N2O Temporal Variability from the Middle Troposphere to the Middle Stratosphere Based on Airborne and Balloon-Borne Observations during the Period 1987–2018 - INSU - Institut national des sciences de l'Univers Accéder directement au contenu
Article Dans Une Revue Atmosphere Année : 2023

N2O Temporal Variability from the Middle Troposphere to the Middle Stratosphere Based on Airborne and Balloon-Borne Observations during the Period 1987–2018

Elliot Atlas
Heiko Bozem
Róisín Commane
  • Fonction : Auteur
Bruce Daube
  • Fonction : Auteur
Glenn S Diskin
  • Fonction : Auteur
Felix Friedl-Vallon
  • Fonction : Auteur
Eric Hintsa
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Dale F Hurst
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Peter Hoor
Kenneth W Jucks
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Armin Kleinböhl
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Harry Küllmann
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Eric A Kort
  • Fonction : Auteur
Kathryn Mckain
Fred L Moore
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Florian Obersteiner
  • Fonction : Auteur
Tanja Schuck
Geoffrey C Toon
  • Fonction : Auteur
Silvia Viciani
Gerald Wetzel
Jonathan Williams
  • Fonction : Auteur
Steven C Wofsy
  • Fonction : Auteur

Résumé

Nitrous oxide (N2O) is the fourth most important greenhouse gas in the atmosphere and is considered the most important current source gas emission for global stratospheric ozone depletion (O3). It has natural and anthropogenic sources, mainly as an unintended by-product of food production activities. This work examines the identification and quantification of trends in the N2O concentration from the middle troposphere to the middle stratosphere (MTMS) by in situ and remote sensing observations. The temporal variability of N2O is addressed using a comprehensive dataset of in situ and remote sensing N2O concentrations based on aircraft and balloon measurements in the MTMS from 1987 to 2018. We determine N2O trends in the MTMS, based on observations. This consistent dataset was also used to study the N2O seasonal cycle to investigate the relationship between abundances and its emission sources through zonal means. The results show a long-term increase in global N2O concentration in the MTMS with an average of 0.89 ± 0.07 ppb/yr in the troposphere and 0.96 ± 0.15 ppb/yr in the stratosphere, consistent with 0.80 ppb/yr derived from ground-based measurements and 0.799 ± 0.024 ppb/yr ACE-FTS (Atmospheric Chemistry Experiment Fourier Transform Spectrometer) satellite measurements.
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insu-04191038 , version 1 (30-08-2023)

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Gisèle Krysztofiak, Valéry Catoire, Thierry Dudok de Wit, Douglas E Kinnison, A R Ravishankara, et al.. N2O Temporal Variability from the Middle Troposphere to the Middle Stratosphere Based on Airborne and Balloon-Borne Observations during the Period 1987–2018. Atmosphere, 2023, 14 (3), pp.585. ⟨10.3390/atmos14030585⟩. ⟨insu-04191038⟩
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