Sounds of the Earth - Madagascan Pygmy Blue Whale (acceleration 9.6x) скачать в хорошем качестве

Sounds of the Earth - Madagascan Pygmy Blue Whale (acceleration 9.6x)

A stereo spectrogram of Madagascan pygmy blue whale vocalisations, recorded in the southwestern Indian Ocean. The series of calls alternates between a ‘multiphonic’ call consisting of a fundamental note at approximately 12 Hz with its 2nd and 4th harmonic (intervals of fifth and third respectively) stacked on top and a second call that swoops down by approximately a tone around 24 Hz. This stereo track is a rendering of the 3 components of the motion of the seafloor at a 4.582 km depth, in the southwest Indian Ocean. The seismograms were recorded on 28 May, 2013, between 2.35 and 3.00 GMT by the ocean-bottom seismic station RR47 of the RHUM-RUM network (27.70S, 65.76E) (http://www.rhum-rum.net) (Dréo, R. et al 2018). https://www.soundsoftheearth.ie https://www.dias.ie