William W Danforth, M.S. Geology
Geologist with a demonstrated history in the marine industry and with 30+ years work experience at the U.S. Geological Survey. Skilled in Petrology/Minerology, Earth Science, Marine Science, Geophysical Surveying, GPS Navigation, and Computer Technology/Programming.
Career has focused on the advances in the technology and techniques used to collect, analyze, and publish marine remote sensing data (multibeam, sidescan, seismic reflection, navigation) over the last 30+ years.
Professional Experience
1988 - Present, Geologist, USGS Woods Hole
1986-1988, System Administrator, NOAA Anchorage OAD office
1985 -1986, Physical Science Technician, USGS Woods Hole
Education and Certifications
M.S. University of Rhode Island, Geology/Petrology
Science and Products
Filter Total Items: 18
Bathymetry and backscatter intensity of the sea floor of the Hudson Shelf Valley 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...
Bathymetry and backscatter intensity of the sea floor of the Historic Area Remediation Site in 1996, 1998, and 2000 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...
High-resolution geophysical data collected along the Delmarva Peninsula 2015, U.S. Geological Survey Field Activity 2015-001-FA High-resolution geophysical data collected along the Delmarva Peninsula 2015, U.S. Geological Survey Field Activity 2015-001-FA
The Delmarva Peninsula is a 220-kilometer-long headland, spit, and barrier island complex that was significantly affected by Hurricane Sandy in the fall of 2012. The U.S. Geological Survey conducted cruises during the summers of 2014 and 2015 to map the inner continental shelf of the Delmarva Peninsula using geophysical and sampling techniques to define the geologic framework that...
Bathymetry and Backscatter Intensity of the Sea Floor South of Long Island, New York 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...
Swath bathymetry collected offshore of Fire Island and western Long Island, New York in 2014, U.S. Geological Field Activity 2014-072-FA Swath bathymetry collected offshore of Fire Island and western Long Island, New York in 2014, U.S. Geological Field Activity 2014-072-FA
Swath bathymetric data were collected offshore of Fire Island and western Long Island, New York in 2014 as a part of a collaborative effort between the U.S. Army Corps and USGS to assess the impact of Hurricane Sandy on this coastal region. These data were compared to swath bathymetric data collected by the USGS in the same area in 2011 to evaluate any modifications to the inner...
High-resolution geophysical data collected along the Delmarva Peninsula 2014, USGS Field Activity 2014-002-FA High-resolution geophysical data collected along the Delmarva Peninsula 2014, USGS Field Activity 2014-002-FA
The Delmarva Peninsula is a 220-kilometer-long headland, spit, and barrier island complex that was significantly affected by Hurricane Sandy. A USGS cruise was conducted in the summer of 2014 to map the inner-continental shelf of the Delmarva Peninsula using geophysical and sampling techniques to define the geologic framework that governs coastal system evolution at storm-event and...
Filter Total Items: 45
2008 Joint United States-Canadian program to explore the limits of the Extended Continental Shelf aboard the U.S. Coast Guard cutter Healy--Cruise HLY0806 2008 Joint United States-Canadian program to explore the limits of the Extended Continental Shelf aboard the U.S. Coast Guard cutter Healy--Cruise HLY0806
In September 2008, the U.S. Geological Survey (USGS), in cooperation with Natural Resources Canada, Geological Survey of Canada (GSC), conducted bathymetric and geophysical surveys in the Arctic Beaufort Sea aboard the U.S. Coast Guard cutter USCGC Healy. The principal objective of this mission to the high Arctic was to acquire data in support of delineation of the outer limits of the U...
Authors
Jonathan Childs, Peter J. Triezenberg, William Danforth
High-resolution geophysical data from the sea floor surrounding the Western Elizabeth Islands, Massachusetts High-resolution geophysical data from the sea floor surrounding the Western Elizabeth Islands, Massachusetts
Geophysical and geospatial data were collected in the nearshore area surrounding the western Elizabeth Islands, Massachusetts on the U.S. Geological Survey research vessel Rafael during September 2010 in a collaborative effort between the U.S. Geological Survey and the Massachusetts, Office of Coastal Zone Management. This report describes the results of the short-term goals of this...
