DOI: 10.1175/JCLI-D-13-00628.1
Scopus记录号: 2-s2.0-84903397428
论文题名: Robust observational quantification of the contribution of mesoscale convective systems to rainfall in the tropics
作者: Roca R. ; Aublanc J. ; Chambon P. ; Fiolleau T. ; Viltard N.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 13 起始页码: 4952
结束页码: 4958
语种: 英语
Scopus关键词: Rain
; Satellites
; Soil moisture
; Storms
; Tropics
; Climate classification/regimes
; Convective storms
; Hydrometeorology
; Meso-scale systems
; Water budget
; Budget control
; climate classification
; convective system
; hydrometeorology
; mesoscale meteorology
; numerical model
; rainfall
; tropical region
; water budget
英文摘要: Satellite estimation of precipitation and satellite-derived statistics of mesoscale convective systems (MCS) are analyzed conjunctively to quantify the contribution of the various types of MCS to the water budget of the tropics. This study focuses on two main mesoscale characteristics of the systems: duration and propagation. Overall, the systems lasting more than 12 h are shown to account for around 75% of the tropical rainfall, and 60% of the rainfall is due to systems traveling more than 250 km, a typical GCM grid. A number of regional features are also revealed by factoring in the convective systems' morphological parameters in the water budget computation. These findings support the challenging effort to account for such mesoscale features when considering the theory on the future evolution of the water budget as well as the physical parameterizations of climate models. Finally, this analysis provides a simple metric for evaluating high-resolution numerical simulations of the tropical water budget. Furthermore, results are shown to be robust to the selection of the satellite rainfall products. © 2014 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51265
Appears in Collections: 气候变化事实与影响
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作者单位: Laboratoire d'Etudes en Géophysique et Océanographie Spatiales, Toulouse, France; Centre National de la Recherche Météorologique-GAME, Ḿetéo-France and CNRS, Toulouse, France; Centro Nacional de Monitoramento e Alertas de Desastres Naturais (CEMADEN), Cachoeira Paulista, São Paulo, Brazil; Laboratoire Atmosphéres, Milieux, Observations Spatiales, UVSQ, IPSL/CNRS, Vélizy, France
Recommended Citation:
Roca R.,Aublanc J.,Chambon P.,et al. Robust observational quantification of the contribution of mesoscale convective systems to rainfall in the tropics[J]. Journal of Climate,2014-01-01,27(13)