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Earth, Planets and Space
Fig. 5 | Earth, Planets and Space

Fig. 5

From: Ionospheric signatures of the April 25, 2015 Nepal earthquake and the relative role of compression and advection for Doppler sounding of infrasound in the ionosphere

Fig. 5

Infrasound ray tracing results for the Czech Republic; a rays in the vertical plane, b evolution of elevation angle ε (solid) and zenith angle α (dashed) with height, c time of propagation to a specific altitude, d modeled w/v Z ratio (solid—theoretical maximum; dashed—with attenuation for the central frequency of 0.0455 Hz; dotted—with attenuation for the frequencies of 0.035 and 0.056 Hz). See the “Reflection heights” and “Wave amplitudes” sections for more details

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