Peter Dartnell (Former Employee)
Science and Products
Filter Total Items: 41
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Filter Total Items: 19
Filter Total Items: 82
Multibeam mapping of the major deltas of southern Puget Sound, Washington Multibeam mapping of the major deltas of southern Puget Sound, Washington
A magnitude 6.8 earthquake struck southern Puget Sound, Washington, USA on February 28, 2001 causing an estimated $0.7 billion to $1.4 billion in damages to the surrounding area (Williams et al, 2001). The epicenter was close to the Nisqually delta, one of three major deltas in southern Puget Sound (Figure 1). The Nisqually delta is a wildlife refuge but the other two deltas, the...
Authors
James Gardner, E. J. van den Ameele, Peter Dartnell
2000 Multibeam sonar survey of Crater Lake, Oregon - Data, GIS, images, and movies 2000 Multibeam sonar survey of Crater Lake, Oregon - Data, GIS, images, and movies
In the summer of 2000, the U.S. Geological Survey, Pacific Seafloor Mapping Project in cooperation with the National Park Service, and the Center for Coastal and Ocean Mapping, University of New Hampshire used a state-of-the-art multibeam sonar system to collect high-resolution bathymetry and calibrated, co-registered acoustic backscatter to support both biological and geological...
Authors
James Gardner, Peter Dartnell
By
Cruise Report; RV Moana Wave cruise M1-01-GM; the bathymetry and acoustic backscatter of the mid shelf to upper slope off Panama City, Florida, northeastern Gulf of Mexico; September 3, through October 12, 2001, Panama City, FL to Panama City, FL Cruise Report; RV Moana Wave cruise M1-01-GM; the bathymetry and acoustic backscatter of the mid shelf to upper slope off Panama City, Florida, northeastern Gulf of Mexico; September 3, through October 12, 2001, Panama City, FL to Panama City, FL
A zone of deep-water reefs is thought to extend from the mid and outer shelf south of Mississippi and Alabama to at least the northwestern Florida shelf off Panama City, Florida (Figure 1, 67kb). The reefs off Mississippi and Alabama are found in water depths of 60 to 120 m (Ludwick and Walton, 1957; Gardner et al., in press) and were the focus of a multibeam echosounder (MBES) mapping...
Authors
James Gardner, Larry Mayer, John Hughes Clarke, Peter Dartnell, Kenneth Sulak
Exposing the sea floor: high resolution multibeam mapping along the U.S. Pacific coast Exposing the sea floor: high resolution multibeam mapping along the U.S. Pacific coast
No abstract available.
Authors
James Gardner, Peter Dartnell, Helen Gibbons, Duncan MacMillan
Cruise report RV Ocean Surveyor cruise O-1-00-GM the bathymetry and acoustic backscatter of the Pinnacles area, northern Gulf of Mexico May 23, through June 10, 2000 Venice, LA to Venice, LA Cruise report RV Ocean Surveyor cruise O-1-00-GM the bathymetry and acoustic backscatter of the Pinnacles area, northern Gulf of Mexico May 23, through June 10, 2000 Venice, LA to Venice, LA
An extensive deep (~100 m) reef tract occurs on the Mississippi-Alabama outer continental shelf (OCS). The tract, known as "The Pinnacles", is apparently part of a sequence of drowned reef complexes along the "40-fathom" shelf edge of the northern Gulf of Mexico (Ludwick and Walton, 1957). It is critical to determine the accurate geomorphology of deep-reefs because of their importance as...
Authors
James Gardner, Kenneth Sulak, Peter Dartnell, Laurent Hellequin, Brian Calder, Larry Mayer
Bathymetry and selected perspective views of sea floor north and west of Maui, Hawaii Bathymetry and selected perspective views of sea floor north and west of Maui, Hawaii
No abstract available.
Authors
J.V. Gardner, Peter Dartnell, L. Mayer, J.E. Clarke
Bathymetry and selected perspective views of central San Francisco Bay, California Bathymetry and selected perspective views of central San Francisco Bay, California
No abstract available.
Authors
J.V. Gardner, Peter Dartnell, L. Mayer, J.E. Hughes, J.C. Stone
Sea-floor images and data from multibeam surveys in San Francisco Bay, Southern California, Hawaii, the Gulf of Mexico, and Lake Tahoe, California-Nevada Sea-floor images and data from multibeam surveys in San Francisco Bay, Southern California, Hawaii, the Gulf of Mexico, and Lake Tahoe, California-Nevada
Accurate base maps are a prerequisite for any geologic study, regardless of the objectives. Land-based studies commonly utilize aerial photographs, USGS 7.5-minute quadrangle maps, and satellite images as base maps. Until now, studies that involve the ocean floor have been at a disadvantage due to an almost complete lack of accurate marine base maps. Many base maps of the sea floor have...
Authors
Peter Dartnell, James Gardiner
Bathymetry and selected perspective views of Lake Tahoe, California and Nevada Bathymetry and selected perspective views of Lake Tahoe, California and Nevada
No abstract available.
Authors
James Gardner, Peter Dartnell, Larry Mayer, John Hughes Clarke
Final report: Acoustic mapping of dredged material disposal sites and deposits in Mamala Bay, Honolulu, Hawaii Final report: Acoustic mapping of dredged material disposal sites and deposits in Mamala Bay, Honolulu, Hawaii
No abstract available.
