Peter Dartnell (Former Employee)
Science and Products
Filter Total Items: 41
California State Waters Map Series Data Catalog--Monterey Canyon and Vicinity, California California State Waters Map Series Data Catalog--Monterey Canyon and Vicinity, California
Data Catalog for California State Waters, Monterey Canyon and Vicinity, California
California State Waters Map Series Data Catalog--Offshore of Aptos, California California State Waters Map Series Data Catalog--Offshore of Aptos, California
Data catalog for California State Waters Map Series--Offshore of Aptos, California.
California State Waters Map Series Data Catalog--Offshore of Santa Cruz, California California State Waters Map Series Data Catalog--Offshore of Santa Cruz, California
Data catalog for California State Waters Map Series--Offshore of Santa Cruz, California.
California State Waters Map Series Data Catalog--Offshore of Scott Creek, California California State Waters Map Series Data Catalog--Offshore of Scott Creek, California
Data catalog for California State Waters Map Series--Offshore of Scott Creek, California.
California State Waters Map Series Data Catalog--Offshore of Pigeon Point, California California State Waters Map Series Data Catalog--Offshore of Pigeon Point, California
Data catalog for California State Waters Map Series--Offshore of Pigeon Point, California.
Filter Total Items: 19
Filter Total Items: 82
California State Waters Map Series — Offshore of Tomales Point, California California State Waters Map Series — Offshore of Tomales Point, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
Authors
Samuel Johnson, Peter Dartnell, Nadine E. Golden, Stephen R. Hartwell, H. Gary Greene, Mercedes Erdey, Guy Cochrane, Janet Watt, Rikk Kvitek, Michael W. Manson, Charles Endris, Bryan Dieter, Lisa M. Krigsman, Ray Sliter, Erik Lowe, John Chinn
California State Waters Map Series — Drakes Bay and vicinity, California California State Waters Map Series — Drakes Bay and vicinity, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
Authors
Janet Watt, Peter Dartnell, Nadine E. Golden, H. Gary Greene, Mercedes Erdey, Guy Cochrane, Samuel Johnson, Stephen R. Hartwell, Rikk Kvitek, Michael W. Manson, Charles Endris, Bryan Dieter, Ray Sliter, Lisa M. Krigsman, Erik Lowe, John Chinn
California State Waters Map Series — Offshore of San Francisco, California California State Waters Map Series — Offshore of San Francisco, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of...
Authors
Guy Cochrane, Samuel Johnson, Peter Dartnell, H. Gary Greene, Mercedes Erdey, Nadine E. Golden, Stephen R. Hartwell, Charles Endris, Michael W. Manson, Ray Sliter, Rikk Kvitek, Janet Watt, Stephanie Ross, Terry Bruns
California State Waters Map Series — Offshore of Pacifica, California California State Waters Map Series — Offshore of Pacifica, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
Authors
Brian Edwards, Eleyne Phillips, Peter Dartnell, H. Gary Greene, Carrie K. Bretz, Rikk Kvitek, Stephen Hartwell, Samuel Johnson, Guy Cochrane, Bryan E. Dieter, Ray Sliter, Stephanie Ross, Nadine E. Golden, Janet Watt, John Chinn, Mercedes Erdey, Lisa M. Krigsman, Michael W. Manson, Charles Endris
Bathymetry, acoustic backscatter, and seafloor character of Farallon Escarpment and Rittenburg Bank, northern California Bathymetry, acoustic backscatter, and seafloor character of Farallon Escarpment and Rittenburg Bank, northern California
In 2011, scientists from the U.S. Geological Survey’s Coastal and Marine Geology Program acquired bathymetry and acoustic-backscatter data along the upper slope of the Farallon Escarpment and Rittenburg Bank within the Gulf of the Farallones National Marine Sanctuary offshore of the San Francisco Bay area. The surveys were funded by the National Oceanic and Atmospheric Administration’s...
