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  Advancing the DYNAMICO-LMDZ atmospheric model to improve the simulation of the polar atmosphere

Vignon, É., Wiener, V., Raillard, L., Agosta, C., Dubos, T., Meurdesoif, Y., Fromang, S., Caubel, A., Madeleine, J.-B., Borella, A., Wimmer, M., Amory, C., Rivière, G., Genthon, C. (2023): Advancing the DYNAMICO-LMDZ atmospheric model to improve the simulation of the polar atmosphere, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-2419

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018325 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018325_1
Genre: Conference Paper

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 Creators:
Vignon, Étienne1, Author
Wiener, Valentin1, Author
Raillard, Lea1, Author
Agosta, Cécile1, Author
Dubos, Thomas1, Author
Meurdesoif, Yann1, Author
Fromang, Sébastien1, Author
Caubel, Arnaud1, Author
Madeleine, Jean-Baptiste1, Author
Borella, Audran1, Author
Wimmer, Meryl1, Author
Amory, Charles1, Author
Rivière, Gwendal1, Author
Genthon, Christophe1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

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 Abstract: LMDZ is the global atmospheric component of the IPSL-CM Earth System Model, actively and historically involved in the CMIP exercices. The physics of LMDZ was recently coupled with the DYNAMICO icosahedral dynamical core, which allows in particular for a more consistent treatment of the atmospheric dynamics at high latitudes. DYNAMICO-LMDZ is now involved in the AWACA and THINICE projects, which aims to improve the simulation of the past, present and future polar climates thanks to intensive observational campaigns in the Antarctic and Arctic. In this overview presentation, we show the recent setting-up of new limited-area configurations of DYNAMICO-LMDZ to evaluate the physical content of the model over the poles as well as some on-going work on the parameterization development. We will show recent advances in the simulation of katabatic winds, a new drifting-snow scheme, and improvements in the representation of boundary-layer mixed-phase clouds. Current challenges and prospects regarding the parameterization of supersaturation with respect to ice, the representation of snow-atmosphere interactions, the physics-dynamics coupling in katabatic flows, as well as the tuning of an Antarctic configuration of the model will also be briefly presented.

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Language(s): eng - English
 Dates: 2023
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.57757/IUGG23-2419
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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Place of Event: Berlin
Start-/End Date: 2023-07-11 - 2023-07-20

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Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Source Genre: Proceedings
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Publ. Info: Potsdam : GFZ German Research Centre for Geosciences
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: -