Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 17, issue 4
Articles | Volume 17, issue 4
https://doi.org/10.5194/gmd-17-1543-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-17-1543-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 4
Development and technical paper
 | 
22 Feb 2024
Development and technical paper |  | 22 Feb 2024

Development of the tangent linear and adjoint models of the global online chemical transport model MPAS-CO2 v7.3

Tao Zheng, Sha Feng, Jeffrey Steward, Xiaoxu Tian, David Baker, and Martin Baxter

Data sets

CarbonTracker CT2022 A. R. Jacobson et al. https://doi.org/10.25925/Z1GJ-3254

Model code and software

The forward, tangent linear, and adjoint models of MPAS-CO2 V7.3 global online chemical transport model system Tao Zheng https://doi.org/10.5281/zenodo.8226620

Computation and plotting scripts for the development of the tangent linear and adjoint models of the global online chemical transport model MPAS-CO2 v7.3 Tao Zheng https://doi.org/10.5281/zenodo.10425739

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Short summary
The tangent linear and adjoint models have been successfully implemented in the MPAS-CO2 system, which has undergone rigorous accuracy testing. This development lays the groundwork for a global carbon flux data assimilation system, which offers the flexibility of high-resolution focus on specific areas, while maintaining a coarser resolution elsewhere. This approach significantly reduces computational costs and is thus perfectly suited for future CO2 geostationery and imager satellites.
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