Our group develops models within projects for different purposes. A model overview picture illustrates our models of different complexity. It is ERSEM and the family of ECOHAM separated for specific areas from the North Sea to the North Atlantic. We place the model code for specific applications to the communities' disposal.

The following model codes from IfM Hamburg are available and can be downloaded:

• European Regional Seas Ecosystem Model (ERSEM)
• Ecological North Sea Model Hamburg, Version 1 (ECOHAM1)
• Ecological North Sea Model Hamburg, Version 2 (ECOHAM2)

Several datasets of observations exist for the North Sea which were repeatedly used for initialization and/or validational efforts. The observations were usually averaged to give climatological means for spatial box structures (Figure). The ICES dataset, the ERSEM datasets and the NOWESP datasets were derived in this manner. Long time series were only obtained in the coastal areas of the North Sea, namely in the Dutch coastal zone, at Helgoland and at station E1 in the English Channel (NOWESP). In the following the datasets are described in some detail, and the locations of their availability are given.

The following data sets are available and can be downloaded:

• Data sets from the European Union project (ERSEM)
• Data sets from (ICES)
• Data sets from the UK project (NERC NSP)
• Data sets from the European Union project (NOWESP)
• Data sets from the SFB 327 (River Elbe, monitoring abiotic and biotic processes) 1986-1995 (CD-ROM)
• Data sets from FLEX 1976 (Fladen Ground Experiment March-June 1976, northern North Sea) (Description)
• Data set of continental river loads: River.pdf README.txt ifm-river2009-ascii.zip ifm-river-2009-excel.zip