Multichannel minisparker seismic-reflection and chirp subbottom data collected offshore Northern California during USGS field activity 2019-643-FA

By Alicia F. Balster-Gee, Jenna C. Hill, Janet T. Watt, Daniel S. Brothers, Nora M. Nieminski, Travis V. Alongi, Gerry A. Hatcher, and Brandon M. Nasr

https://doi.org/10.5066/P998EC72


Dates

Published: July 20, 2023

Summary

High-resoulution multichannel seismic-reflection (MCS) and Chirp sub-bottom data were collected by the U.S. Geological Survey in 2019 offshore Humboldt County of northern California to expand data coverage along the southern Cascadia Margin. Data were acquired to characterize offshore faults and to study sediment distribution. MCS and Chirp data were collected coincidentally and were used to determine sediment core targets for marine geohazard studies. These data and information are intended for science researchers, students, policy makers, and general public.

Sparker Data

  • Multichannel minisparker seismic-reflection data collected offshore Northern California during USGS field activity 2019-643-FA

    High-resolution multichannel seismic (MCS) data were collected by the U.S. Geological Survey in 2019 offshore Humboldt County of northern California to expand data coverage along the southern Cascadia Margin.

    Data Files

    2019-643-FA.mcs.segy.zip - 6.9 GB

    Metadata Files

    2019-643-FA.mcs.metadata.xml - 15.0 KB

    2019-643-FA.mcs.metadata.txt - 14.5 KB

    Preview of dataset
    Map of MCS tracklines collected during USGS field activity 2019-643-FA

Sub Bottom Profiler Data

  • Chirp sub-bottom data collected offshore Northern California during USGS field activity 2019-643-FA

    Chirp sub-bottom data were collected by the U.S. Geological Survey in 2019 offshore Humboldt County of northern California to expand data coverage along the southern Cascadia Margin.

    Data Files

    2019-643-FA.chirp.segy.zip - 15.8 GB

    Metadata Files

    2019-643-FA.chirp.metadata.xml - 14.4 KB

    2019-643-FA.chirp.metadata.txt - 13.9 KB

    Preview of dataset
    Map of chirp subbottom tracklines collected during USGS field acticity 2019-643-FA

Suggested Citation

Balster-Gee, A.F., Hill, J.C., Watt, J.T., Brothers, D.S., Nieminski, N.M., Alongi, T., Hatcher, G.A., Nasr, B.M., 2023, Multichannel minisparker seismic-reflection and chirp subbottom data collected offshore Northern California during USGS field activity 2019-643-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P998EC72.

Overview Image

Overview image of data release
Map of seismic tracklines acquired during USGS field activity 2019-643-FA.

Overview Map