Articles | Volume 14, issue 6
Geosci. Model Dev., 14, 3335–3359, 2021
https://doi.org/10.5194/gmd-14-3335-2021

Special issue: The Norwegian Earth System Model: NorESM; basic development,...

Geosci. Model Dev., 14, 3335–3359, 2021
https://doi.org/10.5194/gmd-14-3335-2021

Development and technical paper 04 Jun 2021

Development and technical paper | 04 Jun 2021

Implementing a sectional scheme for early aerosol growth from new particle formation in the Norwegian Earth System Model v2: comparison to observations and climate impacts

Sara M. Blichner et al.

Data sets

Data for: Implementing a sectional scheme for early aerosol growth from new particle formation in the Norwegian Earth System Model v2: comparison to observations and climate impacts Sara Marie Blichner https://doi.org/10.11582/2020.00056

Model code and software

OAS-Code-Setup: model code and setup instructions Sara Marie Blichner https://doi.org/10.5281/zenodo.4265057

OAS-DEV: post-processing code Sara Marie Blichner https://doi.org/10.5281/zenodo.4265033

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Short summary
Aerosol–cloud interactions are the largest contributor to climate forcing uncertainty. In this study we combine two common approaches to aerosol representation in global models: a sectional scheme, which is closer to first principals, for the smallest particles forming in the atmosphere and a log-modal scheme, which is faster, for the larger particles. With this approach, we improve the aerosol representation compared to observations, while only increasing the computational cost by 15 %.