Every inch of the deck of the R/V Connecticut is covered by instrumented platforms awaiting deployment on the seafloor south of Fire Island NY in winter 2014.
Bradford Butman
Brad Butman is a Scientist Emeritus with the Woods Hole Coastal and Marine Science Center
Science and Products
Sea Floor Stress and Sediment Mobility Database
The U.S. Geological Survey Sea Floor Stress and Sediment Mobility Database contains estimates of wave-current bottom stress and sediment mobility for the U.S. Atlantic and Gulf Coast continental shelf regions.
Bathymetry and backscatter intensity of the sea floor of the Sandy Hook artificial reef, offshore of New Jersey
The Sandy Hook artificial reef, located on the sea floor offshore of Sandy Hook, New Jersey was built to create habitat for marine life. The reef was created by the placement of heavy materials on the sea floor; ninety-five percent of the material in the Sandy Hook reef is rock. In 2000, the U.S. Geological Survey surveyed the area using a Simrad EM1000 multibeam echosounder mounted on the Canadia
Bathymetry and backscatter intensity of the sea floor of the Atlantic Beach artificial reef, offshore of New York
The Atlantic Beach artificial reef, located on the sea floor 3 nautical miles south of Atlantic Beach, New York in about 20 meters water depth, was built to create habitat for marine life. The reef was originally created by placing heavy materials such as tires, automobile bodies and other vehicles, barges, and rock from a dredging project on the sea floor. In 2000, the U.S. Geological Survey surv
Bathymetry, backscatter intensity, and geomorphology of the sea floor of the Hudson Canyon and adjacent slope and rise
A multibeam survey was carried out in 2002 to map the bathymetry and backscatter intensity of the sea floor of the Hudson Canyon and adjacent slope and rise. The Canyon begins on the outer continental shelf off the eastern coast of the United States at about 100-meter (m) water depth and extends offshore southeastward across the continental slope and rise. The survey covered an area approximately
Bathymetry and backscatter intensity of the sea floor of the Hudson Shelf Valley
The Hudson Shelf Valley is the submerged seaward extension of the ancestral Hudson River drainage system and is the largest physiographic feature on the Middle Atlantic continental shelf. The valley begins offshore of New York and New Jersey at about 30-meter (m) water depth, runs southerly and then southeasterly across the Continental Shelf, and terminates on the outer shelf at about 85-m water d
Bathymetry and backscatter intensity of the sea floor of the Historic Area Remediation Site in 1996, 1998, and 2000
Surveys of the bathymetry and backscatter intensity of the sea floor of the Historic Area Remediation Site (HARS), offshore of New York and New Jersey, were carried out in 1996, 1998, and 2000 using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The objective of the multiple echosounder surveys was to map the bathymetry and surficial sediments ov
Bathymetry and Backscatter Intensity of the Sea Floor South of Long Island, New York
Surveys of the bathymetry and backscatter intensity of the sea floor south of Long Island, New York, were carried out in November 1998 using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The purpose of the multibeam echosounder surveys was to explore the bathymetry and backscatter intensity of the sea floor in several areas off the southern coas
Map showing distribution of surficial sediment, Gulf of Maine and Georges Bank
No abstract available.
Bathymetric map of Lydonia Canyon, U.S. Atlantic Outer Continental Shelf
Lydonia Canyon is one of several large submarine canyons that indent the eastern U.S. Continental Shelf along the southern flank of Georges Bank (Index map). This bathymetric map of the upper part of Lydonia Canyon (water depths shallower than about 2,00 m) was prepared as part of a study of the physical oceanography and geology of Lydonia Canyon (Butman and others, 1983; Twichell, 1983). An acc
Interpretation of graphic data on potential geologic hazards on the southeastern United States Atlantic continental shelf
This report presents and analyzes seismic-survey data and bottom-instrument data as they pertain to a regional assessment of potential geologic hazards and other constraints to petroleum exploration and development on the southeastern United States Continental Shelf (see fig. 1).
Oceanographic equipment covering the R/V Connecticut's deck
Oceanographic equipment covering the R/V Connecticut's deck
Every inch of the deck of the R/V Connecticut is covered by instrumented platforms awaiting deployment on the seafloor south of Fire Island NY in winter 2014.
