Patrick Barnard (Former Employee)
Science and Products
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Filter Total Items: 139
The impact of the 2009-10 El Niño Modoki on U.S. West Coast beaches The impact of the 2009-10 El Niño Modoki on U.S. West Coast beaches
High-resolution beach morphology data collected along much of the U.S. West Coast are synthesized to evaluate the coastal impacts of the 2009–10 El Niño. Coastal change observations were collected as part of five beach monitoring programs that span between 5 and 13 years in duration. In California, regional wave and water level data show that the environmental forcing during the 2009–10...
Authors
Patrick L. Barnard, Jonathan Allan, Jeff E. Hansen, George Kaminsky, Peter Ruggiero, André Doria
Sub-weekly to interannual variability of a high-energy shoreline Sub-weekly to interannual variability of a high-energy shoreline
Sixty-one Global Positioning System (GPS), sub-aerial beach surveys were completed at 7 km long Ocean Beach, San Francisco, CA (USA), between April 2004 and March 2009. The five-year time series contains over 1 million beach elevation measurements and documents detailed changes in beach morphology over a variety of spatial, temporal, and physical forcing scales. Results show that...
Authors
Jeff E. Hansen, Patrick Barnard
A Seamless, High-Resolution, Coastal Digital Elevation Model (DEM) for Southern California A Seamless, High-Resolution, Coastal Digital Elevation Model (DEM) for Southern California
A seamless, 3-meter digital elevation model (DEM) was constructed for the entire Southern California coastal zone, extending 473 km from Point Conception to the Mexican border. The goal was to integrate the most recent, high-resolution datasets available (for example, Light Detection and Ranging (Lidar) topography, multibeam and single beam sonar bathymetry, and Interferometric Synthetic...
Authors
Patrick L. Barnard, Daniel Hoover
Dramatic beach and nearshore morphological changes due to extreme flooding at a wave-dominated river mouth Dramatic beach and nearshore morphological changes due to extreme flooding at a wave-dominated river mouth
Record flooding on the Santa Clara River of California (USA) during January 2005 injected ∼ 5 million m3 of littoral-grade sediment into the Santa Barbara Littoral Cell, approximately an order of magnitude more than both the average annual river loads and the average annual alongshore littoral transport in this portion of the cell. This event appears to be the largest sediment transport...
Authors
P.L. Barnard, J.A. Warrick
Anthropogenic influence on recent bathymetric change in west-central San Francisco Bay Anthropogenic influence on recent bathymetric change in west-central San Francisco Bay
Two multibeam sonar surveys of west-central San Francisco Bay, California, were conducted in 1997 and 2008. Bathymetric change analysis between the two surveys indicates a loss of 14.1 million cubic meters (-3.1 cm/yr) of sediment during this time period, representing an approximately three-fold acceleration of the rate that was observed from prior depth change analysis from 1947 to 1979...
Authors
Patrick Barnard, Rikk Kvitek
The framework of a coastal hazards model: A tool for predicting the impact of severe storms The framework of a coastal hazards model: A tool for predicting the impact of severe storms
The U.S. Geological Survey (USGS) Multi-Hazards Demonstration Project in Southern California (Jones and others, 2007) is a five-year project (FY2007-FY2011) integrating multiple USGS research activities with the needs of external partners, such as emergency managers and land-use planners, to produce products and information that can be used to create more disaster-resilient communities...
Authors
Patrick L. Barnard, Bill O’Reilly, Maarten van Ormondt, Edwin Elias, Peter Ruggiero, Li H. Erikson, Cheryl Hapke, Brian D. Collins, Robert Guza, Peter Adams, Julie Thomas
Coastal Processes Study of Santa Barbara and Ventura Counties, California Coastal Processes Study of Santa Barbara and Ventura Counties, California
The Santa Barbara littoral cell (SBLC) is a complex coastal system with significant management challenges. The coastline ranges broadly in exposure to wave energy, fluvial inputs, hard structures, and urbanization. Geologic influence (structural control) on coastline orientation exerts an important control on local beach behavior, with anthropogenic alterations and the episodic nature of...
