| CORRELATION BETWEEN ASO AND AAO |
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| 作者姓名： | LIUNa ZHANGQing-hua CHENHong-xia |
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| 作者单位： | [1]KeyLaboratoryofMarineScienceandNumericalmodeling,TheFirstInstituteofOceanography,StateOceanicAdministration,Qingdao266061,China [2]CollegeofPhysicalandEnvironmentOceanography,OceanUniversityofChina,Qingdao266003,China |
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| 基金项目： | theNationalNaturalScienceFoundationofChina(GrantNo :4 0 2 310 13) |
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| 摘 要： | Using a 34 years database consisting of sea level pressure and sea ice concentration, the relationship between Antarctic Oscillation (AAO) and Antarctic Sea-ice Oscillation (ASO) was investigated. Firstly, Empirical Orthogonal Function (EOF) analysis depicts the spatial variability of AAO and ASO and Antarctic Sea-ice Oscillation Index (ASOI) was defined for the first time. Secondly, power spectrum and headlag correlation analysis show that ASO and AAO have the same periods of quasi-three years, quasi-one year and quasihalf a year. Corresponding to AAO, ASO has an evident antioscillation after one and half a year.
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| 关 键 词： | 大西洋振动 大西洋-冰层振动 经验直交方程 功率光谱 大气运动 |
CORRELATION BETWEEN ASO AND AAO |
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| LIUNa ZHANGQing-hua CHENHong-xia.CORRELATION BETWEEN ASO AND AAO[J].Journal of Hydrodynamics,2004,16(5):544-547. |
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| Authors: | LIUNa College of Physical and Environment Oceanography Ocean University of China Qingdao China Key Laboratory of Marine Science and Numerical modeling The First Institute of Oceanography State Oceanic Administration Qingdao ChinaZHANG Qing-hua CHEN Hong-xia Key Laboratory of Marine Science and Numerical modeling The First Institute of Oceanography State Oceanic Administration Qingdao China |
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| Affiliation: | LIUNa College of Physical and Environment Oceanography,Ocean University of China,Qingdao 266003,China Key Laboratory of Marine Science and Numerical modeling,The First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,ChinaZHANG Qing-hua,CHEN Hong-xia Key Laboratory of Marine Science and Numerical modeling,The First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China |
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| Abstract: | Using a 34 years database consisting of sea level pressure and sea ice concentration, the relationship between Antarctic Oscillation (AAO) and Antarctic Sea-ice Oscillation (ASO) was investigated. Firstly, Empirical Orthogonal Function (EOF) analysis depicts the spatial variability of AAO and ASO and Antarctic Sea-ice Oscillation Index (ASOI) was defined for the first time. Secondly, power spectrum and head-lag correlation analysis show that ASO and AAO have the same periods of quasi-three years, quasi-one year and quasi-half a year. Corresponding to AAO, ASO has an evident anti-oscillation after one and half a year. |
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| Keywords: | ASO AAO EOF power spectrum analysis correlation analysis |
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