2013 年 8 月 9 日日本东北北部地区暴雨案例的数值模拟

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-05-17 DOI:10.2151/sola.20a-001

Keisuke Ono, Junshi Ito

{"title":"2013 年 8 月 9 日日本东北北部地区暴雨案例的数值模拟","authors":"Keisuke Ono, Junshi Ito","doi":"10.2151/sola.20a-001","DOIUrl":null,"url":null,"abstract":"Two quasi-stationary quasi-linear convective systems caused local heavy rainfall on 9 August 2013 in the northern Tohoku region of Japan. We investigate this rare event in the region using a numerical simulation and examine airflow structures and mechanisms. The amount and locations of the simulated precipitation agree well with the observed values. The environment is favorable to convective systems, and analyses based on forward trajectories and composites of convective cells clarify airflow structures. Mountains upstream of the extreme precipitation areas trigger the back-building convective systems, whereas humid low-level inflows converging below the convective systems play a role in maintaining the convective systems downstream where there are no significant mountains.\n","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Numerical Simulation of a Case of Heavy Rainfall in the Northern Tohoku Region of Japan on 9 August 2013\",\"authors\":\"Keisuke Ono, Junshi Ito\",\"doi\":\"10.2151/sola.20a-001\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Two quasi-stationary quasi-linear convective systems caused local heavy rainfall on 9 August 2013 in the northern Tohoku region of Japan. We investigate this rare event in the region using a numerical simulation and examine airflow structures and mechanisms. The amount and locations of the simulated precipitation agree well with the observed values. The environment is favorable to convective systems, and analyses based on forward trajectories and composites of convective cells clarify airflow structures. Mountains upstream of the extreme precipitation areas trigger the back-building convective systems, whereas humid low-level inflows converging below the convective systems play a role in maintaining the convective systems downstream where there are no significant mountains.\\n\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2024-05-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.2151/sola.20a-001\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.2151/sola.20a-001","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

2013 年 8 月 9 日，两个准静止准线性对流系统在日本东北地区北部造成了局部强降雨。我们利用数值模拟研究了该地区的这一罕见事件，并考察了气流结构和机制。模拟降水量和地点与观测值非常吻合。环境有利于对流系统，基于对流单元的前向轨迹和复合材料的分析阐明了气流结构。极端降水区域上游的山脉引发了对流系统的反向形成，而在对流系统下方汇聚的潮湿低空气流则在没有明显山脉的下游起到了维持对流系统的作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Numerical Simulation of a Case of Heavy Rainfall in the Northern Tohoku Region of Japan on 9 August 2013

Two quasi-stationary quasi-linear convective systems caused local heavy rainfall on 9 August 2013 in the northern Tohoku region of Japan. We investigate this rare event in the region using a numerical simulation and examine airflow structures and mechanisms. The amount and locations of the simulated precipitation agree well with the observed values. The environment is favorable to convective systems, and analyses based on forward trajectories and composites of convective cells clarify airflow structures. Mountains upstream of the extreme precipitation areas trigger the back-building convective systems, whereas humid low-level inflows converging below the convective systems play a role in maintaining the convective systems downstream where there are no significant mountains.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.