Speaker
Description
Multi-year observations of the thermospheric wind are available at many mid latitude locations. NCAR and other institutes have been operating ground based Fabry Perot interferometer for nighttime O 630 nm airglow Doppler remote sensing to monitor thermospheric winds. Thermospheric winds are affected by solar and geomagnetic activities, as well as atmospheric tides from lower atmosphere. Long term observation can help understand solar cycle effect and other long-term variations in the atmosphere. We will compare observations from Boulder Colorado and other locations with NCAR TIEGCM to study the long-term trends in the mid latitude thermospheric winds. Other NCAR model simulation will also be explored. The goal is to characterize the effects from above (solar and geomagnetic) and below (atmospheric).