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Intensification of the East Asian summer monsoon lifecycle based on observation and CMIP6

Environmental research letters, 2020-09, Vol.15 (9), p.940 [Peer Reviewed Journal]

2020 The Author(s). Published by IOP Publishing Ltd ;Copyright IOP Publishing Sep 2020 ;ISSN: 1748-9326 ;EISSN: 1748-9326 ;DOI: 10.1088/1748-9326/ab9b3f ;CODEN: ERLNAL

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  • Title:
    Intensification of the East Asian summer monsoon lifecycle based on observation and CMIP6
  • Author: Park, Jina ; Kim, Hyungjun ; Simon Wang, S -Y ; Jeong, Jee-Hoon ; Lim, Kyo-Sun ; LaPlante, Matthew ; Yoon, Jin-Ho
  • Subjects: Amplification ; Climate models ; drought ; East Asian summer monsoon ; ENVIRONMENTAL SCIENCES ; Environmental Sciences & Ecology ; extreme ; flood ; Life cycle analysis ; Meteorology & Atmospheric Sciences ; Monsoons ; Precipitation ; Rainfall ; Rainy season ; Simulation ; Summer ; Water vapor ; Wind
  • Is Part Of: Environmental research letters, 2020-09, Vol.15 (9), p.940
  • Description: Long-term changes in the East Asian summer monsoon (EASM) lifecycle since 1979 are analyzed based on observational datasets and historical simulations of the Coupled Model Intercomparison Project Phase 6 (CMIP6). According to the observation, the active and break phases of EASM have intensified resulting in a shorter but stronger rainy season, followed by a longer dry spell. This intensification in the active-phase precipitation is accompanied by increased lower tropospheric southwesterly wind and subsequent convergence of water vapor flux. These changes are accompanied by the widely reported westward extension of the North Pacific Subtropical High, which has been associated with the warming climate. CMIP6 models generally underestimated the observed intensification of the EASM lifecycle and the monsoon precipitation. However, some of the models did simulate the intensified EASM lifecycle similar to that observed. The result highlights the reasonable performance on EASM shown in some CMIP6 models and those simulations lend support to a dynamically-driven intensification of the EASM lifecycle in the warmer climate.
  • Publisher: Bristol: IOP Publishing
  • Language: English
  • Identifier: ISSN: 1748-9326
    EISSN: 1748-9326
    DOI: 10.1088/1748-9326/ab9b3f
    CODEN: ERLNAL
  • Source: Geneva Foundation Free Medical Journals at publisher websites
    IOPscience (Open Access)
    Institute of Physics IOP eJournals Open Access
    ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
    DOAJ Directory of Open Access Journals

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