🛰️ New paper by Němec et al.: After analyzing ~10 years of #MAVEN wave data, the authors report a #lightning-like electromagnetic #whistler signal in the #Martian #ionosphere. Its frequency dispersion matches theoretical propagation through #Mars’ ionosphere and crustal magnetic fields, suggesting that electrical discharges may occur in the Martian #atmosphere.
Using joint observations from the #Tianwen-1 in the #solarwind and #MAVEN in the induced #magnetosphere, Lin et al. identified a magnetic barrier between #Mars’ #ionosphere and shocked solar wind under the radial #IMF for the first time.
An interesting article about the #ionosphere #sw #kurzwelle
I am still a shortwave noob.
#Shortwave #Radio Propagation and Seasonal Variations Explained – ICO Optics
https://www.ico-optics.org/shortwave-radio-propagation-and-seasonal-variations/