ASCII formatted file of the 4-m bathymetry from the northern half of USGS survey 98015 of the Sea Floor off Eastern Cape Cod (CAPENORTH_GEO4M_XYZ.TXT, Geographic, NAD83)

This data set includes bathymetry of the sea floor offshore of eastern Cape Cod, Massachusetts. The data were collected with a multibeam sea floor mapping system during USGS survey 98015, conducted November 9 - 25, 1998. The surveys were conducted using a Simrad EM 1000 multibeam echosounder mounted aboard the Canadian Coast Guard vessel Frederick G. Creed. This multibeam system utilizes 60 electronically aimed receive beams spaced at intervals of 2.5 degrees that insonify a strip of sea floor up to 7.5 times the water depth (swath width of 100 to 200 m within the survey area). The horizontal resolution of the beam on the sea floor is approximately 10% of the water depth. Vertical resolution is approximately 1 percent of the water depth.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier USGS:230ac049-412d-4901-aa6e-18e85b5be47c
metadata_type geospatial
modified 20211116
old-spatial -70.307809, 41.966641, -69.828308, 42.116649
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 4415ae1712815fecf8709849862608e89f88e9f4
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-70.307809, 41.966641], [-70.307809, 42.116649], [ -69.828308, 42.116649], [ -69.828308, 41.966641], [-70.307809, 41.966641]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ascii-formatted-file
  • atlantic-ocean
  • bathymetry
  • bathymetry-and-elevation
  • bathymetry-measurement
  • cape-cod
  • cape-cod-national-seashore-park
  • ckan
  • cmgp
  • coastal-and-marine-geology-program
  • distributions
  • elevation
  • field-activity-number-98015
  • geo
  • geoss
  • marine-geophysics
  • massachusetts
  • multibeam-bathymetry
  • multibeam-echo-sounder
  • multibeam-sonar
  • national
  • north-america
  • oceans
  • seafloor-elevation
  • simrad-em1000
  • u-s-east-coast
  • u-s-geological-survey
  • united-states
  • usgs
  • usgs-230ac049-412d-4901-aa6e-18e85b5be47c
  • whsc
  • woods-hole-science-center
isopen False
license_id notspecified
license_title License not specified
maintainer Lawrence Poppe
maintainer_email lpoppe@usgs.gov
metadata_created 2025-11-20T21:45:06.586466
metadata_modified 2025-11-20T21:45:06.586470
notes This data set includes bathymetry of the sea floor offshore of eastern Cape Cod, Massachusetts. The data were collected with a multibeam sea floor mapping system during USGS survey 98015, conducted November 9 - 25, 1998. The surveys were conducted using a Simrad EM 1000 multibeam echosounder mounted aboard the Canadian Coast Guard vessel Frederick G. Creed. This multibeam system utilizes 60 electronically aimed receive beams spaced at intervals of 2.5 degrees that insonify a strip of sea floor up to 7.5 times the water depth (swath width of 100 to 200 m within the survey area). The horizontal resolution of the beam on the sea floor is approximately 10% of the water depth. Vertical resolution is approximately 1 percent of the water depth.
num_resources 2
num_tags 34
title ASCII formatted file of the 4-m bathymetry from the northern half of USGS survey 98015 of the Sea Floor off Eastern Cape Cod (CAPENORTH_GEO4M_XYZ.TXT, Geographic, NAD83)