检索结果-南通市图书馆

A Climatological Investigation of the Activity of Summer Subtropical Vortices

Acta meteorologica Sinica 2008年第1期22卷 1-7页

作者：罗哲贤代刊 School of Remote Sensing NUIST National Meteorological Center

By applying a new vortex detection method to the ECMWF 40-yr reanalysis （ERA40） data from 1985 to 2002, the climatology of summer vortices has been investigated in five subtropical regions, i.e., the northwestern Pacific, northeastern Pacific, northwestern Atlantic, northeastern Atlantic, and Australia- South Pacific, followed by validation with NCEP/NCAR reanalysis data. Results are as follows：（1） The spatial distributions of ERA40 vortex activities （VAC） were well consistent with those of NCEP/NCAR reanalysis （NRA） results in all regions, especially in northwestern Pacific. （2） Because of different model resolutions, both the number and intensity of vortices obtained from NRA were significantly weaker than ERA40＇s. （3） Vortices mainly cruised in coasts and the adjacent seas, from where to the land or the open sea vortex activities were gradually decreased. （4） There were two active centers in the northwestern Pacific： one was located in South China Sea and the other, as the largest center of the five regions, spread from the east side of the Philippines to Japan. （5） Over the northwestern Atlantic, most vortices occurred in Panama and its west-side offshore. （6） The spatial distributions of vortices were alike between the northeastern Pacific and northeastern Atlantic, both spreading from coasts to the west-side sea at 5°-20°N. （7） In the Australia-South Pacific, vortices were not as active as those in the other four regions, and mostly took place in the equator-side of near ocean areas. （8） Except the northwestern Pacific and northwestern Atlantic, the VAC interannual variations in the other three regions were different between ERA40 and NRA data. （9） In the northwestern Pacific and northwestern Atlantic, the VAC interannual variation could be separated to several distinct stages. （10） Since the mid 1980s, mean vortex intensity was getting increased in the northwestern Pacific, which was most significant in the subtropical areas on a global basis. In the western

关键词： subtropics vortex climatology vortex intensity vortex detection

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

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：