Current Ionosonde Virtual Height/Doppler Velocity Summary Plots

The following summary plots have been generated from data collected by the Space Environment Corporation Canadian Advanced Digital Ionosonde (CADI) at the Utah State University Bear Lake Observatory. These data are taken from Doppler sounding modes over the range 3.84-4.04 MHz at night and from 5.19-5.64 MHz during daylight hours. Doppler soundings are performed every 15 minutes. Estimated virtual height and Doppler velocities (negative upwards, positive downwards) are extracted from the soundings and plotted below. See the operation log for a list of recent changes to the operating modes. For more information about the complete data sets, please contact Dr. Vince Eccles.

Data plots for 2002 are also available.

CADI virtual height/Doppler velocity daily summary plots: