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The primary objective of the
EC-MAST III project PROMISE (Pre-Operational Modelling
In the Seas of Europe) was to develop a framework to optimise
the application of existing pre-operational dynamical
models of the North Sea in order to quantify the rates
and scales of the exchange of sediments between the coast
and the near-shore zone. This framework should also be
applicable to other coastal areas and for broader management
applications. The project started in 1996 and finishes
early 1999.
The work was structured
into 4 components: observations (O), rationalising existing
models (R), wave modelling (W) and turbulence / sediment
modelling (S). Further information, including an overview
of the papers and reports published can be found at http://www.pol.ac.uk/promise/.
The Hydraulics Laboratory
of K.U.Leuven was mainly involved in the wave modelling
component. For the W-component the objective was to develop
methodologies for application of existing third generation
(3G) models in shallow water, including numerical improvements
to enable high resolution shelf applications and the introduction
of interactions associated with tidal and storm surge
dynamics, ultimately for use in SPM-modelling. The three
milestones for the wave component in PROMISE were the
establishment and dissemination of model codes for the
following:
-
MW-1: Waves in the North
Sea - shelf scale
-
MW-2: Waves in shallow
water - coastal scale
-
MW-3: Combined waves
and tides
At the beginning of the
project it was opted to improve the capabilities of the
WAM-Cycle4 model (Günther et al., 1992), a model which
is considered state of the art at least for deep and intermediate
water depths.
Waves on shelf scale have
been studied through an intercomparison exercise between
different implementations at the different participating
institutes.
For wave modelling in coastal
regions where usually shallow water conditions prevail
and high spatial resolution is needed, considerable enhancements
to the WAM-Cycle 4 model have been made so that the model
has become practically applicable.
Waves interacting with tide
formed the last part of the project. A generic module
in which tides, surges and waves are incorporated has
been developed and tested. Two existing pre-operational
models, the enhanced WAM wave model and a hydrodynamic
model were adapted and incorporated into a coupling framework
that allows an efficient exchange of information.
The relevant computer code
can be obtained through anonymous ftp to '134.58.57.50'
in the subdirectory 'hydr/PROMISE'.
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