大气科学2012，Vol.36Issue(1)：117-129,13.
加热和水汽对两例高原低涡影响的数值试验
Numerical Simulation of the Effect of Heating and Water Vapor on Two Cases of Plateau Vortex
摘要
Abstract
By using the satellite Temperature of Brightness Blackbody (TBB) data, NCEP 1°× 1° reanalysis data, and nonhydrostatic mesoscale numerical model MM5, control experiment and six sensitivity experiments which are adiabatic, no surface sensible heating, double surface sensible heating, no evaporation effect, no latent heat of condensation, and no water vapor, are performed for two cases of plateau vortex occurring during 28 - 29 July 2005 and 29 - 31 July 2009, and the happening, development, and structure change of the plateau vortex during 28- 29 July 2005 are mainly discussed. The results show that the vortex center and the vortex structure at 500 hPa simulated in the control experiment are the same as actuality. The adiabatic conditions affect the formation, development and structure change of the vortex most remarkably. The latent heat of condensation and the water vapor do not play decisive roles in formation of the vortex, but play key roles in vortex maintenance and structure characteristics evolve-ment Surface latent heat has some effect on the development of the vortex, and no surface latent heat slightly decreases the strength of the vortex. The effect of surface sensible heat on the vortex is different for different cases, and depends on the developing stage of the vortex, and also that the developing stage is daytime or night关键词
高原低涡/数值试验/加热/水汽/结构/影响Key words
plateau vortex/numerical simulation/heating/water vapor/structure characteristics/effect分类
天文与地球科学引用本文复制引用
宋雯雯,李国平,唐钱奎..加热和水汽对两例高原低涡影响的数值试验[J].大气科学,2012,36(1):117-129,13.基金项目
国家自然科学基金资助项目40875023,财政部、科技部公益性行业(气象)科研专项GYHY201006014,灾害天气国家重点实验室开放课题重点项目2009LASW-A01 （气象）
