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Ionogram Notes about KO6BTY de JJ2JQF
The recent pair of QSOs to Japan from Project TouCans from Great Basin National Park has me wondering about F2 layer ionospheric skip propagation again.
I got our F2 skips working for CZML. Here's a look at the skip path for JJ2JQF de KO6BTY. Notice the Earedson ionosonde is almost right in the middle
Here's the map to take a look at
Note that the path goes for a little while underground. However, Hugyens:
Check out the mountains that can act as a knife-edge barrier creating new source.
Query for JJ2JQF
Query for JG0AWE
And the data went away!
Sources of Ionosphere and specifically F2 data from around the world
New to me: Mirrion ionosonde images from NOAA. I haven't seen this page before. Not super-useful to me because it points at images, not numeric data.
Lowell Digisonde Station list: Handy map of where stations exist.
CZML and HTML style comments
Accessing data via URL
We use an address like this
https://lgdc.uml.edu/common/DIDBGetValues?ursiCode=PA836&charName=hF2,hmF2&fromDate
to pull in ionosonde data. To access different stations, you need different ursiCode values, (one per station.) These can be found at https://www.digisonde.com/ under the URSI column.
This URL worked great in the browser, but thanks to this issue, stumbled a few times in the czml plugin's calls to get_f2m.
References
Ionosonde Data
Reinisch, B. W., and I. A. Galkin, Global ionospheric radio observatory (GIRO), Earth, Planets, and Space, 63, 377-381, doi:10.5047/eps.2011.03.001, 2011.