Authors
Elizabeth A. Pendleton, David Twichell, David Foster, Charles Worley, Barry Irwin, William Danforth
Relation of Lake-Floor Characteristics to the Distribution of Variable Leaf Water-Milfoil in Moultonborough Bay, Lake Winnipesaukee, New Hampshire, 2005 Relation of Lake-Floor Characteristics to the Distribution of Variable Leaf Water-Milfoil in Moultonborough Bay, Lake Winnipesaukee, New Hampshire, 2005
Geophysical, water, and sediment surveys were done to characterize the effects of surficial geology, water and sediment chemistry, and surficial-sediment composition on the distribution of variable leaf water-milfoil in Moultonborough Bay, Lake Winnipesaukee, New Hampshire. Geophysical surveys were conducted in a 180-square-kilometer area, and water-quality and sediment samples were...
Authors
Denise Argue, Richard Kiah, Jane Denny, Jeffrey Deacon, William Danforth, Craig Johnston, Amy Smagula
Sidescan-sonar imagery, multibeam bathymetry, and surficial geologic interpretations of the sea floor in Rhode Island Sound, off Sakonnet Point, Rhode Island Sidescan-sonar imagery, multibeam bathymetry, and surficial geologic interpretations of the sea floor in Rhode Island Sound, off Sakonnet Point, Rhode Island
The U.S. Geological Survey (USGS) is working with the National Oceanic and Atmospheric Administration (NOAA) to interpret the surficial geology in estuaries and sounds along the northeastern coast of the United States. This report interprets the area covered by NOAA Survey H11320, about 72 km² of sea floor in eastern Rhode Island Sound (RIS), located about 8 km south of Sakonnet Point...
Authors
Katherine McMullen, Lawrence J. Poppe, Erin Twomey, William Danforth, Todd Haupt, James Crocker
A GIS library of multibeam data for Massachusetts Bay and the Stellwagen Bank National Marine Sanctuary, offshore of Boston, Massachusetts A GIS library of multibeam data for Massachusetts Bay and the Stellwagen Bank National Marine Sanctuary, offshore of Boston, Massachusetts
Introduction The U.S. Geological Survey (USGS) has mapped the sea floor of the Stellwagen Bank National Marine Sanctuary and western Massachusetts Bay, offshore of Boston, Massachusetts (figure 1a, figure 1b). The mapping was carried out using a Simrad Subsea EM1000 Multibeam Echo Sounder (95 kHz) on the Frederick G. Creed on four cruises between 1994 and 1998. The mapping was conducted...
Authors
Bradford Butman, Page Valentine, Tammie Middleton, William Danforth
High-resolution geologic mapping of the inner continental shelf: Boston Harbor and approaches, Massachusetts High-resolution geologic mapping of the inner continental shelf: Boston Harbor and approaches, Massachusetts
This report presents the surficial geologic framework data and information for the sea floor of Boston Harbor and Approaches, Massachusetts (fig. 1.1). This mapping was conducted as part of a cooperative program between the U.S. Geological Survey (USGS), the Massachusetts Office of Coastal Zone Management (CZM), and the National Oceanic and Atmospheric Administration (NOAA). The primary...
Authors
Seth Ackerman, Bradford Butman, Walter A. Barnhardt, William Danforth, James Crocker
Geological interpretation of bathymetric and backscatter imagery of the sea floor off eastern Cape Cod, Massachusetts Geological interpretation of bathymetric and backscatter imagery of the sea floor off eastern Cape Cod, Massachusetts
The imagery, interpretive data layers, and data presented herein were derived from multibeam echo-sounder data collected off Eastern Cape Cod, Massachusetts, and from the stations occupied to verify these acoustic data. The basic data layers show sea-floor topography, sun-illuminated shaded relief, and backscatter intensity; interpretive layers show the distributions of surficial...
Authors
Larry Poppe, Valerie Paskevich, Bradford Butman, Seth Ackerman, William Danforth, Dave Foster, Dann Blackwood
Project PROBE Leg II: Final report and archive of swath bathymetric sonar, CTD/XBT and GPS navigation data collected during USGS Cruise 03008 (NOAA Cruise RB0303) Puerto Rico Trench 18 February - 7 March, 2003 Project PROBE Leg II: Final report and archive of swath bathymetric sonar, CTD/XBT and GPS navigation data collected during USGS Cruise 03008 (NOAA Cruise RB0303) Puerto Rico Trench 18 February - 7 March, 2003
No abstract available.
