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Second order potential vorticity and its potential applications
Alternative TitleSecond order potential vorticity and its potential applications
Gao ShouTing1; Xu PengCheng2; Li Na1; Zhou YuShu1
2014
Source PublicationSCIENCE CHINA-EARTH SCIENCES
ISSN1674-7313
Volume57Issue:10Pages:2428-2434
AbstractA new invariant, the second order potential voracity (SPV), is derived in this paper. SPY is the dot product of vorticity and the potential voracity (PV) gradient, and is proven conservative for a compressible, adiabatic and frictionless atmosphere. Research shows that the new invariant may be used to indicate the evolution of PV, because SPV includes all the information that determines PV evolution: the wind field, and the PV gradient. Furthermore, SPV is capable of diagnosing heavy precipitation because of the strong signals it presents in areas of heavy rainfall. SPY also shows great potential as a comprehensive conserved quantity for indicating the dynamical tropopause and baroclinic instability.
Other AbstractA new invariant, the second order potential vorticity (SPV), is derived in this paper. SPV is the dot product of vorticity and the potential vorticity (PV) gradient, and is proven conservative for a compressible, adiabatic and frictionless atmosphere. Research shows that the new invariant may be used to indicate the evolution of PV, because SPV includes all the information that determines PV evolution: the wind field, and the PV gradient. Furthermore, SPV is capable of diagnosing heavy precipitation because of the strong signals it presents in areas of heavy rainfall. SPV also shows great potential as a comprehensive conserved quantity for indicating the dynamical tropopause and baroclinic instability.
KeywordTROPICAL CYCLONE PART I CYCLOGENESIS STRATOSPHERE DIAGNOSTICS TROPOSPHERE TROPOPAUSE ANOMALIES potential vorticity second order potential vorticity PV evolution PV gradient heavy rainfall
Indexed ByCSCD
Language英语
Funding Project[Key Research Program of the Chinese Academy of Sciences] ; [National Natural Science Foundation of China]
CSCD IDCSCD:5267876
Citation statistics
Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/52909
Collection应用数学研究所
Affiliation1.中国科学院
2.中国科学院数学与系统科学研究院
3.中国科学院大学
Recommended Citation
GB/T 7714
Gao ShouTing,Xu PengCheng,Li Na,et al. Second order potential vorticity and its potential applications[J]. SCIENCE CHINA-EARTH SCIENCES,2014,57(10):2428-2434.
APA Gao ShouTing,Xu PengCheng,Li Na,&Zhou YuShu.(2014).Second order potential vorticity and its potential applications.SCIENCE CHINA-EARTH SCIENCES,57(10),2428-2434.
MLA Gao ShouTing,et al."Second order potential vorticity and its potential applications".SCIENCE CHINA-EARTH SCIENCES 57.10(2014):2428-2434.
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