摘要
Based on the NCEP/NCAR reanalysis data set, empirical orthogonal function analysis and correlation analysis have been carried out. Antarctic oscillation index (AOI) is defined as the difference between the zonal-mean monthly sea level pressure departures of 40°S and 65°S. Regional surface temperature and precipitation over the extratropical Southern Hemisphere have a close relationship with AOI.
Based on the NCEP/NCAR reanalysis data set, empirical orthogonal function analysis and wrrelation analysis have been carried out. Antarctic osillation index (AOI) is defined as the difference between the zonal-mean monthly sea level pressure departures of 40°s and 65°s. Regional surface temperature and precipitation over the extratropical Southern Hemisphere have a close relationship with AO1.
基金
ThisworkwassupportedbytheNationalNaturalScienceFoundationofChina (GrantNo .496 35 190 ) .
