Radiative forcing by long-lived greenhouse gases: Calculations with the AER radiative transfer models

  • Iizuka Satoshi
    National Research Institute for Earth Science and Disaster Resilience
  • Kawamura Ryuichi
    Department of Earth and Planetary Sciences, Kyushu University
  • Nakamura Hisashi
    Research Center for Advanced Science and Technology, University of Tokyo Japan Agency for Marine-Earth Science and Technology
  • Miyama Toru
    Japan Agency for Marine-Earth Science and Technology

書誌事項

タイトル別名
  • Influence of Warm SST in the Oyashio Region on Rainfall Distribution of Typhoon Hagibis (2019)

説明

<p>Typhoon Hagibis (2019) caused widespread flooding and damage over eastern Japan. The associated rainfall maxima were primarily observed on the windward mountain slopes along with the west of the leading edge of a low-level front. Concomitantly, a significant positive value in sea surface temperature anomalies (SSTAs) was observed in association with an ocean eddy over the Oyashio region, together with anomalous warmth over the entire western North Pacific. The present study examines the role of the SSTAs in the rainfall distribution associated with Hagibis, to deepen our understanding of the influence of the midlatitude ocean on tropical cyclones and associated rainfall. Our sensitivity experiments demonstrate that the observed warm SSTAs had the potential to displace the rainfall caused by Hagibis inland and thereby acted to increase precipitation along the Pacific coast of northeastern Japan. Our results suggest that midlatitude SSTAs on ocean-eddy scales can also influence the synoptic-scale atmospheric front and associated heavy rainfall.</p>

収録刊行物

  • SOLA

    SOLA 17A (Special_Edition), 21-28, 2021

    公益社団法人 日本気象学会

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