Cheryl Hapke, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 63
Regional beach/cliff system dynamics along the california coast
The coast of California is comprised of both sandy shorelines and cliffed coastline, and in many areas these features spatially coincide. In order to better understand the regional trends of change along the California coast, the U.S. Geological Survey is quantifying both sandy shoreline change and coastal cliff retreat for the state. The resulting database was used to examine the dynamics of the
Authors
C.J. Hapke, Don Reid
Long-term and storm-related shoreline change trends in the Florida Gulf Islands National Seashore
Coastal erosion on Northern Gulf of Mexico barrier islands is an ongoing issue that was exacerbated by the storm seasons of 2004 and 2005 when several hurricanes made landfall in the Gulf of Mexico. Two units of the Gulf Islands National Seashore (GUIS), located on Santa Rosa Island, a barrier island off the Panhandle coast of Florida, were highly impacted during the hurricanes of 2004 (Ivan) and
Authors
C.J. Hapke, M. Christiano
The National Assessment of Shoreline Change: A GIS compilation of vector shorelines and associated shoreline change data for the sandy shorelines of the California coast
Introduction
The Coastal and Marine Geology Program of the U.S. Geological Survey has generated a comprehensive data clearinghouse of digital vector shorelines and shoreline change rates for the sandy shoreline along the California open coast. These data, which are presented herein, were compiled as part of the U.S. Geological Survey's National Assessment of Shoreline Change Project.
Beach e
Authors
Cheryl J. Hapke, David Reid
National Assessment of Shoreline Change Part 3: Historical Shoreline Change and Associated Coastal Land Loss Along Sandy Shorelines of the California Coast
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, David Reid, Bruce M. Richmond, Peter Ruggiero, Jeff List
Coastal landslide material loss rates associated with severe climatic events
Deep-seated landslides along the California coast deliver large amounts of material to the nearshore littoral environment. Landslide movement, a combined result of slope base undercutting by waves and ground saturation, is highly episodic. Movement occurs primarily during periods of high rainfall and large waves, such as those associated with El Nin??o events. This analysis applies remote-sensing
Authors
C.J. Hapke, K.R. Green
Rates of landsliding and cliff retreat along the Big Sur Coast, California— Measuring a crucial baseline
No abstract available.
Authors
Cheryl J. Hapke, Krystal R. Green
Coastal change rates and patterns: Kaloko-Honokohau National Historical Park, Hawai'i
A collaborative project between the U.S. Geological Survey's Coastal and Marine Geology Program and the National Park Service (NPS) has been developed to create an inventory of geologic resources for National Park Service lands on the Big Island of Hawai'i. The NPS Geologic Resources Inventories are recognized as essential for the effective management, interpretation, and understanding of vital pa
Authors
Cheryl J. Hapke, Rick Gmirkin, Bruce M. Richmond
Estimation of regional material yield from coastal landslides based on historical digital terrain modelling
High-resolution historical (1942) and recent (1994) digital terrain models were derived from aerial photographs along the Big Sur coastline in central California to measure the long-term volume of material that enters the nearshore environment. During the 52-year measurement time period, an average of 21 000 ?? 3100 m3 km-1 a-1 of material was eroded from nine study sections distributed along the
Authors
C.J. Hapke
Decadal-scale analysis of coastal landslides along the Big Sur coast: Rates and processes
No abstract available.
Authors
Cheryl J. Hapke, Krystal R. Green
Beach systems: sediment yield from Big Sur coastal landslides
No abstract available.
Authors
Cheryl Hapke
Science and Products
Filter Total Items: 63
Regional beach/cliff system dynamics along the california coast
The coast of California is comprised of both sandy shorelines and cliffed coastline, and in many areas these features spatially coincide. In order to better understand the regional trends of change along the California coast, the U.S. Geological Survey is quantifying both sandy shoreline change and coastal cliff retreat for the state. The resulting database was used to examine the dynamics of the
Authors
C.J. Hapke, Don Reid
Long-term and storm-related shoreline change trends in the Florida Gulf Islands National Seashore
Coastal erosion on Northern Gulf of Mexico barrier islands is an ongoing issue that was exacerbated by the storm seasons of 2004 and 2005 when several hurricanes made landfall in the Gulf of Mexico. Two units of the Gulf Islands National Seashore (GUIS), located on Santa Rosa Island, a barrier island off the Panhandle coast of Florida, were highly impacted during the hurricanes of 2004 (Ivan) and
Authors
C.J. Hapke, M. Christiano
The National Assessment of Shoreline Change: A GIS compilation of vector shorelines and associated shoreline change data for the sandy shorelines of the California coast
Introduction
The Coastal and Marine Geology Program of the U.S. Geological Survey has generated a comprehensive data clearinghouse of digital vector shorelines and shoreline change rates for the sandy shoreline along the California open coast. These data, which are presented herein, were compiled as part of the U.S. Geological Survey's National Assessment of Shoreline Change Project.
Beach e
Authors
Cheryl J. Hapke, David Reid
National Assessment of Shoreline Change Part 3: Historical Shoreline Change and Associated Coastal Land Loss Along Sandy Shorelines of the California Coast
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, David Reid, Bruce M. Richmond, Peter Ruggiero, Jeff List
Coastal landslide material loss rates associated with severe climatic events
Deep-seated landslides along the California coast deliver large amounts of material to the nearshore littoral environment. Landslide movement, a combined result of slope base undercutting by waves and ground saturation, is highly episodic. Movement occurs primarily during periods of high rainfall and large waves, such as those associated with El Nin??o events. This analysis applies remote-sensing
Authors
C.J. Hapke, K.R. Green
Rates of landsliding and cliff retreat along the Big Sur Coast, California— Measuring a crucial baseline
No abstract available.
Authors
Cheryl J. Hapke, Krystal R. Green
Coastal change rates and patterns: Kaloko-Honokohau National Historical Park, Hawai'i
A collaborative project between the U.S. Geological Survey's Coastal and Marine Geology Program and the National Park Service (NPS) has been developed to create an inventory of geologic resources for National Park Service lands on the Big Island of Hawai'i. The NPS Geologic Resources Inventories are recognized as essential for the effective management, interpretation, and understanding of vital pa
Authors
Cheryl J. Hapke, Rick Gmirkin, Bruce M. Richmond
Estimation of regional material yield from coastal landslides based on historical digital terrain modelling
High-resolution historical (1942) and recent (1994) digital terrain models were derived from aerial photographs along the Big Sur coastline in central California to measure the long-term volume of material that enters the nearshore environment. During the 52-year measurement time period, an average of 21 000 ?? 3100 m3 km-1 a-1 of material was eroded from nine study sections distributed along the
Authors
C.J. Hapke
Decadal-scale analysis of coastal landslides along the Big Sur coast: Rates and processes
No abstract available.
Authors
Cheryl J. Hapke, Krystal R. Green
Beach systems: sediment yield from Big Sur coastal landslides
No abstract available.
Authors
Cheryl Hapke