Patrick Hart
Geophysicist Emeritus with the USGS Pacific Coastal and Marine Science Center
Science and Products
Filter Total Items: 20
Chirp seismic-reflection data: San Pablo Bay, California Chirp seismic-reflection data: San Pablo Bay, California
This data release includes chirp seismic-reflection data collected in 2014 aboard the USGS R/V Snavely in San Pablo Bay, part of northern San Francisco Bay. These data were acquired to image the shallow geologic structure, particularly that related to the Hayward and Rodgers Creek Faults. Approximately 200 km of marine seismic-reflection data were collected along primarily northeast and...
National Archive of Marine Seismic Surveys (NAMSS: A USGS data website of marine seismic reflection data within the U.S. Exclusive Economic Zone (EEZ) National Archive of Marine Seismic Surveys (NAMSS: A USGS data website of marine seismic reflection data within the U.S. Exclusive Economic Zone (EEZ)
The National Archive of Marine Seismic Surveys (NAMSS) is a marine seismic reflection profile data archive consisting of data acquired by or contributed to U.S. Department of the Interior agencies. The archived data were collected from 1975 to the present. They include marine seismic reflection profile data acquired originally for purposes of oil and gas exploration within the U.S...
Filter Total Items: 68
Practical approaches to maximizing the resolution of sparker seismic reflection data Practical approaches to maximizing the resolution of sparker seismic reflection data
Sparkers are a type of sound source widely used by the marine seismic community to provide high-resolution imagery of the shallow sub-bottom (i.e.,
Authors
Jared Kluesner, Daniel Brothers, Patrick Hart, Nathaniel Miller, Gerry Hatcher
Density estimation of sound-producing terrestrial animals using single automatic acoustic recorders and distance sampling Density estimation of sound-producing terrestrial animals using single automatic acoustic recorders and distance sampling
Obtaining accurate information on the distribution, density, and abundance of animals is an important first step toward their conservation. Methodological approaches using automatic acoustic recorders for species that communicate acoustically are gaining increased interest because of their advantages over traditional sampling methods. In this study, we created and evaluated a protocol to...
Authors
Esther Sebastian-Gonzalez, Richard Camp, Ann Tanimoto, Priscilla Monteiro de Oliveira, Bruna Lima, Tiago Marques, Patrick Hart
Controls on submarine canyon head evolution: Monterey Canyon, offshore central California Controls on submarine canyon head evolution: Monterey Canyon, offshore central California
The Monterey submarine canyon, incised across the continental shelf in Monterey Bay, California, provides a record of the link between onshore tectonism, fluvial transport, and deep-marine deposition. High-resolution seismic-reflection imaging in Monterey Bay reveals an extensive paleocanyon unit buried below the seafloor of the continental shelf around Monterey and Soquel canyon heads
Authors
Katherine Maier, Samuel Johnson, Patrick Hart
Gas hydrate quantification using full-waveform inversion of sparse ocean-bottom seismic data: A case study from Green Canyon Block 955, Gulf of Mexico Gas hydrate quantification using full-waveform inversion of sparse ocean-bottom seismic data: A case study from Green Canyon Block 955, Gulf of Mexico
We present a case study of gas hydrate quantification using dense short-offset multichannel seismic (MCS) and sparse long-offset ocean-bottom-seismometer (OBS) data in lease block Green Canyon 955 (GC955), Gulf of Mexico (GOM), where the presence of gas hydrate was interpreted using logging while drilling (LWD) data acquired by the GOM Gas Hydrate Joint Industry Project Leg II expedition...
Authors
Jiliang Wang, Priyank Jaiswal, Seth Haines, Patrick Hart, Shiguo Wu
The epidemiology of avian pox and interaction with avian malaria in Hawaiian forest birds The epidemiology of avian pox and interaction with avian malaria in Hawaiian forest birds
Despite the purported role of avian pox (Avipoxvirus spp.) in the decline of endemic Hawaiian birds, few studies have been conducted on the dynamics of this disease, its impact on free‐living avian populations, or its interactions with avian malaria (Plasmodium relictum). We conducted four longitudinal studies of 3–7 yr in length and used generalized linear models to evaluate cross...
Authors
Michael Samuel, Bethany Woodworth, Carter Atkinson, Patrick Hart, Dennis Lapointe
Population estimates of the Endangered Hawaiʻi ʻĀkepa (Loxops coccineus) in different habitats on windward Mauna Loa Population estimates of the Endangered Hawaiʻi ʻĀkepa (Loxops coccineus) in different habitats on windward Mauna Loa
Endangered Hawai‘i ʻĀkepas (Loxops coccineus) are endemic to Hawai‘i island, where they occur in five spatially distinct populations. Data concerning the status and population trends of these unique Hawaiian honeycreepers are crucial for assessing the effectiveness of recovery and management actions. In 2016, we used point‐transect distance sampling to estimate the abundance of Hawai‘i...
