On the generalized Ertel-Rossby invariant

CSpace > 应用数学研究所

	On the generalized Ertel-Rossby invariant
其他题名	On the Generalized Ertel-Rossby Invariant
	Gao Shouting 1; Xu Pengcheng1 ; Ran Lingkun 1; Li Na 1
	2012
发表期刊	ADVANCES IN ATMOSPHERIC SCIENCES
ISSN	0256-1530
卷号	29 期号:4 页码:690-694
摘要	A new invariant called the generalized Ertel-Rossby invariant (GER) was developed in this study. The new invariant is given by the dot product of the generalized vorticity and the generalized velocity. The generalized vorticity is the absolute vorticity minus the cross-product of the gradient of Lagrangian-time integrated temperature and the gradient of entropy. The generalized velocity is the absolute velocity minus the sum of the gradient of Lagrangian-time integrated kinetic potential and the Lagrangian-time integrated temperature multiplied by the gradient of entropy. In addition to the traditional potential vorticity, the GER invariant may provide another useful tool to study the atmospheric dynamic processes for weather phenomena ranging from large scales to small scales.
其他摘要	A new invariant called the generalized Ertel-Rossby invariant(GER) was developed in this study.The new invariant is given by the dot product of the generalized vorticity and the generalized velocity.The generalized vorticity is the absolute vorticity minus the cross-product of the gradient of Lagrangian-time integrated temperature and the gradient of entropy.The generalized velocity is the absolute velocity minus the sum of the gradient of Lagrangian-time integrated kinetic potential and the Lagrangian-time integrated temperature multiplied by the gradient of entropy.In addition to the traditional potential vorticity,the GER invariant may provide another useful tool to study the atmospheric dynamic processes for weather phenomena ranging from large scales to small scales.
关键词	POTENTIAL VORTICITY INVERSION CONSERVATION-LAWS potential vorticity generalized Ertel-Rossby invariant generalized vorticity generalized velocity
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China] ; [State Key Laboratory of Severe Weather (LaSW) Chinese Academy of Meteorological Sciences]
CSCD记录号	CSCD:4604719
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/53271
专题	应用数学研究所
作者单位	1.中国科学院大气物理研究所 2.中国科学院空间科学与应用研究中心 3.中国科学院数学与系统科学研究院 4.中国科学院大学
推荐引用方式 GB/T 7714	Gao Shouting,Xu Pengcheng,Ran Lingkun,et al. On the generalized Ertel-Rossby invariant[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2012,29(4):690-694.
APA	Gao Shouting,Xu Pengcheng,Ran Lingkun,&Li Na.(2012).On the generalized Ertel-Rossby invariant.ADVANCES IN ATMOSPHERIC SCIENCES,29(4),690-694.
MLA	Gao Shouting,et al."On the generalized Ertel-Rossby invariant".ADVANCES IN ATMOSPHERIC SCIENCES 29.4(2012):690-694.