Wenbin Wang

The effects of IMF By on the middle thermosphere during a geomagnetically “quiet” period at solar minimum

Colorful sphere-shaped comparison between TIE-GCM and GOLD
Thursday, May 5, 2022

Numerical simulations using the National Center for Atmospheric Research (NCAR) thermosphere-ionosphere-electrodynamics general circulation model (TIE-GCM) are performed to elucidate the effects of the interplanetary magnetic field (IMF) on the middle thermosphere composition during a “geomagneti

NASA Features Research by HAO Scientist Xuguang Cai

Satellite with spectrograph instrumentation hovering over the earth

Since 2017, HAO has provided scientific support and analysis for NASA's Global-scale Observations of the Limb and Disk (GOLD).

Geospace response to an extreme solar flare

Solar flare effects on magnetospheric convection and ionospheric potential.
Friday, June 18, 2021

Solar flares—a sudden eruption of electromagnetic radiation at the Sun—are known to have significant impacts on Earth’s upper atmosphere and ionosphere, but their collective effects on geospace as an integrated system have never been examined.

Variations in thermosphere composition and ionosphere total electron content under ‘geomagnetically quiet’ conditions at solar-minimum

Tie-GCM Graphic
Friday, May 28, 2021

We conducted observational and modeling studies of thermospheric composition and ionospheric total electron content (TEC) variations during two geomagnetically quiet periods (maximum Kp=1.7) at solar minimum.

Investigation of a neutral ‘tongue’ observed by GOLD during the geomagnetic storm on May 11,2019

Latitude-longitude distribution of percentage difference
Tuesday, May 4, 2021

The National Aeronautics and Space Administration Global-scale observations of the Limb and Disk (GOLD) mission observed a unique structure of thermospheric column density ratio of O to N2 (∑O/N2) during a geomagnetic storm on day of year (DOY) 130 (May 10) to DOY 132 in 2019.

HIWIND Observation of Summer Season Polar Cap Thermospheric Winds

Graphic image of HIWIND thermospheric winds
Wednesday, February 5, 2020

HIWIND (High altitude Interferometer WIND experiment) is a balloon borne Fabry Perot interferometer (FPI) for daytime thermospheric wind observations.

SAPS in the 2013 March 17 Storm Event: Initial Results from 1 the Coupled Magnetosphere-Ionosphere-Thermosphere Model

Figure of LTR simulation results of the ionospheric states
Thursday, October 31, 2019

Subauroral polarization stream (SAPS) are latitudinally narrow flow channels of large westward plasma drifts in the subauroral ionosphere.


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