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Spatial distributions of rainfall intensity maxima in intense tropical cyclones from the TRMM Multi-satellite Precipitation Analysis (TMPA) data.

机译:根据TRMM多卫星降水分析(TMPA)数据,在强热带气旋中降雨强度最大值的空间分布。

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摘要

The magnitudes of localized rain rate maxima (RM) and the extreme rainfall of the RM in intense (categories 3 -- 5) tropical cyclones' (TCs') inner region are investigated by using the version 6 of the Tropical Rainfall Measuring Mission (TRMM) Multi-satellite Precipitation Analysis (TMPA) dataset during 1998 -- 2010. The RM modes range between 4.5 -- 8.5 mm h-1. The empirical distribution functions increase with TC category. However, there is no clear dominance for either the eyewall or the inner rainband within each category. The descending order of RM≥25 mm h-1 probability (P25) for the six major ocean basins is as follows: North Indian Ocean, Atlantic Ocean, Northwest Pacific, South Pacific, South Indian Ocean, and east-central Pacific. The six major basins are further divided into twenty-nine sub-basins to discern regional variability of extreme RM. Sub-basins with high P25 include the Bay of Bengal, the South Philippine Sea, the East China Sea, the north coast of Australia, southeast Melanesia, and northwest Atlantic. Sub-basins with a higher proportion of CAT5 observations than CAT3 observations tend to have a higher P25 beyond 60 km from the storm center than within the 60-km radius.
机译:使用热带雨量测量任务(TRMM)的第6版调查了强烈(3-5级)热带气旋(TCs)内部区域的局部降雨率最大值(RM)的大小和RM的极端降雨)1998年至2010年之间的多卫星降水分析(TMPA)数据集。RM模式范围为4.5-8.5 mm h-1。经验分布函数随TC类别增加。但是,每个类别中的眼墙或内部雨带都没有明显的优势。六个主要海盆RM≥25mm h-1概率(P25)的降序如下:北印度洋,大西洋,西北太平洋,南太平洋,南印度洋和中东部太平洋。六个主要盆地被进一步划分为29个子盆地,以识别极端RM的区域变化。 P25高的子盆地包括孟加拉湾,南菲律宾海,东中国海,澳大利亚的北海岸,美拉尼西亚东南部和西北大西洋。与CAT3观测值相比,CAT5观测值比例更高的子流域的P25往往比距风暴中心60 km半径内的P25更高。

著录项

  • 作者

    Chang, Ian.;

  • 作者单位

    Northern Illinois University.;

  • 授予单位 Northern Illinois University.;
  • 学科 Atmospheric Sciences.
  • 学位 M.S.
  • 年度 2012
  • 页码 105 p.
  • 总页数 105
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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