Cheryl Hapke, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 63
Modification of the Quaternary stratigraphic framework of the inner-continental shelf by Holocene marine transgression: An example offshore of Fire Island, New York
The inner-continental shelf off Fire Island, New York was mapped in 2011 using interferometric sonar and high-resolution chirp seismic-reflection systems. The area mapped is approximately 50 km long by 8 km wide, extending from Moriches Inlet to Fire Island Inlet in water depths ranging from 8 to 32 m. The morphology of this inner-continental shelf region and modern sediment distribution patterns
Authors
William C. Schwab, Wayne E. Baldwin, Jane F. Denny, Cheryl J. Hapke, Paul T. Gayes, Jeffrey H. List, John C. Warner
The rock coast of the USA
The coastline of the USA is vast and comprises a variety of landform types including barrier islands, mainland beaches, soft bluffed coastlines and hard rocky coasts. The majority of the bluffed and rocky coasts are found in the northeastern part of the country (New England) and along the Pacific coast. Rocky and bluffed landform types are commonly interspersed along the coastline and occur as a r
Authors
Cheryl J. Hapke, Peter N. Adams, Jonathan Allan, Andrew Ashton, Gary B. Griggs, Monty A. Hampton, Joseph Kelly, Adam P. Young
Geomorphic and human influence on large-scale coastal change
An increasing need exists for regional-scale measurements of shoreline change to aid in management and planning decisions over a broad portion of the coast and to inform assessments of coastal vulnerabilities and hazards. A recent dataset of regional shoreline change, covering a large portion of the U.S. East coast (New England and Mid-Atlantic), provides rates of shoreline change over historical
Authors
Cheryl J. Hapke, Meredith G. Kratzmann, Emily A. Himmelstoss
Coastal change from Hurricane Sandy and the 2012-13 winter storm season: Fire Island, New York
The U.S. Geological Survey (USGS) mounted a substantial effort in response to Hurricane Sandy including an assessment of the morphological impacts to the beach and dune system at Fire Island, New York. Field surveys of the beach and dunes collected just prior to and after landfall were used to quantify change in several focus areas. In order to quantify morphologic change along the length of the i
Authors
Cheryl J. Hapke, Owen Brenner, Rachel E. Henderson, B.J. Reynolds
Assessing hazards along our Nation's coasts
Coastal areas are essential to the economic, cultural, and environmental health of the Nation, yet by nature coastal areas are constantly changing due to a variety of events and processes. Extreme storms can cause dramatic changes to our shorelines in a matter of hours, while sea-level rise can profoundly alter coastal environments over decades. These changes can have a devastating impact on coast
Authors
Hilary F. Stockdon, Cheryl J. Hapke, E. Robert Thieler, Nathaniel G. Plant
Geologic evidence for onshore sediment transport from the inner continental shelf: Fire Island, New York
Sediment budget analyses along the south shore of Fire Island, New York, have been conducted and debated in the scientific and coastal engineering literature for decades. It is well documented that a primary component of sediment transport in this system is directed alongshore from E to W, but discrepancies in volumetric sediment budget calculations remain. An additional quantity of sand, averagin
Authors
William C. Schwab, Wayne E. Baldwin, Cheryl J. Hapke, Erika E. Lentz, Paul T. Gayes, Jane F. Denny, Jeffrey H. List, John C. Warner
Improving understanding of near-term barrier island evolution through multi-decadal assessment of morphologic change
Observed morphodynamic changes over multiple decades were coupled with storm-driven run-up characteristics at Fire Island, New York, to explore the influence of wave processes relative to the impacts of other coastal change drivers on the near-term evolution of the barrier island. Historical topography was generated from digital stereo-photogrammetry and compared with more recent lidar surveys to
Authors
Erika E. Lentz, Cheryl J. Hapke, Hilary F. Stockdon, Rachel E. Hehre
Quantifying anthropogenically driven morphologic changes on a barrier island: Fire Island National Seashore, New York
Beach scraping, beach replenishment, and the presence of moderate development have altered the morphology of the dune–beach system at Fire Island National Seashore, located on a barrier island on the south coast of Long Island, New York. Seventeen communities are interspersed with sections of natural, nonmodified land within the park boundary. Beach width, dune elevation change, volume change, and