Authors
Peter Dartnell, Guy Cochrane, David Finlayson
California State Waters Map Series — Offshore of Half Moon Bay, California California State Waters Map Series — Offshore of Half Moon Bay, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
Authors
Guy Cochrane, Peter Dartnell, H. Gary Greene, Samuel Johnson, Nadine E. Golden, Stephen R. Hartwell, Bryan Dieter, Michael W. Manson, Ray Sliter, Stephanie Ross, Janet Watt, Charles Endris, Rikk Kvitek, Eleyne Phillips, Mercedes Erdey, John L. Chin, Carrie K. Bretz
The destructive 1946 Unimak near-field tsunami: New evidence for a submarine slide source from reprocessed marine geophysical data The destructive 1946 Unimak near-field tsunami: New evidence for a submarine slide source from reprocessed marine geophysical data
The Mw 8.6 earthquake in 1946 off the Pacific shore of Unimak Island at the end of the Alaska Peninsula generated a far-field tsunami that crossed the Pacific to Antarctica. Its tsunami magnitude, 9.3, is comparable to the 9.1 magnitude of the 2011 Tohoku tsunami. On Unimak Island's Pacific shore, a runup of 42 m destroyed the lighthouse at Scotch Cap. Elsewhere, localized tsunamis with...
Authors
Roland von Huene, Stephen Kirby, John Miller, Peter Dartnell
Bathymetry and acoustic backscatter: outer mainland shelf and slope, Gulf of Santa Catalina, southern California Bathymetry and acoustic backscatter: outer mainland shelf and slope, Gulf of Santa Catalina, southern California
In 2010 and 2011, scientists from the U.S. Geological Survey (USGS), Coastal and Marine Geology Program, acquired bathymetry and acoustic-backscatter data from the outer shelf and slope region offshore of southern California. The surveys were conducted as part of the USGS Marine Geohazards Program. Assessment of the hazards posed by offshore faults, submarine landslides, and tsunamis are
Authors
Peter Dartnell, James Conrad, Holly F. Ryan, David Finlayson
Greenhouse gases generated from the anaerobic biodegradation of natural offshore asphalt seepages in southern California Greenhouse gases generated from the anaerobic biodegradation of natural offshore asphalt seepages in southern California
Significant offshore asphaltic deposits with active seepage occur in the Santa Barbara Channel offshore southern California. The composition and isotopic signatures of gases sampled from the oil and gas seeps reveal that the coexisting oil in the shallow subsurface is anaerobically biodegraded, generating CO2 with secondary CH4 production. Biomineralization can result in the consumption...
Authors
T.D. Lorenson, Florence Wong, Peter Dartnell, Ray Sliter
Offset of latest pleistocene shoreface reveals slip rate on the Hosgri strike-slip fault, offshore central California Offset of latest pleistocene shoreface reveals slip rate on the Hosgri strike-slip fault, offshore central California
The Hosgri fault is the southern part of the regional Hosgri–San Gregorio dextral strike‐slip fault system, which extends primarily in the offshore for about 400 km in central California. Between Morro Bay and San Simeon, high‐resolution multibeam bathymetry reveals that the eastern strand of the Hosgri fault is crossed by an ∼265 m wide slope interpreted as the shoreface of a latest...
Authors
Samuel Johnson, Stephen R. Hartwell, Peter Dartnell
Bathymetry and acoustic backscatter: Estero Bay, California Bathymetry and acoustic backscatter: Estero Bay, California
Between July 30 and August 9, 2012, scientists from the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC), acquired bathymetry and acoustic-backscatter data from Estero Bay, San Luis Obispo, California, under PCMSC Field Activity ID S-05-12-SC. The survey was done using the R/V Parke Snavely outfitted with a multibeam sonar for swath mapping and highly...
Authors
Stephen R. Hartwell, David Finlayson, Peter Dartnell, Samuel Johnson
Sediment transport patterns in the San Francisco Bay Coastal System from cross-validation of bedform asymmetry and modeled residual flux Sediment transport patterns in the San Francisco Bay Coastal System from cross-validation of bedform asymmetry and modeled residual flux
The morphology of ~ 45,000 bedforms from 13 multibeam bathymetry surveys was used as a proxy for identifying net bedload sediment transport directions and pathways throughout the San Francisco Bay estuary and adjacent outer coast. The spatially-averaged shape asymmetry of the bedforms reveals distinct pathways of ebb and flood transport. Additionally, the region-wide, ebb-oriented...
