The thermospheric data assimilation is limited due to the lack of continuous observation of the neutral state.
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 thermospheric data assimilation is limited due to the lack of continuous observation of the neutral state.
The NASA Ionosphere Connection explorer was launched in October 2019 with the goal of understanding the transition from Earth's atmosphere to space by measuring key quantities at low latitudes.
Stratosphere sudden warmings (SSWs) are strong disturbances in the high latitude, wintertime, stratospheric polar vortex.
Han-Li Liu has observed that atmospheric gravity waves may transport heat and chemical species in the vertical direction.
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.