scholarly journals SAND TRANSPORT UNDER THE ACTION OF WIND

1980 ◽  
Vol 1 (17) ◽  
pp. 94
Author(s):  
Ulrich Zanke
Keyword(s):  
Wind Speed ◽  
Transport Equation ◽  
North Sea ◽  
Suspended Load ◽  
Sand Transport ◽  
Bed Load ◽  
Field Investigations ◽  
Sea Coast ◽  
North Sea Coast

Field investigations on sand-transport by wind were carried out at German North-Sea coast. A special trap was constructed, which allows to measure bed load and suspended load separated. In addition wind speed was measured up to 10 m over the bottom. The results of the field investigations were used to calibrate a transport-equation for sandtransport by wind.

What can idealized storm surge simulations tell us about worst case scenarios?

2021 ◽  
Author(s):  
Elin Andrée ◽  
Jian Su ◽  
Martin Drews ◽  
Morten Andreas Dahl Larsen ◽  
Asger Bendix Hansen ◽  
...  
Keyword(s):  
Wind Speed ◽  
Sea Level ◽  
North Sea ◽  
Wind Direction ◽  
Water Levels ◽  
Sea Levels ◽  
The North ◽  
The North Sea ◽  
Sea Coast ◽  
North Sea Coast

<p>The potential impacts of extreme sea level events are becoming more apparent to the public and policy makers alike. As the magnitude of these events are expected to increase due to climate change, and increased coastal urbanization results in ever increasing stakes in the coastal zones, the need for risk assessments is growing too.</p><p>The physical conditions that generate extreme sea levels are highly dependent on site specific conditions, such as bathymetry, tidal regime, wind fetch and the shape of the coastline. For a low-lying country like Denmark, which consists of a peninsula and islands that partition off the semi-enclosed Baltic Sea from the North Sea, a better understanding of how the local sea level responds to wind forcing is urgently called for.</p><p>We here present a map for Denmark that shows the most efficient wind directions for generating extreme sea levels, for a total of 70 locations distributed all over the country’s coastlines. The maps are produced by conducting simulations with a high resolution, 3D-ocean model, which is used for operational storm surge modelling at the Danish Meteorological Institute. We force the model with idealized wind fields that maintain a fixed wind speed and wind direction over the entire model domain. Simulations are conducted for one wind speed and one wind direction at a time, generating ensembles of a set of wind directions for a fixed wind speed, as well as a set of wind speeds for a fixed wind direction, respectively.</p><p>For each wind direction, we find that the maximum water level at a given location increases linearly with the wind speed, and the slope values show clear spatial patterns, for example distinguishing the Danish southern North Sea coast from the central or northern North Sea Coast. The slope values are highest along the southwestern North Sea coast, where the passage of North Atlantic low pressure systems over the shallow North Sea, as well as the large tidal range, result in a much larger range of variability than in the more sheltered Inner Danish Waters. However, in our simulations the large fetch of the Baltic Sea, in combination with the funneling effect of the Danish Straits, result in almost as high water levels as along the North Sea coast.</p><p>Although the wind forcing is completely synthetic with no spatial and temporal structure of a real storm, this idealized approach allows us to systematically investigate the sea level response at the boundaries of what is physically plausible. We evaluate the results from these simulations by comparison to peak water levels from a 58 year long, high resolution ocean hindcast, with promising agreement.</p>

Analysis of wind speed observations on the North Sea coast

1998 ◽  
Vol 73 (2) ◽  
pp. 125-144 ◽  
Author(s):  
J.P. Coelingh ◽  
A.J.M. van Wijk ◽  
A.A.M. Holtslag
Keyword(s):  
Wind Speed ◽  
North Sea ◽  
The North ◽  
The North Sea ◽  
Sea Coast ◽  
North Sea Coast

List of Publications Recording the Results of Researches carried out under the Auspices of the Marine Biological Association of the United Kingdom in their Laboratory at Plymouth or on the North Sea Coast from 1886–1900

1900 ◽  
Vol 6 (1) ◽  
pp. 115-135
Keyword(s):  
United Kingdom ◽  
North Sea ◽  
Biological Association ◽  
The North ◽  
Marine Biological Association ◽  
The United Kingdom ◽  
The North Sea ◽  
Different Parts ◽  
Sea Coast ◽  
North Sea Coast

The following list has been classified, so far as practicable, according to subjects, in order that it may be useful for purposes of reference. The list does not include publications recording the results of observations made on material supplied by the Association to workers in different parts of the country, of which a considerable amount is sent out each year.

scholarly journals HIGH-WATER PROBLEMS ON THE DANISH NORTH SEA COAST

2011 ◽  
Vol 1 (6) ◽  
pp. 6
Author(s):  
C. Ringe-Jorgensen
Keyword(s):  
North Sea ◽  
High Water ◽  
Meteorological Conditions ◽  
Dutch Coast ◽  
Water Problems ◽  
Sea Coast ◽  
North Sea Coast ◽  
Made In ◽  
Frequency Curves

With reference to the use of high-water frequency curves, which have been suggested by Wemelsfelder as an aid to fix the maximum flooding level, an attempt will be made in the following to estimate how far certain special geographical and meteorological conditions may be expected to influence the shape of the frequency curves for different localities. The investigation concerns a particular point on the Danish North Sea coast compared with the Dutch coast, but its principles may possibly be of interest in a wider sense.

Concentrations and metabolism of PCBs in eggs of waterbirds on the German North Sea Coast

1994 ◽  
Vol 52 (2) ◽  
pp. 220-225 ◽  
Author(s):  
E. Denker ◽  
P. H. Becker ◽  
M. Beyerbach ◽  
A. Büthe ◽  
W. A. Heidmann ◽  
...  
Keyword(s):  
North Sea ◽  
Sea Coast ◽  
North Sea Coast
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