Authors
Patrick L. Barnard, David Revell, Dan Hoover, Jon Warrick, John Brocatus, Amy Draut, Pete Dartnell, Edwin Elias, Neomi Mustain, Pat Hart, Holly F. Ryan
The performance of nearshore dredge disposal at Ocean Beach, San Francisco, California, 2005-2007 The performance of nearshore dredge disposal at Ocean Beach, San Francisco, California, 2005-2007
Ocean Beach, California, contains an erosion hot spot in the shadow of the San Francisco ebb tidal delta that threatens valuable public infrastructure as well as the safe recreational use of the beach. In an effort to reduce the erosion at this location a new plan for the management of sediment dredged annually from the main shipping channel at the mouth of San Francisco Bay was...
Authors
Patrick L. Barnard, Li H. Erikson, Jeff E. Hansen, Edwin Elias
Monitoring and modeling shoreline response due to shoreface nourishment on a high-energy coast Monitoring and modeling shoreline response due to shoreface nourishment on a high-energy coast
Shoreface nourishment can be an efficient technique to feed sediment into the littoral zone without the order of magnitude cost increase incurred by directly nourishing the beach. An erosion hot spot at Ocean Beach in San Francisco, California, USA, threatens valuable public infrastructure as well as safe recreational use of the beach. In an effort to reduce the erosion at this location...
Authors
P. Barnard, Li H. Erikson, J. Hansen
Linking human impacts within an estuary to ebb-tidal delta evolution Linking human impacts within an estuary to ebb-tidal delta evolution
San Francisco Bay, California, USA is among the most anthropogenically altered estuaries in the entire United States, but the impact on sediment transport to the coastal ocean has not been quantified. Analysis of four historic bathymetric surveys has revealed large changes to the morphology of the San Francisco Bar, an ebb-tidal delta at the mouth of the San Francisco Bay. From 1873 to...
Authors
Kate Dallas, Patrick Barnard
Littoral transport rates in the Santa Barbara Littoral Cell: a process-based model analysis Littoral transport rates in the Santa Barbara Littoral Cell: a process-based model analysis
Identification of the sediment transport patterns and pathways is essential for sustainable coastal zone management of the heavily modified coastline of Santa Barbara and Ventura County (California, USA). A process-based model application, based on Delft3D Online Morphology, is used to investigate the littoral transport potential along the Santa Barbara Littoral Cell (between Point...
Authors
E. Elias, Patrick Barnard, John Brocatus
The observed relationship between wave conditions and beach response, Ocean Beach, San Francisco, CA The observed relationship between wave conditions and beach response, Ocean Beach, San Francisco, CA
Understanding how sandy beaches respond to storms is critical for effective sediment management and developing successful erosion mitigation efforts. However, only limited progress has been made in relating observed beach changes to wave conditions, with one of the major limiting factors being the lack of temporally dense beach topography and nearshore wave data in most studies. This...
Authors
J.E. Hansen, P.L. Barnard
Non-USGS Publications**
Barnard, P.L., Owen, L.A. and Finkel, R.C., 2004. Style and timing of glacial and paraglacial sedimentation in a monsoonal-influenced high Himalayan environment, the upper Bhagirathi Valley, Garhwal Himalaya. Sedimentary Geology, Volume 165, p. 199-221, doi:10.1016/j.sedgeo.2003.11.009
Barnard, P.L., Owen, L.A., Sharma, M.C. and Finkel, R.C., 2004. Late Quaternary (Holocene) landscape evolution of a monsoon-influenced high Himalayan valley, Gori Ganga, Nanda Devi, NE Garhwal. Geomorphology, Volume 61 (1-2), p. 91-110, doi:10.1016/j.geomorph.2003.12.002
Barnard, P.L., 2003. The Timing and Nature of Glaciofluvial Erosion and Resedimentation in the Himalaya: the Role of Glacial and Paraglacial Processes in the Evolution of High Mountain Landscapes. Published Ph.D. Thesis, University of California, Riverside, 295 pp.
