Patrick Hart
Geophysicist Emeritus with the USGS Pacific Coastal and Marine Science Center
Science and Products
Filter Total Items: 20
No Result Found
Filter Total Items: 68
Pacific island landbird monitoring annual report, National Park of American Samoa, Ta‘u and Tutuila units, 2011 Pacific island landbird monitoring annual report, National Park of American Samoa, Ta‘u and Tutuila units, 2011
The National Park of American Samoa (NPSA) was surveyed for landbirds and habitat characteristics from June through August, 2011. This information provides the first data in the time-series of landbird monitoring for long-term trends in forest bird distribution, density, and abundance within the NPSA. The NPSA survey area was comprised of the terrestrial portions of the Ta‘u and Tutuila...
Authors
Seth Judge, Richard J. Camp, Visa Vaivai, Patrick J. Hart
Birds in Hawai'i Volcanoes National Park: Summary of the 2010 inventory and monitoring program survey Birds in Hawai'i Volcanoes National Park: Summary of the 2010 inventory and monitoring program survey
The National Park Service (NPS) created the Inventory and Monitoring (I&M) Program in 1998 to establish baseline information and assess long-term trends in "vital signs" or key abiotic and biotic elements of National Parks (Fancy et al. 2009). The Pacific Island Network of the I&M Program developed a Landbirds Monitoring Protocol (LMP; Camp et al. 2011) to estimate species-specific...
Authors
Richard J. Camp, Seth Judge, Patrick J. Hart, Greg Kudray, Jacqueline Gaudioso, Bobby Hsu
Minimum distribution of subsea ice-bearing permafrost on the US Beaufort Sea continental shelf Minimum distribution of subsea ice-bearing permafrost on the US Beaufort Sea continental shelf
Starting in Late Pleistocene time (~19 ka), sea level rise inundated coastal zones worldwide. On some parts of the present-day circum-Arctic continental shelf, this led to flooding and thawing of formerly subaerial permafrost and probable dissociation of associated gas hydrates. Relict permafrost has never been systematically mapped along the 700-km-long U.S. Beaufort Sea continental...
Authors
Laura L. Brothers, Patrick Hart, Carolyn D. Ruppel
Petroleum prospectivity of the Canada Basin, Arctic Ocean Petroleum prospectivity of the Canada Basin, Arctic Ocean
Reconnaissance seismic reflection data indicate that Canada Basin is a >700,000 sq. km. remnant of the Amerasia Basin of the Arctic Ocean that lies south of the Alpha-Mendeleev Large Igneous Province, which was constructed across the northern part of the Amerasia Basin between about 127 and 89–83.5 Ma. Canada Basin was filled by Early Jurassic to Holocene detritus from the Beaufort...
Authors
Arthur Grantz, Patrick Hart
Temporal variation in bird and resource abundance across an elevational gradient in Hawaii Temporal variation in bird and resource abundance across an elevational gradient in Hawaii
We documented patterns of nectar availability and nectarivorous bird abundance over ~3 years at nine study sites across an 1,800-m elevational gradient on Hawaii Island to investigate the relationship between resource variation and bird abundance. Flower density (flowers ha-1) and nectar energy content were measured across the gradient for the monodominant 'Ōhi'a (Metrosideros polymorpha...
Authors
Patrick J. Hart, Bethany L. Woodworth, Richard J. Camp, Kathryn Turner, Katherine McClure, Katherine Goodall, Carlene Henneman, Caleb Spiegel, Jaymi Lebrun, Erik Tweed, Michael Samuel
Beaufort Sea deep-water gas hydrate recovery from a seafloor mound in a region of widespread BSR occurrence Beaufort Sea deep-water gas hydrate recovery from a seafloor mound in a region of widespread BSR occurrence
Gas hydrate was recovered from the Alaskan Beaufort Sea slope north of Camden Bay in August 2010 during a U.S. Coast Guard Cutter Healy expedition (USCG cruise ID HLY1002) under the direction of the U.S. Geological Survey (USGS). Interpretation of multichannel seismic (MCS) reflection data collected in 1977 by the USGS across the Beaufort Sea continental margin identified a regional...
