Modeling

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.

Role of Interaction Between Magnetic Rossby Waves and Tachocline Differential Rotation in Producing Solar Seasons

Synoptic maps
Wednesday, January 24, 2018

Mausumi Dikpati presents a nonlinear magnetohydrodynamic shallow-water model for the solar tachocline (MHD-SWT) that generates quasi-periodic tachocline nonlinear oscillations (TNOs) that can be identified with the recently discovered solar 'seasons'.

An Observationally Constrained 3D Potential-Field Source-Surface Model for The Evolution of Longitude-Dependent Coronal Structures

Model output from the analysis of Carrington rotation 1912
Thursday, December 28, 2017

Mausumi Dikpati explains the challenge of creating synoptic maps of the photosphere that reliably reflect conditions at all locations concurrently is a major limitation to progress in this area.

Analysis and Hindcast Experiments of the 2009 Sudden Stratospheric Warming in WACCMX+DART

Total electron content (TEC)
Thursday, December 7, 2017

Plain Language Summary or Abstract: Whole atmosphere models offer the opportunity to improve specification and forecasting of the upper atmosphere through incorporating the effects of forcing from both the lower atmosphere as well as the Sun.

Wenbin Wang

Dr. Wenbin Wang is a Project Scientist IV in the High Altitude Observatory of the National Center for Atmospheric Research.

Efficient Radiative Transfer for Dynamically Evolving Stratified Atmospheres

Static FALC model.
Friday, August 25, 2017

Language Summary or Abstract: We present a fast multi-level and multi-atom non-LTE radiative transfer method for dynamically evolving stratified atmospheres, such as the solar atmosphere. The preconditioning method of Rybicki & Hummer (RH92) is adopted.

Emergence of magnetic flux generated in a solar convective dynamo I

Evolution of the vertical component of the magnetic field
Friday, August 25, 2017

Formation of Sunspots and Active regions, and Origin of Their Asymmetries—We present a realistic numerical model of sunspot and active region formation based on the emergence of flux bundles generated in a solar convective dynamo.

The Global-Scale Observations of the Limb and Disk (GOLD) Mission

Simulation of GOLD atomic oxygen emissions
Monday, August 14, 2017

The NASA Global-scale Observations of the Limb and Disk (GOLD) mission is a dual-channel imaging spectrograph that will be carried on a commercial communications satellite in geostationary orbit. Launch is scheduled for January, 2018.

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