Stan Solomon

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).

Global-scale observations and modeling of far-ultraviolet airglow

Image depicting measurement, model simulation, and normalized differences
Monday, December 16, 2019

The NASA Global-scale Observations of the Limb and Disk (GOLD) instrument is an ultraviolet imager and spectrograph that observes light from the upper-atmosphere of the Earth, in order to infer quantities such as the composition and temperature of the thermosphere.

Ionospheric Electron Content during Solar Cycle 23

Comparison of measured to modeled global total electron content
Tuesday, March 13, 2018

Solomon & Qian show that solar minima are not all the same, and may have implications for understanding the Sun during the extended periods of very low activity known as “grand minima” that have sometimes occurred in the past, the best known of which was the Maunder Minimum during 1650–1700.

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

Simulation of the August 21, 2017 Solar Eclipse using the Whole Atmosphere Community Climate Model—eXtended

Temperature differences between the eclipse and baseline simulations
Wednesday, February 7, 2018

Joseph McInerney and others, use a computer model called the Whole Atmosphere Community Climate Model - eXtended (WACCM-X v. 2.0) to investigate what happens to the atmosphere from the surface of Earth up to space during the “Great American Eclipse” of 21 August 2017.

Whole Atmosphere Simulation of Anthropogenic Climate Change

Model calculations
Friday, February 2, 2018

Stan Solomon and others have performed the first whole-atmosphere simulations of global change that include the lower atmosphere (0-15 km), middle atmosphere (15-90 km), thermosphere-ionosphere (90-500 km), and all relevant physics and chemistry.

Temporal Variability of Atomic Hydrogen From the Mesopause to the Upper Thermosphere

Zonal-mean vertical profiles of hydrogen
Wednesday, January 24, 2018

Liying Qian et al investigate atomic hydrogen (H) variability from the mesopause to the upper thermosphere, on time scales of solar cycle, seasonal, and diurnal.


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