库尔勒地区临近空间大气风场特性研究  

Research on Characteristics of Near-space Atmospheric Wind in Korla Region

作　　者：赵军 周开鹏 袁有林 李国杰 Zhao Jun;Zhou Kaipeng;Yuan Youlin;Li Guojie(Unit No.63610 of PLA,841001;Unit No.63618 of PLA,841001)

机构地区：[1]63610部队,841001 [2]63618部队,841001

出　　处：《内蒙古气象》2021年第3期25-30,共6页Meteorology Journal of Inner Mongolia

摘　　要：中频雷达是获取临近空间70~100 km范围内大气风场的重要探测设备之一。文章利用库尔勒中频雷达(2016—2019年)的观测数据,分析研究库尔勒临近空间大气风场变化规律,并利用偏差、相关系数和相对偏差将中频雷达观测数据和HWM14经验模型数据进行比较检验。最后,分析了库尔勒地区中频雷达观测数据在不同尺度扰动的变化特性及库尔勒地区上空中层顶潮汐的分布特征。结果表明:中频雷达观测的纬向风、经向风的统计特征均与高度、季节有密切关系;与HWM14模型的纬向风偏差、相关系数、相对偏差的平均值分别为-0.2 m·s^(-1),0.0986,95.5168%;与HWM14模型的经向风偏差、相关系数、相对偏差的平均值分别为-17.8 m·s^(-1),0.1693,90.5402%;在80~100 km高度范围内,周日潮汐和半日潮汐的平均振幅随高度的增加呈先增加再减小的趋势。Within the range of 70~100 km in the near-space, Medium Frequency(MF) radar is one of the important detection equipment to obtain the atmospheric wind. This paper uses the observation data of the Korla MF radar from 2016 to 2019 to analyze the changes in the atmospheric wind, and compare the MF radar observation data with the HWM14 empirical model data using the deviation, correlation coefficient and relative deviation. Finally, the variation characteristics of disturbances at different scales and the distribution characteristics of middle-level top tides are analyzed. The results show that the statistical characteristics of the zonal and meridional wind observed by the MF radar are closely related to the altitude and season. The average values of the zonal wind deviation, correlation coefficient and relative deviation from the HWM14 model are:-0.2 m·s^(-1),0.0986,95.5168%. The mean values of the meridional wind deviation, correlation coefficient, and relative deviation from the HWM14 model are:-17.8 m·s^(-1),0.1693,90.5402%. In the range of 80~100 km height, the average amplitudes of weekday tides and half-day tides first increase and then decrease with the increase in altitude.

关 键 词：中频雷达 HWM14模型 大气风场 潮汐波 

分 类 号：P425[天文地球—大气科学及气象学]