Authors
Uri S. ten Brink, William Danforth, Christopher Polloni, Castle Parker, Toshihiko Uozumi, Glynn Williams
New seafloor map of the Puerto Rico Trench helps assess earthquake and tsunami hazards New seafloor map of the Puerto Rico Trench helps assess earthquake and tsunami hazards
The Puerto Rico Trench, the deepest part of the Atlantic Ocean, is located where the North American (NOAM) plate is subducting under the Caribbean plate (Figure l). The trench region may pose significant seismic and tsunami hazards to Puerto Rico and the U.S.Virgin Islands, where 4 million U.S. citizens reside. Widespread damage in Puerto Rico and Hispaniola from an earthquake in 1787...
Authors
Uri S. ten Brink, William Danforth, Christopher Polloni, Brian D. Andrews, Pilar Llanes Estrada, Shepard Smith, Eugene Parker, Toshihiko Uozumi
The Gulf of the Farallones: Sidescan-sonar imagery The Gulf of the Farallones: Sidescan-sonar imagery
No abstract available.
Authors
Edward Sweeney, William Danforth, Thomas O’Brien, William Schwab
High-resolution Quaternary seismic stratigraphy of the New York Bight continental shelf High-resolution Quaternary seismic stratigraphy of the New York Bight continental shelf
A principal focus for the U.S. Geological Survey (USGS) Coastal and Marine Geology Program (marine.usgs.gov) is regional reconnaissance mapping of inner-continental shelf areas, with initial emphasis on heavily used areas of the sea floor near major population centers. The objectives are to develop a detailed regional synthesis of the sea-floor geology in order to provide information for...
Authors
William Schwab, J. Denny, D.S. Foster, L. Lotto, M. Allison, E. Uchupi, B.A. Swift, W. Danforth, E.R. Thieler, Bradford Butman
Archive of datasonics SIS-1000 chirp subbottom data collected during USGS cruise K-1-95-PS Puget Sound, State of Washington, 1995 Archive of datasonics SIS-1000 chirp subbottom data collected during USGS cruise K-1-95-PS Puget Sound, State of Washington, 1995
No abstract available.
Authors
Christopher Lyon, Uri S. ten Brink, William Danforth, Robert Kayen
Science and Products
Filter Total Items: 18
Bathymetry and backscatter intensity of the sea floor of the Hudson Shelf Valley 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...
Bathymetry and backscatter intensity of the sea floor of the Historic Area Remediation Site in 1996, 1998, and 2000 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...
High-resolution geophysical data collected along the Delmarva Peninsula 2015, U.S. Geological Survey Field Activity 2015-001-FA High-resolution geophysical data collected along the Delmarva Peninsula 2015, U.S. Geological Survey Field Activity 2015-001-FA
The Delmarva Peninsula is a 220-kilometer-long headland, spit, and barrier island complex that was significantly affected by Hurricane Sandy in the fall of 2012. The U.S. Geological Survey conducted cruises during the summers of 2014 and 2015 to map the inner continental shelf of the Delmarva Peninsula using geophysical and sampling techniques to define the geologic framework that...
Bathymetry and Backscatter Intensity of the Sea Floor South of Long Island, New York 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...
Swath bathymetry collected offshore of Fire Island and western Long Island, New York in 2014, U.S. Geological Field Activity 2014-072-FA Swath bathymetry collected offshore of Fire Island and western Long Island, New York in 2014, U.S. Geological Field Activity 2014-072-FA
Swath bathymetric data were collected offshore of Fire Island and western Long Island, New York in 2014 as a part of a collaborative effort between the U.S. Army Corps and USGS to assess the impact of Hurricane Sandy on this coastal region. These data were compared to swath bathymetric data collected by the USGS in the same area in 2011 to evaluate any modifications to the inner...
