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Communication Dans Un Congrès Année : 2023

Estimating atmospheric radiative forcings using sensitivity monte carlo methods

Stéphane Blanco
Vincent Eymet
Vincent Forest
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Richard Fournier
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Résumé

One aspect of climate change analysis is the quantification of radiative forcings, i.e., the change of top-of-atmosphere (TOA) net radiative flux induced by an isolated, instantaneous change in surface or atmospheric constitution. In this paper, we discuss recent advances in path-integral formulations for producing reference estimates of radiative forcings, in the form of partial derivatives we call "sensitivities". We present the theoretical framework and highlight the role of computer science acceleration techniques in making the computational cost insensitive to the system’s multidimensional and multiphysics complexity. The approach is demonstrated by estimating the flux sensitivity to the concentration of two greenhouse gases.
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Dates et versions

hal-04165592 , version 1 (19-07-2023)

Identifiants

  • HAL Id : hal-04165592 , version 1

Citer

Nada Chems Mourtaday, Mégane Bati, Stéphane Blanco, Jean-Louis Dufresne, Mouna El-Hafi, et al.. Estimating atmospheric radiative forcings using sensitivity monte carlo methods. 10th International Symposium on Radiative Transfer (RAD 2023), Jun 2023, Thessalonique, Greece. pp.1-8. ⟨hal-04165592⟩
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