赤道电离层纬向等离子体漂移的高度相关气候模型(EZDrifts):对纬向漂移纵向变化分析的描述和应用

IF 3.4 2区 物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS
Alexander Anthony Massoud, F. Rodrigues, S. Shidler
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引用次数: 0

摘要

我们介绍了向公众提供的赤道电离层F区纬向漂移全球气候模型(EZDrifts)的实施情况。该模型使用了Haerendel等人(1992)提出的纬向等离子体漂移的分析描述,并由现实地磁场配置下电离层和热层的气候模型驱动。EZDrifts是Shidler和Rodrigues(2021)首次提出的纬向漂移模型的扩展,该模型仅适用于Jicamarca经度扇区和两种特定的太阳通量条件。EZDrifts现在使用Scherliess和Fejer(1999)模型的垂直赤道等离子体漂移,该模型允许它提供一年中任何一天、经度和太阳通量条件的纬向漂移。我们表明,该模型可以重现Shidler和Rodrigues(2021)模型对秘鲁部门的主要结果。我们还通过展示和讨论模型产生的纵向变化来说明EZDrifts的应用。我们表明,该模型预测了漂移逆转时间的纵向变化,这与C/NOFS的观测结果非常一致。EZDrifts还预测了漂移幅度的纵向变化,这可以在C/NOFS的6月至日观测中确定。我们还指出了春分和冬至期间观测到的数据模型差异。最后,我们解释了纬向等离子体漂移的纵向变化是由磁赤道纬度的纵向变化引起的,因此,风力发电机的纵向变化也导致了漂移。EZDrifts通过公共存储库分发给社区,可用于需要估计赤道纬向漂移总体行为的应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A height-dependent climatological model of the Equatorial ionospheric Zonal plasma Drifts (EZDrifts): Description and application to an analysis of the longitudinal variations of the zonal drifts
We introduce the implementation of a global climatological model of the equatorial ionospheric F-region zonal drifts (EZDrifts) that is made available to the public. The model uses the analytic description of the zonal plasma drifts presented by Haerendel et al. (1992) and is driven by climatological models of the ionosphere and thermosphere under a realistic geomagnetic field configuration. EZDrifts is an expansion of the model of the zonal drifts first presented by Shidler and Rodrigues (2021) which was only valid for the Jicamarca longitude sector and two specific solar flux conditions. EZDrifts now uses vertical equatorial plasma drifts from the Scherliess and Fejer (1999) model which allows it to provide zonal drifts for any day of the year, longitude and solar flux condition. We show that the model can reproduce the main results of the Shidler and Rodrigues (2021) model for the Peruvian sector. We also illustrate an application of EZDrifts by presenting and discussing longitudinal variabilities produced by the model. We show that the model predicts longitudinal variations in the reversal times of the drifts that are in good agreement with observations made by C/NOFS. EZDrifts also predicts longitudinal variations in the magnitude of the drifts that can be identified in the June solstice observations made by C/NOFS. We also point out data-model differences observed during Equinox and December solstice. Finally, we explain that the longitudinal variations in the zonal plasma drifts are caused by longitudinal variations in the latitude of the magnetic equator and, consequently, in the wind dynamo contributing to the resulting drifts. EZDrifts is distributed to the community through a public repository and can be used in applications requiring an estimate of the overall behavior of the equatorial zonal drifts.
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来源期刊
Journal of Space Weather and Space Climate
Journal of Space Weather and Space Climate ASTRONOMY & ASTROPHYSICS-GEOCHEMISTRY & GEOPHYSICS
CiteScore
6.90
自引率
6.10%
发文量
40
审稿时长
8 weeks
期刊介绍: The Journal of Space Weather and Space Climate (SWSC) is an international multi-disciplinary and interdisciplinary peer-reviewed open access journal which publishes papers on all aspects of space weather and space climate from a broad range of scientific and technical fields including solar physics, space plasma physics, aeronomy, planetology, radio science, geophysics, biology, medicine, astronautics, aeronautics, electrical engineering, meteorology, climatology, mathematics, economy, informatics.
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