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| GEOL0251-2

 | Geochemical modelling and global changes in the past

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| Duration : | 15h Th, 15h Pr | |
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| Credits/ECTS : |
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| Holder(s) : | Louis François | |
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| Course contents :
| Theoretical part: Introduction: the challenges of modelling. The biogeochemical cycles. Atmospheric CO2 and climate change: past and future. Chemical equilibria and pH calculation. Reservoir models: theory and numerical methods. Modelling of phosphorus and carbon cycles in the modern ocean. Transport processes: simple climate modelling, modelling of diagenesis in marine sediments. Geochemical evolution of the Earth at geological timescales. Practical part: Short introduction to computer programming. Exercises on computer: use of models developed in the theoretical lessons (sensitivity studies) and development/programming of simple models by the student.
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| Course objective :
| The objective of the lessons is an introduction to numerical methods used in Earth global modelling. These methods are illustrated in the framework of the biogeochemical cycles. The focus is on the processes governing the evolution of the chemical composition of ocean and the atmosphere at various timescales, from the paleoenvironmental changes observed in geological records to the present climate changes. The lessons contain practical exercises on computer where the student will perform simulations of simple numerical models. | |
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| Prerequisites :
| No background knowledge is required. All concepts or theory necessary to understand the lessons are explained in the classes, including a short introduction to computer programming. | |
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| Organization :
| Theoretical and practical classes are organised in a series of 2-hour lessons. A PC connected to a laboratory computer is available to the student during practical exercises. | |
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| Written notes :
| A pdf file of the lessons is available to the students. | |
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| Assessment :
| Oral examination | |
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| Contacts :
| Louis François, Research Associate FNRS, Laboratory for Planetary and Atmospheric Physics, Institute of Astrophysics and Geophysics (Bat. B5c), Tel. 04/366 97 76, e-mail: Louis.Francois@ulg.ac.be | |
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