Davis, R.A., Jr. and Barnard, P.L., 2003. Morphodynamics of the barrier-inlet system, west-central Florida. Marine Geology, Volume 200 (1-4), p. 77-101, doi:10.1016/S0025-3227(03)00178-6
Finkel, R.C., Owen, L.A., Barnard, P.L. and Caffee, M.W., 2003. Beryllium-10 dating of Mount Everest moraines indicates a strong monsoonal influence and glacial synchroneity throughout the Himalaya. Geology, Volume 31, p. 561-564, doi:10.1130/0091-7613(2003)031<0561:BDOMEM>2.0.CO;2
Owen, L.A., Finkel, R.C., Ma, H., Spencer, J.Q., Derbyshire, E., Barnard, P.L. and Caffee, M.W., 2003. Timing and style of Late Quaternary glaciation in northeastern Tibet. Geological Society of America Bulletin, Volume 115 (11), p. 1356-1364, doi:10.1130/B25314.1
Owen, L.A., Ma, H., Derbyshire, E., Spencer, J.Q., Barnard, P.L., Zeng, Y.N., Finkel, R.C. and Caffee, M.W., 2003. The timing and style of Late Quaternary glaciation in the La Ji Mountains, NE Tibet: evidence for restricted glaciation during the latter part of the Last Glacial. Zeitschrift für Geomorphologie, Supplemental Volume 130, p. 263-276, ISBN 978-3-443-21130-1
Owen, L.A., Spencer, J.Q., Ma, H., Barnard, P.L., Derbyshire, E., Finkel, R.C., Caffee, M.W. and Zeng, Y.N., 2003. Timing of Late Quaternary glaciation along the southwestern slopes of the Qilian Shan, Tibet. Boreas, Volume 32, p. 281-291, doi:10.1111/j.1502-3885.2003.tb01083.x
Van der Woerd, J., Owen, L.A., Tapponnier, P., Xiwei, X., Kervyn, F., Finkel, R.C. and Barnard, P.L., 2003. Giant, ~M8 earthquake-triggered ice avalanches in the eastern Kunlun Shan, Northern Tibet: characteristics, nature and dynamics. Geological Society of America Bulletin, Volume 116 (3), p. 394-406, doi:10.1130/B25317.1
Barnard, P.L., Owen, L.A., Sharma, M.C. and Finkel, R.C., 2001. Natural and human-induced landsliding in the Garhwal Himalaya of Northern India. Geomorphology, Volume 40, p. 21-35, doi:10.1016/S0169-555X(01)00035-6
Davis, R.A., Jr. and Barnard, P.L., 2000. How anthropogenic factors in the back-barrier influence tidal inlet stability: examples from the Gulf Coast of Florida, USA. In: Pye, K. and Allen, J.R.L. (Eds.), Coastal and Estuarine Environments: sedimentology, geomorphology and geoarchaeology. Geological Society, London, Special Publication Number 175, p. 293-303, doi:10.1144/GSL.SP.2000.175.01.21
Barnard, P.L. and Owen, L.A., 2000. A selected bibliography for Late Quaternary glaciation in Tibet and Bordering Mountains. Quaternary International, Volume 65/66, p. 193-212
Barnard, P.L. and Davis, R.A., Jr., 1999. Anthropogenic vs. natural influences on inlet evolution: west-central Florida. Coastal Sediments ’99 Conference Proceedings, Fire Island, New York, Volume 2, p. 1489-1504
Barnard, P.L., 1998. Historical Morphodynamics of Inlet Channels: West-Central Florida. Master’s Thesis, University of South Florida, 179 pp.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Filter Total Items: 31
Science and Products
Filter Total Items: 15
Filter Total Items: 21
No Result Found
Filter Total Items: 139
The impact of the 2009-10 El Niño Modoki on U.S. West Coast beaches The impact of the 2009-10 El Niño Modoki on U.S. West Coast beaches
High-resolution beach morphology data collected along much of the U.S. West Coast are synthesized to evaluate the coastal impacts of the 2009–10 El Niño. Coastal change observations were collected as part of five beach monitoring programs that span between 5 and 13 years in duration. In California, regional wave and water level data show that the environmental forcing during the 2009–10...
Authors
Patrick L. Barnard, Jonathan Allan, Jeff E. Hansen, George Kaminsky, Peter Ruggiero, André Doria
Sub-weekly to interannual variability of a high-energy shoreline Sub-weekly to interannual variability of a high-energy shoreline
Sixty-one Global Positioning System (GPS), sub-aerial beach surveys were completed at 7 km long Ocean Beach, San Francisco, CA (USA), between April 2004 and March 2009. The five-year time series contains over 1 million beach elevation measurements and documents detailed changes in beach morphology over a variety of spatial, temporal, and physical forcing scales. Results show that...
Authors
Jeff E. Hansen, Patrick Barnard
A Seamless, High-Resolution, Coastal Digital Elevation Model (DEM) for Southern California A Seamless, High-Resolution, Coastal Digital Elevation Model (DEM) for Southern California
A seamless, 3-meter digital elevation model (DEM) was constructed for the entire Southern California coastal zone, extending 473 km from Point Conception to the Mexican border. The goal was to integrate the most recent, high-resolution datasets available (for example, Light Detection and Ranging (Lidar) topography, multibeam and single beam sonar bathymetry, and Interferometric Synthetic...
Authors
Patrick L. Barnard, Daniel Hoover
Dramatic beach and nearshore morphological changes due to extreme flooding at a wave-dominated river mouth Dramatic beach and nearshore morphological changes due to extreme flooding at a wave-dominated river mouth
Record flooding on the Santa Clara River of California (USA) during January 2005 injected ∼ 5 million m3 of littoral-grade sediment into the Santa Barbara Littoral Cell, approximately an order of magnitude more than both the average annual river loads and the average annual alongshore littoral transport in this portion of the cell. This event appears to be the largest sediment transport...
Authors
P.L. Barnard, J.A. Warrick
Anthropogenic influence on recent bathymetric change in west-central San Francisco Bay Anthropogenic influence on recent bathymetric change in west-central San Francisco Bay
Two multibeam sonar surveys of west-central San Francisco Bay, California, were conducted in 1997 and 2008. Bathymetric change analysis between the two surveys indicates a loss of 14.1 million cubic meters (-3.1 cm/yr) of sediment during this time period, representing an approximately three-fold acceleration of the rate that was observed from prior depth change analysis from 1947 to 1979...
Authors
Patrick Barnard, Rikk Kvitek
The framework of a coastal hazards model: A tool for predicting the impact of severe storms The framework of a coastal hazards model: A tool for predicting the impact of severe storms
The U.S. Geological Survey (USGS) Multi-Hazards Demonstration Project in Southern California (Jones and others, 2007) is a five-year project (FY2007-FY2011) integrating multiple USGS research activities with the needs of external partners, such as emergency managers and land-use planners, to produce products and information that can be used to create more disaster-resilient communities...
Authors
Patrick L. Barnard, Bill O’Reilly, Maarten van Ormondt, Edwin Elias, Peter Ruggiero, Li H. Erikson, Cheryl Hapke, Brian D. Collins, Robert Guza, Peter Adams, Julie Thomas
Coastal Processes Study of Santa Barbara and Ventura Counties, California Coastal Processes Study of Santa Barbara and Ventura Counties, California
The Santa Barbara littoral cell (SBLC) is a complex coastal system with significant management challenges. The coastline ranges broadly in exposure to wave energy, fluvial inputs, hard structures, and urbanization. Geologic influence (structural control) on coastline orientation exerts an important control on local beach behavior, with anthropogenic alterations and the episodic nature of...
