Coupled model isolates effect of lower atmosphere on ionosphere



Day-to-day variability in the properties and behavior of the ionosphere, a region of the upper atmosphere, is driven by three main forces: shifts in the solar wind, changes in the Earth's geomagnetic field, and the downstream effects of variability in lower atmospheric layers. According to previous research, ionospheric variability driven by atmospheric process and by geomagnetic fluctuations are roughly equivalent in scale. Attempts to accurately model the effect of lower atmospheric dynamics on the ionosphere, however, have generally been limited by the low temporal resolution of the data used to represent the interactions.