气候变化领域集成服务门户(CCPortal): Kinetic energy budget and moisture flux convergence analysis during interaction between two cyclonic systems: Case study

CCPortal

DOI	10.1016/j.dynatmoce.2019.03.007
	Kinetic energy budget and moisture flux convergence analysis during interaction between two cyclonic systems: Case study
	Abdeldym A.; Abdel Basset H.; Sayad T.; Morsy M.
发表日期	2019
ISSN	03770265
起始页码	73
结束页码	89
卷号	86
英文摘要	An analysis of the kinetic energy budget during a case of interaction between middle latitude and extratropical cyclones has been made in this work. Horizontal flux convergence constitutes a major energy sink. Generation of kinetic energy via cross-contour flow is a persistent source throughout the growth and decay periods. Dissipation of kinetic energy from subgrid to grid scales is an important source during the pre-storm period; it acts as a sink during the growth and decay periods. The major contribution to kinetic energy comes from a persistent upper tropospheric jet stream activity throughout the period of the cyclone development. The characteristics of moisture-flux components (divergent and rotational) along with precipitable water content for different tropospheric layers throughout the life cycle of our cyclone are also studied in this work. It is found that most of required humidity for our cyclone are initiated from Arabian Sea and then to some extent are reinforced over Gulf of Aden and east of central Africa and then by passing over Red sea enter to the south and south east of Mediterranean Sea. The rotational component of the moisture transport brings moisture from two regions; the first which is considered the main region is the Indian Ocean, Arabian Sea, Gulf of Aden and north east of Sudan. The second source region is the Atlantic and Mediterranean Sea. In the middle troposphere, the primary moisture source is found over central Africa, which in turn is traced to the Atlantic Ocean, the Indian Ocean, and the Arabian Sea. The upper-level moisture fluxes are weak and play a minor role over the area of interaction between two cyclones. © 2019 Elsevier B.V.
英文关键词	Cyclogenesis; Divergent and rotational wind; Generation of kinetic energy; Horizontal flux divergence; Kinetic energy budget; Moisture flux convergence
语种	英语
scopus关键词	Budget control; Kinetics; Storms; Troposphere; Water content; Cyclogenesis; Cyclone development; Extratropical cyclones; Horizontal fluxes; Moisture flux convergences; Precipitable water content; Rotational component; Upper-tropospheric jet stream; Kinetic energy; atmospheric moisture; cyclogenesis; cyclone; dissipation; energy budget; jet stream; kinetic energy; moisture flux; moisture transfer; troposphere; water content; wind forcing; Arabian Sea; Gulf of Aden; Indian Ocean; Mediterranean Sea
来源期刊	Dynamics of Atmospheres and Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178381
作者单位	Department of Astronomy and Meteorology, Faculty of Science, Al-Azhar University, Cairo, 11884, Egypt
推荐引用方式 GB/T 7714	Abdeldym A.,Abdel Basset H.,Sayad T.,et al. Kinetic energy budget and moisture flux convergence analysis during interaction between two cyclonic systems: Case study[J],2019,86.
APA	Abdeldym A.,Abdel Basset H.,Sayad T.,&Morsy M..(2019).Kinetic energy budget and moisture flux convergence analysis during interaction between two cyclonic systems: Case study.Dynamics of Atmospheres and Oceans,86.
MLA	Abdeldym A.,et al."Kinetic energy budget and moisture flux convergence analysis during interaction between two cyclonic systems: Case study".Dynamics of Atmospheres and Oceans 86(2019).