Dopplergrams

Mediciones Doppler en Tucuman:

http://datacenter.ufa.cas.cz/

http://ri.conicet.gov.ar/bitstream/handle/11336/31525/CONICET_Digital_Nro.4fe69e58-d460-4ece-86c3-5b75153db5ff_A.pdf?sequence=2&isAllowed=y

https://www.ufa.cas.cz/en/institute-structure/department-of-ionosphere-and-aeronomy/measurements-operated-by-department-of-ionosphere-and-aeronomy/

Balizas OK0EU y doppler/fading observado por G4ZFQ:

https://sites.google.com/site/g4zfqradio/ok0eu-beacon-screenshot-3-4-august-2010

http://www.ok1dub.cz/ok0eu/

https://ok0eu.fud.cz/

http://ok1dub.cz/ok0eu/monitoring_ok0eu.htm

Dopplergrams varios:

https://www.nk7z.net/dopplergrams/

http://www.qsl.net/zl1bpu/IONO/SBSpectrum.htm

https://www.backyardastronomy.net/2018/06/16/hf-dopplergams/

http://pensacolasnapper.blogspot.com/search/label/Dopplergram

http://pensacolasnapper.blogspot.com/2012/07/cme-effect-on-40m-qrss-signal.html

http://www.qsl.net/g3cwi/pedersen.htm

http://www.qsl.net/g3cwi/propagat.htm

http://www.k5cm.com/wwv-doppler-corr.htm

http://www.users.on.net/~davroz/vk6di/pedersenrays/pedersenrays.html

http://techdoc.kvindesland.no/radio/b2/20051213183308714.pdf

https://www.youtube.com/watch?v=52-fyIu84Qk

Papers
https://www.researchgate.net/publication/313330979_A_review_of_results_of_the_international_ionospheric_Doppler_sounder_network