Waves flood across a coastal road near Santa Cruz, California.
Amy Foxgrover
Geographer at the USGS Pacific Coastal and Marine Science Center
Science and Products
San Francisco Bay Bathymetry
Bathymetry of a dynamic tidal estuary, such as San Francisco Bay, provides the observable linkage between anthropogenic modifications of the landscape—such as evolving land use practices, flood control, and water diversions—and natural forces of climate-driven river flow, sea level change, tides, and wind. By examining our record of hydrographic surveys, spanning over 150 years, we can gain...
Filter Total Items: 14
Estimates of percent sand in cores collected in San Francisco Bay, California from 1990-2016 Estimates of percent sand in cores collected in San Francisco Bay, California from 1990-2016
The sediment core data presented here were compiled for use in a project studying the amount of sand either released from or stored within the bed sediments of San Francisco Bay, California from the 1980s to 2010s. Estimates of the change in sand storage in the bed sediments could be used in larger San Francisco Bay sand budget and transports studies as well as to inform management...
River margin and braid shapefiles digitized from aerial images of the Elwha River, Washington, 2006 to 2022 River margin and braid shapefiles digitized from aerial images of the Elwha River, Washington, 2006 to 2022
This dataset provides GIS shapefiles of river margins and braids derived from 30 aerial imagery datasets of the Elwha River, Washington spanning June 2006 through September 2022. The extent of the river’s recently active flow zone, or margins, and river braids was manually digitized in a GIS using aerial orthoimages to capture changes in the river prior to, during, and after the removal...
Historical bathymetry and bathymetric change within San Francisco Bay, California: 1855 to 2005 Historical bathymetry and bathymetric change within San Francisco Bay, California: 1855 to 2005
Here we present a time series of San Francisco Bay bathymetric grids created from historical hydrographic surveys collected by the National Ocean Service (NOS) and its predecessor, the United States Coast and Geodetic Survey, from the 1850s to 1980s and one additional survey of south San Francisco Bay collected in 2005 by Sea Surveyor, Inc. Using surface modeling software, the soundings...
Bathymetric change analysis in San Francisco Bay, California, from 1971 to 2020 Bathymetric change analysis in San Francisco Bay, California, from 1971 to 2020
This data release supersedes version 1.0, published in April 2023 at https://doi.org/10.5066/P9Y5PEV0. Versioning details are documented in the accompanying SFBay_BathyChange_VersionHistory.txt file. This data release provides bathymetric change grids of four geographic areas of San Francisco Bay, California, comparing digital elevation models (DEMs) created from bathymetric data...
Projections of shoreline change for California due to 21st century sea-level rise Projections of shoreline change for California due to 21st century sea-level rise
This dataset contains projections of shoreline change and uncertainty bands across California for future scenarios of sea-level rise (SLR). Projections were made using the Coastal Storm Modeling System - Coastal One-line Assimilated Simulation Tool (CoSMoS-COAST), a numerical model run in an ensemble forced with global-to-local nested wave models and assimilated with satellite-derived...
Bathymetric change analysis in San Francisco Bay, California, from 1971 to 2020 Bathymetric change analysis in San Francisco Bay, California, from 1971 to 2020
This data release provides bathymetric change grids of four geographic areas of San Francisco Bay, California, comparing digital elevation models (DEMs) created from bathymetric data collected in the 1970s and 1980s with DEMs created from bathymetric data collected in the 2010s and 2020. These types of change analyses can provide information on the quantities and patterns of erosion and...
Future coastal hazards along the U.S. Atlantic coast Future coastal hazards along the U.S. Atlantic coast
This product consists of several datasets that map future coastal flooding and erosion hazards due to sea level rise (SLR) and storms for three States (Florida, Georgia, and Virginia) along the Atlantic coast of the United States. The SLR scenarios encompass a plausible range of projections by 2100 based on the best available science and with enough resolution to support a suite of...
