A5019422491- Ionosphere and magnetosphere dynamics
- Earthquake Detection and Analysis
- Geomagnetism and Paleomagnetism Studies
- Solar and Space Plasma Dynamics
Wuhan University
2022-2024
Abstract Using 4 years of ionospheric radial current (IRC) from Swarm and ion velocity the Defense Meteorological Satellite Program, our work investigates response IRC to subauroral polarization streams (SAPS) during quiet time for first time. Both noontime (magnetic local time, MLT 11–14) inward duskside (MLT 18–19) outward get strengthened in amplitude. The ΔIRC is attributed penetration westward electric field at low‐mid latitudes. It drives poleward Hall currents equatorward field, which...
Abstract Based on 10 years of Defense Meteorological Satellite Program and Challenging Minisatellite Payload coordinated observations, we investigated the local time variation in response strength auroral electrojet (AEJ) with respect to sudden change solar wind inputs, including merging electric field ( E m ), substorm, interplanetary (IP) shock. The daytime (nighttime) AEJ responded several minutes (>30 min) after key enhancement. For substorms IP shocks, at all times showed an...
Abstract Using Challenging Minisatellite Payload and the Republic of China Satellite‐1 observations, response ionospheric radial current (IRC) in F region to enhancement merging electric field ( E m ) at different magnetic local times (MLT) is investigated. Possible physical mechanisms are discussed terms neutral wind, conductivity, prompt penetration (PPEF). The disturbance IRC (ΔIRC) increases upward (downward) direction daytime (nighttime) within 3 hr after enhancement. However, zonal...
Abstract The Poynting vector (Poynting flux) from Earth's magnetosphere downward toward its ionosphere carries the energy that powers Joule heating in and thermosphere. controls fundamental ionospheric properties affecting entire magnetosphere‐ionosphere‐thermosphere system, so it is necessary to understand when where flux significant. Taking advantage of new data sets generated DMSP (Defense Meteorological Satellite Program) observations, we investigate distribution within around auroral...