Marine Atmospheric Boundary Layers Associated with Summer Monsoon Onset over the South China Sea in 1998

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Dong-Xiao WANG
  • Wen ZHOU
  • Xiao-Li YU
  • Qiang XIE
  • Xin WANG

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)263-270
Journal / PublicationAtmospheric and Oceanic Science Letters
Volume3
Issue number5
Publication statusPublished - 16 Sept 2010

Abstract

The variations of the marine atmospheric boundary layer (MABL) associated with the South China Sea Summer Monsoon were examined using the Global Positioning System (GPS) sounding datasets obtained four times daily during May-June 1998 on board Research Vessels Kexue 1 and Shiyan 3. The MABL height is defined as the height at the lowest level where virtual potential temperature increases by 1 K from the surface. The results indicate that the MABL height decreased over the northern South China Sea (SCS) and remained the same over the southern SCS, as sea surface temperature (SST) fell for the northern and rose for the southern SCS after the monsoon onset. Over the northern SCS, a decrease in both the SST and the surface latent-heat flux after the onset resulted in a reduction of the MABL height as well as a decoupling of MABL from clouds. It was found that MABL height reduction corresponded to rainfall occurrence. Over the southern SCS, a probable reason for the constant increase of SST and surface heat flux was the rainfall and internal atmospheric dynamics.

Research Area(s)

  • monsoon onset, marine atmospheric boundary layer height, atmosphere internal dynamics, SST

Citation Format(s)

Marine Atmospheric Boundary Layers Associated with Summer Monsoon Onset over the South China Sea in 1998. / WANG, Dong-Xiao; ZHOU, Wen; YU, Xiao-Li et al.
In: Atmospheric and Oceanic Science Letters, Vol. 3, No. 5, 16.09.2010, p. 263-270.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review