Filter Total Items: 86
Observations and a linear model of water level in an interconnected inlet-bay system
A system of barrier islands and back-barrier bays occurs along southern Long Island, New York, and in many coastal areas worldwide. Characterizing the bay physical response to water level fluctuations is needed to understand flooding during extreme events and evaluate their relation to geomorphological changes. Offshore sea level is one of the main drivers of water level fluctuations in semienclos
Authors
Alfredo Aretxabaleta, Neil K. Ganju, Bradford Butman, Richard P. Signell
Characteristics of storms driving wave-induced seafloor mobility on the U.S. East Coast continental shelf
This study investigates the relationship between spatial and temporal patterns of wave-driven sediment mobility events on the U.S. East Coast continental shelf and the characteristics of the storms responsible for them. Mobility events, defined as seafloor wave stress exceedance of the critical stress of 0.35 mm diameter sand (0.2160 Pa) for 12 or more hours, were identified from surface wave obse
Authors
P. Soupy Dalyander, Bradford Butman
Alexandrium fundyense cysts in the Gulf of Maine: long-term time series of abundance and distribution, and linkages to past and future blooms
Here we document Alexandrium fundyense cyst abundance and distribution patterns over nine years (1997 and 2004–2011) in the coastal waters of the Gulf of Maine (GOM) and identify linkages between those patterns and several metrics of the severity or magnitude of blooms occurring before and after each autumn cyst survey. We also explore the relative utility of two measures of cyst abundance and dem
Authors
Donald M. Anderson, Bruce A. Keafer, Judith L. Kleindinst, Dennis J. McGillicuddy, Jennifer L. Martin, Kerry Norton, Cynthia H. Pilskaln, Juliette L. Smith, Christopher R. Sherwood, Bradford Butman
The vertical structure of the circulation and dynamics in Hudson Shelf Valley
Hudson Shelf Valley is a 20–30 m deep, 5–10 km wide v-shaped submarine valley that extends across the Middle Atlantic Bight continental shelf. The valley provides a conduit for cross-shelf exchange via along-valley currents of 0.5 m s−1 or more. Current profile, pressure, and density observations collected during the winter of 1999–2000 are used to examine the vertical structure and dynamics of th
Authors
Steven J. Lentz, Bradford Butman, Courtney K. Harris
Investigating the importance of sediment resuspension in Alexandrium fundyense cyst population dynamics in the Gulf of Maine
Cysts of Alexandrium fundyense, a dinoflagellate that causes toxic algal blooms in the Gulf of Maine, spend the winter as dormant cells in the upper layer of bottom sediment or the bottom nepheloid layer and germinate in spring to initiate new blooms. Erosion measurements were made on sediment cores collected at seven stations in the Gulf of Maine in the autumn of 2011 to explore if resuspension (
Authors
Bradford Butman, Alfredo L. Aretxabaleta, Patrick J. Dickhudt, P. Soupy Dalyander, Christopher R. Sherwood, Donald M. Anderson, Bruce A. Keafer, Richard P. Signell
Water level response in back-barrier bays unchanged following Hurricane Sandy
On 28–30 October 2012, Hurricane Sandy caused severe flooding along portions of the northeast coast of the United States and cut new inlets across barrier islands in New Jersey and New York. About 30% of the 20 highest daily maximum water levels observed between 2007 and 2013 in Barnegat and Great South Bay occurred in 5 months following Hurricane Sandy. Hurricane Sandy provided a rare opportunity
Authors
Alfredo L. Aretxabaleta, Bradford Butman, Neil K. Ganju
Near-bottom circulation and dispersion of sediment containing Alexandrium fundyense cysts in the Gulf of Maine during 2010-2011
The life cycle of Alexandrium fundyense in the Gulf of Maine includes a dormant cyst stage that spends the winter predominantly in the bottom sediment. Wave-current bottom stress caused by storms and tides induces resuspension of cyst-containing sediment during winter and spring. Resuspended sediment could be transported by water flow to different locations in the Gulf and the redistribution of se
Authors
Alfredo L. Aretxabaleta, Bradford Butman, Richard P. Signell, P. Soupy Dalyander, Christopher R. Sherwood, Vitalii A. Sheremet, Dennis J. McGillicuddy
Characterizing wave- and current- induced bottom shear stress: U.S. middle Atlantic continental shelf
Waves and currents create bottom shear stress, a force at the seabed that influences sediment texture distribution, micro-topography, habitat, and anthropogenic use. This paper presents a methodology for assessing the magnitude, variability, and driving mechanisms of bottom stress and resultant sediment mobility on regional scales using numerical model output. The analysis was applied to the Middl
Authors
P. Soupy Dalyander, Bradford Butman, Christopher R. Sherwood, Richard P. Signell, John L. Wilkin
Documentation of the U.S. Geological Survey sea floor stress and sediment mobility database
The U.S. Geological Survey Sea Floor Stress and Sediment Mobility Database contains estimates of bottom stress and sediment mobility for the U.S. continental shelf. This U.S. Geological Survey database provides information that is needed to characterize sea floor ecosystems and evaluate areas for human use. The estimates contained in the database are designed to spatially and seasonally resolve th
