سابِق|تال

Deviation characteristics for atmospheric parameters in near space

  • role： First author第一作者
  • Affiliation：

    Unit No.96658 of PLA, Beijing 100094, China

  • Email：handing_ok@126.com
  • Introduction：韩丁(1986— )，男，工程师，研究方向为大气遥感与气象保障。E-mail：handing_ok@126.com
HAN Ding,  
  • Affiliation：

    Unit No.96658 of PLA, Beijing 100094, China

SHENG Xia,  
  • Affiliation：

    Unit No.96658 of PLA, Beijing 100094, China

YIN Shanjian,  
  • Affiliation：

    Unit No.96658 of PLA, Beijing 100094, China

SUN Yonggang

ملخص

To quantitatively analyze the accuracy of atmospheric parameters in near space using satellite data from TIMED and ENVISAT for more than 10 years and the density and wind calculated through the ideal gas equation of state and geostrophic wind formula, the atmospheric temperature, density, and zonal, meridional, and resultant winds are statistically calculated. These parameters are compared with China Reference Atmosphere to analyze the seasonal variation of atmospheric parameter deviation along the altitude, latitude, and longitude, which is significant for the application of satellite data, analysis of environmental characteristics, and support of meteorology in near space. The results are shown bolow. A temperature deviation above 55 km in the altitude decreases along the zonal direction during spring and autumn. Density deviation increases as altitude decreases, whereas in an altitude below 30 km, some longitudinal belts manifest large deviations along the meridional direction. The deviation of zonal wind speed has significant differences during summer as altitude increases, and it decreases along the zonal direction in altitudes between 40 km and 70 km. At an altitude below 40 km, the deviation of meridional wind speed has a uniform distribution along the zonal direction, and the difference between each season is not significant. The deviation of resultant wind speed evidentlyoscillatesas altitude increases. Along the zonal direction, it decreases and increases in altitudes between 40 km and 60 km during autumn, whereas along the meridional direction, it shows a decreasing trend in altitudes between 30 km and 45 km during spring.

مفهوم

near space;TIMED;ENVISAT;geostrophic wind;China reference atmosphere

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