The impacts of modeling global CO2 concentrations with GEOS-Chem using different ocean carbon fluxes
نویسندگان
چکیده
منابع مشابه
Improved simulation of regional CO2 surface concentrations using GEOS-Chem and fluxes from VEGAS
CO2 measurements have been combined with simulated CO2 distributions from a transport model in order to produce the optimal estimates of CO2 surface fluxes in inverse modeling. However, one persistent problem in using model–observation comparisons for this goal relates to the issue of compatibility. Observations at a single station reflect all underlying processes of various scales. These proce...
متن کاملAdjoint of GEOS-Chem
Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Abstract Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Abstract We present the adjoint of the global chemical transport model GEOS-Chem, focusing on the chemical and thermodynamic relationships between sulfate – ammonium – nitrate aerosols and their gas-phase precursors. The adjoint...
متن کاملDevelopment of the adjoint of GEOS-Chem
We present the adjoint of the global chemical transport model GEOS-Chem, focusing on the chemical and thermodynamic relationships between sulfate – ammonium – nitrate aerosols and their gas-phase precursors. The adjoint model is constructed from a combination of manually and automatically derived discrete adjoint algorithms and numerical solutions to continuous adjoint equations. Explicit inclu...
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Feedbacks controlling long-term fluxes in the carbon cycle and in particular atmospheric carbon dioxide are critical in stabilizing the Earth’s long-term climate. It has been hypothesized that atmospheric CO2 concentrations overmillions of years are controlled by a CO2-driven weathering feedback that maintains a mass balance between the CO2 input to the atmosphere from volcanism, metamorphism a...
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Influences of specific sources of inorganic PM2.5 on peak and ambient aerosol concentrations in the US are evaluated using a combination of inverse modeling and sensitivity analysis. First, sulfate and nitrate aerosol measurements from the IMPROVE network are assimilated using the four-dimensional variational (4D-Var) method into the GEOS-Chem chemical transport model in order to constrain emis...
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ژورنال
عنوان ژورنال: Atmospheric and Oceanic Science Letters
سال: 2019
ISSN: 1674-2834,2376-6123
DOI: 10.1080/16742834.2019.1631690