Patrick Barnard (Former Employee)
Science and Products
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Climate change-driven cliff and beach evolution at decadal to centennial time scales Climate change-driven cliff and beach evolution at decadal to centennial time scales
Here we develop a computationally efficient method that evolves cross-shore profiles of sand beaches with or without cliffs along natural and urban coastal environments and across expansive geographic areas at decadal to centennial time-scales driven by 21st century climate change projections. The model requires projected sea level rise rates, extrema of nearshore wave conditions, bluff...
Authors
Li H. Erikson, Andrea C. O'Neill, Patrick L. Barnard, Sean Vitousek, Patrick W. Limber
Downscaling wind and wavefields for 21st century coastal flood hazard projections in a region of complex terrain Downscaling wind and wavefields for 21st century coastal flood hazard projections in a region of complex terrain
While global climate models (GCMs) provide useful projections of near-surface wind vectors into the 21st century, resolution is not sufficient enough for use in regional wave modeling. Statistically downscaled GCM projections from Multivariate Adaptive Constructed Analogues provide daily averaged near-surface winds at an appropriate spatial resolution for wave modeling within the...
Authors
Andrea C. O'Neill, Li H. Erikson, Patrick L. Barnard
Doubling of coastal flooding frequency within decades due to sea-level rise Doubling of coastal flooding frequency within decades due to sea-level rise
Global climate change drives sea-level rise, increasing the frequency of coastal flooding. In most coastal regions, the amount of sea-level rise occurring over years to decades is significantly smaller than normal ocean-level fluctuations caused by tides, waves, and storm surge. However, even gradual sea-level rise can rapidly increase the frequency and severity of coastal flooding. So...
Authors
Sean Vitousek, Patrick L. Barnard, Charles H. Fletcher, Neil Frazer, Li H. Erikson, Curt D. Storlazzi
Can beaches survive climate change? Can beaches survive climate change?
Anthropogenic climate change is driving sea level rise, leading to numerous impacts on the coastal zone, such as increased coastal flooding, beach erosion, cliff failure, saltwater intrusion in aquifers, and groundwater inundation. Many beaches around the world are currently experiencing chronic erosion as a result of gradual, present-day rates of sea level rise (about 3 mm/year) and...
Authors
Sean Vitousek, Patrick L. Barnard, Patrick W. Limber
A model integrating longshore and cross-shore processes for predicting long-term shoreline response to climate change A model integrating longshore and cross-shore processes for predicting long-term shoreline response to climate change
We present a shoreline change model for coastal hazard assessment and management planning. The model, CoSMoS-COAST (Coastal One-line Assimilated Simulation Tool), is a transect-based, one-line model that predicts short-term and long-term shoreline response to climate change in the 21st century. The proposed model represents a novel, modular synthesis of process-based models of coastline...
Authors
Sean Vitousek, Patrick L. Barnard, Patrick W. Limber, Li H. Erikson, Blake Cole
Extreme oceanographic forcing and coastal response due to the 2015–2016 El Niño Extreme oceanographic forcing and coastal response due to the 2015–2016 El Niño
The El Niño-Southern Oscillation is the dominant mode of interannual climate variability across the Pacific Ocean basin, with influence on the global climate. The two end members of the cycle, El Niño and La Niña, force anomalous oceanographic conditions and coastal response along the Pacific margin, exposing many heavily populated regions to increased coastal flooding and erosion...
Authors
Patrick L. Barnard, Daniel J. Hoover, David M. Hubbard, Alexander G. Snyder, Bonnie C. Ludka, Jonathan Allan, George M. Kaminsky, Ruggiero, Timu W. Gallien, Laura Gabel, Diana McCandless, Heather M. Weiner, Nicholas Cohn, Dylan L. Anderson, Katherine A. Serafin
Interactions of estuarine shoreline infrastructure with multiscale sea level variability Interactions of estuarine shoreline infrastructure with multiscale sea level variability
Sea level rise increases the risk of storms and other short‐term water‐rise events, because it sets a higher water level such that coastal surges become more likely to overtop protections and cause floods. To protect coastal communities, it is necessary to understand the interaction among multiday and tidal sea level variabilities, coastal infrastructure, and sea level rise. We performed...
