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OCEA0023-1

Ecological modelling


Duration :15h Th, 30h Pr
Credits/ECTS :
2nd year of Master's degree in oceanography, in-depth approach3
Holder(s) :Marilaure Grégoire
Course contents : CHAPTER 1 Introduction

  • What is a model?
  • Why do we need models?
CHAPTER 2 Model formulation

  • Conceptual model
  • Mathematical model formulation
  • Formulation of ecological interactions
  • Chemical reactions
  • Inhibition
  • Coupled model equations
  • Impact of physical conditions
CHAPTER 3 Spatial components

  • Taonomy of spatial models
  • Spatial boundary conditions
  • Example: competitive interactions in a lattice model
CHAPTER 4 Parameterisation

  • In situ measurement
  • Literature-Derived parameters
  • Calib_ters.43
CHAPTER 5 Model solution

  • Initial conditions
  • Analytical solutions of differential equations
  • Numerical solution of differential equations
  • Steady-state and stability analysis
CHAPTER 6 Testing and validating the model

  • Dimensional homogeneity and consistency of units
  • Conservation of energy and mass
  • Testing the correctness of the model solution
  • Testing the internal logic of the model
  • Model verification
  • Model validity
  • Model sensitivity
  • Example_74
  • Example of the conservation principle: a mass budget of a marine bay
CHAPTER 7 Taxonomy of ecological models

  • Strategic versus tactic models
  • Continuous and discrete time models
  • Deterministic and stochastic models
  • Density-biomass specific models
  • Physiological - individual-based - population - ecosystem models
  • Example: growth of a Daphnia individual
CHAPTER 8 Appendices

  • Taxonomy of differential equations
  • Solving difference equations
CHAPTER 9 Books for further reading
Course objective : The main aim of this course is to learn how to conceptualize, parameterize and implement mathematical models of marine biogeochemical processes
Prerequisites : None. The mathematics used will be quiet elementary
Workshops : The half part of the time will be devoted to the implementation of very simple examples in order to get familliar with models implementation
Organization : 1.5 ECTS : theory
1.5 ECTS : Exercises
Written notes : Available
Assessment : Evaluated practicle work
Contacts : Marilaure Grégoire, Laboratoire d'Océanologie, ULg
e-mail : mgregoire@ulg.ac.be
tel : 043663354
Remarks : None




ULg : Students and Studies Administration - Academic Affairs
Contact : Monique Marcourt, direction A.E.E.
Date of data : 27/02/2006
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