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MassGIS Data: Offshore Bathymetry (1:250,000)

December 1999

This datalayer represents bathymetry data - seafloor topography - for ocean waters off the coast of Massachusetts.

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This datalayer represents bathymetry data - seafloor topography - for ocean waters off the coast of Massachusetts.  The layer was created by EOEEA Coastal Zone Management analysts for graphic display purposes only and is general in nature; it should not be used for navigation.  Polygons were delineated from a 1:250,000 USGS regional map. Ocean depth measurements are in meters.  The dataset is stored in ArcSDE as BTHOS250_POLY. Offshore Bathymetry

Attributes

The datalayer's polygon attribute table has the following items:
DEPTH_NOS Code number for depth range (see table below)
DEPTHRANGE Text field indicating depth below sea level, in meters
DEPTH_NOS DEPTHRANGE
1
  Above-15m
2
-15m to-25m
3
-25m to-40m
4
-40m to-90m
5
-90m to-200m
6
Below -200m

Maintenance

The layer is being maintained by MassGIS.

For more detailed offshore bathymetry see the Bathymetry of the Gulf of Maine datalayer.

Last Updated 12/18/2013

Items

Contributor
Modified Date
2017-12-29
Release Date
2017-12-29
Identifier
6da21703-9215-44af-b8b6-8e7b9a04a9e1
Spatial / Geographical Coverage Location
Massachusetts
License
Author
MassGIS
Contact Name
MassGIS
Contact Email
Public Access Level
Public
Data Quality
False
Content Type
Language
English (United States)