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Construction of a 3-arcsecond digital elevation model for the Gulf of Maine

Open-File Report 2011-1127

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Abstract

A system-wide description of the seafloor topography is a basic requirement for most coastal oceanographic studies. The necessary detail of the topography obviously varies with application, but for many uses, a nominal resolution of roughly 100 m is sufficient. Creating a digital bathymetric grid with this level of resolution can be a complex procedure due to a multiplicity of data sources, data coverages, datums and interpolation procedures. This report documents the procedures used to construct a 3-arcsecond (approximately 90-meter grid cell size) digital elevation model for the Gulf of Maine (71°30' to 63° W, 39°30' to 46° N). We obtained elevation and bathymetric data from a variety of American and Canadian sources, converted all data to the North American Datum of 1983 for horizontal coordinates and the North American Vertical Datum of 1988 for vertical coordinates, used a combination of automatic and manual techniques for quality control, and interpolated gaps using a surface-fitting routine.

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Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Construction of a 3-arcsecond digital elevation model for the Gulf of Maine
Series title:
Open-File Report
Series number:
2011-1127
Year Published:
2013
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Woods Hole Coastal and Marine Science Center
Description:
OFR 2011-1127 Title Page; HTML Document
Country:
United States
State:
Maine
Other Geospatial:
Gulf Of Maine
Online Only (Y/N):
Y
Additional Online Files(Y/N):
Y