Authors
Meredith G. Kratzmann, Cheryl J. Hapke
USGS science for the Nation's changing coasts: shoreline change research
The demands of increasing human population in the coastal zone create competition with coastal habitat preservation and with recreational and commercial uses of the coast and nearshore waters. As climate changes over the coming century, these problems facing coastal communities will likely worsen. Good management and policy decision-making require baseline information on the rates, trends, and sci
Authors
Cheryl J. Hapke, E. Robert Thieler
USGS science for the Nation's changing coasts; shoreline change assessment
The coastline of the United States features some of the most popular tourist and recreational destinations in the world and is the site of intense residential, commercial, and industrial development. The coastal zone also has extensive and pristine natural areas, with diverse ecosystems providing essential habitat and resources that support wildlife, fish, and human use. Coastal erosion is a wides
Authors
E. Robert Thieler, Cheryl J. Hapke
Inner shelf morphologic controls on the dynamics of the beach and bar system, Fire Island, New York
The mechanism of sediment exchange between offshore sand ridges and the beach at Fire Island, New York is largely unknown. However, recent evidence from repeat nearshore bathymetry surveys, coupled with the complex but consistent bar morphology and patterns of shoreline change demonstrate that there is a feedback occurring between the regional geologic framework and modern processes. Analysis of b
Authors
Cheryl J. Hapke, William C. Schwab, Paul T. Gayes, Clay McCoy, Richard Viso, Erika E. Lentz
National Assessment of Shoreline Change; historical shoreline change along the New England and Mid-Atlantic coasts
Beach erosion is a chronic problem along many open-ocean shores of the United States. As coastal populations continue to grow and community infrastructures are threatened by erosion, there is increased demand for accurate information regarding past and present trends and rates of shoreline movement. There is also a need for a comprehensive analysis of shoreline movement that is consistent from one
Authors
Cheryl J. Hapke, Emily A. Himmelstoss, Meredith G. Kratzmann, Jeffrey H. List, E. Robert Thieler
Science and Products
Filter Total Items: 63
Modification of the Quaternary stratigraphic framework of the inner-continental shelf by Holocene marine transgression: An example offshore of Fire Island, New York
The inner-continental shelf off Fire Island, New York was mapped in 2011 using interferometric sonar and high-resolution chirp seismic-reflection systems. The area mapped is approximately 50 km long by 8 km wide, extending from Moriches Inlet to Fire Island Inlet in water depths ranging from 8 to 32 m. The morphology of this inner-continental shelf region and modern sediment distribution patterns
Authors
William C. Schwab, Wayne E. Baldwin, Jane F. Denny, Cheryl J. Hapke, Paul T. Gayes, Jeffrey H. List, John C. Warner
The rock coast of the USA
The coastline of the USA is vast and comprises a variety of landform types including barrier islands, mainland beaches, soft bluffed coastlines and hard rocky coasts. The majority of the bluffed and rocky coasts are found in the northeastern part of the country (New England) and along the Pacific coast. Rocky and bluffed landform types are commonly interspersed along the coastline and occur as a r
Authors
Cheryl J. Hapke, Peter N. Adams, Jonathan Allan, Andrew Ashton, Gary B. Griggs, Monty A. Hampton, Joseph Kelly, Adam P. Young
Geomorphic and human influence on large-scale coastal change
An increasing need exists for regional-scale measurements of shoreline change to aid in management and planning decisions over a broad portion of the coast and to inform assessments of coastal vulnerabilities and hazards. A recent dataset of regional shoreline change, covering a large portion of the U.S. East coast (New England and Mid-Atlantic), provides rates of shoreline change over historical
Authors
Cheryl J. Hapke, Meredith G. Kratzmann, Emily A. Himmelstoss
Coastal change from Hurricane Sandy and the 2012-13 winter storm season: Fire Island, New York
The U.S. Geological Survey (USGS) mounted a substantial effort in response to Hurricane Sandy including an assessment of the morphological impacts to the beach and dune system at Fire Island, New York. Field surveys of the beach and dunes collected just prior to and after landfall were used to quantify change in several focus areas. In order to quantify morphologic change along the length of the i
