Investigation on evolutive law of geopotential height of two poles and the equator at 500 hPa geopotential height field
500 hPa高度场上两极和赤道位势高度气候演变规律的研究

Analysing the geopotential height data of the South Pole,the Equator,the North Pole and zonal wind at 500 hPa level,we can find their evolutive law and the correlation between one and another.We conclude that Antarctic geopotential height descends and tropic geopotential height ascends and the trend of Arctic geopotential height change is not visible.There are obvious chronological and interannual changes at South Pole,Equator and North Pole.Geopotential height represents anticorrelation between the Antarctic pole region and tropic region.There is no significant correlation between the Arctic pole region and tropic region,so as correlation between Antarctic region and Arctic region.In the process of change,North Pole vibrates after South Pole,tropic region vibrates after pole region,the first change region is the South Pole.Zonal wind at middle and high latitudes ascends significantly and changes chronologically and interannually,zonal wind in the south hemisphere vibrates after geopotential height at the Antarctic region.