Thermosphere

Challenges to Understanding the Earth's Ionosphere and Thermosphere

Schematic of plasma and density structures in the IT system
Thursday, October 3, 2019

In this paper we discuss, in a limited way, some of the challenges to advancing our understanding and description of the coupled plasma and neutral gas that make up the ionosphere and thermosphere (I-T).

Kevin Pham

Dr. Kevin Pham is a Postdoctoral Fellow in the High Altitude Observatory of the National Center for Atmospheric Research specializing in the magnetosphere and radiation belt precipitation.

Jing Liu

Jing Liu is a project scientist in the High Altitude Observatory at NCAR.

Storm-time Thermosphere Over Cooling: Impacts of Nitric Oxide, Solar EUV and Particle Precipitation

GOCE neutral density on dusk side
Tuesday, September 4, 2018

Some recent studies have revealed that the post-storm thermospheric mass density sometime drops below its pre-storm value. This phenomenon has been attributed to the over-cooling effect caused by enhanced infrared emissions from nitric oxide.

Long-lasting response of the global thermosphere and ionosphere to the 21 August 2017 solar eclipse

Long-lasting response of the global thermosphere and ionosphere
Sunday, August 5, 2018

Explains Wenbin Wang and others, previous studies have been devoted to examining the ionosphere and thermosphere response during the solar eclipse, but the post-eclipse response of the global ionosphere and thermosphere has not previously been well quantified.

Global responses of the coupled thermosphere and ionosphere system to the August 2017 great American solar eclipse

Global maps
Wednesday, August 1, 2018

It is commonly believed that solar eclipses have a great impact on the ionosphere-thermosphere (I-T) system within the eclipse shadow, but little attention has been paid to the global responses to them.

It's a Bird, it's a Plane, no, it's HiWIND

HiWind

In February, 2018, a specialized engineering team, led by principal investigator Dr. Qian Wu, traveled from Boulder, Colorado to a NASA facility in Palestine, Texas.

The longitudinal variations of upper thermospheric zonal winds observed by the CHAMP satellite at low and mid-latitudes

Longitudinal structures of zonal winds
Thursday, March 1, 2018

In this work, Kedeng Zhang, Wenbin Wang and others, investigate the longitudinal patterns of thermospheric zonal winds (~400 km) and their seasonal and solar activity dependence.

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.

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