47 
31.29 
32.14 
Maximum 
34.18 
33.01 
33.73 
33.13 
33.40 
34.27 
33.17 
33.48 
33.40 
33.26 
Juli: 
Mittel 
33.54 
32.32 
33.01 
3262 
3237 
33.19 
32.95 
33.00 
32.50 
32.73 
32 82 
Minimum 
32.91 
31.28 
32.45 
32.23 
31.13 
32.09 
32.75 
32.48 
31.58 
32.39 
Maximum 
34.67 
33.73 
33.82 
33.42 
33.30 
34.00 
33.30 
33.86 
33.68 
32.56 
August: 
Mittel 
33.39 
33.23 
33.38 
32.60 
32.47 
33.73 
32.96 
32.57 
33.18 
32.05 
32.96 
Minimum 
30.70 
32.13 
32.95 
31.60 
31.58 
33.21 
32.57 
31.52 
32.57 
31.53 
Maximum 
35.23t 
33.82 
34.20 
32.84 
34.27 
33.69 
33.13 
33.75 
33.69 
33.80 
September: 
Mittel 
34.70 
32.85 
33.72 
32.24 
33.13 
33.47 
32.78 
33.10 
33.41 
33.33 
33.27 
Minimum 
34.19 
31.44 
33.15 
31.64 
31.64 
33.03 
32.61 
32.01 
33.12 
32.73 
Maximum 
34.35 
33.44 
33.75 
34.58 
34.43 
33.84 
34.31 
33.87 
33.53 
34.04 
Oktober: 
Mittel 
33.57 
32.78 
33.36 
33.65 
33.57 
33.60 
33.64 
33.07 
33.33 
33.56 
33 41 
Minimum 
32.75 
32.10 
32.77 
32.57 
31.82 
33.46 
33.03 
31.71 
33.10 
32.81 
Maximum 
34.31 
33.21 
33.33 
34.94 
34.74 
34.88 
34.23 
34.22 
33.22 
33.86 
November: 
Mittel 
34.13 
33.01 
32.90 
33.11 
33.51 
33.94 
33.87 
33.31 
32.72 
33.24 
33.37 
Minimum 
3391 
32.79 
32.45 
30.91 
32.61 
33.03 
33.44 
31.71 
31.40 
32.52 
Maximutn 
34.44 
32.50 
33.55 
34.70 
33.69 
34.74 
34.52 
33.16 
33.30 
34.31 
Dezember: 
Mittel 
33.79 
31.01 
33.03 
33.09 
32.89 
34.18 
34.22 
31.75 
32.57 
33.86 
33.10 
Minimum 
33.16 
31.15 
32.68 
32.16 
32.48 
32.79 
33.37 
30.79 
31.46 
32.64 
Tabelle Vb 
Feuerschiff Norderney 
Maximum 
32.75 
33.97 
32.59 
31.87 
32.30 
33.84 
33.22 
32.38 
31.84 
32.01 
Januar: 
Mittel 
32.02 
33.05 
32.13 
31.68 
31.92 
33.11 
32.99 
31.99 
31.26 
31.85 
32 20 
Minimum 
30.98 
32.58 
31.62 
31.38 
31.49 
32.05 
32.61 
31.69 
30.88 
31.66 
Maximum 
32.75 
33.90 
32.77 
33.13 
32.36 
32.18 
33.19 
33.66 
32.47 
32.52 
Februar: 
Mittel 
32.41 
32.93 
32.26 
31.65 
32.00 
31.77 
32.79 
33.08 
31.94 
32.22 
32.31 
Minimum 
32.09 
32.59 
31.89 
30.97 
31.31 
31.40 
32.14 
32.38 
31.35 
81.91 
Maximum 
33.44 
33.78 
32.70 
31.85 
32.47 
33.31 
33.10 
33.75 
32.45 
32.64 
März: 
Mittel 
32.75 
32.78 
32.39 
31.45 
31.90 
32.52 
32.94 
33.24 
32.10 
32.55 
32.56 
Minimum 
33.16 
32.57 
31.98 
31.04 
31.22 