Authors
Patrick Hart, John W. Pohlman, T.D. Lorenson, Brian Edwards
Science and Products
Filter Total Items: 20
No Result Found
Filter Total Items: 68
Pacific island landbird monitoring annual report, National Park of American Samoa, Ta‘u and Tutuila units, 2011 Pacific island landbird monitoring annual report, National Park of American Samoa, Ta‘u and Tutuila units, 2011
The National Park of American Samoa (NPSA) was surveyed for landbirds and habitat characteristics from June through August, 2011. This information provides the first data in the time-series of landbird monitoring for long-term trends in forest bird distribution, density, and abundance within the NPSA. The NPSA survey area was comprised of the terrestrial portions of the Ta‘u and Tutuila...
Authors
Seth Judge, Richard J. Camp, Visa Vaivai, Patrick J. Hart
Birds in Hawai'i Volcanoes National Park: Summary of the 2010 inventory and monitoring program survey Birds in Hawai'i Volcanoes National Park: Summary of the 2010 inventory and monitoring program survey
The National Park Service (NPS) created the Inventory and Monitoring (I&M) Program in 1998 to establish baseline information and assess long-term trends in "vital signs" or key abiotic and biotic elements of National Parks (Fancy et al. 2009). The Pacific Island Network of the I&M Program developed a Landbirds Monitoring Protocol (LMP; Camp et al. 2011) to estimate species-specific...
Authors
Richard J. Camp, Seth Judge, Patrick J. Hart, Greg Kudray, Jacqueline Gaudioso, Bobby Hsu
Minimum distribution of subsea ice-bearing permafrost on the US Beaufort Sea continental shelf Minimum distribution of subsea ice-bearing permafrost on the US Beaufort Sea continental shelf
Starting in Late Pleistocene time (~19 ka), sea level rise inundated coastal zones worldwide. On some parts of the present-day circum-Arctic continental shelf, this led to flooding and thawing of formerly subaerial permafrost and probable dissociation of associated gas hydrates. Relict permafrost has never been systematically mapped along the 700-km-long U.S. Beaufort Sea continental...
Authors
Laura L. Brothers, Patrick Hart, Carolyn D. Ruppel
Petroleum prospectivity of the Canada Basin, Arctic Ocean Petroleum prospectivity of the Canada Basin, Arctic Ocean
Reconnaissance seismic reflection data indicate that Canada Basin is a >700,000 sq. km. remnant of the Amerasia Basin of the Arctic Ocean that lies south of the Alpha-Mendeleev Large Igneous Province, which was constructed across the northern part of the Amerasia Basin between about 127 and 89–83.5 Ma. Canada Basin was filled by Early Jurassic to Holocene detritus from the Beaufort...
Authors
Arthur Grantz, Patrick Hart
Temporal variation in bird and resource abundance across an elevational gradient in Hawaii Temporal variation in bird and resource abundance across an elevational gradient in Hawaii
We documented patterns of nectar availability and nectarivorous bird abundance over ~3 years at nine study sites across an 1,800-m elevational gradient on Hawaii Island to investigate the relationship between resource variation and bird abundance. Flower density (flowers ha-1) and nectar energy content were measured across the gradient for the monodominant 'Ōhi'a (Metrosideros polymorpha...
Authors
Patrick J. Hart, Bethany L. Woodworth, Richard J. Camp, Kathryn Turner, Katherine McClure, Katherine Goodall, Carlene Henneman, Caleb Spiegel, Jaymi Lebrun, Erik Tweed, Michael Samuel
Beaufort Sea deep-water gas hydrate recovery from a seafloor mound in a region of widespread BSR occurrence Beaufort Sea deep-water gas hydrate recovery from a seafloor mound in a region of widespread BSR occurrence
Gas hydrate was recovered from the Alaskan Beaufort Sea slope north of Camden Bay in August 2010 during a U.S. Coast Guard Cutter Healy expedition (USCG cruise ID HLY1002) under the direction of the U.S. Geological Survey (USGS). Interpretation of multichannel seismic (MCS) reflection data collected in 1977 by the USGS across the Beaufort Sea continental margin identified a regional...
Authors
Patrick Hart, John W. Pohlman, T.D. Lorenson, Brian Edwards