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Proceedings Paper

Direct variational data assimilation algorithm for atmospheric chemistry data with transport and transformation model
Author(s): Alexey Penenko; Vladimir Penenko; Roman Nuterman; Alexander Baklanov; Alexander Mahura
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Paper Abstract

Atmospheric chemistry dynamics is studied with convection-diffusion-reaction model. The numerical Data Assimilation algorithm presented is based on the additive-averaged splitting schemes. It carries out ''fine-grained'' variational data assimilation on the separate splitting stages with respect to spatial dimensions and processes i.e. the same measurement data is assimilated to different parts of the split model. This design has efficient implementation due to the direct data assimilation algorithms of the transport process along coordinate lines. Results of numerical experiments with chemical data assimilation algorithm of in situ concentration measurements on real data scenario have been presented. In order to construct the scenario, meteorological data has been taken from EnviroHIRLAM model output, initial conditions from MOZART model output and measurements from Airbase database.

Paper Details

Date Published: 19 November 2015
PDF: 12 pages
Proc. SPIE 9680, 21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics, 968076 (19 November 2015); doi: 10.1117/12.2206008
Show Author Affiliations
Alexey Penenko, Institute of Computational Mathematics and Mathematical Geophysics (Russian Federation)
Novosibirsk State Univ. (Russian Federation)
Vladimir Penenko, Institute of Computational Mathematics and Mathematical Geophysics (Russian Federation)
Novosibirsk State Univ. (Russian Federation)
Roman Nuterman, Danish Meteorological Institute (Denmark)
Univ. of Copenhagen (Denmark)
Tomsk State Univ. (Russian Federation)
Alexander Baklanov, Danish Meteorological Institute (Denmark)
World Meteorological Organization (Switzerland)
Alexander Mahura, Danish Meteorological Institute (Denmark)


Published in SPIE Proceedings Vol. 9680:
21st International Symposium Atmospheric and Ocean Optics: Atmospheric Physics
Oleg A. Romanovskii, Editor(s)

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