检索结果-南通市图书馆

ROLE OF SEA SURFACE TEMPERATURE IN MODULATING LIFE CYCLE OF TROPICAL CYCLONES OVER BAY OF BENGAL

Tropical Cyclone Research and Review 2019年第2期8卷 74-89页

作者： Shyama Mohanty Raghu Nadimpalli Krishna K Osuri sujata pattanayak U C Mohanty and Sourav Sil School of Earth Ocean and Climate Sciences Indian Institute of Technology BhubaneswarOdishaIndia Department of Earth and Atmospheric Sciences National Institute of Technology RourkelaOdishaIndia National Center for Medium Range Weather Forecasting NoidaUttar PradeshIndia

Sea surface temperature(SST) varies significantly in the presence of tropical cyclones(TCs). Using fixed SST throughout the integration of high resolution TC models is general practice in research and operational endeavor over the North Indian Ocean. The present study is to assess the impact of updating realistic SST in TC lifetime on track, intensity and rainfall of TCs. The Hurricane Weather Research Forecast(HWRF) model of single domain with 9 km resolution is used. A total of 31 forecast cases are considered from 6 TCs during 2007-16 with unique track and intensity characteristics. A set of two numerical experiments are done without(CNTL) and with 6-hourly SST update(SST) in TC *** track and intensity errors show that there is an improvement of 3–41% in track during 12–120 h forecast length for SST run. The SST runs improve landfall position and time prediction by 20% and 33% respectively. The cross track error of SST run is comparable(44 km) with average errors available for this basin(34 km);and along track errors are improved by 60% as compared to CNTL as well as average errors of the basin. The model is biased to overestimate a weaker TC and underestimate a stronger TC, however, the bias is reduced in SST run by 5–51%. The analyses of wind, enthalpy flux and warm core structures provide insight for realistic intensity prediction of SST run unlike CNTL. Rainfall intensity and radial distribution is also improved in SST run. Thus, this study highlights the significance of ocean coupling with TC models to advance forecast guidance.

关键词： tropical cyclone HWRF SST Bay of Bengal

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：