Woods Hole Coastal and Marine Science Center
Multimedia
Protected Species Observer aboard CCGS Louis S. St-Laurent
Protected Species Observer aboard CCGS Louis S. St-Laurent
U.S. and Canadian Ships in Arctic Ocean
Helicopter view of Canadian Coast Guard Ship Louis S. St. Laurent (top) and U.S. Coast Guard Cutter Healy (bottom) on the Arctic Ocean. This was during a scientific expedition to map the extended continental shelf in the Arctic Ocean.
Sonobuoy reciever launch
Launching a sonobuoy receiver off the end of CCGS Louis S. St-Laurent
Bathymetry surrounding Martha's Vineyard, MA
Oblique hillshaded-relief view of the bathymetry surrounding Martha’s Vineyard and the Upper Cape looking south across Buzzards Bay and Vineyard Sound
Swath Bathymetry
Swath bathymetry and derivative products such as slope, hillshaded relief, and rugosity maps provide information not only on water depth, but also the roughness and smoothness of the sea floor, which correlates with sea floor texture and depositional environment. The shaded-relief bathymetry image of the sea floor offshore of northeastern Massachusetts between Cape Ann and
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Sediment Textures
Inner continental shelf sediment textures within western Massachusetts Bay classified using Barnhardt and others (1998). Bottom photographs A-D show sediment texture in select locations (photograph locations are shown as white dots on the sediment texture map). Grain size statistics are plotted as pie charts showing the relative percentages of gravel, sand, and mud. A, A
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Data input heirarchy
Sediment texture and distribution data were mapped qualitatively in Esri ArcGIS using a hierarchical methodology. Backscatter data were the first input, followed by bathymetry, surficial geologic and shallow stratigraphic interpretations, and photograph and sample databases. DEM, digital elevation model.
Southern Gulf of Maine and Massachusetts coastal zone bathymetry
Image showing the bathymetry of the southern Gulf of Maine with the Massachusetts coastal zone boundary outlined in grey. The images on the right display how the geophysical and sample data are combined to create an interpretation of seafloor geology
Bathymetry of southern Gulf of Maine and Massachusetts coastal zone
Bathymetry of of the southern Gulf of Maine with the Massachusetts coastal zone boundary outlined in grey.
Shipwreck near Cuttyhunk, MA
Shaded relief backscatter image of a shipwreck near Cuttyhunk, MA