Future coastal hazards along the U.S. North and South Carolina coasts Future coastal hazards along the U.S. North and South Carolina coasts
This product consists of several datasets that map future coastal flooding and erosion hazards due to sea level rise (SLR) and storms along the North and South Carolina coast. The SLR scenarios encompass a plausible range of projections by 2100 based on the best available, science and with enough resolution to support a suite of different planning horizons. The storm scenarios are...
Coastal Storm Modeling System (CoSMoS) for Northern California 3.2 (ver. 1h, December 2025) Coastal Storm Modeling System (CoSMoS) for Northern California 3.2 (ver. 1h, December 2025)
The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future scenarios. CoSMoS 3.2 for Northern California shows projections for future scenarios (sea-level change and storms) to provide emergency responders and coastal planners with critical...
Bathymetric surveys collected near Dumbarton Bridge in south San Francisco Bay, California, 2008 to 2019 Bathymetric surveys collected near Dumbarton Bridge in south San Francisco Bay, California, 2008 to 2019
In 2008, the U.S. Geological Survey began mapping the main channel and shallow intertidal mudflats between the Dumbarton Bridge and a railroad bridge located 1 km to the south in south San Francisco Bay. This information was collected to document bathymetric change before and after restoration to inform the South Bay Salt Pond Restoration Project (https://www.southbayrestoration.org)...
High-resolution (1 m) digital elevation model (DEM) of San Francisco Bay, California, created using bathymetry data collected between 1999 and 2020 (ver. 2.0, July 2021) High-resolution (1 m) digital elevation model (DEM) of San Francisco Bay, California, created using bathymetry data collected between 1999 and 2020 (ver. 2.0, July 2021)
A 1-m resolution bathymetric digital elevation model (DEM) of all off San Francisco Bay was constructed from bathymetric surveys collected from 1999 to 2016. The DEM has been divided into northern and southern sections due to file size, and is available in both MLLW and NAVD88 versions. Background: In 2014 and 2015 the California Ocean Protection Council (OPC) contracted the collection...
Coastal Storm Modeling System (CoSMoS) for Central California, v3.1 Coastal Storm Modeling System (CoSMoS) for Central California, v3.1
The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-level rise (SLR) scenarios. CoSMoS v3.1 for Central California shows projections for future climate scenarios (sea-level rise and storms) to provide emergency responders and...
Flooded Coastal Road Santa Cruz County California
Waves flood across a coastal road near Santa Cruz, California.
Filter Total Items: 21
Contributions of erosion, deposition, and human activities to a change in sand storage in the bed of San Francisco Bay, California, 1980s to 2010s Contributions of erosion, deposition, and human activities to a change in sand storage in the bed of San Francisco Bay, California, 1980s to 2010s
This study by the U.S. Geological Survey (USGS) provides estimates of the change in sand storage in bed sediments from the 1980s to 2010s in the San Francisco Bay area, California. The study is part of a larger project called “Research to Understand Impacts of Bay Sand Mining on Sand Transport in San Francisco Bay and the Outer Coast” that has the goal of providing information for the...
Authors
Theresa A. Fregoso, Bruce E. Jaffe, Amy C. Foxgrover, Donald L. Woodrow, Bethany Kharrazi, Kevin Orzech
Projections of multiple climate-related coastal hazards for the US Southeast Atlantic Projections of multiple climate-related coastal hazards for the US Southeast Atlantic
Faced with accelerating sea level rise and changing ocean storm conditions, coastal communities require comprehensive assessments of climate-driven hazard impacts to inform adaptation measures. Previous studies have focused on flooding but rarely on other climate-related coastal hazards, such as subsidence, beach erosion and groundwater. Here, we project societal exposure to multiple...
