Nordsee und Deutsche Bucht 2002
BSH
83
Fig. 3-5 Time series of observed wind speed and direction at lightvessel Deutsche Bucht
(top), significant wave height (swh) and wave direction at grid position lightvessel
German Bight (model data, middle), and swh near Helgoland (Waverider data, bottom).
All data smoothed over 5 measuring cycles applying a median filter 49
Fig. 3-6 Seasonal cycle in 2002 of monthly averaged daily global radiation totals at
Norderney together with intramonthly extremes, 1971-2000 base period monthly means,
and 95%-band (climatology ±1.96 standard deviations). 1 kJcm" 2 is equivalent to a
radiation flux density of 116 Wm" 2 52
Fig. 3-7 Seasonal cycle 2002 of monthly mean SST at Helgoland-Reede together with 1971-
2000 base period monthly means and 95%-band (climatology ±1.96 standard devia
tions). (Source: BAH, BSH.) 53
Fig. 3-8 Pseudo-2D time series of monthly mean SST (°C) since 1873 at Helgoland-Reede.
(Source: BAH, BSH.) 54
Fig. 3-9 Rolling correlations NAO versus Helgoland-Reede SST 55
Fig. 3-10 Seasonal cycle 2002 of monthly mean SSS at Helgoland-Reede together with
monthly extremes, 1971-2000 base period monthly means and 95%-band (climatology
±1.96 standard deviations). (Source: BAH, BSH.) 56
Fig. 3-11 Pseudo-2D time series of monthly mean SSS since 1973 at Helgoland-Reede.
Contour interval: 1, color spacing 0.5. (Source: BAH, BSH.) 57
Fig. 3-12 Temperature stratification (°C) in 2002 at MARNET stations Deutsche Bucht, Ems
and NSB II. Sensor depths: 3, 6, 10, 15, 20, 25, 30, 35 m 59
Fig. 3-13 Nutrient concentrations (phosphate, silicate, nitrate & nitrite in pmol/l) and salinity
(inverted) at MARNET Station Deutsche Bucht. Datings indicate maxima (nutrients) and
minima (salinity), stars maintenance work (black) or reference measurements of RV
Gauß (red) 61
Fig. 3-14 Precipitation anomaly [%] as ratio of August 2002 precipitation total to 1961-1990
base period August mean. (Source: http://gpcc.dwd.de) 64
Fig. 3-15 Annual runoff of Elbe River at Neu-Darchau weir with long-term mean (1971-2000)
and 95%-limits (|i± 1.96c). 1 km 3 /yr is equivalent to 31.7 m 3 /s. Notable departures from
long-term mean (21.64 km 3 /yr) recurred at a frequency of 6-8 years. (Data: WSA-
Lauenburg.) 65
Fig. 3-16 Monthly mean and maximum runoff of Elbe River in 2002 at Neu-Darchau weir
together with 1971-2000 base period monthly means and 95%-band (climatology ±1.96
standard deviations). 1000 m 3 /s are equivalent to 2.592 km 3 /month. In February/March