31.65 
32.77 
33.10 
31.74 
32.43 
Maximum 
33.42 
33.95 
32.81 
32.97 
32.29 
33.30 
33.06 
33 40 
32.79 
32.44 
April: 
Mittel 
33.02 
33.06 
32.46 
32.55 
31.91 
32.90 
32.90 
33.20 
32 52 
32.19 
32.67 
Minimum 
32.76 
32.44 
31.98 
31.67 
31.62 
32.34 
32.72 
32.94 
32.22 
31.72 
Maximum 
32.73 
32.49 
33.37 
33.64 
32.14 
33.39 
32.94 
33.40 
32.52 
32.46 
Mai: 
Mittel 
32.35 
32.11 
33.09 
33.18 
30.93 
33.10 
32.67 
33.10 
32.27 
32.10 
32.49 
Minimum 
31.42 
31.56 
32.92 
32.99 
29.02* 
32.86 
32.36 
32.59 
31.49 
31.48 
Maximum 
32.78 
32.21 
32.92 
33.12 
32.84 
33.04 
32.79 
33 68 
32.39 
32.60 
Juni: 
Mittel 
32.24 
31.68 
32.75 
32.79 
31.30 
32.66 
32.60 
33.27 
32.11 
32.27 
32.47 
Minimum 
31.12 
31.51 
32.57 
32.48 
30.41 
32.32 
32.29 
32.92 
31.76 
31.55 
Maximum 
33.42 
31.98 
32.83 
32.95 
32.94 
32.88 
32.74 
33.37 
3238 
32.35 
Juli: 
Mittel 
32.28 
31.84 
32.66 
3258 
32.08 
32.75 
32.50 
33.05 
31.85 
32.15 
32.37 
Minimum 
31.46 
31.63 
32.32 
30.14 
29.23 
32.54 
31.62 
32.59 
31.55 
31.81 
Maximum 
33.28 
32.17 
32.95 
32.45 
32.45 
33.33 
32.86 
32.66 
32.20 
32.66 
August: 
Mittel 
33.04 
31.87 
32.58 
31.66 
32.07 
32 71 
32.72 
32 33 
31.98 
32.34 
32.33 
Minimum 
32.78 
31.58 
31.20 
29.88 
31.67 
32.56 
32.61 
32.16 
31.82 
32.05 
Maximum 
33.98 
32.64 
33.22 
31.94 
32.74 
33.33 
32.92 
32.47 
32.43 
32.51 
September: 
Mittel 
33.28 
32.21 
32.93 
31.52 
32.17 
32.94 
32.86 
32.23 
31.71 
32.24 
32.41 
Minimum 
32.71 
31.70 
32.61 
30.77 
31.89 
32.56 
32.77 
32.01 
29.61 
3201 
Maximum 
34.01 
32.74 
33.31 
32.61 
32.48 
33.40 
33.01 
32.34 
32.15 
33.24 
Oktober: 
Mittel 
33 22 
32.24 
32.65 
31.84 
31.84 
32.85 
32.68 
32.14 
31.33 
32.53 
32.33 
Minimum 
32.69 
31.85 
31.73 
31.40 
29.97 
32.27 
32.30 
31.96 
29.52 
32.16 
Maximum 
33.95 
32.10 
32.94 
32.10 
33.06 
33.80 
33.46 
32.46 
31.80 
32.63 
November: 
Mittel 
3346 
31.84 
32.69 
31.50 
32.63 
32.92 
32.75 
32.03 
31.22 
32.34 
32.34 
Minimum 
32.71 
31.47 
32.00 
31.20 
31.73 
32.45 
32.30 
31.13 
30.46 
31.91 
Maximum 
32.71 
32.68 
32.45 
32.45 
33.96 
34.04 
33.28 
31.85 
32.24 
3281 
Dezember: 
Mittel 
32.63 
31.59 
32.09 
32.15 
33.35 
33.14 
32.62 
31.46 
31.93 
32.36 
32 33 
Minimum 
32.57 
30.21 
31.69 
31.51 
32.50 
32.45 
32.07 
30.80 
31.35 
31.70