Quantifying the tropospheric ozone radiative effect and its temporal evolution in the satellite era - INSU - Institut national des sciences de l'Univers Accéder directement au contenu
Article Dans Une Revue (Article De Synthèse) Atmospheric Chemistry and Physics Année : 2024

Quantifying the tropospheric ozone radiative effect and its temporal evolution in the satellite era

Alexandru Rap

Résumé

Using state-of-the-art satellite ozone profile products, and chemical transport model, we provide an updated estimate of the tropospheric ozone radiative effect (TO3RE) and observational constraint on its variability over the decade 2008–2017. Previous studies have shown the short-term (i.e. a few years) globally weighted average TO3RE to be 1.17±0.03 W/m2, while our analysis suggests that the long-term (2008–2017) average TO3RE to be 1.21–1.28 W/m2. Over this decade, the modelled/observational TO3RE linear trends show negligible change (i.e. ±0.1 %/year), so the tropospheric ozone radiative contribution to climate has remained stable with time. Two model sensitivity experiments fixing emissions and meteorology to one year (i.e. start year – 2008) show that ozone precursor emissions (meteorological factors) have had limited (substantial) impacts on the long-term tendency of globally weighted average TO3RE. Here, the meteorological variability in the tropical/sub-tropical upper troposphere is dampening any tendency in TO3RE from other factors (e.g. emissions, atmospheric chemistry).
Fichier principal
Vignette du fichier
acp-24-3613-2024.pdf (4.42 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Licence : CC BY - Paternité

Dates et versions

insu-04208476 , version 1 (15-09-2023)
insu-04208476 , version 2 (24-03-2024)

Identifiants

Citer

Richard J Pope, Alexandru Rap, Matilda A Pimlott, Brice Barret, Eric Le Flochmoen, et al.. Quantifying the tropospheric ozone radiative effect and its temporal evolution in the satellite era. Atmospheric Chemistry and Physics, 2024, 24 (6), pp.3613-3626. ⟨10.5194/acp-24-3613-2024⟩. ⟨insu-04208476v2⟩
39 Consultations
21 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More