高度60~110 km大气风场特征的实测和模式对比分析  

Measured and model comparison analysis of atmospheric wind field characteristics at an altitude of 60~110 km

作　　者：程胡华 高超 李新东 赵亮[4] 刘海文[5] 张笑 CHENG HuHua;GAO Chao;LI XinDong;ZHAO Liang;LIU HaiWen;ZHANG Xiao(Unit 63729 of PLA,Taiyuan 030027,China;Beijing Institute of Tracking and Telecommunications Technology,Beijing 100094,China;Unit 96941 of PLA,Beijing 102208,China;State Key Laboratory of Numerical Modeling for Atmosphere Sciences and Geophysical Fluid Dynamics(LASG),Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China;Department of Aviation Meteorology,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]63729部队,太原030027 [2]北京跟踪与通信技术研究所,北京100094 [3]96941部队,北京102208 [4]中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室(LASG),北京100029 [5]中国民航大学航空气象系,天津300300

出　　处：《地球物理学进展》2024年第5期1711-1722,共12页Progress in Geophysics

基　　金：国家自然科学基金项目(42075040);国家自然科学基金-中国民用航空局联合研究基金重点项目(U2033207);中国科学院战略性先导科技专项(A类)(XDA17010105)联合资助。

摘　　要：HWM07模式能够提供任意时间、地点、高度的中高层大气风场资料,弥补了观探测资料时空分辨率低的不足,已成为航天飞行器前期设计过程中的重要参考资料,需对该模式风场精度特征进行研究.基于2014年1月(冬季)、7月(夏季)中频雷达和HWM07模式的经向风和纬向风,通过采用常用数理统计和Lomb-Scargle周期图方法,对两种资料的纬向风和经向风在冬季、夏季变化及差异特征进行了初步研究,结果表明:在高度60~110 km,(1)在冬季和夏季,中频雷达与HWM07模式的平均经向风、平均纬向风特征基本一致,但冬季与夏季之间的平均风场特征相反;(2)对于经向风和纬向风,冬季HWM07模式与中频雷达之间的偏差、绝对差、相关系数随高度变化特征均与夏季存在较大差异;(3)HWM07模式与中频雷达纬向风、经向风在高度86~92 km中显著含有的波周期及功率谱值均存在明显差异,对纬向风及经向风变化特征起主要作用的大气波动也存在差异,且与高度、季节有关.因此,在应用HWM07模式风场资料时,需注意其与真实风场之间风速大小、及显著含有波谱的差异特征,与季节、高度有关.The HWM07 model can provide mid-and upper-atmosphere wind field data at any time,position and altitude,It makes up for the low temporal and spatial resolution of the observation data,and has become an important reference data in the early design process of space vehicles,Therefore,the accuracy characteristics of the wind field from the HWM07 model need to be studied.Based on the meridional wind data and zonal wind data of HWM07 model and MF radar in January(winter)and July(summer)2016 in Langfang,the changes and differences of meridional wind and zonal wind in winter and in summer are preliminarily studied by using common mathematical statistics methods such as absolute difference,correlation coefficient and Lomb-Scargle periodogram.The results demonstrated that at the altitude of 60~110 km,(1)in winter and in summer,the average meridional wind and zonal wind characteristics of MF radar are basically consistent with the HWM07 model,but the average wind field characteristics between winter and summer are opposite.(2)For meridional wind and zonal wind,the variation characteristics of deviation,absolute difference and correlation coefficient between HWM07 model and MF radar with height in winter are significantly different from those in summer.(3)At an altitude of 86~92 km,there are significant differences between zonal wind,meridional wind of MF radar and HWM07 model in wave period and the power spectrum values,there are also differences in atmospheric fluctuations that play a major role in the characteristics of zonal wind and meridional wind,and are related to altitude and season.Therefore,when applying the wind field results of HWM07 model,it is necessary to pay attention to the differences in wind speed and significant wave spectrum between HWM07 model wind field data and the real wind field data,which are related to season and height.

关 键 词：高度60~110 km HWM07模式 中频雷达 风场 Lomb-Scargle周期图 

分 类 号：P351[天文地球—空间物理学]