Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/qj.903 |
Initiation of daytime local convection in a semi-arid region analysed with high-resolution simulations and AMMA observations | |
Couvreux, F.1; Rio, C.2; Guichard, F.; Lothon, M.3; Canut, G.3; Bouniol, D.; Gounou, A. | |
通讯作者 | Couvreux, F. |
来源期刊 | QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
![]() |
ISSN | 0035-9009 |
EISSN | 1477-870X |
出版年 | 2012 |
卷号 | 138期号:662页码:56-71 |
英文摘要 | A modelling case study designed from observations from the African Monsoon Multidisciplinary Analysis (AMMA) is presented and discussed. It aims at investigating the issue of initiation of convection in a semi-arid environment. This case corresponds to the development of local daytime convection mainly controlled by boundary layer characteristics rather than by atmospheric synoptic scales. A high-resolution three-dimensional simulation is presented and extensively evaluated against the numerous observations available for 10 July 2006 from the AMMA campaign. The simulation, run over a domain of 100 x 100 km, is able to represent main boundary layer structures and processes leading to deep convection initiation as well as the formation of density currents. Sensitivity tests point to the key role of the sensible heat flux, the humidity of low to mid levels, the lapse rate at low levels and of a mesoscale ascent to initiate deep convection in those semi-arid conditions, while evaporation of precipitation is shown to play a minor role. This study thus provides a case to investigate the ability of parametrizations to handle the initiation of convection in a semi-arid environment. Copyright (C) 2011 Royal Meteorological Society |
英文关键词 | convective initiation diurnal cycle semi-arid conditions shallow to deep convection transition West African monsoon |
类型 | Article |
语种 | 英语 |
国家 | France |
收录类别 | SCI-E |
WOS记录号 | WOS:000299372800004 |
WOS关键词 | LARGE-EDDY SIMULATIONS ; DIURNAL CYCLE ; BOUNDARY-LAYER ; CUMULUS CONVECTION ; DEEP CONVECTION ; MOIST CONVECTION ; AFRICAN MONSOON ; SUMMER MONSOON ; WEST-AFRICA ; PART I |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/174653 |
作者单位 | 1.Meteo France, GMME, CNRS, CRNM GAME, F-31057 Toulouse, France; 2.CNRS, Meteorol Dynam Lab, Paris, France; 3.CNRS, Lab Aerol, Observ Midi Pyrenees, Toulouse, France |
推荐引用方式 GB/T 7714 | Couvreux, F.,Rio, C.,Guichard, F.,et al. Initiation of daytime local convection in a semi-arid region analysed with high-resolution simulations and AMMA observations[J],2012,138(662):56-71. |
APA | Couvreux, F..,Rio, C..,Guichard, F..,Lothon, M..,Canut, G..,...&Gounou, A..(2012).Initiation of daytime local convection in a semi-arid region analysed with high-resolution simulations and AMMA observations.QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY,138(662),56-71. |
MLA | Couvreux, F.,et al."Initiation of daytime local convection in a semi-arid region analysed with high-resolution simulations and AMMA observations".QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY 138.662(2012):56-71. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。