Seismic network.

• Main Authors: William S. D. Wilcock (3749737), Rose S. Hilmo (4537330)
• Format: Still Image
• Language: unknown
• Published: 2021
• Subjects: Biological Sciences not elsewhere classified; Mathematical Sciences not elsewhere classified; Physical Sciences not elsewhere classified; studying marine mammals; passive acoustic monitoring; ocean bottom seismometers; many spurious solutions; increasing sampling rates; future experiments might; div >< p; balaenoptera musculus </; widely spaced network; false positives must; obtain tracks using; least 20 locations; earliest arrival time; different b calls; true positives; large network; b call; vocalize extensively; smooth paths; seismic frequencies; requiring groups; pacific northwest; obtained iteratively; minimize changes; localize calls; including constraints; important tool; follow within; first harmonic; feasible time; distance window; detecting harmonics; describe methods; calls identified; approaches lead; 15 hz; Canada; Pacific; Balaenoptera musculus
• Online Access: https://doi.org/10.1371/journal.pone.0260273.g001

A bathymetric map of the continental margin and Cascadia Basin offshore the Pacific Northwest showing the configuration of the seismic network used to track blue whales. A total of 38 ocean bottom seismometers (OBSs) from the first year of the Cascadia Initiative (CI) experiment (triangles) were combined with three stations from the Ocean Networks Canada (ONC) NEPTUNE cabled observatory (circles). The full network was in operation from November 29, 2011, to May 13, 2012. Depths are shown by a color scale with contours at 200 m and 2500 m. The inset figure shows the location of the experiment on the globe. Bathymetric data were obtained from the Global Multi-Resolution Topography (GMRT) Synthesis (data DOI: 10.1594/IEDA.100001 ) [ 24 ] and are available for use under a CC BY 4.0 license. The figure was created with the Generic Mapping Tools software [ 25 ].