High-resolution geophysical data collected along the Delmarva Peninsula 2014, USGS Field Activity 2014-002-FA High-resolution geophysical data collected along the Delmarva Peninsula 2014, USGS Field Activity 2014-002-FA
The Delmarva Peninsula is a 220-kilometer-long headland, spit, and barrier island complex that was significantly affected by Hurricane Sandy. A USGS cruise was conducted in the summer of 2014 to map the inner-continental shelf of the Delmarva Peninsula using geophysical and sampling techniques to define the geologic framework that governs coastal system evolution at storm-event and...
Filter Total Items: 45
2008 Joint United States-Canadian program to explore the limits of the Extended Continental Shelf aboard the U.S. Coast Guard cutter Healy--Cruise HLY0806 2008 Joint United States-Canadian program to explore the limits of the Extended Continental Shelf aboard the U.S. Coast Guard cutter Healy--Cruise HLY0806
In September 2008, the U.S. Geological Survey (USGS), in cooperation with Natural Resources Canada, Geological Survey of Canada (GSC), conducted bathymetric and geophysical surveys in the Arctic Beaufort Sea aboard the U.S. Coast Guard cutter USCGC Healy. The principal objective of this mission to the high Arctic was to acquire data in support of delineation of the outer limits of the U...
Authors
Jonathan Childs, Peter J. Triezenberg, William Danforth
High-resolution geophysical data from the sea floor surrounding the Western Elizabeth Islands, Massachusetts High-resolution geophysical data from the sea floor surrounding the Western Elizabeth Islands, Massachusetts
Geophysical and geospatial data were collected in the nearshore area surrounding the western Elizabeth Islands, Massachusetts on the U.S. Geological Survey research vessel Rafael during September 2010 in a collaborative effort between the U.S. Geological Survey and the Massachusetts, Office of Coastal Zone Management. This report describes the results of the short-term goals of this...
Authors
Elizabeth A. Pendleton, David Twichell, David Foster, Charles Worley, Barry Irwin, William Danforth
Relation of Lake-Floor Characteristics to the Distribution of Variable Leaf Water-Milfoil in Moultonborough Bay, Lake Winnipesaukee, New Hampshire, 2005 Relation of Lake-Floor Characteristics to the Distribution of Variable Leaf Water-Milfoil in Moultonborough Bay, Lake Winnipesaukee, New Hampshire, 2005
Geophysical, water, and sediment surveys were done to characterize the effects of surficial geology, water and sediment chemistry, and surficial-sediment composition on the distribution of variable leaf water-milfoil in Moultonborough Bay, Lake Winnipesaukee, New Hampshire. Geophysical surveys were conducted in a 180-square-kilometer area, and water-quality and sediment samples were...
Authors
Denise Argue, Richard Kiah, Jane Denny, Jeffrey Deacon, William Danforth, Craig Johnston, Amy Smagula
Sidescan-sonar imagery, multibeam bathymetry, and surficial geologic interpretations of the sea floor in Rhode Island Sound, off Sakonnet Point, Rhode Island Sidescan-sonar imagery, multibeam bathymetry, and surficial geologic interpretations of the sea floor in Rhode Island Sound, off Sakonnet Point, Rhode Island
The U.S. Geological Survey (USGS) is working with the National Oceanic and Atmospheric Administration (NOAA) to interpret the surficial geology in estuaries and sounds along the northeastern coast of the United States. This report interprets the area covered by NOAA Survey H11320, about 72 km² of sea floor in eastern Rhode Island Sound (RIS), located about 8 km south of Sakonnet Point...
Authors
Katherine McMullen, Lawrence J. Poppe, Erin Twomey, William Danforth, Todd Haupt, James Crocker
A GIS library of multibeam data for Massachusetts Bay and the Stellwagen Bank National Marine Sanctuary, offshore of Boston, Massachusetts A GIS library of multibeam data for Massachusetts Bay and the Stellwagen Bank National Marine Sanctuary, offshore of Boston, Massachusetts
Introduction The U.S. Geological Survey (USGS) has mapped the sea floor of the Stellwagen Bank National Marine Sanctuary and western Massachusetts Bay, offshore of Boston, Massachusetts (figure 1a, figure 1b). The mapping was carried out using a Simrad Subsea EM1000 Multibeam Echo Sounder (95 kHz) on the Frederick G. Creed on four cruises between 1994 and 1998. The mapping was conducted...
