Migrating Semidiurnal Tide during the September Equinox Transition in the Northern Hemisphere

Graphic depicting migrating semidiurnal tide
Thursday, January 28, 2021

Specified Dynamics Whole Atmosphere Community Climate Model with thermosphere-ionosphere eXtension (SD-WACCMX) simulations are used to investigate the solar migrating semidiurnal tide (SW2) around September equinox at middle to high latitudes in the Northern Hemisphere.

Impact of GOLD Retrieved Thermospheric Temperatures on a Whole Atmosphere Data Assimilation Model

Graphic depicting the whole atmosphere temperature profiles
Tuesday, November 10, 2020

The present investigation evaluates the assimilation of synthetic data which has properties similar to actual Global-scale Observations of the Limb and Disk (GOLD) level-2 (L2) and other conventional lower atmospheric observations.

Global Modeling of Equatorial Spread F with SAMI3/WACCM-X

Graphic image of the comparison of 135.6 nm emissions
Tuesday, June 2, 2020

We report the first results of a global ionosphere/thermosphere simulation study that self-consistently generates large-scale equatorial spread F (ESF) plasma bubbles in the post-sunset ionosphere.

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