DOI: 10.1002/grl.50651
论文题名: TRMM precipitation bias in extreme storms in South America
作者: Rasmussen K.L. ; Choi S.L. ; Zuluaga M.D. ; Houze Jr. R.A.
刊名: Geophysical Research Letters
ISSN: 0094-8824
EISSN: 1944-8555
出版年: 2013
卷: 40, 期: 13 起始页码: 3457
结束页码: 3461
语种: 英语
英文关键词: deep convection
; precipitation
; South America
; TRMM
Scopus关键词: Convective storms
; Deep convection
; Hydrological cycles
; Precipitation radar
; South America
; TRMM
; Tropical rainfall measuring missions
; Tropical regions
; Algorithms
; Natural convection
; Precipitation (chemical)
; Rain gages
; Storms
; Tropics
; Rain
; algorithm
; convective system
; extreme event
; hydrological cycle
; precipitation (climatology)
; storm surge
; subtropical region
; TRMM
; tropical region
; South America
英文摘要: Deep convective storms in subtropical South America are some of the most intense in the world, and the hydrological cycle plays an important role in both tropical and subtropical South America. Recent studies have suggested that the Tropical Rainfall Measuring Mission (TRMM) precipitation radar algorithm significantly underestimates surface rainfall in deep convection over land. This study investigates the range of the rain bias in storms containing four different types of extreme radar echoes: deep convective cores, deep and wide convective cores, wide convective cores, and broad stratiform regions over South America. Storms with deep convective cores show the greatest underestimation, and the bias is unrelated to their echo top height. The bias in wide convective cores relates to the echo top, indicating that storms with significant mixed phase and ice hydrometeors are similarly affected by assumptions in the TRMM algorithm. The relationship between storm type and rain bias remains similar in both subtropical and tropical regions. Key Points TRMM rain algorithm biases various types of extreme storms, not just deep ones Rain biases from deep convection are greater than wide convection or stratiform Convection containing significant precipitation ice is the most underestimated ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880830350&doi=10.1002%2fgrl.50651&partnerID=40&md5=90d9b733b79e1c9413dec29865c2a391
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6088
Appears in Collections: 气候减缓与适应
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作者单位: Department of Atmospheric Sciences, University of Washington, Box 351640, Seattle, WA 98195, United States
Recommended Citation:
Rasmussen K.L.,Choi S.L.,Zuluaga M.D.,et al. TRMM precipitation bias in extreme storms in South America[J]. Geophysical Research Letters,2013-01-01,40(13).