Authors
Patrick L. Barnard, Li H. Erikson, Edwin Elias, Peter Dartnell
Science and Products
Filter Total Items: 41
California State Waters Map Series Data Catalog--Monterey Canyon and Vicinity, California California State Waters Map Series Data Catalog--Monterey Canyon and Vicinity, California
Data Catalog for California State Waters, Monterey Canyon and Vicinity, California
California State Waters Map Series Data Catalog--Offshore of Aptos, California California State Waters Map Series Data Catalog--Offshore of Aptos, California
Data catalog for California State Waters Map Series--Offshore of Aptos, California.
California State Waters Map Series Data Catalog--Offshore of Santa Cruz, California California State Waters Map Series Data Catalog--Offshore of Santa Cruz, California
Data catalog for California State Waters Map Series--Offshore of Santa Cruz, California.
California State Waters Map Series Data Catalog--Offshore of Scott Creek, California California State Waters Map Series Data Catalog--Offshore of Scott Creek, California
Data catalog for California State Waters Map Series--Offshore of Scott Creek, California.
California State Waters Map Series Data Catalog--Offshore of Pigeon Point, California California State Waters Map Series Data Catalog--Offshore of Pigeon Point, California
Data catalog for California State Waters Map Series--Offshore of Pigeon Point, California.
Filter Total Items: 19
Filter Total Items: 82
California State Waters Map Series — Offshore of Tomales Point, California California State Waters Map Series — Offshore of Tomales Point, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
Authors
Samuel Johnson, Peter Dartnell, Nadine E. Golden, Stephen R. Hartwell, H. Gary Greene, Mercedes Erdey, Guy Cochrane, Janet Watt, Rikk Kvitek, Michael W. Manson, Charles Endris, Bryan Dieter, Lisa M. Krigsman, Ray Sliter, Erik Lowe, John Chinn
California State Waters Map Series — Drakes Bay and vicinity, California California State Waters Map Series — Drakes Bay and vicinity, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
Authors
Janet Watt, Peter Dartnell, Nadine E. Golden, H. Gary Greene, Mercedes Erdey, Guy Cochrane, Samuel Johnson, Stephen R. Hartwell, Rikk Kvitek, Michael W. Manson, Charles Endris, Bryan Dieter, Ray Sliter, Lisa M. Krigsman, Erik Lowe, John Chinn
California State Waters Map Series — Offshore of San Francisco, California California State Waters Map Series — Offshore of San Francisco, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration, interpretation, and visualization of...
Authors
Guy Cochrane, Samuel Johnson, Peter Dartnell, H. Gary Greene, Mercedes Erdey, Nadine E. Golden, Stephen R. Hartwell, Charles Endris, Michael W. Manson, Ray Sliter, Rikk Kvitek, Janet Watt, Stephanie Ross, Terry Bruns
California State Waters Map Series — Offshore of Pacifica, California California State Waters Map Series — Offshore of Pacifica, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
Authors
Brian Edwards, Eleyne Phillips, Peter Dartnell, H. Gary Greene, Carrie K. Bretz, Rikk Kvitek, Stephen Hartwell, Samuel Johnson, Guy Cochrane, Bryan E. Dieter, Ray Sliter, Stephanie Ross, Nadine E. Golden, Janet Watt, John Chinn, Mercedes Erdey, Lisa M. Krigsman, Michael W. Manson, Charles Endris
Bathymetry, acoustic backscatter, and seafloor character of Farallon Escarpment and Rittenburg Bank, northern California Bathymetry, acoustic backscatter, and seafloor character of Farallon Escarpment and Rittenburg Bank, northern California
In 2011, scientists from the U.S. Geological Survey’s Coastal and Marine Geology Program acquired bathymetry and acoustic-backscatter data along the upper slope of the Farallon Escarpment and Rittenburg Bank within the Gulf of the Farallones National Marine Sanctuary offshore of the San Francisco Bay area. The surveys were funded by the National Oceanic and Atmospheric Administration’s...
Authors
Peter Dartnell, Guy Cochrane, David Finlayson
California State Waters Map Series — Offshore of Half Moon Bay, California California State Waters Map Series — Offshore of Half Moon Bay, California
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-resolution bathymetry, marine benthic habitats, and geology within the 3-nautical-mile limit of California’s State Waters. The CSMP approach is to create highly detailed seafloor maps through collection, integration...
