臺風登陸后非對稱降水的非地轉(zhuǎn)濕Q矢量研究

doi:10.3969/2012jms.00**

首頁 > 過刊瀏覽>2011年第卷第6期 >710-717. DOI:10.3969/2012jms.00**

臺風登陸后非對稱降水的非地轉(zhuǎn)濕Q矢量研究
DOI:
                        10.3969/2012jms.00**
                    
CSTR:
                        
                    
作者:
                        
                        
                    
作者單位:
作者簡介:
通訊作者:
中圖分類號:P458.124
基金項目:

Ageostrophic wet Q-vector study on asymmetric precipitation after typhoon landing

Author:

Affiliation:

Fund Project:

摘要

圖/表

訪問統(tǒng)計

參考文獻

相似文獻

引證文獻

資源附件

文章評論

摘要:

利用NCEP再分析資料和熱帶降水測量衛(wèi)星資料，采用改進后考慮非絕熱加熱的非地轉(zhuǎn)濕Q矢量理論，對“0907”號熱帶風暴“天鵝”登陸后非對稱降水特征進行研究。結(jié)果表明：（1）臺風登陸后雨帶出現(xiàn)斷裂，降水呈現(xiàn)明顯非對稱性特征，強降水主要位于第二象限；（2）非地轉(zhuǎn)濕Q矢量散度分布較好描述了臺風登陸后降水的非對稱性，與降水的分布有較好的對應關(guān)系，強降水主要位于濕Q矢量散度梯度的大值區(qū)；（3）沿臺風移動方向上，非地轉(zhuǎn)濕Q矢量輻合、輻散交替分布構(gòu)成雨區(qū)內(nèi)的垂直環(huán)流結(jié)構(gòu)，其中傾斜上升支的非對稱結(jié)構(gòu)，造成了降水的非對稱性；（4）經(jīng)過臺風中心存在緯向的次級環(huán)流，對降水起抑制作用，其東西向的不對稱結(jié)構(gòu)有利于降水的非對稱性發(fā)展；（5）非絕熱加熱項有利于加強降水的非對稱性特征。

Abstract:

Based on the improved ageostrophic wet Q-vector theory taking into account the role of diabatic heating, asymmetric precipitation after landing of typhoon Koni (0907) was studied by using the NCEP reanalysis data and tropical rainfall measuring mission (TRMM) satellite data. The results indicate as follows: (1) The rainband breaking occurred after typhoon landing. The precipitation distribution was asymmetric and the heavy rain occurred at the second quadrant. (2) The ageostrophic wet Qvector divergence can be used to describe the asymmetry of precipitation and its relation to precipitation. Heavy rain mainly occurred in the area of the high divergence gradient of ageostrophic wet Q-vector. (3) Along the direction of typhoon movement, the vertical circulation existed in rain area due to alternating of convergence and divergence of ageostrophic wet Q-vector. The asymmetric precipitation occurred due to the asymmetric structure of tilt upward current which existed in the vertical circulation. (4) There was a latitudinal secondary circulation across the typhoon center which had played a role in inhibiting precipitation. The transmeridional asymmetric structure in the latitudinal secondary circulation was in favor of the development of the asymmetric precipitation. (5) Diabatic heating was in favor of enhancing the asymmety of precipitation.

參考文獻

相似文獻

引證文獻

引用本文

張亞洲,梅華,鄧文彬,楊愛玲.臺風登陸后非對稱降水的非地轉(zhuǎn)濕Q矢量研究.氣象科學,2011,(6):710-717 ZHANG Yazhou, MEI Hua, DENG Wenbin, YANG Ailing. Ageostrophic wet Q-vector study on asymmetric precipitation after typhoon landing. Journal of the Meteorological Sciences,2011,(6):710-717

復制

文章指標

點擊次數(shù):
下載次數(shù):
HTML閱讀次數(shù):
引用次數(shù):

歷史

收稿日期:2010-07-06
最后修改日期:
錄用日期:
在線發(fā)布日期: 2012-05-17
出版日期:

文章二維碼

您是第位訪問者
氣象科學 ® 2026 版權(quán)所有
技術(shù)支持：北京勤云科技發(fā)展有限公司

抽查舔水白紧大视频,冲喜娘子超甜哒激情五月,亚洲黄色图片偷拍网站,亚洲三级黄片免费播放,91在线观看喷潮红桃,日韩精品在线观看一区二区,久久久久久久久久久久黄色片子,日产精品99久久久久久久久,欧洲亚洲另类图片小说

引用本文

分享

相關(guān)視頻

文章指標

歷史

文章二維碼

抽查舔水白紧大视频,冲喜娘子超甜哒 激情五月,亚洲黄色图片偷拍网站,亚洲三级黄片免费播放,91在线观看喷潮红桃,日韩精品在线观看一区二区,久久久久久久久久久久黄色片子,日产精品99久久久久久久久,欧洲亚洲另类图片小说

引用本文

分享

相關(guān)視頻

文章指標

歷史

文章二維碼

抽查舔水白紧大视频,冲喜娘子超甜哒激情五月,亚洲黄色图片偷拍网站,亚洲三级黄片免费播放,91在线观看喷潮红桃,日韩精品在线观看一区二区,久久久久久久久久久久黄色片子,日产精品99久久久久久久久,欧洲亚洲另类图片小说