Cheryl Hapke, Ph.D. (Former Employee)
Science and Products
The Florida Coastal Mapping Program
The Florida Coastal Mapping Program (FCMaP) is an initiative between Federal and Florida State agencies and institutions to coordinate and facilitate the collection and accessibility of Florida coastal seafloor data in order to fill priority areas and gaps. FCMaP is affiliated with the Florida Institute of Oceanography (FIO) whose activities are guided by the FCMaP Science and Technical Advisory...
Multibeam Bathymetry Data Collected in 2018 offshore of Cedar Key, Florida
The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted a multibeam bathymetry survey of a selected area offshore Cedar Key, Florida (FL) for the Florida Big Bend Pilot Study funded by USGS and the National Oceanic Atmospheric Administration (NOAA). The study involves federal, state, and local agencies who are taking a comprehensive approach...
Hurricane Sandy Beach Response and Recovery at Fire Island, New York-Shoreline, Beach Profile Data, and Breach Shoreline Data, October 2012 to October 2017
Fire Island, New York is the site of a long term coastal morphologic change and processes project conducted by the U.S. Geological Survey (USGS). One of the objectives of the project was to understand the morphologic evolution of the barrier system on a variety of time scales (months-years-decades-centuries). In response to Hurricane Sandy (October 2012), this effort continued with the...
Post Hurricane Sandy Beach Profile Survey-Fire Island Inlet to Moriches Inlet 2013
The U.S. Army Corps of Engineers contracted a beach survey of Fire Island, New York from September 17-October 6, 2013 for the purpose of planning of a beach reconstruction project following Hurricane Sandy. This dataset contains elevation data of subaerial morphology and nearshore bathymetry collected using real time kinematic global positioning system (RTK-GPS) and hydrography...
Ground-based lidar beach topography of Fire Island, New York, January 2012
The U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS-SPCMSC) and the U.S. Army Corps of Engineers Field Research Facility (USACE-FRF) of Duck, NC collaborated to gather alongshore ground-based lidar beach topography at Fire Island, NY. This high-resolution elevation dataset was collected on January 30, 2012 and extends along 31 kilometers (km) of Fire Island...
Hurricane Sandy Beach Response and Recovery at Fire Island, New York: Shoreline, Beach Profile Data, and Breach Shoreline Data: October 2012 to June 2016
Fire Island, New York is the site of a long term coastal morphologic change and processes project conducted by the U.S. Geological Survey (USGS). One of the objectives of the project was to understand the morphologic evolution of the barrier system on a variety of time scales (months-years-decades-centuries). In response to Hurricane Sandy (October 2012), this effort continued with the...
Coastal Topography-Fire Island, New York, 07 May 2012
Lidar-derived bare-earth topography Digital Elevation Model (DEM) mosaic and classified point-cloud datasets for Fire Island, New York, were produced from remotely sensed, geographically referenced elevation measurements collected on May 7, 2012.
Terrestrial-Based Lidar Beach Topography of Fire Island, New York, May 2015
The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) and the USGS Lower Mississippi-Gulf Water Science Center (LMG WSC) in Montgomery, Alabama, collected terrestrial-based light detection and ranging (T-lidar) elevation data at Fire Island, New York. The data were collected on May 18, 2015 as part of the ongoing beach monitoring within Hurricane...
Ground-Based Lidar Beach Topography of Fire Island, New York, April 2014
The U.S. Geological Survey St. Petersburg Coastal and Marine Science Center and the U.S. Army Corps of Engineers Field Research Facility of Duck, NC collaborated to gather alongshore ground-based lidar beach topography at Fire Island, NY. This high-resolution elevation dataset was collected on April 1, 2014, and is part of the USGS\'s ongoing beach monitoring effort under Hurricane Sandy...
Map showing coastal cliff retreat rates along the Big Sur coast, Monterey and San Luis Obispo Counties, California
The average coastal cliff retreat rate along the Big Sur coast is 18 ? 6 cm/yr as measured over a 52-year time period. The erosion reference features measured as the cliff edge include the well-defined cliff edges common to marine terraces, slight breaks in the slope defining the upper edge of the active lower slope, and the road grade. Cliff erosion and retreat are focused in isolated...
