TY - Type of reference TI - An accurate estimation of the radiative forcing by the Monte-Carlo method AU - Yaniss Nyffenegger-Péré AU - Mégane Bati AU - Stéphane Blanco AU - Jean-Louis Dufresne AU - Mouna El Hafi AU - Vincent Eymet AU - Vincent Forest AU - Richard Fournier AU - Nicolas Mellado AU - Nada Mourtaday AU - Mathias Paulin AB - We want to estimate the outgoing Earth’s radiative flux integrated over the thermal infrared, over the entire surface of the globe and over a long climatic period. This calculation is known to be very difficult to achieve without simplifications of the frequency, spatial or temporal description (e.g. switching from a line-by-line model to a band model, using a coarser temporal discretization, etc). We show that the Monte-Carlo method can avoid these simplifications if we combine the following two ideas : introduce fictitious colliders to allow ray tracing without knowledge of the extinction coefficient field and statistically sample the spectral lines. We show that it is not more expensive to perform this integration over a day or a month, over an atmospheric column or over the whole Earth, or finally over a narrow frequency band or over the whole infrared spectrum. DO - 10.21494/ISTE.OP.2022.0898 JF - Entropy: Thermodynamics – Energy – Environment – Economy KW - Radiative transfer, Monte-Carlo, Line-By-Line, CO2 radiative forcing, Transfert radiatif, Monte-Carlo, Raie-Par-Raie, Forçage radiatif du CO2, L1 - https://www.openscience.fr/IMG/pdf/iste_entropie22v3n3_3.pdf LA - en PB - ISTE OpenScience DA - 2022/12/12 SN - 2634-1476 TT - Une estimation exacte du forçage radiatif par la méthode de Monte-Carlo UR - https://www.openscience.fr/An-accurate-estimation-of-the-radiative-forcing-by-the-Monte-Carlo-method IS - Special issue VL - 3 ER -