基于新型觀測(cè)資料分析臺(tái)風(fēng)“煙花”短時(shí)強(qiáng)降水成因

doi:10.12306/2023jms.0072

首頁 > 過刊瀏覽>2024年第44卷第5期 >857-869. DOI:10.12306/2023jms.0072

基于新型觀測(cè)資料分析臺(tái)風(fēng)“煙花”短時(shí)強(qiáng)降水成因
DOI:
                        10.12306/2023jms.0072
                    
CSTR:
                        
                    
作者:
                        
                        
                    
作者單位:
作者簡(jiǎn)介:
通訊作者:
中圖分類號(hào):P407.7
基金項(xiàng)目:中國氣象局創(chuàng)新發(fā)展專項(xiàng)(CXFZ2024J007);江蘇省氣象局面上資助項(xiàng)目(KM202207);江蘇省氣象局青年基金資助項(xiàng)目(KQ202315);浙江省科技計(jì)劃資助項(xiàng)目(2021C35048);南京市氣象自立科研資助項(xiàng)目(NJ202210)

Analysis of short-time heavy precipitation during Typhoon “In-Fa” based on new detection data

Author:

Affiliation:

Fund Project:

摘要

圖/表

訪問統(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:

利用再分析格點(diǎn)資料,風(fēng)廓線雷達(dá)、微波輻射計(jì)、雨滴譜儀、S和X波段雙偏振雷達(dá)等多源探測(cè)資料,分別從形勢(shì)背景和降水精細(xì)結(jié)構(gòu)特征等不同尺度,分析臺(tái)風(fēng)"煙花"造成南京短時(shí)強(qiáng)降水的成因,并探索新型探測(cè)資料在提升短期臨近預(yù)報(bào)能力中的應(yīng)用。結(jié)果表明:(1)有利的氣旋組織結(jié)構(gòu)、環(huán)境風(fēng)場(chǎng)、水汽傳輸、環(huán)流形勢(shì)為短時(shí)強(qiáng)降水產(chǎn)生提供大尺度背景條件。迅速發(fā)展的邊界層急流和強(qiáng)垂直風(fēng)速切變,以及逆溫對(duì)兩者的正反饋?zhàn)饔?觸發(fā)了短時(shí)強(qiáng)降水。增強(qiáng)的水汽密度和云水含量、增厚的飽和濕層,有利于降水的維持。高數(shù)濃度小雨滴經(jīng)暖雨過程后,生成了較低數(shù)濃度、形狀規(guī)則、純液態(tài)的中—大粒徑雨滴,導(dǎo)致雨強(qiáng)的增強(qiáng),回波呈低云頂、低質(zhì)心、較高反射率強(qiáng)度的特征。(2)新型探測(cè)資料對(duì)預(yù)判此次短時(shí)強(qiáng)降水的產(chǎn)生和強(qiáng)度體現(xiàn)出較好指示作用,溫濕風(fēng)廓線提前1.5~4 h表征了風(fēng)暴組織結(jié)構(gòu)的增強(qiáng),微物理參量提前0.5 h預(yù)示了降水的強(qiáng)度和性質(zhì)。(3)X波段雷達(dá)探測(cè)的強(qiáng)降水回波強(qiáng)度弱、范圍小、衰減明顯,但可以獲取邊界層以下云水粒子的微物理特征,與S波段雷達(dá)配合可以有效提升低層的監(jiān)測(cè)能力。

Abstract:

This paper used high-resolution gridded datasets and observation data from a matrix of automatic detection equipment, including national meteorological stations, wind profile radars, microwave radiometer, laser precipitation particle spectrometer, and S-and X-band dual-polarization Doppler radar, to analyze the causes of the short-time heavy precipitation in Nanjing brought on by Typhoon "In-Fa" (2106) from various scales and further discuss the applications of varied detection equipment in improving the capability of short-time forecasts and nowcasting. Results show that: (1) the background circumstances for the generation of short-time heavy precipitation were favorable due to the storm wind structure, environmental vertical wind shear, vapor transport, saddle-field pattern, and symmetric tropical cyclone circulation. Enhanced water vapor density, strengthened cloud water content, a thickening saturated wet layer, and rapidly developing strong boundary layer low-level jet and vertical wind shear in interaction with inversion temperature triggered and sustained the severe precipitation. The generation of lower concentration, regular-shaped, medium-large size pure liquid raindrops after the warm rain collision and coalescence process with a high concentration of small raindrops resulted in the generation of short duration intense precipitation with low echo mass, strong intensity, and high precipitation efficiency. (2) The formation and intensity of heavy precipitation were efficiently indicated using new-sounding data. The enhanced storm organization structure was characterized by the temperature, humidity, and wind vertical profile about 1.5-4 h in advance, and the micro-physical parameters predicted the intensity and features of precipitation with a lead-time of 0.5 h. (3) Although the echoes of heavy precipitation obtained by X-band radar were weak in intensity, short in range, and obviously attenuated, it was still possible to gather information about the microphysical properties of cloud-water particles below the boundary layer, which can significantly improve the ability to monitor the lower layers in conjunction with S-band radar.

參考文獻(xiàn)

相似文獻(xiàn)

引證文獻(xiàn)

引用本文

顏海帆,戴竹君,姜有山,曹玥瑤,孫軼.基于新型觀測(cè)資料分析臺(tái)風(fēng)“煙花”短時(shí)強(qiáng)降水成因.氣象科學(xué),2024,44(5):857-869 YAN Haifan, DAI Zhujun, JIANG Youshan, CAO Yueyao, SUN Yi. Analysis of short-time heavy precipitation during Typhoon “In-Fa” based on new detection data. Journal of the Meteorological Sciences,2024,44(5):857-869

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:2023-06-20
最后修改日期:2023-08-16
錄用日期:
在線發(fā)布日期: 2024-11-21
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