Maps showing estimated sediment yield from coastal landslides and active slope distribution along the Big Sur coast, Monterey and San Luis Obispo Counties, California
The 1982-83 and 1997-98 El Ni?os brought very high precipitation to California?s central coast; this precipitation resulted in raised groundwater levels, coastal flooding, and destabilized slopes throughout the region. Large landslides in the coastal mountains of Big Sur in Monterey and San Luis Obispo Counties blocked sections of California State Route 1, closing the road for months at...
Map Showing Seacliff Response to Climatic and Seismic Events, Depot Hill, Santa Cruz County, California
INTRODUCTION The coastal cliffs along much of the central California coast are actively retreating. Large storms and periodic earthquakes are responsible for most of the documented seacliff slope failures. Long-term average erosion rates calculated for this section of coast (Moore and others, 1999) do not provide the spatial or temporal data resolution necessary to identify the processes...
Map Showing Seacliff Response to Climatic and Seismic Events, Seabright Beach, Santa Cruz County, California
Introduction The coastal cliffs along much of the central California coast are actively retreating. Large storms and periodic earthquakes are responsible for most of the documented sea cliff slope failures. Long-term average erosion rates calculated for this section of coast do not provide the spatial or temporal data resolution necessary to identify the processes responsible for retreat...
Map Showing Seacliff Response to Climatic and Seismic Events, Seacliff State Beach, Santa Cruz County, California
INTRODUCTION The coastal cliffs along much of the central California coast are actively retreating. Large storms and periodic earthquakes are responsible for most of the documented seacliff slope failures. Long-term average erosion rates calculated for this section of coast (Moore and others, 1999) do not provide the spatial or temporal data resolution necessary to identify the processes...
Filter Total Items: 63
Cliff Feature Delineation Tool and Baseline Builder version 1.0 user guide
Coastal cliffs constitute 80 percent of the world’s coastline, with seacliffs fronting a large proportion of the U.S. West Coast shoreline, particularly in California. Erosion of coastal cliffs can threaten infrastructure and human life, yet the spatial and temporal scope of cliff studies have been limited by cumbersome traditional methods that rely on the manual interpretation of...
Authors
Alexander C. Seymour, Cheryl J. Hapke, Jonathan Warrick
A federal-state partnership for mapping Florida's coast and seafloor
The Florida Coastal Mapping Program, a partnership of state and federal agencies, has a goal of having modern, consistent, high- resolution sea-floor data for all of Florida’s coastal zone in the next decade to support a myriad of coastal zone science and management applications. One of the early steps in the implementation process is to prioritize and justify mapping needs. This is...
Authors
Cheryl J. Hapke, Ryan Druyor, Rene D. Baumstark, Philip Kramer, Ekaterina Fitos, Xan Fredericks, Elizabeth H. Fetherston-Resch
Florida Coastal Mapping Program—Overview and 2018 workshop report
The Florida Coastal Mapping Program is a nascent but highly relevant program that has the potential to greatly enhance the “Blue Economy” of Florida by coordinating and facilitating sea-floor mapping efforts and aligning partner and stakeholder activities for increased efficiency and cost reduction. Sustained acquisition of modern coastal mapping information for Florida may improve...
Authors
Cheryl J. Hapke, Philip A. Kramer, Elizabeth H. Fetherston-Resch, Rene D. Baumstark, Ryan Druyor, Xan Fredericks, Ekaterina Fitos
A numerical model investigation of the impacts of Hurricane Sandy on water level variability in Great South Bay, New York
Hurricane Sandy was a large and intense storm with high winds that caused total water levels from combined tides and storm surge to reach 4.0 m in the Atlantic Ocean and 2.5 m in Great South Bay (GSB), a back-barrier bay between Fire Island and Long Island, New York. In this study the impact of the hurricane winds and waves are examined in order to understand the flow of ocean water into...