Authors
Ruo-Quian Wang, Liv M. Herdman, Li H. Erikson, Patrick L. Barnard, Michelle Hummel, Mark T. Stacey
Controls of multi-modal wave conditions in a complex coastal setting Controls of multi-modal wave conditions in a complex coastal setting
Coastal hazards emerge from the combined effect of wave conditions and sea level anomalies associated with storms or low-frequency atmosphere-ocean oscillations. Rigorous characterization of wave climate is limited by the availability of spectral wave observations, the computational cost of dynamical simulations, and the ability to link wave-generating atmospheric patterns with coastal...
Authors
Christie Hegermiller, Ana C. Rueda, Li H. Erikson, Patrick L. Barnard, J.A.A. Antolinez, Fernando J. Mendez
A multimodal wave spectrum-based approach for statistical downscaling of local wave climate A multimodal wave spectrum-based approach for statistical downscaling of local wave climate
Characterization of wave climate by bulk wave parameters is insufficient for many coastal studies, including those focused on assessing coastal hazards and long-term wave climate influences on coastal evolution. This issue is particularly relevant for studies using statistical downscaling of atmospheric fields to local wave conditions, which are often multimodal in large ocean basins (e...
Authors
Christie Hegermiller, Jose A.A. Antolinez, Ana C. Rueda, Paula Camus, Jorge Perez, Li H. Erikson, Patrick L. Barnard, Fernando J. Mendez
Automatic delineation of seacliff limits using lidar-derived high-resolution DEMs in southern California Automatic delineation of seacliff limits using lidar-derived high-resolution DEMs in southern California
Seacliff erosion is a serious hazard with implications for coastal management and is often estimated using successive hand-digitized cliff tops or bases (toe) to assess cliff retreat. Even if efforts are made to standardize manual digitizing and eliminate subjectivity, the delineation of cliffs is time-consuming and depends on the analyst's interpretation. An automatic procedure is...
Authors
Monica Palaseanu-Lovejoy, Jeffrey J. Danielson, Cindy A. Thatcher, Amy C. Foxgrover, Patrick L. Barnard, John Brock, Adam Young
Sea-level rise and coastal groundwater inundation and shoaling at select sites in California, USA Sea-level rise and coastal groundwater inundation and shoaling at select sites in California, USA
Study region The study region spans coastal California, USA, and focuses on three primary sites: Arcata, Stinson Beach, and Malibu Lagoon.Study focus 1 m and 2 m sea-level rise (SLR) projections were used to assess vulnerability to SLR-driven groundwater emergence and shoaling at select low-lying, coastal sites in California. Separate and combined inundation scenarios for SLR and...
Authors
Daniel J. Hoover, Kingsley Odigie, Peter W. Swarzenski, Patrick L. Barnard
Effects of climate change on tidal marshes along a latitudinal gradient in California Effects of climate change on tidal marshes along a latitudinal gradient in California
Public Summary The coastal region of California supports a wealth of ecosystem services including habitat provision for wildlife and fisheries. Tidal marshes, mudflats, and shallow bays within coastal estuaries link marine, freshwater and terrestrial habitats, and provide economic and recreational benefits to local communities. Climate change effects such as sea-level rise (SLR) are...