Authors
Patrick L. Barnard, David Revell, Dan Hoover, Jon Warrick, John Brocatus, Amy Draut, Pete Dartnell, Edwin Elias, Neomi Mustain, Pat Hart, Holly F. Ryan
The performance of nearshore dredge disposal at Ocean Beach, San Francisco, California, 2005-2007 The performance of nearshore dredge disposal at Ocean Beach, San Francisco, California, 2005-2007
Ocean Beach, California, contains an erosion hot spot in the shadow of the San Francisco ebb tidal delta that threatens valuable public infrastructure as well as the safe recreational use of the beach. In an effort to reduce the erosion at this location a new plan for the management of sediment dredged annually from the main shipping channel at the mouth of San Francisco Bay was...
Authors
Patrick L. Barnard, Li H. Erikson, Jeff E. Hansen, Edwin Elias
Monitoring and modeling shoreline response due to shoreface nourishment on a high-energy coast Monitoring and modeling shoreline response due to shoreface nourishment on a high-energy coast
Shoreface nourishment can be an efficient technique to feed sediment into the littoral zone without the order of magnitude cost increase incurred by directly nourishing the beach. An erosion hot spot at Ocean Beach in San Francisco, California, USA, threatens valuable public infrastructure as well as safe recreational use of the beach. In an effort to reduce the erosion at this location...
Authors
P. Barnard, Li H. Erikson, J. Hansen
Linking human impacts within an estuary to ebb-tidal delta evolution Linking human impacts within an estuary to ebb-tidal delta evolution
San Francisco Bay, California, USA is among the most anthropogenically altered estuaries in the entire United States, but the impact on sediment transport to the coastal ocean has not been quantified. Analysis of four historic bathymetric surveys has revealed large changes to the morphology of the San Francisco Bar, an ebb-tidal delta at the mouth of the San Francisco Bay. From 1873 to...
Authors
Kate Dallas, Patrick Barnard
Littoral transport rates in the Santa Barbara Littoral Cell: a process-based model analysis Littoral transport rates in the Santa Barbara Littoral Cell: a process-based model analysis
Identification of the sediment transport patterns and pathways is essential for sustainable coastal zone management of the heavily modified coastline of Santa Barbara and Ventura County (California, USA). A process-based model application, based on Delft3D Online Morphology, is used to investigate the littoral transport potential along the Santa Barbara Littoral Cell (between Point...
Authors
E. Elias, Patrick Barnard, John Brocatus
The observed relationship between wave conditions and beach response, Ocean Beach, San Francisco, CA The observed relationship between wave conditions and beach response, Ocean Beach, San Francisco, CA
Understanding how sandy beaches respond to storms is critical for effective sediment management and developing successful erosion mitigation efforts. However, only limited progress has been made in relating observed beach changes to wave conditions, with one of the major limiting factors being the lack of temporally dense beach topography and nearshore wave data in most studies. This...
Authors
J.E. Hansen, P.L. Barnard
Non-USGS Publications**
Barnard, P.L., Owen, L.A. and Finkel, R.C., 2004. Style and timing of glacial and paraglacial sedimentation in a monsoonal-influenced high Himalayan environment, the upper Bhagirathi Valley, Garhwal Himalaya. Sedimentary Geology, Volume 165, p. 199-221, doi:10.1016/j.sedgeo.2003.11.009
Barnard, P.L., Owen, L.A., Sharma, M.C. and Finkel, R.C., 2004. Late Quaternary (Holocene) landscape evolution of a monsoon-influenced high Himalayan valley, Gori Ganga, Nanda Devi, NE Garhwal. Geomorphology, Volume 61 (1-2), p. 91-110, doi:10.1016/j.geomorph.2003.12.002
Barnard, P.L., 2003. The Timing and Nature of Glaciofluvial Erosion and Resedimentation in the Himalaya: the Role of Glacial and Paraglacial Processes in the Evolution of High Mountain Landscapes. Published Ph.D. Thesis, University of California, Riverside, 295 pp.
