熱帶氣旋“利奇馬”(1909)暖心演變分析及變性過程探討

doi:10.3969/2019jms.0077

首頁 > 過刊瀏覽>2020年第40卷第1期 >53-64. DOI:10.3969/2019jms.0077

熱帶氣旋“利奇馬”(1909)暖心演變分析及變性過程探討
DOI:
                        10.3969/2019jms.0077
                    
CSTR:
                        
                    
作者:
                        
                        
                    
作者單位:
作者簡介:
通訊作者:
中圖分類號:P458.1
基金項目:江蘇省自然基金資助項目（BK20161603）；國家自然科學(xué)基金資助項目（41575010；41575070）；中國氣象局預(yù)報員專項（CMAYBY-2018-028）

Analysis on warm core variation and extratropical transition of tropical cyclone “Lekima”(1909)

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 GDAS/FNL再分析數(shù)據(jù)，根據(jù)TFP（Thermal Front Parameter）參數(shù)和鋒生函數(shù)，對1909號熱帶氣旋"利奇馬"生命史中各主要階段暖心特征和變性過程進行了診斷分析。結(jié)果表明："利奇馬"強度為熱帶風(fēng)暴時，其暖心結(jié)構(gòu)較為松散，500 hPa以上和600 hPa以下分別存在一個最強中心，在強度減弱階段上下層暖心均偏離氣旋中心；當(dāng)其強度升至強熱帶風(fēng)暴及以上級別時，低層暖心消失，高層暖心顯著增強，結(jié)構(gòu)變得緊湊，氣旋中心上空暖區(qū)呈棒槌狀分布。高層暖心強度與"利奇馬"強度呈正相關(guān)，當(dāng)"利奇馬"維持超強臺風(fēng)時，其暖心可達10~14℃。"利奇馬"與中緯度西風(fēng)槽接觸后，冷空氣開始自對流層中低層進入其環(huán)流，低層冷空氣入侵的程度比中層更明顯；低層暖心被冷空氣侵蝕而消失，高層暖心則逐漸減弱，結(jié)構(gòu)亦變得松散。TFP參數(shù)和鋒生函數(shù)計算結(jié)果表明受冷空氣影響，"利奇馬"斜壓性逐漸增強，其中心西北側(cè)形成一支暖鋒，逐漸變性為溫帶氣旋，但冷鋒未見發(fā)展。變性過程中"利奇馬"高層暖心強度雖減弱但仍然維持，但低層暖區(qū)被冷空氣完全填塞，導(dǎo)致其變性后較快消亡。

Abstract:

The warm core variation and extratropical transition of tropical cyclone "Lekima" (1909) are analyzed based on employing the NCEP GDAS/FNL reanalysis data and TFP(Thermal Front Parameter) and frontogenesis function. The results show that when the intensity of "Lekima" is a tropical storm, its warm core structure is loose. Two warm cores locate at above 500 hPa and below 600 hPa respectively and they deviate from the cyclone center during decay stage of "Lekima". However when its intensity rises to the level of a strong tropical cyclone and above, its low (high) level warm core vanishes (enhances) significantly. The high level warm core structure becomes compact and the warmer area above cyclone center is club-shaped distributing. The temperature anomaly of high level warm core positively correlates with "Lekima" intensity. When "Lekima" maintains at the super strong typhoon stage, its warm core could reach 10-14℃. The cold air intrusion occurs in low and middle level of "Lekima" after its connection with westerly trough, and low level intrusion is more significant than that in the middle level. The warm area in low level vanishes completely while the high level warm core weakens because of cold air intrusion. The calculation of TFP and frontogenesis function indicates that a warm front forms on the northwest side of "Lekima" forms while cold front does not develop. "Lekima" transforms to an extratropical cyclone which decays quickly after transition because that warm area in its low level is completely eroded by cold air.

參考文獻

相似文獻

引證文獻

引用本文

沈陽,吳海英,孫燕,呂潤清.熱帶氣旋“利奇馬”(1909)暖心演變分析及變性過程探討.氣象科學(xué),2020,40(1):53-64 SHEN Yang, WU Haiying, SUN Yan, LYU Runqing. Analysis on warm core variation and extratropical transition of tropical cyclone “Lekima”(1909). Journal of the Meteorological Sciences,2020,40(1):53-64

復(fù)制

文章指標(biāo)

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:2019-09-24
最后修改日期:2019-11-04
錄用日期:
在線發(fā)布日期: 2020-03-16
出版日期:

文章二維碼

您是第位訪問者
氣象科學(xué) ® 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(biāo)

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(biāo)

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