Variational data assimilation for Hamiltonian problems
โ Scribed by L. R. Watkinson; A. S. Lawless; N. K. Nichols; I. Roulstone
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 308 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0271-2091
- DOI
- 10.1002/fld.844
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๐ SIMILAR VOLUMES
In the past decade the variational method has been successfully applied in data assimilation problems for atmospheric chemistry models. In 4D-var data assimilation, a minimization algorithm is used to find the set of control variables which minimizes the weighted least squares distance between model
The variational intermediate Hamiltonian approach is developed on the basis of the quasi-Rayleigh-Schrijdinger quasidegenerate perturbation theory. The results of test applications to ab initio calculations of molecular excited states are discussed. The new approach is able to produce rapidly and mo