Figure 7
From: Temporal patterns in the soundscape of a Norwegian gateway to the Arctic
Number of detection hours per day for frequencies between 200 Hz and 2 kHz, with contour detections representing modulated signals of humpback whales and odontocetes (top). Sound Pressure Level values for different 1/3 octave bands, grouped into 6-hour averages for visibility purposes (bottom). Grey segment bars indicate the sampling effort in days (i.e., gaps represent lack of acoustic data).
