List of Figures 
210 
Nordseezustand 2004 
Fig. 3-6: Frequency and duration of main circulation types 70 
Fig. 3-7: Distribution of daily circulation patterns on weather types in 2004. Narrow columns 
give expected frequencies for independence 71 
Fig. 3-8: Same as Fig. 3-7, except for 2003 72 
Fig. 3-9: Seasonal geographical distributions of wave height, windsea and swell in 2004; 
JFM = January, February, March etc. Figures stand for stations >Brent<(l), >Ekofisk< (2), >Euro< 
(3), >NSB-II< (4), >Helgoland< (5), and>UFS DB< (6) 75 
Fig. 3-10: Wave height, windsea and swell during the gales >Uschi< (Fig. 2-3, p. 36) and >Pia< 
(Table 2-1, p. 39) 76 
Fig. 3-11: Scatter plot of simulated versus observed wave height and direction at Station NSB-II. 
For additional explanations cf. Fig. 3-12 77 
Fig. 3-12: Scatter plot of simulated versus observed waveheight and windspeed at Ekofisk and 
Flelgoland. The lines parallel to the regression line have vertical distances of ±1.96 standard 
errors of estimate from it, such that 95 % of the sample points should be included between 
them. For supplementary statistics cf. Table 3-3 78 
Fig. 3-13: Seasonal percent frequency distributions of wind speed as well as wave height and di 
rection at position >UFS DB< in 2004. Note log 2 -scaling of wave height. Model data courtesy 
DWD. 82 
Fig. 3-14: Same as Fig. 3-13, except for position >Ekofisk< 84 
Fig. 3-15: Fligh-water levels at Cuxhaven in 2003 (rel. to ordnance datum) together with 1971 - 
2000 base period monthly means and 95%-band as well as intramonthly 90%-limits 88 
Fig. 3-16: Low-water levels at Cuxhaven in 2004 (rel. to ordnance datum) together with 1971 - 
2000 base period monthly means and 95%-band as well as intramonthly 90%-limits 89 
Fig. 3-17: Monthly mean low-water levels (cm) at Cuxhaven with anomalies and percentiles 
(%). Low-pass filter width 3 months. Color-steps for percentiles: 1, 5, 10, 25, 50, 75, 90, 95, 
99% 90 
Fig. 3-18: Monthly SSTanomalies in 2004 as departures from the 1971 - 1993 climatology. Con 
tour interval is 0.5 K. 93 
Fig. 3-19: Seasonal cycle of areal mean weekly SST of the North Sea from December 2003 
through November 2004 and ensemble of corresponding cycles since 1968. Size of monthly 
climate bullets (radius) gives interannual standard deviation for base period 1971- 1993... 
94 
Fig. 3-20: Seasonal cycle 2004 of monthly mean SST at Flelgoland Reede together with 1971 - 
2000 base period monthly means and 95%-band (climatology ± 1.96 standard deviations). 
94 
Fig. 3-21: Ranked annual mean North Sea SST. 95 
Fig. 3-22: Sketch of annual temperature swing (mean and seasonal extremes) in continental 
and maritime climates (CON & MAR) as well as in cool and warm mishmash-climates (MMC/ 
cold-regime & MMW/ warm-regime) 96 
Fig. 3-23: Classified seasonal SLR distributions (hPa). Left: 1978- 1987, middle: 1991 -2000, 
right: middle minus left; 1 = Winter = January, February, March etc. 97 
Fig. 3-24: Temperature stratification (°C) in summer 2004 (RV Gauß, Reise #425) 99 
Fig. 3-25: Summery temperature stratification (°C) along 56 °N for years 1998 through 2004. .. 
100 
Fig. 3-26: Temperature stratification (°C) in 2004 at MARNET stations >Deutsche BuchU, >Ems< 
and >NSB Ik Sensor depths: 3,6, 10,15,20,25,30,35 m 101