...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >On the utility of the ionosonde Doppler-derived EXB drift during the daytime
【24h】

On the utility of the ionosonde Doppler-derived EXB drift during the daytime

机译：的效用ionosonde Doppler-derived在白天EXB漂移

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Vertical EXB drift measured using the ionosonde Doppler sounding during the daytime suffers from an underestimation of the actual EXB drift because the reflection height of the ionosonde signals is also affected by the photochemistry of the ionosphere. Systematic investigations have indicated a fair/good correlation to exist between the C/NOFS and ionosonde Doppler-measured vertical EXB drift during the daytime over magnetic equator. A detailed analysis, however, indicated that the linear relation between the ionosonde Doppler drift and C/NOFS EXB drift varied with seasons. Thus, solar, seasonal, and also geomagnetic variables were included in the Doppler drift correction, using the artificial neural network-based approach. The RMS error in the neural network was found to be smaller than that in the linear regression analysis. Daytime EXB drift was derived using the neural network which was also used to model the ionospheric redistribution in the SAMI2 model. SAMI2 model reproduced strong (weak) equatorial ionization anomaly (EIA) for cases when neural network corrected daytime vertical EXB drift was high (low). Similar features were also observed in GIM TEC maps. Thus, the results indicate that the neural network can be utilized to derive the vertical EXB drift from its proxies, like the ionosonde Doppler drift. These results indicate that the daytime ionosonde measured vertical EXB drift can be relied upon, provided that adequate corrections are applied to it.
机译：使用ionosonde垂直EXB漂移测量白天多普勒探测遭受实际EXB漂移的低估因为反射ionosonde高度信号也是光化学的影响电离层。表示一个公平/存在良好的相关性在C / nof和ionosonde Doppler-measured垂直EXB漂移在白天结束了磁赤道。表明之间的线性关系ionosonde多普勒漂移和C / nof EXB漂移随季节。还地磁变量中多普勒漂移校正,使用人工神经网络方法。神经网络被发现小于线性回归分析。使用神经网络EXB漂移是派生的也用于电离层模型再分配在SAMI2模型中。复制强(弱)赤道电离异常情况下神经网络(EIA)修正白天垂直EXB漂移是高(低)。TEC的地图。神经网络可以利用获得的垂直EXB漂移的代理,如ionosonde多普勒漂移。,白天ionosonde测量垂直EXB漂移可以依靠,前提是足够了应用修正。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号