Authors
Karen M. Thorne, Glen M. MacDonald, Rich F. Ambrose, Kevin Buffington, Chase M. Freeman, Christopher N. Janousek, Lauren N. Brown, James R. Holmquist, Glenn R. Guntenspergen, Katherine W. Powelson, Patrick L. Barnard, John Y. Takekawa
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: 32
Science and Products
Filter Total Items: 15
Filter Total Items: 21
No Result Found
Filter Total Items: 139
Climate change-driven cliff and beach evolution at decadal to centennial time scales Climate change-driven cliff and beach evolution at decadal to centennial time scales
Here we develop a computationally efficient method that evolves cross-shore profiles of sand beaches with or without cliffs along natural and urban coastal environments and across expansive geographic areas at decadal to centennial time-scales driven by 21st century climate change projections. The model requires projected sea level rise rates, extrema of nearshore wave conditions, bluff...
Authors
Li H. Erikson, Andrea C. O'Neill, Patrick L. Barnard, Sean Vitousek, Patrick W. Limber
Downscaling wind and wavefields for 21st century coastal flood hazard projections in a region of complex terrain Downscaling wind and wavefields for 21st century coastal flood hazard projections in a region of complex terrain
While global climate models (GCMs) provide useful projections of near-surface wind vectors into the 21st century, resolution is not sufficient enough for use in regional wave modeling. Statistically downscaled GCM projections from Multivariate Adaptive Constructed Analogues provide daily averaged near-surface winds at an appropriate spatial resolution for wave modeling within the...
Authors
Andrea C. O'Neill, Li H. Erikson, Patrick L. Barnard
Doubling of coastal flooding frequency within decades due to sea-level rise Doubling of coastal flooding frequency within decades due to sea-level rise
Global climate change drives sea-level rise, increasing the frequency of coastal flooding. In most coastal regions, the amount of sea-level rise occurring over years to decades is significantly smaller than normal ocean-level fluctuations caused by tides, waves, and storm surge. However, even gradual sea-level rise can rapidly increase the frequency and severity of coastal flooding. So...
Authors
Sean Vitousek, Patrick L. Barnard, Charles H. Fletcher, Neil Frazer, Li H. Erikson, Curt D. Storlazzi
Can beaches survive climate change? Can beaches survive climate change?
Anthropogenic climate change is driving sea level rise, leading to numerous impacts on the coastal zone, such as increased coastal flooding, beach erosion, cliff failure, saltwater intrusion in aquifers, and groundwater inundation. Many beaches around the world are currently experiencing chronic erosion as a result of gradual, present-day rates of sea level rise (about 3 mm/year) and...
Authors
Sean Vitousek, Patrick L. Barnard, Patrick W. Limber
A model integrating longshore and cross-shore processes for predicting long-term shoreline response to climate change A model integrating longshore and cross-shore processes for predicting long-term shoreline response to climate change
We present a shoreline change model for coastal hazard assessment and management planning. The model, CoSMoS-COAST (Coastal One-line Assimilated Simulation Tool), is a transect-based, one-line model that predicts short-term and long-term shoreline response to climate change in the 21st century. The proposed model represents a novel, modular synthesis of process-based models of coastline...
Authors
Sean Vitousek, Patrick L. Barnard, Patrick W. Limber, Li H. Erikson, Blake Cole
Extreme oceanographic forcing and coastal response due to the 2015–2016 El Niño Extreme oceanographic forcing and coastal response due to the 2015–2016 El Niño
The El Niño-Southern Oscillation is the dominant mode of interannual climate variability across the Pacific Ocean basin, with influence on the global climate. The two end members of the cycle, El Niño and La Niña, force anomalous oceanographic conditions and coastal response along the Pacific margin, exposing many heavily populated regions to increased coastal flooding and erosion...
Authors
Patrick L. Barnard, Daniel J. Hoover, David M. Hubbard, Alexander G. Snyder, Bonnie C. Ludka, Jonathan Allan, George M. Kaminsky, Ruggiero, Timu W. Gallien, Laura Gabel, Diana McCandless, Heather M. Weiner, Nicholas Cohn, Dylan L. Anderson, Katherine A. Serafin
Interactions of estuarine shoreline infrastructure with multiscale sea level variability Interactions of estuarine shoreline infrastructure with multiscale sea level variability
Sea level rise increases the risk of storms and other short‐term water‐rise events, because it sets a higher water level such that coastal surges become more likely to overtop protections and cause floods. To protect coastal communities, it is necessary to understand the interaction among multiday and tidal sea level variabilities, coastal infrastructure, and sea level rise. We performed...