Authors
Patrick L. Barnard, Kevin M. Befus, Jeffrey J. Danielson, Anita C Engelstad, Li H. Erikson, Amy C. Foxgrover, Maya Kumari Hayden, Daniel J. Hoover, Tim Leijnse, Chris Massey, Robert T. McCall, Norberto Nadal-Caraballo, Kees Nederhoff, Andrea C. O'Neill, Kai Alexander Parker, Manoochehr Shirzaei, Leonard O. Ohenhen, Peter W Swarzenski, Jennifer Anne Thomas, Maarten van Ormondt, Sean Vitousek, Killian Vos, Nathan J. Wood, Jeanne M. Jones, Jamie Jones
Scalable, data-assimilated models predict large-scale shoreline response to waves and sea-level rise Scalable, data-assimilated models predict large-scale shoreline response to waves and sea-level rise
Coastal change is a complex combination of multi-scale processes (e.g., wave-driven cross-shore and longshore transport; dune, bluff, and cliff erosion; overwash; fluvial and inlet sediment supply; and sea-level-driven recession). Historical sea-level-driven coastal recession on open ocean coasts is often outpaced by wave-driven change. However, future sea-level-driven coastal recession...
Authors
Sean Vitousek, Kilian Vos, Kristen D. Splinter, Kai Alexander Parker, Andrea C. O'Neill, Amy C. Foxgrover, Maya Kumari Hayden, Jennifer Anne Thomas, Li H. Erikson, Patrick L. Barnard
Remote sensing large-wood storage downstream of reservoirs during and after dam removal: Elwha River, Washington, USA Remote sensing large-wood storage downstream of reservoirs during and after dam removal: Elwha River, Washington, USA
Large wood is an integral part of many rivers, often defining river-corridor morphology and habitat, but its occurrence, magnitude, and evolution in a river system are much less well understood than the sedimentary and hydraulic components, and due to methodological limitations, have seldom previously been mapped in substantial detail. We present a new method for this, representing a...
Authors
Daniel D. Buscombe, Jonathan A. Warrick, Andrew C. Ritchie, Amy E. East, M. McHenry, Randall McCoy, Amy C. Foxgrover, E. Wohl
Tropical or extratropical cyclones: What drives the compound flood hazard, impact, and risk for the United States Southeast Atlantic coast? Tropical or extratropical cyclones: What drives the compound flood hazard, impact, and risk for the United States Southeast Atlantic coast?
Subtropical coastlines are impacted by both tropical and extratropical cyclones. While both may lead to substantial damage to coastal communities, it is difficult to determine the contribution of tropical cyclones to coastal flooding relative to that of extratropical cyclones. We conduct a large-scale flood hazard and impact assessment across the subtropical Southeast Atlantic Coast of...
Authors
Kees Nederhoff, Tim Leijnse, Kai Alexander Parker, Jennifer Anne Thomas, Andrea O’Neill, Maarten van Ormondt, Robert T. McCall, Li H. Erikson, Patrick L. Barnard, Amy C. Foxgrover, Wouter Klessens, Norberto C. Nadal-Caraballo, Chris Massey
Successful hindcast of 7 years of mud morphodynamics influenced by salt pond restoration in south San Francisco Bay Successful hindcast of 7 years of mud morphodynamics influenced by salt pond restoration in south San Francisco Bay
Alviso Slough in South San Francisco Bay has been experiencing restoration of adjacent former salt-production ponds into muted tidal ponds, tidal ponds, and salt marsh. As a result, tidal prism through Alviso Slough has increased and mercury-contaminated sediment has been remobilized. We developed a 2D, high-resolution, process-based model (Delft3D FM-wave) to hindcast observed morpho...
Authors
Mick Van der Wegen, Johan Reyns, Bruce E. Jaffe, Amy C. Foxgrover, Fernanda Achete, Mark C. Marvin-DiPasquale, Theresa A. Fregoso, Judy Nam, Jessica Lovering
Sediment deposition, erosion, and bathymetric change in San Francisco Bay, California, 1971–1990 and 1999–2020 Sediment deposition, erosion, and bathymetric change in San Francisco Bay, California, 1971–1990 and 1999–2020
Bathymetric change analyses document historical patterns of sediment deposition and erosion, providing valuable insight into the sediment dynamics of coastal systems, including pathways of sediment and sediment-bound contaminants. In 2014 and 2015, the Office for Coastal Management, in partnership with the National Oceanic and Atmospheric Administration (NOAA) Office of Coastal...
