Intercomparison of Atmospheric Carbonyl Sulfide (TransCom‐COS): 2. Evaluation of Optimized Fluxes Using Ground‐Based and Aircraft Observations

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  • Jin Ma
    Institute for Marine and Atmospheric Research Utrecht Utrecht University Utrecht The Netherlands
  • Marine Remaud
    Laboratoire des Sciences du Climat et de l'Environnement CEA‐CNRS‐UVSQ IPSL Gif‐sur‐Yvette France
  • Philippe Peylin
    Laboratoire des Sciences du Climat et de l'Environnement CEA‐CNRS‐UVSQ IPSL Gif‐sur‐Yvette France
  • Prabir Patra
    Research Institute for Global Change JAMSTEC Yokohama Japan
  • Yosuke Niwa
    National Institute for Environmental Studies Tsukuba Japan
  • Christian Rodenbeck
    Max Planck Institute for Biogeochemistry Jena Germany
  • Mike Cartwright
    School of Physics and Astronomy Space Park Leicester University of Leicester Leicester UK
  • Jeremy J. Harrison
    School of Physics and Astronomy Space Park Leicester University of Leicester Leicester UK
  • Martyn P. Chipperfield
    School of Earth and Environment University of Leeds Leeds UK
  • Richard J. Pope
    School of Earth and Environment University of Leeds Leeds UK
  • Christopher Wilson
    School of Earth and Environment University of Leeds Leeds UK
  • Sauveur Belviso
    Laboratoire des Sciences du Climat et de l'Environnement CEA‐CNRS‐UVSQ IPSL Gif‐sur‐Yvette France
  • Stephen A. Montzka
    Global Monitoring Laboratory National Oceanic & Atmospheric Administration Boulder CO USA
  • Isaac Vimont
    Global Monitoring Laboratory National Oceanic & Atmospheric Administration Boulder CO USA
  • Fred Moore
    Global Monitoring Laboratory National Oceanic & Atmospheric Administration Boulder CO USA
  • Elliot L. Atlas
    Rosenstiel School of Marine and Atmospheric Science University of Miami Miami FL USA
  • Efrat Schwartz
    Earth and Planetary Sciences Weizmann Institute of Science Rehovot Israel
  • Maarten C. Krol
    Institute for Marine and Atmospheric Research Utrecht Utrecht University Utrecht The Netherlands

書誌事項

公開日
2023-09-26
資源種別
journal article
権利情報
  • http://creativecommons.org/licenses/by/4.0/
DOI
  • 10.1029/2023jd039198
公開者
American Geophysical Union (AGU)

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説明

<jats:title>Abstract</jats:title><jats:p>We present a comparison of atmospheric transport models that simulate carbonyl sulfide (COS). This is part II of the ongoing Atmospheric Transport Model Inter‐comparison Project (TransCom–COS). Differently from part I, we focus on seven model intercomparison by transporting two recent COS inversions of NOAA surface data within TM5‐4DVAR and LMDz models. The main goals of TransCom‐COS part II are (a) to compare the COS simulations using the two sets of optimized fluxes with simulations that use a control scenario (part I) and (b) to evaluate the simulated tropospheric COS abundance with aircraft‐based observations from various sources. The output of the seven transport models are grouped in terms of their vertical mixing strength: strong and weak mixing. The results indicate that all transport models capture the meridional distribution of COS at the surface well. Model simulations generally match the aircraft campaigns HIAPER Pole‐To‐Pole Observations (HIPPO) and Atmospheric Tomography Mission (ATom). Comparisons to HIPPO and ATom demonstrate a gap between observed and modeled COS over the Pacific Ocean at 0–40°N, indicating a potential missing source in the free troposphere. The effects of seasonal continental COS uptake by the biosphere, observed on HIPPO and ATom over oceans, is well reproduced by the simulations. We found that the strength of the vertical mixing within the column as represented in the various atmospheric transport models explains much of the model to model differences. We also found that weak‐mixing models transporting the optimized flux derived from the strong‐mixing TM5 model show a too strong seasonal cycle at high latitudes.</jats:p>

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