MISC

2008年6月

Classification of tropical precipitating systems using wind profiler spectral moments. Part II: Statistical characteristics of rainfall systems and sensitivity analysis

JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
  • T. Narayana Rao
  • ,
  • N. V. P. Kirankumar
  • ,
  • B. Radhakrishna
  • ,
  • D. Narayana Rao
  • ,
  • K. Nakamura

25
6
開始ページ
898
終了ページ
908
記述言語
英語
掲載種別
DOI
10.1175/2007JTECHA1032.1
出版者・発行元
AMER METEOROLOGICAL SOC

An automated precipitation algorithm to classify tropical precipitating systems has been described in a companion paper (Part I). In this paper, the algorithm has been applied to 18 months of lower atmospheric wind profiler measurements to study the vertical structure and statistical features of different types of tropical precipitating systems over Gadanki, India. The shallow precipitation seems to be an important component of tropical precipitation, because it is prevalent for about 23% of the observations, with a rainfall fraction of 16%. As expected, the deep convective systems contribute maximum (60%) to the total rainfall, followed by transition and stratiform precipitation. Nonprecipitating clouds (clouds associated with no surface rainfall) are predominant in transition category, indicating that evaporation of precipitation is significant in this region. The quantitative rainfall statistics in different precipitation regimes are compared and contrasted between themselves and also with those reported at different geographical locations obtained with a wide spectrum of instruments, from rain gauges to profilers and scanning radars. The results herein agree with the reports based on scanning radar measurements but differ from profiler-based statistics. The discrepancies are discussed in light of differences in classification schemes, variation in geographical conditions, etc. The sensitivity of the algorithm on the choice of thresholds for identifying different types of precipitating systems is also examined.

リンク情報
DOI
https://doi.org/10.1175/2007JTECHA1032.1
CiNii Articles
http://ci.nii.ac.jp/naid/80019623530
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000256468400005&DestApp=WOS_CPL
ID情報
  • DOI : 10.1175/2007JTECHA1032.1
  • ISSN : 0739-0572
  • CiNii Articles ID : 80019623530
  • Web of Science ID : WOS:000256468400005

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