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==Stability models==
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<div style="float:right; margin-left:10px; margin-top:5px">[[File:Compendiumcoastandsea.jpg|160px|right|link=Compendium for Coast and Sea - creating a marine science-policy interface]]</div>
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'''Compendium for Coast and Sea - creating a marine science-policy interface'''
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[[image:stability1.jpg|thumb|370px|Fig.1: Left (<math>\alpha>0</math>), all the solutions starting in a neighborhood of the equilibrium A (<math>x=0</math>) tend to A for <math>t \to \infty</math> while there are solutions starting arbitrarily near B (<math>x=x_c</math>) that do not tend to B. Therefore, A is stable whereas B is unstable. Right (<math>\alpha<0</math>), now the contrary occurs, the A and B have exchanged their roles. ]]
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The Compendium for Coast and Sea is an integrated knowledge document about the socio-economic, environmental and institutional aspects of the coast and sea in Flanders and Belgium. As such, it constitutes a one-stop shop for data and information from the Flemish and Belgian marine and maritime research community and experts. The Compendium for Coast and Sea is an initiative of the Flanders Marine Institute (VLIZ) and was developed in close collaboration with experts from the research community, government, industry and civil society organisations. The first version of the Compendium was launched in 2013, a second edition was presented in 2015.
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Coastal systems may self-organize at various length and time scales. Sand banks, sand waves both in the shelf and at the coastline, sand bars, tidal inlets, [[cusp]]s, cuspate forelands, spits (among others) are morphological features that are frequently dominated by self-organized processes. Stability models are the genuine tool to understand these processes and make predictions on the dynamics of those features.
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The concepts of equilibrium and stability come from Classical Mechanics (see, for example, Arrowsmith and Place, 1992<ref>D. K. Arrowsmith and C. M. Place, 1992. "Dynamical Systems". Chapman and Hall/CRC.</ref>). A state where a system is in balance with the external forcing so that it does not change in time is called an '''equilibrium position'''. However, any equilibrium position may be either stable or unstable. If released near a '''stable''' equilibrium position, the system will evolve towards such a position. On the contrary, if released near an '''unstable''' equilibrium position, it will go far away from this position.
 

Latest revision as of 14:52, 8 April 2016

Compendiumcoastandsea.jpg

Compendium for Coast and Sea - creating a marine science-policy interface


The Compendium for Coast and Sea is an integrated knowledge document about the socio-economic, environmental and institutional aspects of the coast and sea in Flanders and Belgium. As such, it constitutes a one-stop shop for data and information from the Flemish and Belgian marine and maritime research community and experts. The Compendium for Coast and Sea is an initiative of the Flanders Marine Institute (VLIZ) and was developed in close collaboration with experts from the research community, government, industry and civil society organisations. The first version of the Compendium was launched in 2013, a second edition was presented in 2015.

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