SWS Ionogram Viewer
This viewer displays available ionograms for the last 5 years from currently operational Australasian and Antarctic stations. The date and time controls show when data is available from the selected station.
See the World Data Centre for historical and de-commissioned ionosonde data from across the globe. The catalogue includes Australasian and Antarctic station locations and availability details.
Please make sure to turn off the "Compatibility View" mode if you use IE browser.
The old java-based Ionogram Viewer is here.