Interaction between the Land Surface and Atmosphere : Effect of Mesoscale Surface Heterogeneity on the Convective Boundary Layer

ISBN-13: 9783639113389 / Angielski / Miękka / 2009 / 232 str.

Song-Lak Kang

Opis

New insight is obtained into the structure of theconvective atmospheric boundary layer(CBL) over surface heat flux variation on a scale ofthe order of 10 km. Aircraft data collected duringthe International H2O Project (IHOP_2002) and largeeddy simulation (LES) are used. The new insight includes the followings: First, the CBL changes from a quasi-stationarystate to a non-stationary state when forced by ahigh-amplitude surface heat flux variation. Second, the structure of the CBL in anon-stationary state cannot be described with themixed-layer similarity. Third, moisture advection by thesurface-heterogeneity-induced mesoscale horizontalflows plays a significant role in initiating moistconvection.

O autorze

2008-Present Postdoctotal Fellow, National Center for Atmospheric
Research - Advanced Study Program
2003-2007 Research Assistant, PSU
1996-2001 Staff, Korea Meteorological Administration
2007 Ph.D. Pennsylvania State University (PSU), University Park,
U.S.A.
1998 M.S., 1992 B.S. Yonsei University,Seoul,Korea