Spring 2014 Newsletter

WELCOME

Welcome to the second twice yearly newsletter for the iCOASST project. These newsletters will:

Posted 05/09/2014 11:19


iCOASST International Conference - Simulating decadal coastal morphodynamics

The first iCOASST International Workshop was held at the Holiday Inn Southampton for 15-17th October 2013. It brought together the iCOASST research team with 13 international experts from Australia, USA, Spain, Italy, the Netherlands and the UK. It enabled the ambitious goals and early deliverables of the iCOASST project to be discussed and reflected upon in a constructive yet critical manner. Several issues were raised by the international experts:

Posted 05/09/2014 10:39


Figure 1: Main shape objects and landforms for behavioural modelling

Geomorphic model integration: raster behavioural approach

The modelling approach that underpins iCOASST is based on the notion that long-term projections of coastal behaviour will be best modelled through integrated analysis of interacting coastal behaviours. Based on the observation that most of the behavioural models often used for engineering assessment operate on some abstraction of a full 3D topography/bathymetry (e.g. shoreline, shore profiles, estuary areas, etc.) a raster based behavioural framework has been identified as an alternative representation that is worthy to explore. The rationale and key challenges of this approach are summarized below.

Posted 05/09/2014 10:23


Figure 1: Wave measurement device

Data Driven Modelling

We are all likely to have done some form of data-driven modelling in our lives. Judging when it is safe to cross the road or deciding whether to take a raincoat when going out of the house are forms of data-driven modelling. That is, based on some observations and analysis of these we make a prediction of future events.

Posted 04/09/2014 13:49


Figure 1: Residual Currents off Suffolk, Southern North Sea, November 2007. X,Y are a simple Mercator projection, the arrows are all the same length, the colour bar represents bathymetry in metres.

Coastal Area Modelling—How does it fit into iCOASST?

Coastal area modelling provides information on residual sediment pathways over large domains showing how pathways in the open coast connect and control small-scale coastal features acting as sediment sources (or sinks). These may be estuaries, beaches, cliffs, etc., or offshore sandbanks.

Posted 04/09/2014 13:44


Conceptual iCOASST Compositions

Conceptual iCOASST Compositions

One of the main objectives of iCOASST is to link models with the goal of providing more informative and realistic simulations. In this context, a composition is a set of linked numerical models that exchange information as they run. In this way a model of coastal erosion in one area can pass information on the volumes of sediment that leave it onto the next model in time for it to influence the behaviour observed in the second model. We have developed conceptual compositions (which we have yet to implement) of sections of Liverpool Bay (below, left) and the Suffolk Coast (below, right) that both require the following elements:

Posted 04/09/2014 13:32


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