Authors
Theresa A. Fregoso, Amy C. Foxgrover, Bruce E. Jaffe
South San Francisco Bay Salt Pond Restoration Project—A synthesis of Phase-1 mercury studies South San Francisco Bay Salt Pond Restoration Project—A synthesis of Phase-1 mercury studies
The South Bay Salt Pond Restoration Project (SBSPRP) encompasses over 6,000 hectares of former salt production ponds along the south edge of the San Francisco Bay and represents the largest wetland restoration effort on the west coast of North America. A series of studies associated with Phase 1 (2010–2018) restoration activities that are focused on a historically mercury contaminated...
Authors
Mark Marvin-DiPasquale, Darell Slotton, Josh T. Ackerman, Maureen A. Downing-Kunz, Bruce E. Jaffe, Amy C. Foxgrover, Fernanda Achete, Mick van der Wegen
Dynamic flood modeling essential to assess the coastal impacts of climate change Dynamic flood modeling essential to assess the coastal impacts of climate change
Coastal inundation due to sea level rise (SLR) is projected to displace hundreds of millions of people worldwide over the next century, creating significant economic, humanitarian, and national-security challenges. However, the majority of previous efforts to characterize potential coastal impacts of climate change have focused primarily on long-term SLR with a static tide level, and...
Authors
Patrick L. Barnard, Li H. Erikson, Amy C. Foxgrover, Juliette A. Finzi Hart, Patrick W. Limber, Andrea C. O'Neill, Maarten van Ormondt, Sean Vitousek, Nathan J. Wood, Maya K. Hayden, Jeanne M. Jones
Slough evolution and legacy mercury remobilization induced by wetland restoration in South San Francisco Bay Slough evolution and legacy mercury remobilization induced by wetland restoration in South San Francisco Bay
Coastal wetlands have a long history of degradation and destruction due to human development. Now recognized as one of the most productive ecosystems in the world, substantial efforts are being made to restore this critical habitat. While wetland restoration efforts are generally viewed as beneficial in terms of providing wildlife habitat and flood control, they are often accompanied by...
Authors
Amy C. Foxgrover, Mark C. Marvin-DiPasquale, Bruce E. Jaffe, Theresa A. Fregoso
Modeling morphodynamic development in the Alviso Slough system, South San Francisco Bay, California Modeling morphodynamic development in the Alviso Slough system, South San Francisco Bay, California
Alviso Slough area, South San Francisco Bay, California, is the site of an ongoing effort to restore former salt production ponds to intertidal habitat. As restoration proceeds and the levees surrounding the former salt production ponds are breached, the increase in tidal prism and associated sediment scour in the sloughs will remobilize legacy mercury deposits. A numerical model that is...
Authors
Mick Van der Wegen, Johan Reyes, Bruce Jaffe, Amy Foxgrover
Assessing and communicating the impacts of climate change on the Southern California coast Assessing and communicating the impacts of climate change on the Southern California coast
Over the course of this and the next century, the combination of rising sea levels, severe storms, and coastal erosion will threaten the sustainability of coastal communities, development, and ecosystems as we currently know them. To clearly identify coastal vulnerabilities and develop appropriate adaptation strategies for projected increased levels of coastal flooding and erosion...
Authors
Li H. Erikson, Patrick L. Barnard, Andrea C. O'Neill, Patrick Limber, Sean Vitousek, Juliette Finzi Hart, Maya Hayden, Jeanne M. Jones, Nathan J. Wood, Michael Fitzgibbon, Amy C. Foxgrover, Jessica Lovering
Science and Products
San Francisco Bay Bathymetry
Bathymetry of a dynamic tidal estuary, such as San Francisco Bay, provides the observable linkage between anthropogenic modifications of the landscape—such as evolving land use practices, flood control, and water diversions—and natural forces of climate-driven river flow, sea level change, tides, and wind. By examining our record of hydrographic surveys, spanning over 150 years, we can gain...
