USGS Seafloor Mapping CORLISS 98014 Seismic Data

This CD-ROM contains digital high resolution seismic-reflection and bathymetric data collected during the USGS CORLISS 98014 cruise during Aug. 25 to Sept. 15, 1998.  The study area covers the Columbia River estuary, Willapa Bay, and the inner shelf off southern Washington.  The seismic-reflection data are stored as SEG-Y standard format that can be read and manipulated by most seismic processing software.  Much of the information specific to the data are contained in the headers of the SEG-Y format files.  The file system format is ISO 9660 Romeo which can be read with Windows 95/98, Windows NT, Unix, and Macintosh operating systems with the appropriate CD-ROM driver software installed.  The navigation and bathymetric data are stored as an ASCII file with the navigation and depth information logged mostly at a 10 second interval.   Blatantly bad bathymetric values were replaced with a value of 9999.  Depths are presented in meters from the sea surface (assuming a speed of sound in water of 1450 m/sec).  Both raw and tidally corrected depths are present in the navigation file.

Data and Resources

Field Value
accessLevel public
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identifier USGS:4defcf5f-74d0-44a4-a0f4-1e6f8357fda0
metadata_type geospatial
modified 20211116
old-spatial -124.5, 46.0, -123.25, 47.2
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash cabce20a012c0e48382b356fa312c854589a154d
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-124.5, 46.0], [-124.5, 47.2], [ -123.25, 47.2], [ -123.25, 46.0], [-124.5, 46.0]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • 3-5-khz
  • amerigeo
  • amerigeoss
  • boomer
  • ckan
  • columbia-river-estuary
  • distributions
  • geo
  • geopulse
  • geoss
  • inner-shelf-off-southern-washington
  • iso-9660-romeo-cd-rom
  • marine-geophysics
  • national
  • north-america
  • or
  • oregon
  • pacific-ocean
  • seg-y
  • seismic-reflection
  • seismic-reflection-methods
  • seismic-reflection-profiling
  • sparker
  • sub-bottom-profiling
  • substrate
  • united-states
  • usgs-4defcf5f-74d0-44a4-a0f4-1e6f8357fda0
  • wa
  • washington
  • willapa-bay
isopen False
license_id notspecified
license_title License not specified
maintainer Twichell, Dave
maintainer_email dtwichell@usgs.gov
metadata_created 2025-11-21T01:06:18.432916
metadata_modified 2025-11-21T01:06:18.432920
notes This CD-ROM contains digital high resolution seismic-reflection and bathymetric data collected during the USGS CORLISS 98014 cruise during Aug. 25 to Sept. 15, 1998.  The study area covers the Columbia River estuary, Willapa Bay, and the inner shelf off southern Washington.  The seismic-reflection data are stored as SEG-Y standard format that can be read and manipulated by most seismic processing software.  Much of the information specific to the data are contained in the headers of the SEG-Y format files.  The file system format is ISO 9660 Romeo which can be read with Windows 95/98, Windows NT, Unix, and Macintosh operating systems with the appropriate CD-ROM driver software installed.  The navigation and bathymetric data are stored as an ASCII file with the navigation and depth information logged mostly at a 10 second interval.   Blatantly bad bathymetric values were replaced with a value of 9999.  Depths are presented in meters from the sea surface (assuming a speed of sound in water of 1450 m/sec).  Both raw and tidally corrected depths are present in the navigation file.
num_resources 2
num_tags 30
title USGS Seafloor Mapping CORLISS 98014 Seismic Data