Authors
Cheryl J. Hapke, Owen Brenner, Rachel E. Henderson, B.J. Reynolds
Assessing hazards along our Nation's coasts
Coastal areas are essential to the economic, cultural, and environmental health of the Nation, yet by nature coastal areas are constantly changing due to a variety of events and processes. Extreme storms can cause dramatic changes to our shorelines in a matter of hours, while sea-level rise can profoundly alter coastal environments over decades. These changes can have a devastating impact on coast
Authors
Hilary F. Stockdon, Cheryl J. Hapke, E. Robert Thieler, Nathaniel G. Plant
Geologic evidence for onshore sediment transport from the inner continental shelf: Fire Island, New York
Sediment budget analyses along the south shore of Fire Island, New York, have been conducted and debated in the scientific and coastal engineering literature for decades. It is well documented that a primary component of sediment transport in this system is directed alongshore from E to W, but discrepancies in volumetric sediment budget calculations remain. An additional quantity of sand, averagin
Authors
William C. Schwab, Wayne E. Baldwin, Cheryl J. Hapke, Erika E. Lentz, Paul T. Gayes, Jane F. Denny, Jeffrey H. List, John C. Warner
Improving understanding of near-term barrier island evolution through multi-decadal assessment of morphologic change
Observed morphodynamic changes over multiple decades were coupled with storm-driven run-up characteristics at Fire Island, New York, to explore the influence of wave processes relative to the impacts of other coastal change drivers on the near-term evolution of the barrier island. Historical topography was generated from digital stereo-photogrammetry and compared with more recent lidar surveys to
Authors
Erika E. Lentz, Cheryl J. Hapke, Hilary F. Stockdon, Rachel E. Hehre
Quantifying anthropogenically driven morphologic changes on a barrier island: Fire Island National Seashore, New York
Beach scraping, beach replenishment, and the presence of moderate development have altered the morphology of the dune–beach system at Fire Island National Seashore, located on a barrier island on the south coast of Long Island, New York. Seventeen communities are interspersed with sections of natural, nonmodified land within the park boundary. Beach width, dune elevation change, volume change, and
Authors
Meredith G. Kratzmann, Cheryl J. Hapke
USGS science for the Nation's changing coasts: shoreline change research
The demands of increasing human population in the coastal zone create competition with coastal habitat preservation and with recreational and commercial uses of the coast and nearshore waters. As climate changes over the coming century, these problems facing coastal communities will likely worsen. Good management and policy decision-making require baseline information on the rates, trends, and sci
Authors
Cheryl J. Hapke, E. Robert Thieler
USGS science for the Nation's changing coasts; shoreline change assessment
The coastline of the United States features some of the most popular tourist and recreational destinations in the world and is the site of intense residential, commercial, and industrial development. The coastal zone also has extensive and pristine natural areas, with diverse ecosystems providing essential habitat and resources that support wildlife, fish, and human use. Coastal erosion is a wides
Authors
E. Robert Thieler, Cheryl J. Hapke
Inner shelf morphologic controls on the dynamics of the beach and bar system, Fire Island, New York
The mechanism of sediment exchange between offshore sand ridges and the beach at Fire Island, New York is largely unknown. However, recent evidence from repeat nearshore bathymetry surveys, coupled with the complex but consistent bar morphology and patterns of shoreline change demonstrate that there is a feedback occurring between the regional geologic framework and modern processes. Analysis of b
Authors
Cheryl J. Hapke, William C. Schwab, Paul T. Gayes, Clay McCoy, Richard Viso, Erika E. Lentz
National Assessment of Shoreline Change; historical shoreline change along the New England and Mid-Atlantic coasts
Beach erosion is a chronic problem along many open-ocean shores of the United States. As coastal populations continue to grow and community infrastructures are threatened by erosion, there is increased demand for accurate information regarding past and present trends and rates of shoreline movement. There is also a need for a comprehensive analysis of shoreline movement that is consistent from one
Authors
Cheryl J. Hapke, Emily A. Himmelstoss, Meredith G. Kratzmann, Jeffrey H. List, E. Robert Thieler