Filter Total Items: 14
Estimates of percent sand in cores collected in San Francisco Bay, California from 1990-2016 Estimates of percent sand in cores collected in San Francisco Bay, California from 1990-2016
The sediment core data presented here were compiled for use in a project studying the amount of sand either released from or stored within the bed sediments of San Francisco Bay, California from the 1980s to 2010s. Estimates of the change in sand storage in the bed sediments could be used in larger San Francisco Bay sand budget and transports studies as well as to inform management...
River margin and braid shapefiles digitized from aerial images of the Elwha River, Washington, 2006 to 2022 River margin and braid shapefiles digitized from aerial images of the Elwha River, Washington, 2006 to 2022
This dataset provides GIS shapefiles of river margins and braids derived from 30 aerial imagery datasets of the Elwha River, Washington spanning June 2006 through September 2022. The extent of the river’s recently active flow zone, or margins, and river braids was manually digitized in a GIS using aerial orthoimages to capture changes in the river prior to, during, and after the removal...
Historical bathymetry and bathymetric change within San Francisco Bay, California: 1855 to 2005 Historical bathymetry and bathymetric change within San Francisco Bay, California: 1855 to 2005
Here we present a time series of San Francisco Bay bathymetric grids created from historical hydrographic surveys collected by the National Ocean Service (NOS) and its predecessor, the United States Coast and Geodetic Survey, from the 1850s to 1980s and one additional survey of south San Francisco Bay collected in 2005 by Sea Surveyor, Inc. Using surface modeling software, the soundings...
Bathymetric change analysis in San Francisco Bay, California, from 1971 to 2020 Bathymetric change analysis in San Francisco Bay, California, from 1971 to 2020
This data release supersedes version 1.0, published in April 2023 at https://doi.org/10.5066/P9Y5PEV0. Versioning details are documented in the accompanying SFBay_BathyChange_VersionHistory.txt file. This data release provides bathymetric change grids of four geographic areas of San Francisco Bay, California, comparing digital elevation models (DEMs) created from bathymetric data...
Projections of shoreline change for California due to 21st century sea-level rise Projections of shoreline change for California due to 21st century sea-level rise
This dataset contains projections of shoreline change and uncertainty bands across California for future scenarios of sea-level rise (SLR). Projections were made using the Coastal Storm Modeling System - Coastal One-line Assimilated Simulation Tool (CoSMoS-COAST), a numerical model run in an ensemble forced with global-to-local nested wave models and assimilated with satellite-derived...
Bathymetric change analysis in San Francisco Bay, California, from 1971 to 2020 Bathymetric change analysis in San Francisco Bay, California, from 1971 to 2020
This data release provides bathymetric change grids of four geographic areas of San Francisco Bay, California, comparing digital elevation models (DEMs) created from bathymetric data collected in the 1970s and 1980s with DEMs created from bathymetric data collected in the 2010s and 2020. These types of change analyses can provide information on the quantities and patterns of erosion and...
Future coastal hazards along the U.S. Atlantic coast Future coastal hazards along the U.S. Atlantic coast
This product consists of several datasets that map future coastal flooding and erosion hazards due to sea level rise (SLR) and storms for three States (Florida, Georgia, and Virginia) along the Atlantic coast of the United States. The SLR scenarios encompass a plausible range of projections by 2100 based on the best available science and with enough resolution to support a suite of...
Future coastal hazards along the U.S. North and South Carolina coasts Future coastal hazards along the U.S. North and South Carolina coasts
This product consists of several datasets that map future coastal flooding and erosion hazards due to sea level rise (SLR) and storms along the North and South Carolina coast. The SLR scenarios encompass a plausible range of projections by 2100 based on the best available, science and with enough resolution to support a suite of different planning horizons. The storm scenarios are...
