Nahant to Gloucester, Massachusetts Maximum Likelihood Bottom Classification (mlclass5)

These data are high-resolution maximum likelihood classification of the seafloor offshore of Massachusetts, from Nahant to Gloucester. Approximately 127 km² of the inner shelf were mapped in the nearshore region between the 10m and 40-m isobath.

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:643a1c40-a9e7-4728-af6f-7fda783d1961
metadata_type geospatial
modified 20200908
old-spatial -70.937266, 42.391023, -70.664555, 42.575257
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash e729081e50664237441694bc7185e9bb377f260c
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-70.937266, 42.391023], [-70.937266, 42.575257], [ -70.664555, 42.575257], [ -70.664555, 42.391023], [-70.937266, 42.391023]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • 2003
  • 2004
  • amerigeo
  • amerigeoss
  • arcgis-raster
  • atlantic-ocean
  • bathymetry
  • bottom-classification
  • bottom-type
  • ckan
  • cmgp
  • coastal-and-marine-geology-program
  • elevation
  • field-activity-serial-number-rafa03007
  • field-activity-serial-number-rafa04002
  • geo
  • geoscientificinformation
  • geospatial-datasets
  • geoss
  • gloucester
  • imagerybasemapsearthcover
  • interferometric-sonar
  • marine-geology
  • massachusetts-bay
  • nahant
  • national
  • north-america
  • salem-sound
  • scientific-interpretation
  • sea-floor-characteristics
  • seafloor
  • south-essex-ocean-sanctuary
  • swath-bathymetry
  • u-s-geological-survey
  • united-states
  • usgs
  • usgs-643a1c40-a9e7-4728-af6f-7fda783d1961
  • whsc
  • woods-hole-science-center
isopen False
license_id notspecified
license_title License not specified
maintainer Brian Andrews
maintainer_email bandrews@usgs.gov
metadata_created 2025-11-20T05:01:36.203685
metadata_modified 2025-11-20T05:01:36.203688
notes These data are high-resolution maximum likelihood classification of the seafloor offshore of Massachusetts, from Nahant to Gloucester. Approximately 127 km² of the inner shelf were mapped in the nearshore region between the 10m and 40-m isobath.
num_resources 2
num_tags 39
title Nahant to Gloucester, Massachusetts Maximum Likelihood Bottom Classification (mlclass5)