Authors
Ruo-Quian Wang, Liv M. Herdman, Li H. Erikson, Patrick L. Barnard, Michelle Hummel, Mark T. Stacey
Controls of multi-modal wave conditions in a complex coastal setting Controls of multi-modal wave conditions in a complex coastal setting
Coastal hazards emerge from the combined effect of wave conditions and sea level anomalies associated with storms or low-frequency atmosphere-ocean oscillations. Rigorous characterization of wave climate is limited by the availability of spectral wave observations, the computational cost of dynamical simulations, and the ability to link wave-generating atmospheric patterns with coastal...
Authors
Christie Hegermiller, Ana C. Rueda, Li H. Erikson, Patrick L. Barnard, J.A.A. Antolinez, Fernando J. Mendez
A multimodal wave spectrum-based approach for statistical downscaling of local wave climate A multimodal wave spectrum-based approach for statistical downscaling of local wave climate
Characterization of wave climate by bulk wave parameters is insufficient for many coastal studies, including those focused on assessing coastal hazards and long-term wave climate influences on coastal evolution. This issue is particularly relevant for studies using statistical downscaling of atmospheric fields to local wave conditions, which are often multimodal in large ocean basins (e...
Authors
Christie Hegermiller, Jose A.A. Antolinez, Ana C. Rueda, Paula Camus, Jorge Perez, Li H. Erikson, Patrick L. Barnard, Fernando J. Mendez
Automatic delineation of seacliff limits using lidar-derived high-resolution DEMs in southern California Automatic delineation of seacliff limits using lidar-derived high-resolution DEMs in southern California
Seacliff erosion is a serious hazard with implications for coastal management and is often estimated using successive hand-digitized cliff tops or bases (toe) to assess cliff retreat. Even if efforts are made to standardize manual digitizing and eliminate subjectivity, the delineation of cliffs is time-consuming and depends on the analyst's interpretation. An automatic procedure is...
Authors
Monica Palaseanu-Lovejoy, Jeffrey J. Danielson, Cindy A. Thatcher, Amy C. Foxgrover, Patrick L. Barnard, John Brock, Adam Young
Sea-level rise and coastal groundwater inundation and shoaling at select sites in California, USA Sea-level rise and coastal groundwater inundation and shoaling at select sites in California, USA
Study region The study region spans coastal California, USA, and focuses on three primary sites: Arcata, Stinson Beach, and Malibu Lagoon.Study focus 1 m and 2 m sea-level rise (SLR) projections were used to assess vulnerability to SLR-driven groundwater emergence and shoaling at select low-lying, coastal sites in California. Separate and combined inundation scenarios for SLR and...
Authors
Daniel J. Hoover, Kingsley Odigie, Peter W. Swarzenski, Patrick L. Barnard
Effects of climate change on tidal marshes along a latitudinal gradient in California Effects of climate change on tidal marshes along a latitudinal gradient in California
Public Summary The coastal region of California supports a wealth of ecosystem services including habitat provision for wildlife and fisheries. Tidal marshes, mudflats, and shallow bays within coastal estuaries link marine, freshwater and terrestrial habitats, and provide economic and recreational benefits to local communities. Climate change effects such as sea-level rise (SLR) are...
Authors
Karen M. Thorne, Glen M. MacDonald, Rich F. Ambrose, Kevin Buffington, Chase M. Freeman, Christopher N. Janousek, Lauren N. Brown, James R. Holmquist, Glenn R. Guntenspergen, Katherine W. Powelson, Patrick L. Barnard, John Y. Takekawa
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: 32