Using Multiple Data Type to Determining the Electric Fields and Neutral Winds During through Days of Quiet and Magnetically Active Period to Investigate Low-Latitude Ionospheric Stability of Magnetically Active Days

Abstract:

We used models of the ionosphere and electrodynamics for the high, middle, and low latitudes combined with several data types to determine the ionospheric drivers for the quiet day before the storm onset, the two days of the magnetically active period, and two subsequent days. The global ionosphere and driver conditions will be generated using the High-Latitude Ionospheric Dynamics and Electrodynamics Data Assimilation (HL-IDED-DA) and the Low-Latitude Ionospheric Dynamics and Electrodynamics Data Assimilation (LL-IDED-DA) models to determine ionospheric conditions, neutral winds, and electric fields as drivers of the ionosphere. The data sets used within both models are GPS-TEC data from CORS and LISN, SuperMAG magnetometer data, and SuperDARN line-of-sight velocities. The presentation focuses on the American Sector response to the storm period since the majority of TEC data are from North and South America. We compare the ionosphere, neutral winds, and electric fields of the quiet day with the storm day and successive days after the storm and the stability characteristics of the low-latitude ionosphere based on the conditions generated by the model-data inversions. The calculated growth rates of the Rayleigh-Taylor instability and the collisional shear instability will be compared for the days prior, during, and after the magnetic storm.