The extension of the neutral atomic Na layer into thermosphere (up to 170 km) was observed in low and high latitudes.
The Whole Atmosphere Community Climate Model with thermosphere and ionosphere extension (WACCM-X) is a comprehensive numerical model, spanning the range of altitude from the Earth’s surface to the upper thermosphere.
The scientific goals of the model include studying solar impacts on the Earth atmosphere, couplings between atmosphere layers through chemical, physical and dynamical processes, and the implications of the coupling for the climate and for the near space environment. The development of the model is inter-divisional collaboration that unifies certain aspects of the upper atmospheric modeling of HAO, the middle atmosphere modeling of ACOM, and the tropospheric modeling of CGD, using the NCAR Community Earth System Model (CESM) as a common numerical framework.
-CESM main page
-CESM quick start guide
-WACCM-X Compsets
-CESM/WACCM-X description
-http://www.cesm.ucar.edu/working_groups/Whole-Atmosphere/
-https://www2.acom.ucar.edu/gcm/waccm
-/modeling/waccm-x/mailing-list
-/modeling/sd/waccm-x/ExtendedRuns
-https://doi.org/10.26024/ypnz-d857
-Release Notes for WACCM-X v.2.1
-Release Notes for WACCM-X v.2.0
-http://www.cesm.ucar.edu/models/cesm2
-http://www.cesm.ucar.edu/models/cesm2/whatsnew.html
The extension of the neutral atomic Na layer into thermosphere (up to 170 km) was observed in low and high latitudes.
This study, by Pedatella and others, employs a troposphere to lower thermosphere reanalysis dataset generated by the Whole Atmosphere Community Climate Model with data assimilation provided by the Data Assimilation Research Testbed (WACCM+DART).
Nicholas Pedatella notes that geomagnetic storms are an important driver of variability in Earth’s ionosphere, and can have significant societal impacts through the ionosphere’s impact on communications and navigation systems (e.g., GPS).
Whole Atmosphere Community Climate Model (WACCM) simulations are used to investigate the short-term (30-day) temporal variability in the mid- and high-latitude Southern Hemisphere mesosphere.
H.Liu et al. have improved a comprehensive numerical model, the Whole Atmosphere Community Climate Model with thermosphere and ionosphere extension (WACCM-X).