兰州大学机构库 >大气科学学院
THE DOUBLE-LAYER STRUCTURE OF THE HADLEY CIRCULATION AND ITS INTERDECADAL EVOLUTION CHARACTERISTICS
Cheng Jian-bo; Hu, SJ(胡淑娟); Chou, JF(丑纪范)
2018-06
Source PublicationJOURNAL OF TROPICAL METEOROLOGY
ISSN1006-8775
Volume24Issue:2Pages:220-231
AbstractBased on the three-pattern decomposition of global atmospheric circulation (TPDGAC), this study investigates the double-layer structure of the Hadley circulation (HC) and its interdecadal evolution characteristics by using monthly horizontal wind field from NCEP/NCAR reanalysis data from 1948-2011. The following major conclusions are drawn: First, the double-layer structure of the HC is an objective fact, and it constantly exists in April, May, June, October and November in the Southern Hemisphere. Second, the double-layer structure is more obvious in the Southern than in the Northern Hemisphere. Since the double-layer structure is sloped in the vertical direction, it should be taken into consideration when analyzing the variations of the strength and location of the center of the HC. Third, the strength of the doublelayer structure of the HC in the Southern Hemisphere consistently exhibits decadal variations with a strong, weak and strong pattern in all five months (April, May, June, October, and November), with cycles of 20-30 a and 40-60 a. Fourth, the center of the HC (mean position of the double-layer structure) in the Southern Hemisphere consistently and remarkably shifts southward in all the five months. The net poleward shifts over the 64 years are 5.18 degrees, 2.11 degrees, 2.50 degrees, 1.79 degrees and 5.76 degrees for the five respective months, with a mean shift of 3.47 degrees.
Keywordthree-pattern decomposition of global atmospheric circulation Hadley circulation double-layer structure decadal variations
DOI10.16555/j.1006-8775.2018.02.010
Indexed BySCIE
Language英语
Funding ProjectFundamental Research Funds for the Central Universities of China[lzujbky-2014-203]
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000446040200010
PublisherJOURNAL OF TROPICAL METEOROLOGICAL PRESS
Original Document TypeArticle
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/300380
Collection大气科学学院
Corresponding AuthorHu Shu-juan
AffiliationLanzhou Univ, Coll Atmospher Sci, Lanzhou 73000, Gansu, Peoples R China
First Author AffilicationCollege of Atmospheric Sciences
Corresponding Author AffilicationCollege of Atmospheric Sciences
Recommended Citation
GB/T 7714
Cheng Jian-bo,Hu Shu-juan,Chou Ji-fan. THE DOUBLE-LAYER STRUCTURE OF THE HADLEY CIRCULATION AND ITS INTERDECADAL EVOLUTION CHARACTERISTICS[J]. JOURNAL OF TROPICAL METEOROLOGY,2018,24(2):220-231.
APA Cheng Jian-bo,Hu Shu-juan,&Chou Ji-fan.(2018).THE DOUBLE-LAYER STRUCTURE OF THE HADLEY CIRCULATION AND ITS INTERDECADAL EVOLUTION CHARACTERISTICS.JOURNAL OF TROPICAL METEOROLOGY,24(2),220-231.
MLA Cheng Jian-bo,et al."THE DOUBLE-LAYER STRUCTURE OF THE HADLEY CIRCULATION AND ITS INTERDECADAL EVOLUTION CHARACTERISTICS".JOURNAL OF TROPICAL METEOROLOGY 24.2(2018):220-231.
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