Coastal Storm Modeling System (CoSMoS) for Northern California 3.2 (ver. 1h, December 2025) Coastal Storm Modeling System (CoSMoS) for Northern California 3.2 (ver. 1h, December 2025)
The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future scenarios. CoSMoS 3.2 for Northern California shows projections for future scenarios (sea-level change and storms) to provide emergency responders and coastal planners with critical...
Bathymetric surveys collected near Dumbarton Bridge in south San Francisco Bay, California, 2008 to 2019 Bathymetric surveys collected near Dumbarton Bridge in south San Francisco Bay, California, 2008 to 2019
In 2008, the U.S. Geological Survey began mapping the main channel and shallow intertidal mudflats between the Dumbarton Bridge and a railroad bridge located 1 km to the south in south San Francisco Bay. This information was collected to document bathymetric change before and after restoration to inform the South Bay Salt Pond Restoration Project (https://www.southbayrestoration.org)...
High-resolution (1 m) digital elevation model (DEM) of San Francisco Bay, California, created using bathymetry data collected between 1999 and 2020 (ver. 2.0, July 2021) High-resolution (1 m) digital elevation model (DEM) of San Francisco Bay, California, created using bathymetry data collected between 1999 and 2020 (ver. 2.0, July 2021)
A 1-m resolution bathymetric digital elevation model (DEM) of all off San Francisco Bay was constructed from bathymetric surveys collected from 1999 to 2016. The DEM has been divided into northern and southern sections due to file size, and is available in both MLLW and NAVD88 versions. Background: In 2014 and 2015 the California Ocean Protection Council (OPC) contracted the collection...
Coastal Storm Modeling System (CoSMoS) for Central California, v3.1 Coastal Storm Modeling System (CoSMoS) for Central California, v3.1
The Coastal Storm Modeling System (CoSMoS) makes detailed predictions (meter-scale) over large geographic scales (100s of kilometers) of storm-induced coastal flooding and erosion for both current and future sea-level rise (SLR) scenarios. CoSMoS v3.1 for Central California shows projections for future climate scenarios (sea-level rise and storms) to provide emergency responders and...
Flooded Coastal Road Santa Cruz County California
Waves flood across a coastal road near Santa Cruz, California.
Waves flood across a coastal road near Santa Cruz, California.
Filter Total Items: 21
Contributions of erosion, deposition, and human activities to a change in sand storage in the bed of San Francisco Bay, California, 1980s to 2010s Contributions of erosion, deposition, and human activities to a change in sand storage in the bed of San Francisco Bay, California, 1980s to 2010s
This study by the U.S. Geological Survey (USGS) provides estimates of the change in sand storage in bed sediments from the 1980s to 2010s in the San Francisco Bay area, California. The study is part of a larger project called “Research to Understand Impacts of Bay Sand Mining on Sand Transport in San Francisco Bay and the Outer Coast” that has the goal of providing information for the...
Authors
Theresa A. Fregoso, Bruce E. Jaffe, Amy C. Foxgrover, Donald L. Woodrow, Bethany Kharrazi, Kevin Orzech
Projections of multiple climate-related coastal hazards for the US Southeast Atlantic Projections of multiple climate-related coastal hazards for the US Southeast Atlantic
Faced with accelerating sea level rise and changing ocean storm conditions, coastal communities require comprehensive assessments of climate-driven hazard impacts to inform adaptation measures. Previous studies have focused on flooding but rarely on other climate-related coastal hazards, such as subsidence, beach erosion and groundwater. Here, we project societal exposure to multiple...
