Construction of a 3-arcsecond digital elevation model for the Gulf of Maine
Open-File Report
2011-1127
By: Erin R. Twomey and Richard P. Signell
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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.
Suggested Citation
Twomey, E.R., Signell, R.P., 2013, Construction of a 3-arcsecond digital elevation model for the Gulf of Maine: U.S. Geological Survey Open-File Report 2011-1127, HTML Document, https://doi.org/10.3133/ofr20111127.
ISSN: 2331-1258 (online)
Study Area
| 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 |
| DOI | 10.3133/ofr20111127 |
| 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 | HTML Document |
| Country | United States |
| State | Maine |
| Other Geospatial | Gulf Of Maine |
| Online Only (Y/N) | Y |
| Additional Online Files (Y/N) | Y |