Data were collected aboard NOAA’s (National Oceanic and Atmospheric Administration) Rainier research vessel, funded by the Buereau of Ocean Energy Management (BOEM) in order to adequately address potential impacts in environmental impact statements and environmental assessments under the National Environmental Policy Act (NEPA).
These data were collected as part of the California Deepwater Investigations and Groundtruthing (Cal DIG I) project, which focuses on the offshore south-central region of California at water depths of 500 to 1,200 meters, in Federal waters outside of the State of California three nautical mile limit. The goal of study is to conduct a reconnaissance survey of the outer continental shelf of south-central California for the purpose of improving regional models of seafloor (benthic) habitats, geologic hazards, and sedimentary processes. Geophysical and geological data from this project are needed to address important issues associated with marine spatial planning, ecosystem assessments, geohazards, and offshore infrastructure.
Are there legal restrictions on access or use of the data?
Use_Constraints:USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator of the dataset and in products derived from these data. This information is not intended for navigation purposes.
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
|Data format:||Processed, high-resolution Chirp seismic-reflection data per navigation line. File sizes range from 4.1 MB to 805.8 MB. in format SEG-Y (version SEGY rev 1) Size: 805.8|
Use of SEG-Y data requires specialized software, such as ProMax and Seisworks by Landmark Geophysical; FOCUS and SeisX by Paradigm Geophysical; SPW by Parallel Geoscience; VISTA by Seismic Image Software; SeiSee by Dalmorneftegeophysica (DMNG); amongst others.