Li Erikson
Research Oceanographer at the USGS Pacific Coastal and Marine Science Center
Science and Products
Filter Total Items: 21
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Wave and Orbital Velocity Model Data for the California Continental Shelf Wave and Orbital Velocity Model Data for the California Continental Shelf
The oceanographic processes that disturb the continental shelf include the actions of surface waves, internal waves, and currents (tidal, density, wave-driven, wind-driven, and geostrophic). Because the North Pacific Ocean can generate extremely large surface waves that yield relatively high near-bed wave orbital velocities, wave-generated near-bed currents are often considered to be the...
Filter Total Items: 87
Assessment of barrier island morphological change in northern Alaska Assessment of barrier island morphological change in northern Alaska
Arctic barriers islands are highly dynamic features influenced by a variety of oceanographic, geologic, and environmental factors. Many Alaskan barrier islands and spits serve as habitat and protection for native species, as well as shelter the coast from waves and storms that cause flooding and degradation of coastal villages. This study summarizes changes to barrier morphology in time...
Authors
Anna Hamilton, Ann Gibbs, Li Erikson, Anita C. Engelstad
Drivers of extreme water levels in a large, urban, high-energy coastal estuary – A case study of the San Francisco Bay Drivers of extreme water levels in a large, urban, high-energy coastal estuary – A case study of the San Francisco Bay
Reliable and long-term hindcast data of water levels are essential in quantifying return period and values of extreme water levels. In order to inform design decisions on a local flood control district level, process-based numerical modeling has proven an essential tool to provide the needed temporal and spatial coverage for different extreme value analysis methods. To determine the...
Authors
Cornelis Nederhoff, Rohin Saleh, Babak Tehranirad, Liv Herdman, Li Erikson, Patrick Barnard, Mick Van der Wegen
Multiple climate change-driven tipping points for coastal systems Multiple climate change-driven tipping points for coastal systems
As the climate evolves over the next century, the interaction of accelerating sea level rise (SLR) and storms, combined with confining development and infrastructure, will place greater stresses on physical, ecological, and human systems along the ocean-land margin. Many of these valued coastal systems could reach “tipping points,” at which hazard exposure substantially increases and...
Authors
Patrick Barnard, Jenifer Dugan, Henry Page, Nathan Wood, Juliette A. Finzi Hart, Daniel Cayan, Li Erikson, David A. Hubbard, Monique Myers, John Melack, Samuel Iacobellis
Global-scale changes to extreme ocean wave events due to anthropogenic warming Global-scale changes to extreme ocean wave events due to anthropogenic warming
Extreme surface ocean waves are often primary drivers of coastal flooding and erosion over various time scales. Hence, understanding future changes in extreme wave events owing to global warming is of socio-economic and environmental significance. However, our current knowledge of potential changes in high-frequency (defined here as having return periods of less than 1 year) extreme wave...
Authors
Joao Morim, Sean Vitousek, Mark Hemer, Borja Reguero, Li Erikson, Merce Casas-Prat, Xiaolan Wang, Alvaro Semedo, Nobuhito Mori, Tomoya Shimura, Lorenzo Mentaschi, Ben Timmerman
Assessment of flood forecast products for a coupled tributary-Coastal model Assessment of flood forecast products for a coupled tributary-Coastal model
Compound flooding, resulting from a combination of riverine and coastal processes, is a complex but important hazard to resolve along urbanized shorelines in the vicinity of river mouths. However, inland flooding models rarely consider oceanographic conditions, and vice versa for coastal flood models. Here, we describe the development of an operational, integrated coastal-watershed...
Authors
Robert Cifelli, Lynn Johnson, Jungho Kim, Tim Coleman, Greg Pratt, Liv Herdman, Rosanne Martyr-Koller, Juliette Finzi-Hart, Li Erikson, Patrick Barnard, Michael Anderson
USGS permafrost research determines the risks of permafrost thaw to biologic and hydrologic resources USGS permafrost research determines the risks of permafrost thaw to biologic and hydrologic resources
The U.S. Geological Survey (USGS), in collaboration with university, Federal, Tribal, and independent partners, conducts fundamental research on the distribution, vulnerability, and importance of permafrost in arctic and boreal ecosystems. Scientists, land managers, and policy makers use USGS data to help make decisions for development, wildlife habitat, and other needs. Native villages...
Authors
Mark Waldrop, Lesleigh Anderson, Mark Dornblaser, Li Erikson, Ann Gibbs, Nicole Herman-Mercer, Stephanie R. James, Miriam Jones, Joshua Koch, Mary-Cathrine Leewis, Kristen Manies, Burke Minsley, Neal Pastick, Vijay Patil, Frank Urban, Michelle Walvoord, Kimberly Wickland, Christian Zimmerman
By
Natural Hazards Mission Area, Water Resources Mission Area, Ecosystems Land Change Science Program, Coastal and Marine Hazards and Resources Program, Land Change Science Program, Volcano Hazards Program, Earth Resources Observation and Science (EROS) Center , Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center, Pacific Coastal and Marine Science Center, Volcano Science Center
Filter Total Items: 20
Science and Products
Filter Total Items: 21
Filter Total Items: 31
Wave and Orbital Velocity Model Data for the California Continental Shelf Wave and Orbital Velocity Model Data for the California Continental Shelf
The oceanographic processes that disturb the continental shelf include the actions of surface waves, internal waves, and currents (tidal, density, wave-driven, wind-driven, and geostrophic). Because the North Pacific Ocean can generate extremely large surface waves that yield relatively high near-bed wave orbital velocities, wave-generated near-bed currents are often considered to be the...
