Empirical models of storm time equatorial zonal electric fields
نویسندگان
چکیده
منابع مشابه
Electric fields and zonal winds in the equatorial ionosphere inferred from CHAMP satellite magnetic measurements
[1] The Equatorial Electrojet (EEJ) produces a strong magnetic signal in measurements of the low-orbiting CHAMP satellite. Six years of data with more than 30,000 dayside equator crossings provide a unique data basis to study this current system. In addition to scalar measurements used in previous studies, we have also inverted vector magnetic field measurements to gain accurate meridional prof...
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[1] With the storm of 7–8 September 2002 as a study case, we demonstrate that an ionospheric model driven by a suitable storm time convection electric field can reproduce the F region dayside density enhancements associated with the ionospheric storm positive phase. The ionospheric model in this case is the Utah State University Time Dependent Ionospheric Model (TDIM); the electric field model ...
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In this work the response of the ionosphere due to the severe magnetic storm of 7–10 November 2004 is investigated by analyzing GPS Total Electron Content (TEC) maps constructed for the South America sector. In order to verify the disturbed zonal electric fields in South America during the superstorm, ionospheric vertical drift data obtained from modeling results are used in the analysis. The v...
متن کاملRole of neutral wind and storm time electric fields inferred from the storm time ionization distribution at low latitudes: in-situ measurements by Indian satellite SROSS-C2
Recently, there has been a renewal of interest in the study of the effects of solar weather events on the ionization redistribution and irregularity generation. The observed changes at low and equatorial latitudes are rather complex and are noted to be a function of location, the time of the storm onset and its intensity, and various other characteristics of the geomagnetic storms triggered by ...
متن کاملAutomated Real-time Extraction of Storm Properties from Gridded Fields
A multiscale segmentation algorithm has been developed to identify storms at different scales through contiguityenhanced K-Means clustering of texture features. The identified storms are used as a template for tracking storms through time and for identifying storm properties. A variety of scalar features are computed from the gridded values falling within the geographic and temporal extent of t...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Space Physics
سال: 1997
ISSN: 0148-0227
DOI: 10.1029/97ja02164