This active-source OBS experiment will take place at the Andreanoff segment of the Aleutian Arc. One strike line and two dip lines will be shot. The shooting ship is the R/V Marcus Langseth. The strike line runs just north of the Aleutians Islands. The two dip lines cross the arc and Aleutian Trench. Most OBS will carry a 3-component geophone (resonant frequency of 4.5 Hz) and a hydrophone. Because of the great water depths in the Trench, some stations deployed there will be moored above the seafloor and will carry a hydrophone only.
Notes
YM 2020 has separate SEED data. SIO SEGY data arrives 8/16/2021 from UCSD.
EarthScope Consortium operates the
NSF Geodetic Facility for the Advancement of Geoscience (GAGE)
and NSF Seismological Facility for the Advancement of Geoscience (SAGE).
Any opinions, findings and conclusions, or recommendations expressed
in this material do not necessarily reflect the views of the
U.S. National Science Foundation.