Brian Andrews
Brian Andrews is a Geographer with the Woods Hole Coastal and Marine Science Center.
Science and Products
Filter Total Items: 17
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Filter Total Items: 32
Geomorphic process fingerprints in submarine canyons
Submarine canyons are common features of continental margins worldwide. They are conduits that funnel vast quantities of sediment from the continents to the deep sea. Though it is known that submarine canyons form primarily from erosion induced by submarine sediment flows, we currently lack quantitative, empirically based expressions that describe the morphology of submarine canyon networks. Multi
Authors
Daniel S. Brothers, Uri S. ten Brink, Brian D. Andrews, Jason D. Chaytor, David C. Twichell
Shallow stratigraphic control on pockmark distribution in north temperate estuaries
Pockmark fields occur throughout northern North American temperate estuaries despite the absence of extensive thermogenic hydrocarbon deposits typically associated with pockmarks. In such settings, the origins of the gas and triggering mechanism(s) responsible for pockmark formation are not obvious. Nor is it known why pockmarks proliferate in this region but do not occur south of the glacial term
Authors
Laura L. Brothers, Joseph T. Kelley, Daniel F. Belknap, Walter A. Barnhardt, Brian D. Andrews, Christine Legere, John E. Hughes Clarke
High-resolution geophysical data from the inner continental shelf—Buzzards Bay, Massachusetts
The U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management (CZM) have cooperated to map approximately 410 square kilometers (km²) of the inner continental shelf in Buzzards Bay, Massachusetts. This report contains geophysical data collected by the USGS on three cruises conducted in 2009, 2010, and 2011, and additional bathymetry data collected by the National Oceanic
Authors
Seth D. Ackerman, Brian D. Andrews, David S. Foster, Wayne E. Baldwin, William C. Schwab
Geophysical and sampling data from the inner continental shelf: Northern Cape Cod Bay, Massachusetts
The U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management (CZM) have cooperated to map approximately 480 km2 of the inner continental shelf in northern Cape Cod Bay, MA. This report contains geophysical and sampling data collected by the USGS during five research cruises between 2006 and 2008. The geophysical data include (1) swath bathymetry from interferometric so
Authors
Brian D. Andrews, Seth D. Ackerman, Wayne E. Baldwin, Walter A. Barnhardt
Geologic controls on the recent evolution of oyster reefs in Apalachicola Bay and St. George Sound, Florida
Apalachicola Bay and St. George Sound contain the largest oyster fishery in Florida, and the growth and distribution of the numerous oyster reefs here are the combined product of modern estuarine conditions in the bay and its late Holocene evolution. Sidescan-sonar imagery, bathymetry, high-resolution seismic profiles, and sediment cores show that oyster beds occupy the crests of a series of shoal
Authors
D. Twichell, L. Edmiston, Brian Andrews, W. Stevenson, J. Donoghue, Richard Z. Poore, Lisa E. Osterman
Geophysical and sampling data from the inner continental shelf: Duxbury to Hull, Massachusetts
The U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management (CZM) have cooperated to map approximately 200 km² of the Massachusetts inner continental shelf between Duxbury and Hull. This report contains geophysical and geological data collected by the USGS on three cruises between 2006 and 2007. These USGS data are supplemented with a National Oceanic and Atmospheric
Authors
Walter A. Barnhardt, Seth D. Ackerman, Brian D. Andrews, Wayne E. Baldwin
Automated feature extraction and spatial organization of seafloor pockmarks, Belfast Bay, Maine, USA
Seafloor pockmarks occur worldwide and may represent millions of m3 of continental shelf erosion, but few numerical analyses of their morphology and spatial distribution of pockmarks exist. We introduce a quantitative definition of pockmark morphology and, based on this definition, propose a three-step geomorphometric method to identify and extract pockmarks from high-resolution swath bathymetry.