Authors
Bradford Butman, Page Valentine, Tammie Middleton, William Danforth
High-resolution geologic mapping of the inner continental shelf: Boston Harbor and approaches, Massachusetts High-resolution geologic mapping of the inner continental shelf: Boston Harbor and approaches, Massachusetts
This report presents the surficial geologic framework data and information for the sea floor of Boston Harbor and Approaches, Massachusetts (fig. 1.1). This mapping was conducted as part of a cooperative program between the U.S. Geological Survey (USGS), the Massachusetts Office of Coastal Zone Management (CZM), and the National Oceanic and Atmospheric Administration (NOAA). The primary...
Authors
Seth Ackerman, Bradford Butman, Walter A. Barnhardt, William Danforth, James Crocker
Geological interpretation of bathymetric and backscatter imagery of the sea floor off eastern Cape Cod, Massachusetts Geological interpretation of bathymetric and backscatter imagery of the sea floor off eastern Cape Cod, Massachusetts
The imagery, interpretive data layers, and data presented herein were derived from multibeam echo-sounder data collected off Eastern Cape Cod, Massachusetts, and from the stations occupied to verify these acoustic data. The basic data layers show sea-floor topography, sun-illuminated shaded relief, and backscatter intensity; interpretive layers show the distributions of surficial...
Authors
Larry Poppe, Valerie Paskevich, Bradford Butman, Seth Ackerman, William Danforth, Dave Foster, Dann Blackwood
Project PROBE Leg II: Final report and archive of swath bathymetric sonar, CTD/XBT and GPS navigation data collected during USGS Cruise 03008 (NOAA Cruise RB0303) Puerto Rico Trench 18 February - 7 March, 2003 Project PROBE Leg II: Final report and archive of swath bathymetric sonar, CTD/XBT and GPS navigation data collected during USGS Cruise 03008 (NOAA Cruise RB0303) Puerto Rico Trench 18 February - 7 March, 2003
No abstract available.
Authors
Uri S. ten Brink, William Danforth, Christopher Polloni, Castle Parker, Toshihiko Uozumi, Glynn Williams
New seafloor map of the Puerto Rico Trench helps assess earthquake and tsunami hazards New seafloor map of the Puerto Rico Trench helps assess earthquake and tsunami hazards
The Puerto Rico Trench, the deepest part of the Atlantic Ocean, is located where the North American (NOAM) plate is subducting under the Caribbean plate (Figure l). The trench region may pose significant seismic and tsunami hazards to Puerto Rico and the U.S.Virgin Islands, where 4 million U.S. citizens reside. Widespread damage in Puerto Rico and Hispaniola from an earthquake in 1787...
Authors
Uri S. ten Brink, William Danforth, Christopher Polloni, Brian D. Andrews, Pilar Llanes Estrada, Shepard Smith, Eugene Parker, Toshihiko Uozumi
The Gulf of the Farallones: Sidescan-sonar imagery The Gulf of the Farallones: Sidescan-sonar imagery
No abstract available.
Authors
Edward Sweeney, William Danforth, Thomas O’Brien, William Schwab
High-resolution Quaternary seismic stratigraphy of the New York Bight continental shelf High-resolution Quaternary seismic stratigraphy of the New York Bight continental shelf
A principal focus for the U.S. Geological Survey (USGS) Coastal and Marine Geology Program (marine.usgs.gov) is regional reconnaissance mapping of inner-continental shelf areas, with initial emphasis on heavily used areas of the sea floor near major population centers. The objectives are to develop a detailed regional synthesis of the sea-floor geology in order to provide information for...
Authors
William Schwab, J. Denny, D.S. Foster, L. Lotto, M. Allison, E. Uchupi, B.A. Swift, W. Danforth, E.R. Thieler, Bradford Butman
Archive of datasonics SIS-1000 chirp subbottom data collected during USGS cruise K-1-95-PS Puget Sound, State of Washington, 1995 Archive of datasonics SIS-1000 chirp subbottom data collected during USGS cruise K-1-95-PS Puget Sound, State of Washington, 1995
No abstract available.
Authors
Christopher Lyon, Uri S. ten Brink, William Danforth, Robert Kayen