dorsal/arxiv
View SchemaUsing data assimilation in laboratory experiments of geophysical flows
| Authors | Martin Galmiche, Joel Sommeria, Emmanuelle Thivolle-Cazat, Jacques Verron |
|---|---|
| Categories | |
| ArXiv ID | physics/0302007 |
| URL | https://arxiv.org/abs/physics/0302007 |
Abstract
Data assimilation is used in numerical simulations of laboratory experiments in a stratified, rotating fluid. The experiments are performed on the large Coriolis turntable (Grenoble, France), which achieves a high degree of similarity with the ocean, and the simulations are performed with a two-layer shallow water model. Since the flow is measured with a high level of precision and resolution, a detailed analysis of a forecasting system is feasible. Such a task is much more difficult to undertake at the oceanic scale because of the paucity of observations and problems of accuracy and data sampling. This opens the way to an experimental test bed for operational oceanography. To illustrate this, some results on the baroclinic instability of a two-layer vortex are presented.
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"abstract": "Data assimilation is used in numerical simulations of laboratory experiments\nin a stratified, rotating fluid. The experiments are performed on the large\nCoriolis turntable (Grenoble, France), which achieves a high degree of\nsimilarity with the ocean, and the simulations are performed with a two-layer\nshallow water model. Since the flow is measured with a high level of precision\nand resolution, a detailed analysis of a forecasting system is feasible. Such a\ntask is much more difficult to undertake at the oceanic scale because of the\npaucity of observations and problems of accuracy and data sampling. This opens\nthe way to an experimental test bed for operational oceanography. To illustrate\nthis, some results on the baroclinic instability of a two-layer vortex are\npresented.",
"arxiv_id": "physics/0302007",
"authors": [
"Martin Galmiche",
"Joel Sommeria",
"Emmanuelle Thivolle-Cazat",
"Jacques Verron"
],
"categories": [
"physics.flu-dyn",
"physics.ao-ph",
"physics.geo-ph"
],
"title": "Using data assimilation in laboratory experiments of geophysical flows",
"url": "https://arxiv.org/abs/physics/0302007"
},
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