Statistical Analysis of Temperature and Wind Speed Profiles above the South Pole

Journal of Atmospheric and Environmental Optics ›› 2013, Vol. 8 ›› Issue (5): 334-343.

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Statistical Analysis of Temperature and Wind Speed Profiles above the South Pole

WANG Ping 1,2, WU Xiao-qing1

(1 Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei 230031, China;
2 University of Chinese Academy of Sciences, Beijing 10039, China )

Received:2013-04-02 Revised:2013-05-08 Online:2013-09-28 Published:2013-09-06

Abstract

Abstract:

Based on the sonde data above the South Pole in 2008, using temperature and wind speed profiles, the vertical structures of boundary layer, the heights of the top of boundary layer and tropopause were decided. The air temperature, water vapor pressure, wind speed and direction in the surface were studied by statistical methods. The results showed that the vertical structures of boundary layer above the South Pole are stable in most time. However，some are instability in summer, especially in January. The average height of the boundary layer in summer night is 389 m, bigger than in daytime,304 m.It is 591 m in winter, bigger than in summer. The average height of the tropopause in the daytime is little bigger than in the nighttime of summer, they are respectively 6172 m and 5770 m. The inverse Richardson numbers of the high atmosphere above the South Pole are smaller than 4, the possibility of turbulence formation is very small.

Key words: South Pole, temperature and wind speed profiles, the top of boundary layer, tropopause

CLC Number:

P421

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Statistical Analysis of Temperature and Wind Speed Profiles above the South Pole

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