Authors
Michael Torresan, M. Hampton, M. Gowen, J. H. Barber, L. Zink, T. Chase, F. Wong, J. Gann, Peter Dartnell
Science and Products
Filter Total Items: 41
No Result Found
Filter Total Items: 19
Filter Total Items: 82
Multibeam mapping of the major deltas of southern Puget Sound, Washington Multibeam mapping of the major deltas of southern Puget Sound, Washington
A magnitude 6.8 earthquake struck southern Puget Sound, Washington, USA on February 28, 2001 causing an estimated $0.7 billion to $1.4 billion in damages to the surrounding area (Williams et al, 2001). The epicenter was close to the Nisqually delta, one of three major deltas in southern Puget Sound (Figure 1). The Nisqually delta is a wildlife refuge but the other two deltas, the...
Authors
James Gardner, E. J. van den Ameele, Peter Dartnell
2000 Multibeam sonar survey of Crater Lake, Oregon - Data, GIS, images, and movies 2000 Multibeam sonar survey of Crater Lake, Oregon - Data, GIS, images, and movies
In the summer of 2000, the U.S. Geological Survey, Pacific Seafloor Mapping Project in cooperation with the National Park Service, and the Center for Coastal and Ocean Mapping, University of New Hampshire used a state-of-the-art multibeam sonar system to collect high-resolution bathymetry and calibrated, co-registered acoustic backscatter to support both biological and geological...
Authors
James Gardner, Peter Dartnell
By
Cruise Report; RV Moana Wave cruise M1-01-GM; the bathymetry and acoustic backscatter of the mid shelf to upper slope off Panama City, Florida, northeastern Gulf of Mexico; September 3, through October 12, 2001, Panama City, FL to Panama City, FL Cruise Report; RV Moana Wave cruise M1-01-GM; the bathymetry and acoustic backscatter of the mid shelf to upper slope off Panama City, Florida, northeastern Gulf of Mexico; September 3, through October 12, 2001, Panama City, FL to Panama City, FL
A zone of deep-water reefs is thought to extend from the mid and outer shelf south of Mississippi and Alabama to at least the northwestern Florida shelf off Panama City, Florida (Figure 1, 67kb). The reefs off Mississippi and Alabama are found in water depths of 60 to 120 m (Ludwick and Walton, 1957; Gardner et al., in press) and were the focus of a multibeam echosounder (MBES) mapping...
Authors
James Gardner, Larry Mayer, John Hughes Clarke, Peter Dartnell, Kenneth Sulak
Exposing the sea floor: high resolution multibeam mapping along the U.S. Pacific coast Exposing the sea floor: high resolution multibeam mapping along the U.S. Pacific coast
No abstract available.
Authors
James Gardner, Peter Dartnell, Helen Gibbons, Duncan MacMillan
Cruise report RV Ocean Surveyor cruise O-1-00-GM the bathymetry and acoustic backscatter of the Pinnacles area, northern Gulf of Mexico May 23, through June 10, 2000 Venice, LA to Venice, LA Cruise report RV Ocean Surveyor cruise O-1-00-GM the bathymetry and acoustic backscatter of the Pinnacles area, northern Gulf of Mexico May 23, through June 10, 2000 Venice, LA to Venice, LA
An extensive deep (~100 m) reef tract occurs on the Mississippi-Alabama outer continental shelf (OCS). The tract, known as "The Pinnacles", is apparently part of a sequence of drowned reef complexes along the "40-fathom" shelf edge of the northern Gulf of Mexico (Ludwick and Walton, 1957). It is critical to determine the accurate geomorphology of deep-reefs because of their importance as...
Authors
James Gardner, Kenneth Sulak, Peter Dartnell, Laurent Hellequin, Brian Calder, Larry Mayer
Bathymetry and selected perspective views of sea floor north and west of Maui, Hawaii Bathymetry and selected perspective views of sea floor north and west of Maui, Hawaii
No abstract available.
Authors
J.V. Gardner, Peter Dartnell, L. Mayer, J.E. Clarke
Bathymetry and selected perspective views of central San Francisco Bay, California Bathymetry and selected perspective views of central San Francisco Bay, California
No abstract available.
Authors
J.V. Gardner, Peter Dartnell, L. Mayer, J.E. Hughes, J.C. Stone
Sea-floor images and data from multibeam surveys in San Francisco Bay, Southern California, Hawaii, the Gulf of Mexico, and Lake Tahoe, California-Nevada Sea-floor images and data from multibeam surveys in San Francisco Bay, Southern California, Hawaii, the Gulf of Mexico, and Lake Tahoe, California-Nevada
Accurate base maps are a prerequisite for any geologic study, regardless of the objectives. Land-based studies commonly utilize aerial photographs, USGS 7.5-minute quadrangle maps, and satellite images as base maps. Until now, studies that involve the ocean floor have been at a disadvantage due to an almost complete lack of accurate marine base maps. Many base maps of the sea floor have...
Authors
Peter Dartnell, James Gardiner
Bathymetry and selected perspective views of Lake Tahoe, California and Nevada Bathymetry and selected perspective views of Lake Tahoe, California and Nevada
No abstract available.
Authors
James Gardner, Peter Dartnell, Larry Mayer, John Hughes Clarke
Final report: Acoustic mapping of dredged material disposal sites and deposits in Mamala Bay, Honolulu, Hawaii Final report: Acoustic mapping of dredged material disposal sites and deposits in Mamala Bay, Honolulu, Hawaii
No abstract available.
Authors
Michael Torresan, M. Hampton, M. Gowen, J. H. Barber, L. Zink, T. Chase, F. Wong, J. Gann, Peter Dartnell