Articles | Volume 8, issue 6
Geosci. Model Dev., 8, 1857–1876, 2015
https://doi.org/10.5194/gmd-8-1857-2015
Geosci. Model Dev., 8, 1857–1876, 2015
https://doi.org/10.5194/gmd-8-1857-2015

Model description paper 23 Jun 2015

Model description paper | 23 Jun 2015

Development and application of the WRFPLUS-Chem online chemistry adjoint and WRFDA-Chem assimilation system

J. J. Guerrette and D. K. Henze

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Short summary
WRFPLUS-Chem is a coupled meteorology-chemistry adjoint and tangent linear model, with applications in sensitivity analysis and four-dimensional variational data assimilation. The linearized models are verified against finite difference approximations from the nonlinear forward model, WRF-Chem. A new checkpointing scheme enables data assimilation beyond 6h. New capabilities are demonstrated in an emission sensitivity study.