Authors
Seth Judge, Richard Camp, Patrick Hart, Scott Kichman
Science and Products
Filter Total Items: 20
Chirp seismic-reflection data: San Pablo Bay, California Chirp seismic-reflection data: San Pablo Bay, California
This data release includes chirp seismic-reflection data collected in 2014 aboard the USGS R/V Snavely in San Pablo Bay, part of northern San Francisco Bay. These data were acquired to image the shallow geologic structure, particularly that related to the Hayward and Rodgers Creek Faults. Approximately 200 km of marine seismic-reflection data were collected along primarily northeast and...
National Archive of Marine Seismic Surveys (NAMSS: A USGS data website of marine seismic reflection data within the U.S. Exclusive Economic Zone (EEZ) National Archive of Marine Seismic Surveys (NAMSS: A USGS data website of marine seismic reflection data within the U.S. Exclusive Economic Zone (EEZ)
The National Archive of Marine Seismic Surveys (NAMSS) is a marine seismic reflection profile data archive consisting of data acquired by or contributed to U.S. Department of the Interior agencies. The archived data were collected from 1975 to the present. They include marine seismic reflection profile data acquired originally for purposes of oil and gas exploration within the U.S...
Filter Total Items: 68
Practical approaches to maximizing the resolution of sparker seismic reflection data Practical approaches to maximizing the resolution of sparker seismic reflection data
Sparkers are a type of sound source widely used by the marine seismic community to provide high-resolution imagery of the shallow sub-bottom (i.e.,
Authors
Jared Kluesner, Daniel Brothers, Patrick Hart, Nathaniel Miller, Gerry Hatcher
Density estimation of sound-producing terrestrial animals using single automatic acoustic recorders and distance sampling Density estimation of sound-producing terrestrial animals using single automatic acoustic recorders and distance sampling
Obtaining accurate information on the distribution, density, and abundance of animals is an important first step toward their conservation. Methodological approaches using automatic acoustic recorders for species that communicate acoustically are gaining increased interest because of their advantages over traditional sampling methods. In this study, we created and evaluated a protocol to...
Authors
Esther Sebastian-Gonzalez, Richard Camp, Ann Tanimoto, Priscilla Monteiro de Oliveira, Bruna Lima, Tiago Marques, Patrick Hart
Controls on submarine canyon head evolution: Monterey Canyon, offshore central California Controls on submarine canyon head evolution: Monterey Canyon, offshore central California
The Monterey submarine canyon, incised across the continental shelf in Monterey Bay, California, provides a record of the link between onshore tectonism, fluvial transport, and deep-marine deposition. High-resolution seismic-reflection imaging in Monterey Bay reveals an extensive paleocanyon unit buried below the seafloor of the continental shelf around Monterey and Soquel canyon heads
Authors
Katherine Maier, Samuel Johnson, Patrick Hart
Gas hydrate quantification using full-waveform inversion of sparse ocean-bottom seismic data: A case study from Green Canyon Block 955, Gulf of Mexico Gas hydrate quantification using full-waveform inversion of sparse ocean-bottom seismic data: A case study from Green Canyon Block 955, Gulf of Mexico
We present a case study of gas hydrate quantification using dense short-offset multichannel seismic (MCS) and sparse long-offset ocean-bottom-seismometer (OBS) data in lease block Green Canyon 955 (GC955), Gulf of Mexico (GOM), where the presence of gas hydrate was interpreted using logging while drilling (LWD) data acquired by the GOM Gas Hydrate Joint Industry Project Leg II expedition...
Authors
Jiliang Wang, Priyank Jaiswal, Seth Haines, Patrick Hart, Shiguo Wu
The epidemiology of avian pox and interaction with avian malaria in Hawaiian forest birds The epidemiology of avian pox and interaction with avian malaria in Hawaiian forest birds
Despite the purported role of avian pox (Avipoxvirus spp.) in the decline of endemic Hawaiian birds, few studies have been conducted on the dynamics of this disease, its impact on free‐living avian populations, or its interactions with avian malaria (Plasmodium relictum). We conducted four longitudinal studies of 3–7 yr in length and used generalized linear models to evaluate cross...
Authors
Michael Samuel, Bethany Woodworth, Carter Atkinson, Patrick Hart, Dennis Lapointe
Population estimates of the Endangered Hawaiʻi ʻĀkepa (Loxops coccineus) in different habitats on windward Mauna Loa Population estimates of the Endangered Hawaiʻi ʻĀkepa (Loxops coccineus) in different habitats on windward Mauna Loa
Endangered Hawai‘i ʻĀkepas (Loxops coccineus) are endemic to Hawai‘i island, where they occur in five spatially distinct populations. Data concerning the status and population trends of these unique Hawaiian honeycreepers are crucial for assessing the effectiveness of recovery and management actions. In 2016, we used point‐transect distance sampling to estimate the abundance of Hawai‘i...
Authors
Seth Judge, Richard Camp, Patrick Hart, Scott Kichman