Authors
Vanessa C. C. Bennett, Ryan P. Mulligan, Cheryl J. Hapke
Characterizing storm response and recovery using the beach change envelope: Fire Island, New York
Hurricane Sandy at Fire Island, New York presented unique challenges in the quantification of storm impacts using traditional metrics of coastal change, wherein measured changes (shoreline, dune crest, and volume change) did not fully reflect the substantial changes in sediment redistribution following the storm. We used a time series of beach profile data at Fire Island, New York to...
Authors
Owen T. Brenner, Erika Lentz, Cheryl J. Hapke, Rachel Henderson, Kathleen Wilson, Timothy Nelson
Morphologic evolution of the wilderness area breach at Fire Island, New York—2012–15
IntroductionHurricane Sandy, which made landfall on October 29, 2012, near Atlantic City, New Jersey, had a significant impact on the coastal system along the south shore of Long Island, New York. A record significant wave height of 9.6 meters (m) was measured at wave buoy 44025, approximately 48 kilometers offshore of Fire Island, New York. Surge and runup during the storm resulted in...
Authors
Cheryl J. Hapke, Timothy R. Nelson, Rachel E. Henderson, Owen T. Brenner, Jennifer L. Miselis
Coastal bathymetry data collected in May 2015 from Fire Island, New York—Wilderness breach and shoreface
Scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida, conducted a bathymetric survey of Fire Island from May 6-20, 2015. The USGS is involved in a post-Hurricane Sandy effort to map and monitor the morphologic evolution of the wilderness breach as a part of the Hurricane Sandy Supplemental Project GS2-2B. During...
Authors
Timothy R. Nelson, Jennifer L. Miselis, Cheryl J. Hapke, Owen T. Brenner, Rachel E. Henderson, Billy J. Reynolds, Kathleen E. Wilson
Nearshore sediment thickness, Fire Island, New York
Investigations of coastal change at Fire Island, New York (N.Y.), sought to characterize sediment budgets and determine geologic framework controls on coastal processes. Nearshore sediment thickness is critical for assessing coastal system sediment availability, but it is largely unquantified due to the difficulty of conducting geological or geophysical surveys across the nearshore. This...
Authors
Stanley D. Locker, Jennifer L. Miselis, Noreen A. Buster, Cheryl J. Hapke, Heidi M. Wadman, Jesse E. McNinch, Arnell S. Forde, Chelsea A. Stalk
Bathymetry data collected in October 2014 from Fire Island, New York—The wilderness breach, shoreface, and bay
Scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida, conducted a bathymetric survey of Fire Island, New York, from October 5 to 10, 2014. The U.S. Geological Survey is involved in a post-Hurricane Sandy effort to map and monitor the morphologic evolution of the wilderness breach, which formed in October 2012 during...
Authors
Timothy R. Nelson, Jennifer L. Miselis, Cheryl J. Hapke, Owen T. Brenner, Rachel E. Henderson, Billy J. Reynolds, Kathleen E. Wilson
Decoupling processes and scales of shoreline morphodynamics
Behavior of coastal systems on time scales ranging from single storm events to years and decades is controlled by both small-scale sediment transport processes and large-scale geologic, oceanographic, and morphologic processes. Improved understanding of coastal behavior at multiple time scales is required for refining models that predict potential erosion hazards and for coastal...
Authors
Cheryl J. Hapke, Nathaniel G. Plant, Rachel E. Henderson, William C. Schwab, Timothy R. Nelson
Coastal bathymetry data collected in June 2014 from Fire Island, New York—The wilderness breach and shoreface
Scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida, collected bathymetric data along the upper shoreface and within the wilderness breach at Fire Island, New York, in June 2014. The U.S. Geological Survey is involved in a post-Hurricane Sandy effort to map and monitor the morphologic evolution of the shoreface along Fire...
Authors
Timothy R. Nelson, Jennifer L. Miselis, Cheryl J. Hapke, Kathleen E. Wilson, Rachel E. Henderson, Owen T. Brenner, Billy J. Reynolds, Mark E. Hansen
Terrestrial-based lidar beach topography of Fire Island, New York, June 2014
The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) in Florida and the USGS Lower Mississippi-Gulf Water Science Center (LMG WSC) in Montgomery, Alabama, collaborated to gather alongshore terrestrial-based lidar beach elevation data at Fire Island, New York. This high-resolution elevation dataset was collected on June 11, 2014, to characterize...