Authors
Patrick L. Barnard, Kevin M. Befus, Jeffrey J. Danielson, Anita C Engelstad, Li H. Erikson, Amy C. Foxgrover, Maya Kumari Hayden, Daniel J. Hoover, Tim Leijnse, Chris Massey, Robert T. McCall, Norberto Nadal-Caraballo, Kees Nederhoff, Andrea C. O'Neill, Kai Alexander Parker, Manoochehr Shirzaei, Leonard O. Ohenhen, Peter W Swarzenski, Jennifer Anne Thomas, Maarten van Ormondt, Sean Vitousek, Killian Vos, Nathan J. Wood, Jeanne M. Jones, Jamie Jones
Scalable, data-assimilated models predict large-scale shoreline response to waves and sea-level rise Scalable, data-assimilated models predict large-scale shoreline response to waves and sea-level rise
Coastal change is a complex combination of multi-scale processes (e.g., wave-driven cross-shore and longshore transport; dune, bluff, and cliff erosion; overwash; fluvial and inlet sediment supply; and sea-level-driven recession). Historical sea-level-driven coastal recession on open ocean coasts is often outpaced by wave-driven change. However, future sea-level-driven coastal recession...
Authors
Sean Vitousek, Kilian Vos, Kristen D. Splinter, Kai Alexander Parker, Andrea C. O'Neill, Amy C. Foxgrover, Maya Kumari Hayden, Jennifer Anne Thomas, Li H. Erikson, Patrick L. Barnard
Remote sensing large-wood storage downstream of reservoirs during and after dam removal: Elwha River, Washington, USA Remote sensing large-wood storage downstream of reservoirs during and after dam removal: Elwha River, Washington, USA
Large wood is an integral part of many rivers, often defining river-corridor morphology and habitat, but its occurrence, magnitude, and evolution in a river system are much less well understood than the sedimentary and hydraulic components, and due to methodological limitations, have seldom previously been mapped in substantial detail. We present a new method for this, representing a...
Authors
Daniel D. Buscombe, Jonathan A. Warrick, Andrew C. Ritchie, Amy E. East, M. McHenry, Randall McCoy, Amy C. Foxgrover, E. Wohl
Tropical or extratropical cyclones: What drives the compound flood hazard, impact, and risk for the United States Southeast Atlantic coast? Tropical or extratropical cyclones: What drives the compound flood hazard, impact, and risk for the United States Southeast Atlantic coast?
Subtropical coastlines are impacted by both tropical and extratropical cyclones. While both may lead to substantial damage to coastal communities, it is difficult to determine the contribution of tropical cyclones to coastal flooding relative to that of extratropical cyclones. We conduct a large-scale flood hazard and impact assessment across the subtropical Southeast Atlantic Coast of...
Authors
Kees Nederhoff, Tim Leijnse, Kai Alexander Parker, Jennifer Anne Thomas, Andrea O’Neill, Maarten van Ormondt, Robert T. McCall, Li H. Erikson, Patrick L. Barnard, Amy C. Foxgrover, Wouter Klessens, Norberto C. Nadal-Caraballo, Chris Massey
Successful hindcast of 7 years of mud morphodynamics influenced by salt pond restoration in south San Francisco Bay Successful hindcast of 7 years of mud morphodynamics influenced by salt pond restoration in south San Francisco Bay
Alviso Slough in South San Francisco Bay has been experiencing restoration of adjacent former salt-production ponds into muted tidal ponds, tidal ponds, and salt marsh. As a result, tidal prism through Alviso Slough has increased and mercury-contaminated sediment has been remobilized. We developed a 2D, high-resolution, process-based model (Delft3D FM-wave) to hindcast observed morpho...
Authors
Mick Van der Wegen, Johan Reyns, Bruce E. Jaffe, Amy C. Foxgrover, Fernanda Achete, Mark C. Marvin-DiPasquale, Theresa A. Fregoso, Judy Nam, Jessica Lovering
Sediment deposition, erosion, and bathymetric change in San Francisco Bay, California, 1971–1990 and 1999–2020 Sediment deposition, erosion, and bathymetric change in San Francisco Bay, California, 1971–1990 and 1999–2020
Bathymetric change analyses document historical patterns of sediment deposition and erosion, providing valuable insight into the sediment dynamics of coastal systems, including pathways of sediment and sediment-bound contaminants. In 2014 and 2015, the Office for Coastal Management, in partnership with the National Oceanic and Atmospheric Administration (NOAA) Office of Coastal...