Authors
P. Soupy Dalyander, Bradford Butman, Christopher R. Sherwood, Richard P. Signell
Exploring the erodibility of sediments and harmful algal blooms in the Gulf of Maine
Investigators at the U.S. Geological Survey (USGS) are cooperating with scientists at Woods Hole Oceanographic Institution (WHOI) to investigate harmful algal blooms along the New England coast in the Gulf of Maine. These blooms are caused by cysts of the dinoflagellate Alexandrium fundyense that overwinter in the bottom sediments and germinate in spring. Depending on conditions such as temperatur
Authors
Bradford Butman, Patrick J. Dickhudt, Bruce A. Keafer
Review of Oceanographic and Geochemical Data Collected in Massachusetts Bay during a Large Discharge of Total Suspended Solids from Boston's Sewage-Treatment System and Ocean Outfall in August 2002
During the period August 14-23, 2002, the discharge of total suspended solids (TSS) from the Massachusetts Water Resources Authority sewage-treatment plant ranged from 32 to 132 milligrams per liter, causing the monthly average discharge to exceed the limit specified in the National Pollution Discharge Elimination System permit. Time-series monitoring data collected by the U.S. Geological Survey i
Authors
Michael H. Bothner, Bradford Butman, Michael A. Casso
Long-term oceanographic observations in Massachusetts Bay, 1989-2006
This data report presents long-term oceanographic observations made in western Massachusetts Bay at long-term site A (LT-A) (42 deg 22.6' N., 70 deg 47.0' W.; nominal water depth 32 meters) from December 1989 through February 2006 and long-term site B (LT-B) (42 deg 9.8' N., 70 deg 38.4' W.; nominal water depth 22 meters) from October 1997 through February 2004 (fig. 1). The observations were coll
Authors
Bradford Butman, P. Soupy Alexander, Michael H. Bothner, Jonathan Borden, Michael A. Casso, Benjamin T. Gutierrez, Mary E. Hastings, Frances L. Lightsom, Marinna A. Martini, Ellyn T. Montgomery, Richard R. Rendigs, William S. Strahle
Science and Products
Sea Floor Stress and Sediment Mobility Database
The U.S. Geological Survey Sea Floor Stress and Sediment Mobility Database contains estimates of wave-current bottom stress and sediment mobility for the U.S. Atlantic and Gulf Coast continental shelf regions.
Bathymetry and backscatter intensity of the sea floor of the Sandy Hook artificial reef, offshore of New Jersey
The Sandy Hook artificial reef, located on the sea floor offshore of Sandy Hook, New Jersey was built to create habitat for marine life. The reef was created by the placement of heavy materials on the sea floor; ninety-five percent of the material in the Sandy Hook reef is rock. In 2000, the U.S. Geological Survey surveyed the area using a Simrad EM1000 multibeam echosounder mounted on the Canadia
Bathymetry and backscatter intensity of the sea floor of the Atlantic Beach artificial reef, offshore of New York
The Atlantic Beach artificial reef, located on the sea floor 3 nautical miles south of Atlantic Beach, New York in about 20 meters water depth, was built to create habitat for marine life. The reef was originally created by placing heavy materials such as tires, automobile bodies and other vehicles, barges, and rock from a dredging project on the sea floor. In 2000, the U.S. Geological Survey surv
Bathymetry, backscatter intensity, and geomorphology of the sea floor of the Hudson Canyon and adjacent slope and rise
A multibeam survey was carried out in 2002 to map the bathymetry and backscatter intensity of the sea floor of the Hudson Canyon and adjacent slope and rise. The Canyon begins on the outer continental shelf off the eastern coast of the United States at about 100-meter (m) water depth and extends offshore southeastward across the continental slope and rise. The survey covered an area approximately
Bathymetry and backscatter intensity of the sea floor of the Hudson Shelf Valley
The Hudson Shelf Valley is the submerged seaward extension of the ancestral Hudson River drainage system and is the largest physiographic feature on the Middle Atlantic continental shelf. The valley begins offshore of New York and New Jersey at about 30-meter (m) water depth, runs southerly and then southeasterly across the Continental Shelf, and terminates on the outer shelf at about 85-m water d
Bathymetry and backscatter intensity of the sea floor of the Historic Area Remediation Site in 1996, 1998, and 2000
Surveys of the bathymetry and backscatter intensity of the sea floor of the Historic Area Remediation Site (HARS), offshore of New York and New Jersey, were carried out in 1996, 1998, and 2000 using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The objective of the multiple echosounder surveys was to map the bathymetry and surficial sediments ov
Bathymetry and Backscatter Intensity of the Sea Floor South of Long Island, New York
Surveys of the bathymetry and backscatter intensity of the sea floor south of Long Island, New York, were carried out in November 1998 using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The purpose of the multibeam echosounder surveys was to explore the bathymetry and backscatter intensity of the sea floor in several areas off the southern coas
Map showing distribution of surficial sediment, Gulf of Maine and Georges Bank
No abstract available.