Authors
Owen T. Brenner, Cheryl J. Hapke, Kathryn G. Lee, Dustin R. Kimbrow
Cliff Feature Delineation Tool and Baseline Builder, Version 1.0
The CFDT is an automated computer vision application designed to generate 3D line features representing the seacliff top, midpoint, and toe on high-relief coastal cliffs. The program also delineates 3D points on concavities and convexities across the cliff face (termed subsidiary features), which may represent talus deposits, secondary cliff tops, and secondary cliff toes. The tool...
Science and Products
The Florida Coastal Mapping Program
The Florida Coastal Mapping Program (FCMaP) is an initiative between Federal and Florida State agencies and institutions to coordinate and facilitate the collection and accessibility of Florida coastal seafloor data in order to fill priority areas and gaps. FCMaP is affiliated with the Florida Institute of Oceanography (FIO) whose activities are guided by the FCMaP Science and Technical Advisory...
Multibeam Bathymetry Data Collected in 2018 offshore of Cedar Key, Florida
The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted a multibeam bathymetry survey of a selected area offshore Cedar Key, Florida (FL) for the Florida Big Bend Pilot Study funded by USGS and the National Oceanic Atmospheric Administration (NOAA). The study involves federal, state, and local agencies who are taking a comprehensive approach...
Hurricane Sandy Beach Response and Recovery at Fire Island, New York-Shoreline, Beach Profile Data, and Breach Shoreline Data, October 2012 to October 2017
Fire Island, New York is the site of a long term coastal morphologic change and processes project conducted by the U.S. Geological Survey (USGS). One of the objectives of the project was to understand the morphologic evolution of the barrier system on a variety of time scales (months-years-decades-centuries). In response to Hurricane Sandy (October 2012), this effort continued with the...
Post Hurricane Sandy Beach Profile Survey-Fire Island Inlet to Moriches Inlet 2013
The U.S. Army Corps of Engineers contracted a beach survey of Fire Island, New York from September 17-October 6, 2013 for the purpose of planning of a beach reconstruction project following Hurricane Sandy. This dataset contains elevation data of subaerial morphology and nearshore bathymetry collected using real time kinematic global positioning system (RTK-GPS) and hydrography...
Ground-based lidar beach topography of Fire Island, New York, January 2012
The U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (USGS-SPCMSC) and the U.S. Army Corps of Engineers Field Research Facility (USACE-FRF) of Duck, NC collaborated to gather alongshore ground-based lidar beach topography at Fire Island, NY. This high-resolution elevation dataset was collected on January 30, 2012 and extends along 31 kilometers (km) of Fire Island...
Hurricane Sandy Beach Response and Recovery at Fire Island, New York: Shoreline, Beach Profile Data, and Breach Shoreline Data: October 2012 to June 2016
Fire Island, New York is the site of a long term coastal morphologic change and processes project conducted by the U.S. Geological Survey (USGS). One of the objectives of the project was to understand the morphologic evolution of the barrier system on a variety of time scales (months-years-decades-centuries). In response to Hurricane Sandy (October 2012), this effort continued with the...
Coastal Topography-Fire Island, New York, 07 May 2012
Lidar-derived bare-earth topography Digital Elevation Model (DEM) mosaic and classified point-cloud datasets for Fire Island, New York, were produced from remotely sensed, geographically referenced elevation measurements collected on May 7, 2012.
Terrestrial-Based Lidar Beach Topography of Fire Island, New York, May 2015
The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) and the USGS Lower Mississippi-Gulf Water Science Center (LMG WSC) in Montgomery, Alabama, collected terrestrial-based light detection and ranging (T-lidar) elevation data at Fire Island, New York. The data were collected on May 18, 2015 as part of the ongoing beach monitoring within Hurricane...
