WACCM | High Altitude Observatory

Whole Atmosphere Community Climate Model

Impact of Thermospheric Wind Data Assimilation on Ionospheric Electrodynamics using a Coupled Whole Atmosphere Data Assimilation System

Longitude-latitude maps of NmF2 from the NR (first column) and the difference of NmF2 between OSSEs and NR (second to fourth columns) at six different times.

Interhemispheric Coupling Mechanisms in the Middle Atmosphere of WACCM6

Differences in the monthly mean temperature from the long-term average over three WACCM realizations

On the importance of interactive ozone chemistry in Earth-System models for studying MLT tidal changes during sudden stratospheric warmings

SW2 amplitude in neutral temperature

Quiet-time Day-to-day Variability of Equatorial Vertical E×B Drift from Atmosphere Perturbations at Dawn

Local-time and seasonal variations of day-to-day variability of vertical E×B drift

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

Comparison of 135.6 nm emissions from the SAMI3/WACCM-X simulation for the March case (left and middle panels) and GOLD emission data (right panel) observed from geosynchronous orbit [Eastes et al., 2019]

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

(a) Root mean square error and (b) bias in WACCMX+DART experiments compared to ground-based Global Navigation Satellite System (GNSS) total electron content observations for the 1 hr forecast (F) and analysis (A)

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

Comparison of the whole atmosphere temperature profiles from the true state, lower atmosphere only assimilation (LA), and lower-atmosphere plus GOLD assimilation (LA+GOLD) for 14 UT (left column) and 18 UT (right column) at different locations inside the GOLD field of view (top) and for the zonal mean (bottom)

Predictability of the Mesosphere and Lower Thermosphere during Major Sudden Stratospheric Warmings

SW2 Amplitude In Meridional Wind

Post-midnight O+ Depletions Observed by ICON: Data/Model Comparison

Comparison of observations (black squares) to SAMI3/WACCM-X results (red crosses)

The impact of ICON/MIGHTI zonal and meridional winds on upper atmosphere weather specification in a whole atmosphere data assimilation system

The difference between zonal wind field in the NR and the prior ensemble mean of OSSEs at 0000 UT of December 31

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