DOI: 10.1029/2017JD028125
Scopus记录号: 2-s2.0-85052379035
论文题名: Impact of the Generation and Activation of Sea Salt Aerosols on the Evolution of Tropical Cyclone Dumile
作者: Hoarau T. ; Barthe C. ; Tulet P. ; Claeys M. ; Pinty J.-P. ; Bousquet O. ; Delanoë J. ; Vié B.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 16 起始页码: 8813
结束页码: 8831
语种: 英语
英文关键词: microphysics
; sea salt aerosols
; tropical cyclones
英文摘要: An original coupling between an aerosol scheme and a two-moment microphysics scheme has been developed in the cloud-resolving model Meso-NH to fully represent the aerosol-microphysics-dynamics interactions in tropical cyclones. A first evaluation of this coupling is performed through the simulation of tropical cyclone Dumile (2013) in the South-West Indian Ocean. MACC (Monitoring Atmospheric Composition and Climate project) analysis and CALIPSO (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations) data agree about the predominance of sea salt aerosols. The aerosol-microphysics coupled system reproduces the track and intensity of Dumile well, with a transition from a monsoon depression to a tropical cyclone, and produces ice water contents that compare well with the DARDAR (raDAR/liDAR) product. Using a one-moment microphysics scheme produces a more intense and symmetric system tracking too far to the west. In the aerosol-microphysics coupled simulation, sea salt aerosols, the main source of cloud condensation nuclei (CCN), are preferentially produced in regions with high winds and waves, which reinforce convective asymmetries compared to the simulation with the one-moment scheme. Using a two-moment microphysics scheme without explicit sea salt emission led to a dramatic weakening of Dumile after 24 hr of simulation due to the consumption and scavenging of all interstitial CCN in the inner core. The importance of explicitly taking account of sea salt aerosol emissions associated with high winds and waves in tropical cyclones is a critical point for simulating long-lasting systems that need to generate their own CCN. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113251
Appears in Collections: 气候减缓与适应
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作者单位: Laboratoire de l'Atmosphère et des Cyclones, UMR 8105 CNRS/Météo-France/Université de La Réunion, Saint Denis, France; Laboratoire d'Aérologie, UMR 5560 CNRS/Université de Toulouse, Toulouse, France; LATMOS/IPSL/UVSQ/CNRS, Guyancourt, France; Centre National de Recherches Météorologiques, UMR 3589 Météo-France/CNRS, Toulouse, France
Recommended Citation:
Hoarau T.,Barthe C.,Tulet P.,et al. Impact of the Generation and Activation of Sea Salt Aerosols on the Evolution of Tropical Cyclone Dumile[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(16)