Filter Total Items: 87
Assessment of barrier island morphological change in northern Alaska Assessment of barrier island morphological change in northern Alaska
Arctic barriers islands are highly dynamic features influenced by a variety of oceanographic, geologic, and environmental factors. Many Alaskan barrier islands and spits serve as habitat and protection for native species, as well as shelter the coast from waves and storms that cause flooding and degradation of coastal villages. This study summarizes changes to barrier morphology in time...
Authors
Anna Hamilton, Ann Gibbs, Li Erikson, Anita C. Engelstad
Drivers of extreme water levels in a large, urban, high-energy coastal estuary – A case study of the San Francisco Bay Drivers of extreme water levels in a large, urban, high-energy coastal estuary – A case study of the San Francisco Bay
Reliable and long-term hindcast data of water levels are essential in quantifying return period and values of extreme water levels. In order to inform design decisions on a local flood control district level, process-based numerical modeling has proven an essential tool to provide the needed temporal and spatial coverage for different extreme value analysis methods. To determine the...
Authors
Cornelis Nederhoff, Rohin Saleh, Babak Tehranirad, Liv Herdman, Li Erikson, Patrick Barnard, Mick Van der Wegen
Multiple climate change-driven tipping points for coastal systems Multiple climate change-driven tipping points for coastal systems
As the climate evolves over the next century, the interaction of accelerating sea level rise (SLR) and storms, combined with confining development and infrastructure, will place greater stresses on physical, ecological, and human systems along the ocean-land margin. Many of these valued coastal systems could reach “tipping points,” at which hazard exposure substantially increases and...
Authors
Patrick Barnard, Jenifer Dugan, Henry Page, Nathan Wood, Juliette A. Finzi Hart, Daniel Cayan, Li Erikson, David A. Hubbard, Monique Myers, John Melack, Samuel Iacobellis
Global-scale changes to extreme ocean wave events due to anthropogenic warming Global-scale changes to extreme ocean wave events due to anthropogenic warming
Extreme surface ocean waves are often primary drivers of coastal flooding and erosion over various time scales. Hence, understanding future changes in extreme wave events owing to global warming is of socio-economic and environmental significance. However, our current knowledge of potential changes in high-frequency (defined here as having return periods of less than 1 year) extreme wave...
Authors
Joao Morim, Sean Vitousek, Mark Hemer, Borja Reguero, Li Erikson, Merce Casas-Prat, Xiaolan Wang, Alvaro Semedo, Nobuhito Mori, Tomoya Shimura, Lorenzo Mentaschi, Ben Timmerman
Assessment of flood forecast products for a coupled tributary-Coastal model Assessment of flood forecast products for a coupled tributary-Coastal model
Compound flooding, resulting from a combination of riverine and coastal processes, is a complex but important hazard to resolve along urbanized shorelines in the vicinity of river mouths. However, inland flooding models rarely consider oceanographic conditions, and vice versa for coastal flood models. Here, we describe the development of an operational, integrated coastal-watershed...
Authors
Robert Cifelli, Lynn Johnson, Jungho Kim, Tim Coleman, Greg Pratt, Liv Herdman, Rosanne Martyr-Koller, Juliette Finzi-Hart, Li Erikson, Patrick Barnard, Michael Anderson
USGS permafrost research determines the risks of permafrost thaw to biologic and hydrologic resources USGS permafrost research determines the risks of permafrost thaw to biologic and hydrologic resources
The U.S. Geological Survey (USGS), in collaboration with university, Federal, Tribal, and independent partners, conducts fundamental research on the distribution, vulnerability, and importance of permafrost in arctic and boreal ecosystems. Scientists, land managers, and policy makers use USGS data to help make decisions for development, wildlife habitat, and other needs. Native villages...
Authors
Mark Waldrop, Lesleigh Anderson, Mark Dornblaser, Li Erikson, Ann Gibbs, Nicole Herman-Mercer, Stephanie R. James, Miriam Jones, Joshua Koch, Mary-Cathrine Leewis, Kristen Manies, Burke Minsley, Neal Pastick, Vijay Patil, Frank Urban, Michelle Walvoord, Kimberly Wickland, Christian Zimmerman
By
Natural Hazards Mission Area, Water Resources Mission Area, Ecosystems Land Change Science Program, Coastal and Marine Hazards and Resources Program, Land Change Science Program, Volcano Hazards Program, Earth Resources Observation and Science (EROS) Center , Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center, Pacific Coastal and Marine Science Center, Volcano Science Center
Filter Total Items: 20