2017年蘇南一次特大暴雨高分辨率模擬及特征分析

doi:10.12306/2020jms.0051

首頁(yè) > 過(guò)刊瀏覽>2021年第41卷第3期 >386-397. DOI:10.12306/2020jms.0051

2017年蘇南一次特大暴雨高分辨率模擬及特征分析
DOI:
                        10.12306/2020jms.0051
                    
CSTR:
                        
                    
作者:
                        
                        
                    
作者單位:
作者簡(jiǎn)介:
通訊作者:
中圖分類號(hào):P458.3
基金項(xiàng)目:國(guó)家自然科學(xué)基金資助項(xiàng)目（G41805016；G41805070）；江蘇省"333工程"科研項(xiàng)目資助計(jì)劃項(xiàng)目（BRA2014374；BRA2018100）；江蘇省自然科學(xué)基金資助項(xiàng)目（BK20170940；BK20160954）；氣象災(zāi)害教育部重點(diǎn)實(shí)驗(yàn)室（南京信息工程大學(xué)）開(kāi)放課題（KLME201807；KLME201808）；高原與盆地暴雨旱澇災(zāi)害四川省重點(diǎn)實(shí)驗(yàn)室開(kāi)放研究基金項(xiàng)目（SZKT201901）；中國(guó)氣象局沈陽(yáng)大氣環(huán)境研究所和東北冷渦研究重點(diǎn)開(kāi)放實(shí)驗(yàn)室聯(lián)合開(kāi)放基金項(xiàng)目（2020SYIAE07）；北極閣開(kāi)放研究基金—南京大氣科學(xué)聯(lián)合研究中心項(xiàng)目（NJCAR2018ZD03）

Characteristics and simulation of a torrential rainstorm over southern Jiangsu in 2017 revealed by a high-resolution numerical model

Author:

Affiliation:

Fund Project:

摘要

圖/表

訪問(wèn)統(tǒng)計(jì)

參考文獻(xiàn)

相似文獻(xiàn)

引證文獻(xiàn)

資源附件

文章評(píng)論

摘要:

利用高分辨率（水平3 km）數(shù)值模式，結(jié)合FNL分析及預(yù)報(bào)場(chǎng)資料、地面加密自動(dòng)站觀測(cè)資料和多普勒雷達(dá)資料，對(duì)2017年6月9—10日蘇南一次因江淮氣旋沿切變線東移造成的特大暴雨過(guò)程進(jìn)行研究。首先對(duì)模式模擬結(jié)果做了降水、風(fēng)場(chǎng)等多方面的驗(yàn)證，隨后利用模擬結(jié)果和觀測(cè)資料對(duì)該特大暴雨過(guò)程的對(duì)流系統(tǒng)結(jié)構(gòu)及其發(fā)展維持機(jī)制進(jìn)行分析。結(jié)果表明：（1）高分辨率模式能較客觀地反映該暴雨過(guò)程諸多大氣參數(shù)的演變。（2）特大暴雨過(guò)程中鋒面氣旋東移且傾斜發(fā)展，深對(duì)流中心維持在氣旋的東南方向，該中尺度對(duì)流系統(tǒng)的發(fā)生發(fā)展與鋒面氣旋的上述演變密切相關(guān)。（3）特大暴雨過(guò)程中相應(yīng)的對(duì)流處于旺盛階段時(shí)，大氣不穩(wěn)定能量持續(xù)釋放，中層為相對(duì)較高的假相當(dāng)位溫區(qū)，即明顯的暖心結(jié)構(gòu)，垂直上升運(yùn)動(dòng)最強(qiáng)，且其南北兩側(cè)均有下沉氣流，形成中尺度次級(jí)環(huán)流，維持強(qiáng)對(duì)流不斷發(fā)展。（4）超低空急流的持續(xù)增強(qiáng)，沿低層切變線上不斷有γ中尺度渦旋生成和足夠的低層輻合區(qū)厚度是導(dǎo)致這次特大暴雨過(guò)程的關(guān)鍵因素。

Abstract:

By using the high-resolution (3 km horizontally) numerical model, combined with FNL analysis and forecast data, automatic weather station data, and Doppler radar data, the torrential rainstorm caused by a Jianghuai cyclone moving eastward along the shear line in southern Jiangsu from 9 to 10 June 2017 was studied. Firstly, the numerical results were verified for various fields including the precipitation and wind, and then the structure of convective system of the torrential rainstorm process and its mechanism of development and maintenance were analyzed with the numerical simulation results as well as observation data. Results indicate that (1) the high-resolution model is able to describe the evolution of many atmospheric parameters during the rainstorm objectively. (2) The frontal cyclone moves eastward and inclines during the torrential rainstorm, and the deep convective center maintains in the southeastern direction of the cyclone. Therefore, the occurrence and development of mesoscale convective system are closely related to the above evolution of the frontal cyclone. (3) When the convection related to the torrential rainstorm is at its vigorous stage, the atmospheric unstable energy is continuously released, while the middle layer is a relatively high pseudo-equivalent potential temperature zone, that is, an obvious warm core structure, where the vertical upward motion is the strongest and downdraft exists on both the north and south sides, forming mesoscale secondary circulations and maintaining the continuous development of the strong convection. (4) The continuous strengthening of the ultra-low level jet, the generation of γ mesoscale vortices along the sides of low sheers together with sufficient depths of the low convergence are the key factors for the existence of the torrential rainstorm event.

參考文獻(xiàn)

相似文獻(xiàn)

引證文獻(xiàn)

引用本文

張冰,鄭媛媛,沈菲菲,曾明劍,王元直.2017年蘇南一次特大暴雨高分辨率模擬及特征分析.氣象科學(xué),2021,41(3):386-397 ZHANG Bing, ZHENG Yuanyuan, SHEN Feifei, ZENG Mingjian, WANG Yuanzhi. Characteristics and simulation of a torrential rainstorm over southern Jiangsu in 2017 revealed by a high-resolution numerical model. Journal of the Meteorological Sciences,2021,41(3):386-397

復(fù)制

文章指標(biāo)

點(diǎn)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:2020-03-12
最后修改日期:
錄用日期:
在線發(fā)布日期: 2021-07-05
出版日期:

文章二維碼

您是第位訪問(wèn)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