請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/16684
標題: | 熱帶對流的垂直結構與降雨強度 Vertical Structures Associated with Tropical Convection and Precipitation Intensity |
作者: | Chiung-Yin Chang 張瓊尹 |
指導教授: | 林和,周佳 |
關鍵字: | 熱帶對流,垂直結構,對流回饋過程,降雨強度,極端降雨, tropical convection,vertical structure,convective feedback,precipitation intensity,precipitation extreme, |
出版年 : | 2014 |
學位: | 碩士 |
摘要: | Vertical structures associated with tropical convection are of vital importance to tropical climate and weather phenomena, especially the convective feedbacks to large-scale environment as manifested by them. In this thesis, we explore their relationship with precipitation intensity. We first propose a simple diagnostic framework to assess these profiles in ERA-Interim, in order to remedy previous studies’ deficiencies. By considering these profiles with multiple perspectives, we discuss the prominent characteristics of deep and shallow convection, as well as the corresponding variations in large-scale flows. We then shift our focus to their roles in the intensity changes of precipitation extremes. We find that under interannual tropical tropospheric warming, extreme rainfall strengthens due to enhanced moisture convergence and reduced gross moist stability. Analyzing the vertical structures of moist static energy and vertical motion, we argue that both a decrease of deep convective energy transport via enhanced low-level moisture and increase of shallow convection partitioning can account for these changes. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/16684 |
全文授權: | 未授權 |
顯示於系所單位: | 大氣科學系 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-103-1.pdf 目前未授權公開取用 | 2.23 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。