Global cloud-system-resolving simulation of aerosol effect on warm clouds

Kentaroh Suzuki, Teruyuki Nakajima, Masaki Satoh, Hirofumi Tomita, Toshihiko Takemura, Takashi Y. Nakajima, Graeme L. Stephens

    Research output: Contribution to journalArticlepeer-review

    39 Citations (Scopus)

    Abstract

    We simulated the interactions of aerosols with liquid clouds using an aerosol-coupled global cloud-system-resolving model with horizontal resolution of 7 km, and the results are compared with satellite observations of cloud and aerosols. The result shows detailed spatial structures of cloud droplet effective radii (CDR) realistically simulated especially over tropics. The global correlation statistics of liquid water path (LWP) with aerosol index (AI) are investigated for different cloud types to reveal that the LWP slightly decreases with increasing AI, closely resembling satellite-observed features. The CDRs for different cloud types are also shown to decrease with increasing AI, and the sensitivities are found to be relatively similar among cloud types although of discrepancy in absolute values between the model and satellite observation. The model also simulates vertical growth patterns of liquid droplets and their interactions with aerosols in a manner similar to satellite observations.

    Original languageEnglish
    Article numberL19817
    JournalGeophysical Research Letters
    Volume35
    Issue number19
    DOIs
    Publication statusPublished - Oct 16 2008

    All Science Journal Classification (ASJC) codes

    • Geophysics
    • Earth and Planetary Sciences(all)

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