1. Coastal and Marine Hazards and Resources
  2. Geoscience Data System
  3. Dataset 41214

Dataset description: Methane seep locations derived from water-column acoustic backscatter data collected along Cascadia Margin offshore Oregon and Northern California, 2018-2021

This dataset contains the locations of 902 methane cold seeps that were detected in acoustic water-column backscatter collected by the U.S. Geological Survey between 2018 to 2021. Rising bubbles emitting from methane seeps on the seafloor can be detected acoustically with multibeam echo sounding sonar used to collected seafloor bathymetric mapping data, which the USGS and NOAA have cooperatively collected along the Cascadia Margin offshore of northern California and Oregon for several years.
Version1
Keywordsmultibeam sonar, geospatial datasets
Formatshapefile;
Amount0.0662 MB

Contacts

Contact
James E Conrad
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Location of materials and files

Public fileshttps://doi.org/10.5066/P9TW2X7Y
Metadatahttps://cmgds.marine.usgs.gov/metadata/pcmsc/DataReleases/CMGDS_DR_tool/DR_P9TW2X7Y/USGS_Cascadia_Seeps_2023_metadata.xml
Outline - Questions and answers - Text - XML

Activities and equipment

ActivityEquipment
2018-642-FAmultibeam
Atlas Hydrosweep multibeam-echosounder
2019-636-FAKongsberg EM-710
Multibeam echo sounder
2021-643-FAmultibeam
Atlas Hydrosweep multibeam-echosounder