Bathymetric map of Lydonia Canyon, U.S. Atlantic Outer Continental Shelf
Lydonia Canyon is one of several large submarine canyons that indent the eastern U.S. Continental Shelf along the southern flank of Georges Bank (Index map). This bathymetric map of the upper part of Lydonia Canyon (water depths shallower than about 2,00 m) was prepared as part of a study of the physical oceanography and geology of Lydonia Canyon (Butman and others, 1983; Twichell, 1983). An acc
Interpretation of graphic data on potential geologic hazards on the southeastern United States Atlantic continental shelf
This report presents and analyzes seismic-survey data and bottom-instrument data as they pertain to a regional assessment of potential geologic hazards and other constraints to petroleum exploration and development on the southeastern United States Continental Shelf (see fig. 1).
Oceanographic equipment covering the R/V Connecticut's deck
Oceanographic equipment covering the R/V Connecticut's deck
Every inch of the deck of the R/V Connecticut is covered by instrumented platforms awaiting deployment on the seafloor south of Fire Island NY in winter 2014.
Every inch of the deck of the R/V Connecticut is covered by instrumented platforms awaiting deployment on the seafloor south of Fire Island NY in winter 2014.
Filter Total Items: 86
Observations and a linear model of water level in an interconnected inlet-bay system
A system of barrier islands and back-barrier bays occurs along southern Long Island, New York, and in many coastal areas worldwide. Characterizing the bay physical response to water level fluctuations is needed to understand flooding during extreme events and evaluate their relation to geomorphological changes. Offshore sea level is one of the main drivers of water level fluctuations in semienclos
Authors
Alfredo Aretxabaleta, Neil K. Ganju, Bradford Butman, Richard P. Signell
Characteristics of storms driving wave-induced seafloor mobility on the U.S. East Coast continental shelf
This study investigates the relationship between spatial and temporal patterns of wave-driven sediment mobility events on the U.S. East Coast continental shelf and the characteristics of the storms responsible for them. Mobility events, defined as seafloor wave stress exceedance of the critical stress of 0.35 mm diameter sand (0.2160 Pa) for 12 or more hours, were identified from surface wave obse
Authors
P. Soupy Dalyander, Bradford Butman
Alexandrium fundyense cysts in the Gulf of Maine: long-term time series of abundance and distribution, and linkages to past and future blooms
Here we document Alexandrium fundyense cyst abundance and distribution patterns over nine years (1997 and 2004–2011) in the coastal waters of the Gulf of Maine (GOM) and identify linkages between those patterns and several metrics of the severity or magnitude of blooms occurring before and after each autumn cyst survey. We also explore the relative utility of two measures of cyst abundance and dem
Authors
Donald M. Anderson, Bruce A. Keafer, Judith L. Kleindinst, Dennis J. McGillicuddy, Jennifer L. Martin, Kerry Norton, Cynthia H. Pilskaln, Juliette L. Smith, Christopher R. Sherwood, Bradford Butman
The vertical structure of the circulation and dynamics in Hudson Shelf Valley
Hudson Shelf Valley is a 20–30 m deep, 5–10 km wide v-shaped submarine valley that extends across the Middle Atlantic Bight continental shelf. The valley provides a conduit for cross-shelf exchange via along-valley currents of 0.5 m s−1 or more. Current profile, pressure, and density observations collected during the winter of 1999–2000 are used to examine the vertical structure and dynamics of th
Authors
Steven J. Lentz, Bradford Butman, Courtney K. Harris
Investigating the importance of sediment resuspension in Alexandrium fundyense cyst population dynamics in the Gulf of Maine
Cysts of Alexandrium fundyense, a dinoflagellate that causes toxic algal blooms in the Gulf of Maine, spend the winter as dormant cells in the upper layer of bottom sediment or the bottom nepheloid layer and germinate in spring to initiate new blooms. Erosion measurements were made on sediment cores collected at seven stations in the Gulf of Maine in the autumn of 2011 to explore if resuspension (
Authors
Bradford Butman, Alfredo L. Aretxabaleta, Patrick J. Dickhudt, P. Soupy Dalyander, Christopher R. Sherwood, Donald M. Anderson, Bruce A. Keafer, Richard P. Signell
