Jing Liu

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.

Assimilation of Ionosphere Observations in the Whole Atmosphere Community Climate Model with thermosphere-ionosphere eXtension (WACCMX)

Graphic image of WACCMX+DART experiments
Thursday, July 16, 2020

The Earth’s upper atmosphere impacts a wide range of technologies, including satellite communication and navigation signals. Specification and forecasting of the upper atmosphere are critical for mitigating these effects.

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.

Temporal Variation of Solar Wind in Controlling Solar Wind‐Magnetosphere‐Ionosphere Energy Budget

Cross-correlation between Joule heating and the Epsilon function.
Thursday, September 13, 2018

Periodic oscillations associated with Alfven waves with periods ranging from several tens of minutes to several hours are commonly seen in the solar wind.

Faster Traveling Atmosphere Disturbances Caused by Polar Ionosphere Turbulence Heating

Meridional wind variability
Wednesday, February 28, 2018

For the first time, a new module enables Jing Liu and others to investigate the intimate coupling between polar turbulence electron heating and thermosphere disturbances in the context of a first principle, self-consistent model.

Development and Validation of the Whole Atmosphere Community Climate Model with Thermosphere and Ionosphere Extension (WACCM-X)

 WACCM-X simulations image
Wednesday, February 14, 2018

H.Liu et al. have improved a comprehensive numerical model, the Whole Atmosphere Community Climate Model with thermosphere and ionosphere extension (WACCM-X).

First Results from the Ionospheric Extension of WACCM-X during the Deep Solar Minimum Year of 2008

Comparisons of hmF2
Wednesday, February 7, 2018

The Whole Atmosphere Community Climate Model with thermosphere and ionosphere extension (WACCM-X) is a numerical model of the

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