Inversion layer forecast

Prévisions modification index de réfraction - Refractive index forecast

Refractive index N evaluation

Refractive index is computed for 4 layers from 975mb to 850 mb height
see : Tropospheric propagation
and : 144 MHz Long Distance Radio Propagation from Western Europe into the Atlantic Ocean

All comments and feedback are wellcome. Send me an email!

[ Computed from datas issued at 06 h UTC ] Update around 6h30,13h30,18h45 and 23h45 CEST

Refractive index forecast for Europe

Place mouse on map to stop animation


For over areas please visit:


Example with tropo opening on 2012 sept 15-16

(c) F5LEN - 2004 - 2017
(c) F5LEN - 2004 - 2017