Extended Data Fig. 8: Wind conditions from sound recording.
From: Detection of triboelectric discharges during dust events on Mars
Distribution of wind intensity in microphone recording (blue, left axis) compared with the detection of discharges per wind bin (red, right axis). The wind intensity is computed as the root mean square pressure of the microphone signal in the 20–60-Hz frequency bandwidth31. This distribution is separated in three regimes: the low wind regime for wind intensity lower than 10−3 Pa, which corresponds to speed lower than 3 m s−1; the moderate wind regime from 10−3 to 10−2 Pa, which corresponds to wind speeds between 3 and 10 m s−1; and the high wind regime above 10−2 Pa, corresponding to speeds faster than 10 m s−1 (see ref. 31).
