DOI: 10.1175/JCLI-D-13-00592.1
Scopus记录号: 2-s2.0-84901824819
论文题名: Characteristics of precipitation features and annual rainfall during the TRMM era in the central Andes
作者: Mohr K.I. ; Slayback D. ; Yager K.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 11 起始页码: 3982
结束页码: 4001
语种: 英语
Scopus关键词: Rain gages
; Brightness temperatures
; Cloud-top temperatures
; Convective systems
; Cumulative distribution function
; Shallow convection
; Surface observation
; Tropical rainfall measuring missions
; University of Utah
; Rain
; arid environment
; atmospheric convection
; brightness temperature
; convective system
; precipitation assessment
; rainfall
; TRMM
; Andes
英文摘要: The central Andes extends from 7° to 21°S, with its eastern boundary defined by elevation (1000m and greater) and its western boundary by the coastline. The authors used a combination of surface observations, reanalysis, and the University of Utah Tropical Rainfall Measuring Mission (TRMM) precipitation features (PF) database to understand the characteristics of convective systems and associated rainfall in the central Andes during the TRMM era, 1998-2012. Compared to other dry (West Africa), mountainous (Himalayas), and dynamically linked (Amazon) regions in the tropics, the central Andes PF population was distinct from these other regions, with small and weak PFs dominating its cumulative distribution functions and annual rainfall totals. No more than 10% of PFs in the central Andes met any of the thresholds used to identify and define deep convection (minimum IR cloud-top temperatures, minimum 85-GHz brightness temperature, maximum height of the 40-dBZ echo). For most of the PFs, available moisture was limited (<35mm) and instability low ((<500 J kg-1). The central Andes represents a largely stable, dry to arid environment, limiting system development and organization. Hence, primarily short-duration events ((<60 min) characterized by shallow convection and light to light-moderate rainfall rates (0.5-4.0mmh-1) were found. © 2014 American Meteorological Society. 资助项目: NOAA, National Oceanic and Atmospheric Administration
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51190
Appears in Collections: 气候变化事实与影响
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作者单位: Mesoscale Atmospheric Processes Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Biospheric Sciences Laboratory, NASA Goddard Space Flight Center, Science Systems and Applications, Inc., Greenbelt, MD, United States
Recommended Citation:
Mohr K.I.,Slayback D.,Yager K.. Characteristics of precipitation features and annual rainfall during the TRMM era in the central Andes[J]. Journal of Climate,2014-01-01,27(11)