Authors
Guy Cochrane, Peter Dartnell, H. Gary Greene, Samuel Johnson, Nadine E. Golden, Stephen R. Hartwell, Bryan Dieter, Michael W. Manson, Ray Sliter, Stephanie Ross, Janet Watt, Charles Endris, Rikk Kvitek, Eleyne Phillips, Mercedes Erdey, John L. Chin, Carrie K. Bretz
The destructive 1946 Unimak near-field tsunami: New evidence for a submarine slide source from reprocessed marine geophysical data The destructive 1946 Unimak near-field tsunami: New evidence for a submarine slide source from reprocessed marine geophysical data
The Mw 8.6 earthquake in 1946 off the Pacific shore of Unimak Island at the end of the Alaska Peninsula generated a far-field tsunami that crossed the Pacific to Antarctica. Its tsunami magnitude, 9.3, is comparable to the 9.1 magnitude of the 2011 Tohoku tsunami. On Unimak Island's Pacific shore, a runup of 42 m destroyed the lighthouse at Scotch Cap. Elsewhere, localized tsunamis with...
Authors
Roland von Huene, Stephen Kirby, John Miller, Peter Dartnell
Bathymetry and acoustic backscatter: outer mainland shelf and slope, Gulf of Santa Catalina, southern California Bathymetry and acoustic backscatter: outer mainland shelf and slope, Gulf of Santa Catalina, southern California
In 2010 and 2011, scientists from the U.S. Geological Survey (USGS), Coastal and Marine Geology Program, acquired bathymetry and acoustic-backscatter data from the outer shelf and slope region offshore of southern California. The surveys were conducted as part of the USGS Marine Geohazards Program. Assessment of the hazards posed by offshore faults, submarine landslides, and tsunamis are
Authors
Peter Dartnell, James Conrad, Holly F. Ryan, David Finlayson
Greenhouse gases generated from the anaerobic biodegradation of natural offshore asphalt seepages in southern California Greenhouse gases generated from the anaerobic biodegradation of natural offshore asphalt seepages in southern California
Significant offshore asphaltic deposits with active seepage occur in the Santa Barbara Channel offshore southern California. The composition and isotopic signatures of gases sampled from the oil and gas seeps reveal that the coexisting oil in the shallow subsurface is anaerobically biodegraded, generating CO2 with secondary CH4 production. Biomineralization can result in the consumption...
Authors
T.D. Lorenson, Florence Wong, Peter Dartnell, Ray Sliter
Offset of latest pleistocene shoreface reveals slip rate on the Hosgri strike-slip fault, offshore central California Offset of latest pleistocene shoreface reveals slip rate on the Hosgri strike-slip fault, offshore central California
The Hosgri fault is the southern part of the regional Hosgri–San Gregorio dextral strike‐slip fault system, which extends primarily in the offshore for about 400 km in central California. Between Morro Bay and San Simeon, high‐resolution multibeam bathymetry reveals that the eastern strand of the Hosgri fault is crossed by an ∼265 m wide slope interpreted as the shoreface of a latest...
Authors
Samuel Johnson, Stephen R. Hartwell, Peter Dartnell
Bathymetry and acoustic backscatter: Estero Bay, California Bathymetry and acoustic backscatter: Estero Bay, California
Between July 30 and August 9, 2012, scientists from the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC), acquired bathymetry and acoustic-backscatter data from Estero Bay, San Luis Obispo, California, under PCMSC Field Activity ID S-05-12-SC. The survey was done using the R/V Parke Snavely outfitted with a multibeam sonar for swath mapping and highly...
Authors
Stephen R. Hartwell, David Finlayson, Peter Dartnell, Samuel Johnson
Sediment transport patterns in the San Francisco Bay Coastal System from cross-validation of bedform asymmetry and modeled residual flux Sediment transport patterns in the San Francisco Bay Coastal System from cross-validation of bedform asymmetry and modeled residual flux
The morphology of ~ 45,000 bedforms from 13 multibeam bathymetry surveys was used as a proxy for identifying net bedload sediment transport directions and pathways throughout the San Francisco Bay estuary and adjacent outer coast. The spatially-averaged shape asymmetry of the bedforms reveals distinct pathways of ebb and flood transport. Additionally, the region-wide, ebb-oriented...
Authors
Patrick L. Barnard, Li H. Erikson, Edwin Elias, Peter Dartnell