DOI: 10.1175/JCLI-D-13-00239.1
Scopus记录号: 2-s2.0-84897633528
论文题名: Dynamic and thermodynamic predictors of vertical structure in radar-observed regional precipitation
作者: Rudolph J.V. ; Friedrich K.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 5 起始页码: 2143
结束页码: 2158
语种: 英语
Scopus关键词: Atmospheric stability
; Environmental parameter
; Generalized linear model
; Geo-potential heights
; Integrated water vapors
; Radar reflectivities
; Thermodynamic variables
; Vertical structures
; Climate change
; Radar
; Storms
; Atmospheric structure
; accuracy assessment
; precipitation (climatology)
; precipitation assessment
; radar
; synoptic meteorology
; thermodynamics
; vertical profile
; water vapor
; Switzerland
英文摘要: Radar-observed vertical structure of precipitation as defined by contoured frequency by altitude diagrams (CFADs) is related to dynamic and thermodynamic environmental parameters. CFADs from 559 storms occurring over the years 2004-11 in the vicinity of Locarno, Switzerland, combined with InterimECMWFRe- Analysis (ERA-Interim) data show that the radar-observed vertical structure of precipitation correlates with synoptic pattern (as defined by 1000- and 500-hPa geopotential heights), integrated water vapor flux, atmospheric stability, and vertical profiles of temperature, moisture, and wind. Following the analysis of vertical structure and environmental parameters, a generalized linear model (GLM) is developed for radar-observed vertical structure as a function of data from ERA-Interim. TheGLMprovides expected values for the vertical extent and magnitude of radar reflectivity and predicts storm vertical structure type with 79% overall accuracy. The relationships found between environmental parameters and storm vertical structure underscore the importance of including both dynamic and thermodynamic variables when evaluating climate change effects on precipitation. In addition, the ability of the GLMto reproduce storm types shows the potential for using GLMs as a link between lower-resolution global model data and high-resolution precipitation observations. © 2014 American Meteorological Society. 资助项目: NSF, National Science Foundation
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50927
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, CO, United States
Recommended Citation:
Rudolph J.V.,Friedrich K.. Dynamic and thermodynamic predictors of vertical structure in radar-observed regional precipitation[J]. Journal of Climate,2014-01-01,27(5)