Water level response in back-barrier bays unchanged following Hurricane Sandy
On 28–30 October 2012, Hurricane Sandy caused severe flooding along portions of the northeast coast of the United States and cut new inlets across barrier islands in New Jersey and New York. About 30% of the 20 highest daily maximum water levels observed between 2007 and 2013 in Barnegat and Great South Bay occurred in 5 months following Hurricane Sandy. Hurricane Sandy provided a rare opportunity
Authors
Alfredo L. Aretxabaleta, Bradford Butman, Neil K. Ganju
Near-bottom circulation and dispersion of sediment containing Alexandrium fundyense cysts in the Gulf of Maine during 2010-2011
The life cycle of Alexandrium fundyense in the Gulf of Maine includes a dormant cyst stage that spends the winter predominantly in the bottom sediment. Wave-current bottom stress caused by storms and tides induces resuspension of cyst-containing sediment during winter and spring. Resuspended sediment could be transported by water flow to different locations in the Gulf and the redistribution of se
Authors
Alfredo L. Aretxabaleta, Bradford Butman, Richard P. Signell, P. Soupy Dalyander, Christopher R. Sherwood, Vitalii A. Sheremet, Dennis J. McGillicuddy
Characterizing wave- and current- induced bottom shear stress: U.S. middle Atlantic continental shelf
Waves and currents create bottom shear stress, a force at the seabed that influences sediment texture distribution, micro-topography, habitat, and anthropogenic use. This paper presents a methodology for assessing the magnitude, variability, and driving mechanisms of bottom stress and resultant sediment mobility on regional scales using numerical model output. The analysis was applied to the Middl
Authors
P. Soupy Dalyander, Bradford Butman, Christopher R. Sherwood, Richard P. Signell, John L. Wilkin
Documentation of the U.S. Geological Survey sea floor stress and sediment mobility database
The U.S. Geological Survey Sea Floor Stress and Sediment Mobility Database contains estimates of bottom stress and sediment mobility for the U.S. continental shelf. This U.S. Geological Survey database provides information that is needed to characterize sea floor ecosystems and evaluate areas for human use. The estimates contained in the database are designed to spatially and seasonally resolve th
Authors
P. Soupy Dalyander, Bradford Butman, Christopher R. Sherwood, Richard P. Signell
Exploring the erodibility of sediments and harmful algal blooms in the Gulf of Maine
Investigators at the U.S. Geological Survey (USGS) are cooperating with scientists at Woods Hole Oceanographic Institution (WHOI) to investigate harmful algal blooms along the New England coast in the Gulf of Maine. These blooms are caused by cysts of the dinoflagellate Alexandrium fundyense that overwinter in the bottom sediments and germinate in spring. Depending on conditions such as temperatur
Authors
Bradford Butman, Patrick J. Dickhudt, Bruce A. Keafer
Review of Oceanographic and Geochemical Data Collected in Massachusetts Bay during a Large Discharge of Total Suspended Solids from Boston's Sewage-Treatment System and Ocean Outfall in August 2002
During the period August 14-23, 2002, the discharge of total suspended solids (TSS) from the Massachusetts Water Resources Authority sewage-treatment plant ranged from 32 to 132 milligrams per liter, causing the monthly average discharge to exceed the limit specified in the National Pollution Discharge Elimination System permit. Time-series monitoring data collected by the U.S. Geological Survey i
Authors
Michael H. Bothner, Bradford Butman, Michael A. Casso
Long-term oceanographic observations in Massachusetts Bay, 1989-2006
This data report presents long-term oceanographic observations made in western Massachusetts Bay at long-term site A (LT-A) (42 deg 22.6' N., 70 deg 47.0' W.; nominal water depth 32 meters) from December 1989 through February 2006 and long-term site B (LT-B) (42 deg 9.8' N., 70 deg 38.4' W.; nominal water depth 22 meters) from October 1997 through February 2004 (fig. 1). The observations were coll
Authors
Bradford Butman, P. Soupy Alexander, Michael H. Bothner, Jonathan Borden, Michael A. Casso, Benjamin T. Gutierrez, Mary E. Hastings, Frances L. Lightsom, Marinna A. Martini, Ellyn T. Montgomery, Richard R. Rendigs, William S. Strahle