1. Development of a prototype global CO2 emissions monitoring system for the European Union: The CO2 Human Emission (CHE) project.
- Author
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Bousserez, Nicolas, McNorton, Joe, Agusti-Panareda, Anna, Choulga, Margarita, Barre, Jerome, Balsamo, Gianpaolo, and Engelen, Richard
- Subjects
- *
CLIMATE change mitigation , *EMISSION inventories , *PROOF of concept , *SYSTEMS development , *CARBON dioxide - Abstract
The CHE project consortium, which consists of 22 European partners, aims to coordinate efforts towards the development of a European system to monitor global anthropogenic CO2 emissions. The objective is to deliver a proof of concept system which, given planned and potential future Earth observation missions consisting of a constellation of satellites and an expanded ground-based measurement network, can provide constraints on anthropogenic CO2 emissions at spatial and temporal scales relevant to policy-makers in support of the implementation of efficient climate change mitigation strategies. Here, a prototype design overview is presented, which integrates the components of a proposed Earth observation monitoring system relying on bottom-up (prior emission inventory) and top-down (atmospheric measurements) constraints. Uncertainties in the prior emissions and model transport are carefully analysed as a necessary prerequisite to characterize the information content of the inversion system. A hybrid method appropriate for global CO2 inversions is outlined, which builds on the existing infrastructure of the Integrated Forecast System (IFS) at ECMWF and combines information from both an ensemble of CO2 simulations and an adjoint-based approach. Early stage preliminary results from the ensemble component of this system are provided, and the main scientific and technical challenges toward building an operational CO2 emission monitoring system are discussed together with potential solutions. [ABSTRACT FROM AUTHOR]
- Published
- 2019