Davis, R.A., Jr. and Barnard, P.L., 2003. Morphodynamics of the barrier-inlet system, west-central Florida. Marine Geology, Volume 200 (1-4), p. 77-101, doi:10.1016/S0025-3227(03)00178-6
Finkel, R.C., Owen, L.A., Barnard, P.L. and Caffee, M.W., 2003. Beryllium-10 dating of Mount Everest moraines indicates a strong monsoonal influence and glacial synchroneity throughout the Himalaya. Geology, Volume 31, p. 561-564, doi:10.1130/0091-7613(2003)031<0561:BDOMEM>2.0.CO;2
Owen, L.A., Finkel, R.C., Ma, H., Spencer, J.Q., Derbyshire, E., Barnard, P.L. and Caffee, M.W., 2003. Timing and style of Late Quaternary glaciation in northeastern Tibet. Geological Society of America Bulletin, Volume 115 (11), p. 1356-1364, doi:10.1130/B25314.1
Owen, L.A., Ma, H., Derbyshire, E., Spencer, J.Q., Barnard, P.L., Zeng, Y.N., Finkel, R.C. and Caffee, M.W., 2003. The timing and style of Late Quaternary glaciation in the La Ji Mountains, NE Tibet: evidence for restricted glaciation during the latter part of the Last Glacial. Zeitschrift für Geomorphologie, Supplemental Volume 130, p. 263-276, ISBN 978-3-443-21130-1
Owen, L.A., Spencer, J.Q., Ma, H., Barnard, P.L., Derbyshire, E., Finkel, R.C., Caffee, M.W. and Zeng, Y.N., 2003. Timing of Late Quaternary glaciation along the southwestern slopes of the Qilian Shan, Tibet. Boreas, Volume 32, p. 281-291, doi:10.1111/j.1502-3885.2003.tb01083.x
Van der Woerd, J., Owen, L.A., Tapponnier, P., Xiwei, X., Kervyn, F., Finkel, R.C. and Barnard, P.L., 2003. Giant, ~M8 earthquake-triggered ice avalanches in the eastern Kunlun Shan, Northern Tibet: characteristics, nature and dynamics. Geological Society of America Bulletin, Volume 116 (3), p. 394-406, doi:10.1130/B25317.1
Barnard, P.L., Owen, L.A., Sharma, M.C. and Finkel, R.C., 2001. Natural and human-induced landsliding in the Garhwal Himalaya of Northern India. Geomorphology, Volume 40, p. 21-35, doi:10.1016/S0169-555X(01)00035-6
Davis, R.A., Jr. and Barnard, P.L., 2000. How anthropogenic factors in the back-barrier influence tidal inlet stability: examples from the Gulf Coast of Florida, USA. In: Pye, K. and Allen, J.R.L. (Eds.), Coastal and Estuarine Environments: sedimentology, geomorphology and geoarchaeology. Geological Society, London, Special Publication Number 175, p. 293-303, doi:10.1144/GSL.SP.2000.175.01.21
Barnard, P.L. and Owen, L.A., 2000. A selected bibliography for Late Quaternary glaciation in Tibet and Bordering Mountains. Quaternary International, Volume 65/66, p. 193-212
Barnard, P.L. and Davis, R.A., Jr., 1999. Anthropogenic vs. natural influences on inlet evolution: west-central Florida. Coastal Sediments ’99 Conference Proceedings, Fire Island, New York, Volume 2, p. 1489-1504
Barnard, P.L., 1998. Historical Morphodynamics of Inlet Channels: West-Central Florida. Master’s Thesis, University of South Florida, 179 pp.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Filter Total Items: 31