Die Küste, 81 (2014), 369-392 
373 
3 Data base 
The database for all investigations can be characterized using die data from die seabed 
which is needed to describe physical sediment properties (e.g., grain size distribution, po 
rosity, ...), bathymetry over several years and bed forms. Different datasets were there 
fore compiled and assessed in AufMod: 
1. sedimentological data, 
2. bathymetry data, 
3. hydrodynamic and meteorological data and 
4. model results after model set-up, running and interpolation as well as interpretation. 
3.1 Sediment data 
The following parameters were relevant for morphodynamic modelling: 
1. grain size analyses of surface sediments, 
2. porosity, 
3. thickness of the mobile sand layer and 
4. content of organic matter in muddy sediments. 
Table 1: Sources of sedimentological datasets. 
Data 
Source 
# 
Spatial Extent 
Temporal 
Extent 
MUDAB - grain size distributions 
BSH 
25.309 
North Sea 
1924-2008 
WAD ABA - grain size distributions 
Helmholtzzentrum Geesthacht 
1.449 
German Wadden sea 
1987-2003 
Grain size distributions Spiekeroog 
Research institute Senckenberg am 
Meer, Wilhelmshaven 
941 
Shore face Spiekeroog 
1986-1989, 
2005 
Grain size distributions Great Britain 
British Geological Survey (BGS), 
Nottingham, Great Britain 
15.946 
North Sea sector Great 
Britain 
Grain size distributions Netherlands 
Geological Survey of the Netherlands 
(TNO), Utrecht, The Netherlands 
6.619 
North Sea sector Nether 
lands 
1969-2006 
Grain size distributions Norway 
Norges geologiske undersokelse 
(NGU), Trondheim, Norway 
129 
Skagerrak 
1992-1994 
Interpolated medians of grain size 
distributions Belgium 
Royal Belgian Institute of Natural 
Sciences, Brussels, Belgium 
250m-Grid 
North Sea sector Belgium 
Grain size distributions Belgium 
Royal Belgian Institute of Natural 
Sciences, Brussels, Belgium 
3.468 
North Sea sector Belgium 
1984-2009 
Grain size distributions Denmark 
GEUS, Copenhagen, Denmark 
215 
North Sea 
2000-2008 
Grain size distributions Denmark 
Danish Coastal Authority, Ministry of 
Transport and Energy, Denmark 
215 
North Sea sector Den 
mark 
2010 
GPDN - grain size distributions 
Geopotential Deutsche Nordsee 
(BSH, BGR, LB EG), Germany 
1.363 
North Sea sector Germa 
ny 
2008-2011 
SedDB (Küste) - grain size distribu 
tions 
BfG, Koblenz, Germany 
4.949 
Elbe-, Jade-, Weser-, 
Ems-estuary 
1982-2009 
Grain size distributions Sedimentadas 
Waddenzee 
Waterdienst (Rikswaterstaat, Ministe- 
rie van Infrastructuur en Milieu), 
Lelystadt, Netherlands 
7.502 
Wadden sea of the Neth 
erlands 
1989-1997 
Grain size distributions Offshore 
Windfarms licensing procedures 
BSH (confidential) , Germany 
4.383 
North Sea sector 
Deutschland 
2000-2008 
FeDaBa - grain size distributions 
BfG, Koblenz, Germany 
3.163 
Elbe-, Jade-, Weser-, 
Ems-estuary 
1980-2012 
GROBEKART - grain size distribu 
tions 
AWI, Germany 
4.373 
Shelf of Schleswig- 
Holstein 
2004-2011 
The grain size analyses cover the German Bight in a quite high spatial resolution of one 
half to one nautical mile. In contrast to the bathymetric database, hardly any time series