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North Sea facts

NORTH SEA FACTS
Length north-south 960 km
Width east-west 580 km
Surface area 750.000 km²
Volume 94.000 km³
Average depth 95 m
Maximum depth 700 m (Norway)
Annual river water input 300 km³ directly and 470 km³ via the Baltic Sea
Drainage area 850.000 km² (184 million residents)
Average temperature in winter 6°C
Average temperature in summer 17°C
Salinity 34 à 35 g salt per litre of water
Tide difference 0 to 8 m

Location

The North Sea lies between Norway, Denmark, Germany, the Netherlands, Belgium, France and Great Britain. It links up with the Atlantic Ocean to the north and also the southwest, via the Channel. To the east it links up with the Baltic Sea. The Kattegat is considered an interchange zone between the North Sea and the Baltic Sea. Including estuaries and fjords, the total surface area is approximately 750,000 km² and the total volume 94,000 km³. This represents less than 1/500 of the total water surface of the earth.

Coasts

The coasts of the North Sea vary from mountainous coastlines interspersed by fjords, to cliffs with pebble beaches to low cliffs with valleys and sandy beaches with dunes.

Hydrography

Tides are the dominant hydrodynamic features of the North Sea. They are characterised by a periodic variation in the sea level.


Source: OSPAR Commission 2000. Quality Status Report 2000, RegionII - Greater North Sea. OSPAR Commission, London. 136 + xiii pp. In green: river input area.





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Coastal forecast

TIDES
OSTEND
[TAW]
 
Time
Elev.
 Low
17:20
0.41 m
 High
11:10
4.60 m
 Table Graph North Sea animation Belgian coastal zone animation

Harmonic prediction 
Ostend 1980–2020:
  *to
Enter as YYYY-MM-DD
  
WIND
WESTHINDER
 Speed 3.74 m/s 
 Sector 29° , NNE 
 Table Graph Line plot North Sea animation
  
WAVES
AKKAERT
 Height 0.62 m
 Table Graph North Sea animation
  
CURRENTS
WESTHINDER
 Graph ploar plot Line plot North Sea animation Belgian coastal zone animation
  
TEMPERATURE
OSTEND
 Graph Daily maps
  
SALINITY
OSTEND
 Graph Daily maps
  
TRANSPORT
  Daily maps
  


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