Authors
Brian D. Andrews, Laura L. Brothers, Walter A. Barnhardt
Submarine slides north of Puerto Rico and their tsunami potential
New multibeam bathymetry of the entire Puerto Rico trench reveals numerous retrograde slope failures at various scales at the edge of the carbonate platform north of Puerto Rico and the Virgin Islands. The slumped material comprises carbonate blocks, which fail, at least in initial stages, as a coherent rock mass. This, combined with the fact that the edge of the carbonate platform is steeper than
Authors
Uri S. ten Brink, Eric L. Geist, Patrick J. Lynett, Brian D. Andrews
Science and Products
Filter Total Items: 17
No Result Found
Filter Total Items: 32
Geomorphic process fingerprints in submarine canyons
Submarine canyons are common features of continental margins worldwide. They are conduits that funnel vast quantities of sediment from the continents to the deep sea. Though it is known that submarine canyons form primarily from erosion induced by submarine sediment flows, we currently lack quantitative, empirically based expressions that describe the morphology of submarine canyon networks. Multi
Authors
Daniel S. Brothers, Uri S. ten Brink, Brian D. Andrews, Jason D. Chaytor, David C. Twichell
Shallow stratigraphic control on pockmark distribution in north temperate estuaries
Pockmark fields occur throughout northern North American temperate estuaries despite the absence of extensive thermogenic hydrocarbon deposits typically associated with pockmarks. In such settings, the origins of the gas and triggering mechanism(s) responsible for pockmark formation are not obvious. Nor is it known why pockmarks proliferate in this region but do not occur south of the glacial term
Authors
Laura L. Brothers, Joseph T. Kelley, Daniel F. Belknap, Walter A. Barnhardt, Brian D. Andrews, Christine Legere, John E. Hughes Clarke
High-resolution geophysical data from the inner continental shelf—Buzzards Bay, Massachusetts
The U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management (CZM) have cooperated to map approximately 410 square kilometers (km²) of the inner continental shelf in Buzzards Bay, Massachusetts. This report contains geophysical data collected by the USGS on three cruises conducted in 2009, 2010, and 2011, and additional bathymetry data collected by the National Oceanic
Authors
Seth D. Ackerman, Brian D. Andrews, David S. Foster, Wayne E. Baldwin, William C. Schwab
Geophysical and sampling data from the inner continental shelf: Northern Cape Cod Bay, Massachusetts
The U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management (CZM) have cooperated to map approximately 480 km2 of the inner continental shelf in northern Cape Cod Bay, MA. This report contains geophysical and sampling data collected by the USGS during five research cruises between 2006 and 2008. The geophysical data include (1) swath bathymetry from interferometric so
Authors
Brian D. Andrews, Seth D. Ackerman, Wayne E. Baldwin, Walter A. Barnhardt
Geologic controls on the recent evolution of oyster reefs in Apalachicola Bay and St. George Sound, Florida
Apalachicola Bay and St. George Sound contain the largest oyster fishery in Florida, and the growth and distribution of the numerous oyster reefs here are the combined product of modern estuarine conditions in the bay and its late Holocene evolution. Sidescan-sonar imagery, bathymetry, high-resolution seismic profiles, and sediment cores show that oyster beds occupy the crests of a series of shoal
Authors
D. Twichell, L. Edmiston, Brian Andrews, W. Stevenson, J. Donoghue, Richard Z. Poore, Lisa E. Osterman
Geophysical and sampling data from the inner continental shelf: Duxbury to Hull, Massachusetts
The U.S. Geological Survey (USGS) and the Massachusetts Office of Coastal Zone Management (CZM) have cooperated to map approximately 200 km² of the Massachusetts inner continental shelf between Duxbury and Hull. This report contains geophysical and geological data collected by the USGS on three cruises between 2006 and 2007. These USGS data are supplemented with a National Oceanic and Atmospheric
Authors
Walter A. Barnhardt, Seth D. Ackerman, Brian D. Andrews, Wayne E. Baldwin
Automated feature extraction and spatial organization of seafloor pockmarks, Belfast Bay, Maine, USA
Seafloor pockmarks occur worldwide and may represent millions of m3 of continental shelf erosion, but few numerical analyses of their morphology and spatial distribution of pockmarks exist. We introduce a quantitative definition of pockmark morphology and, based on this definition, propose a three-step geomorphometric method to identify and extract pockmarks from high-resolution swath bathymetry.
Authors
Brian D. Andrews, Laura L. Brothers, Walter A. Barnhardt
Submarine slides north of Puerto Rico and their tsunami potential
New multibeam bathymetry of the entire Puerto Rico trench reveals numerous retrograde slope failures at various scales at the edge of the carbonate platform north of Puerto Rico and the Virgin Islands. The slumped material comprises carbonate blocks, which fail, at least in initial stages, as a coherent rock mass. This, combined with the fact that the edge of the carbonate platform is steeper than
Authors
Uri S. ten Brink, Eric L. Geist, Patrick J. Lynett, Brian D. Andrews