Authors
Theresa A. Fregoso, Amy C. Foxgrover, Bruce E. Jaffe
South San Francisco Bay Salt Pond Restoration Project—A synthesis of Phase-1 mercury studies South San Francisco Bay Salt Pond Restoration Project—A synthesis of Phase-1 mercury studies
The South Bay Salt Pond Restoration Project (SBSPRP) encompasses over 6,000 hectares of former salt production ponds along the south edge of the San Francisco Bay and represents the largest wetland restoration effort on the west coast of North America. A series of studies associated with Phase 1 (2010–2018) restoration activities that are focused on a historically mercury contaminated...
Authors
Mark Marvin-DiPasquale, Darell Slotton, Josh T. Ackerman, Maureen A. Downing-Kunz, Bruce E. Jaffe, Amy C. Foxgrover, Fernanda Achete, Mick van der Wegen
Dynamic flood modeling essential to assess the coastal impacts of climate change Dynamic flood modeling essential to assess the coastal impacts of climate change
Coastal inundation due to sea level rise (SLR) is projected to displace hundreds of millions of people worldwide over the next century, creating significant economic, humanitarian, and national-security challenges. However, the majority of previous efforts to characterize potential coastal impacts of climate change have focused primarily on long-term SLR with a static tide level, and...
Authors
Patrick L. Barnard, Li H. Erikson, Amy C. Foxgrover, Juliette A. Finzi Hart, Patrick W. Limber, Andrea C. O'Neill, Maarten van Ormondt, Sean Vitousek, Nathan J. Wood, Maya K. Hayden, Jeanne M. Jones
Slough evolution and legacy mercury remobilization induced by wetland restoration in South San Francisco Bay Slough evolution and legacy mercury remobilization induced by wetland restoration in South San Francisco Bay
Coastal wetlands have a long history of degradation and destruction due to human development. Now recognized as one of the most productive ecosystems in the world, substantial efforts are being made to restore this critical habitat. While wetland restoration efforts are generally viewed as beneficial in terms of providing wildlife habitat and flood control, they are often accompanied by...
Authors
Amy C. Foxgrover, Mark C. Marvin-DiPasquale, Bruce E. Jaffe, Theresa A. Fregoso
Modeling morphodynamic development in the Alviso Slough system, South San Francisco Bay, California Modeling morphodynamic development in the Alviso Slough system, South San Francisco Bay, California
Alviso Slough area, South San Francisco Bay, California, is the site of an ongoing effort to restore former salt production ponds to intertidal habitat. As restoration proceeds and the levees surrounding the former salt production ponds are breached, the increase in tidal prism and associated sediment scour in the sloughs will remobilize legacy mercury deposits. A numerical model that is...
Authors
Mick Van der Wegen, Johan Reyes, Bruce Jaffe, Amy Foxgrover
Assessing and communicating the impacts of climate change on the Southern California coast Assessing and communicating the impacts of climate change on the Southern California coast
Over the course of this and the next century, the combination of rising sea levels, severe storms, and coastal erosion will threaten the sustainability of coastal communities, development, and ecosystems as we currently know them. To clearly identify coastal vulnerabilities and develop appropriate adaptation strategies for projected increased levels of coastal flooding and erosion...
Authors
Li H. Erikson, Patrick L. Barnard, Andrea C. O'Neill, Patrick Limber, Sean Vitousek, Juliette Finzi Hart, Maya Hayden, Jeanne M. Jones, Nathan J. Wood, Michael Fitzgibbon, Amy C. Foxgrover, Jessica Lovering