梅汛期區(qū)域性暴雨的多尺度分析及臨近預(yù)警

doi:10.3969/2013jms.0063

首頁 > 過刊瀏覽>2014年第34卷第5期 >564-572. DOI:10.3969/2013jms.0063

梅汛期區(qū)域性暴雨的多尺度分析及臨近預(yù)警
DOI:
                        10.3969/2013jms.0063
                    
CSTR:
                        
                    
作者:
                        
                        
                    
作者單位:
作者簡介:
通訊作者:
中圖分類號(hào):
基金項(xiàng)目:2011年度江蘇省青年氣象科研基金項(xiàng)目（Q201116）

Multi-scale analysis and nowcasting of a regional rainstorm during Meiyu period

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:

利用常規(guī)觀測數(shù)據(jù)、NECP1°×1°逐6 h再分析資料、FY2E衛(wèi)星黑體亮度溫度T_BB資料以及南京、常州多普勒天氣雷達(dá)產(chǎn)品，對(duì)2012年江蘇出梅之前的最后一場區(qū)域性暴雨過程進(jìn)行多尺度分析。在此基礎(chǔ)上，探索該類暴雨的臨近預(yù)警線索，結(jié)果表明：（1）此次過程的雨帶呈準(zhǔn)緯向分布，屬于典型的梅汛期靜止鋒降水。過程中主要有兩次降水集中時(shí)段，兩個(gè)階段的降水性質(zhì)存在差異，但都具備較高的降水效率。（2）中高緯大范圍穩(wěn)定的阻塞形勢，為此次持續(xù)性暴雨過程的產(chǎn)生提供了有利的大尺度環(huán)流背景。而在此過程中，兩段降水集中期的形成與地面觸發(fā)系統(tǒng)的出現(xiàn)和維持有著較為密切的聯(lián)系。（3）此次過程中兩段降水集中期內(nèi)的物理量特征以及T_BB的演變情況和其對(duì)應(yīng)的降水特征存在異同。（4）雷達(dá)特征分析表明，此次過程具有較高的降水效率和較長的持續(xù)時(shí)間。實(shí)際業(yè)務(wù)工作中可以通過判斷回波的質(zhì)心高度和邊界層風(fēng)速有無躍增來估計(jì)降水效率的潛勢。當(dāng)推斷較高的降水效率潛勢將持續(xù)較長時(shí)間時(shí)，應(yīng)及時(shí)發(fā)布暴雨警報(bào)。

Abstract:

By using the conventional observation data, NCEP 1°×1° reanalysis data at 6 h intervals, FY2E satellite T_BB data, as well as the Doppler radar products from Nanjing and Changzhou, a multi-scale analysis on a regional rainstorm in Meiyu period of 2012 in Jiangsu was conducted and some nowcasting clues about this kind of weather process were found. The results show that (1) the weather process can be judged as a typical stationary front precipitation in Meiyu period, based on the quasi-zonal rain band distribution. Although two precipitation periods appear in succession and they are characterized differently, both of them are highly efficient precipitations. (2) A wide range of stable blocking situation in mid-high latitude provides a suitable large-scale circulation background for the production of this process. In this process, the emergence and maintenance of the ground triggerring system are associated with the two precipitation centralized periods. (3) There exist some differences and similarities in the physical characteristics as well as the temporal evolution of T_BB and its corresponding precipitation characteristics in the two precipitation centralized periods. (4) The analysis of radar signal characteristics shows that this process has high precipitation efficiency and lasts for a long time. In practical business work, the potential precipitation efficiency can be estimated through the height of radar echo quality core and enhancement of the boundary layer wind speed. When high precipitation efficiency potential lasts longer, the rainstorm alert should be released timely.

參考文獻(xiàn)

相似文獻(xiàn)

引證文獻(xiàn)

引用本文

孔啟亮,孫翠梅,李建國,錢鵬,馬俊峰.梅汛期區(qū)域性暴雨的多尺度分析及臨近預(yù)警.氣象科學(xué),2014,34(5):564-572 KONG Qiliang, SUN Cuimei, LI Jianguo, QIAN Peng, MA Junfeng. Multi-scale analysis and nowcasting of a regional rainstorm during Meiyu period. Journal of the Meteorological Sciences,2014,34(5):564-572

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:2013-02-25
最后修改日期:2013-06-26
錄用日期:
在線發(fā)布日期: 2014-10-15
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