Ground-Based Lidar Beach Topography of Fire Island, New York, April 2014
The U.S. Geological Survey St. Petersburg Coastal and Marine Science Center and the U.S. Army Corps of Engineers Field Research Facility of Duck, NC collaborated to gather alongshore ground-based lidar beach topography at Fire Island, NY. This high-resolution elevation dataset was collected on April 1, 2014, and is part of the USGS\'s ongoing beach monitoring effort under Hurricane Sandy...
Map showing coastal cliff retreat rates along the Big Sur coast, Monterey and San Luis Obispo Counties, California
The average coastal cliff retreat rate along the Big Sur coast is 18 ? 6 cm/yr as measured over a 52-year time period. The erosion reference features measured as the cliff edge include the well-defined cliff edges common to marine terraces, slight breaks in the slope defining the upper edge of the active lower slope, and the road grade. Cliff erosion and retreat are focused in isolated...
Maps showing estimated sediment yield from coastal landslides and active slope distribution along the Big Sur coast, Monterey and San Luis Obispo Counties, California
The 1982-83 and 1997-98 El Ni?os brought very high precipitation to California?s central coast; this precipitation resulted in raised groundwater levels, coastal flooding, and destabilized slopes throughout the region. Large landslides in the coastal mountains of Big Sur in Monterey and San Luis Obispo Counties blocked sections of California State Route 1, closing the road for months at...
Map Showing Seacliff Response to Climatic and Seismic Events, Depot Hill, Santa Cruz County, California
INTRODUCTION The coastal cliffs along much of the central California coast are actively retreating. Large storms and periodic earthquakes are responsible for most of the documented seacliff slope failures. Long-term average erosion rates calculated for this section of coast (Moore and others, 1999) do not provide the spatial or temporal data resolution necessary to identify the processes...
Map Showing Seacliff Response to Climatic and Seismic Events, Seabright Beach, Santa Cruz County, California
Introduction The coastal cliffs along much of the central California coast are actively retreating. Large storms and periodic earthquakes are responsible for most of the documented sea cliff slope failures. Long-term average erosion rates calculated for this section of coast do not provide the spatial or temporal data resolution necessary to identify the processes responsible for retreat...
Map Showing Seacliff Response to Climatic and Seismic Events, Seacliff State Beach, Santa Cruz County, California
INTRODUCTION The coastal cliffs along much of the central California coast are actively retreating. Large storms and periodic earthquakes are responsible for most of the documented seacliff slope failures. Long-term average erosion rates calculated for this section of coast (Moore and others, 1999) do not provide the spatial or temporal data resolution necessary to identify the processes...
Filter Total Items: 63
Cliff Feature Delineation Tool and Baseline Builder version 1.0 user guide
Coastal cliffs constitute 80 percent of the world’s coastline, with seacliffs fronting a large proportion of the U.S. West Coast shoreline, particularly in California. Erosion of coastal cliffs can threaten infrastructure and human life, yet the spatial and temporal scope of cliff studies have been limited by cumbersome traditional methods that rely on the manual interpretation of...
Authors
Alexander C. Seymour, Cheryl J. Hapke, Jonathan Warrick
A federal-state partnership for mapping Florida's coast and seafloor
The Florida Coastal Mapping Program, a partnership of state and federal agencies, has a goal of having modern, consistent, high- resolution sea-floor data for all of Florida’s coastal zone in the next decade to support a myriad of coastal zone science and management applications. One of the early steps in the implementation process is to prioritize and justify mapping needs. This is...
Authors
Cheryl J. Hapke, Ryan Druyor, Rene D. Baumstark, Philip Kramer, Ekaterina Fitos, Xan Fredericks, Elizabeth H. Fetherston-Resch
Florida Coastal Mapping Program—Overview and 2018 workshop report
The Florida Coastal Mapping Program is a nascent but highly relevant program that has the potential to greatly enhance the “Blue Economy” of Florida by coordinating and facilitating sea-floor mapping efforts and aligning partner and stakeholder activities for increased efficiency and cost reduction. Sustained acquisition of modern coastal mapping information for Florida may improve...
Authors
Cheryl J. Hapke, Philip A. Kramer, Elizabeth H. Fetherston-Resch, Rene D. Baumstark, Ryan Druyor, Xan Fredericks, Ekaterina Fitos
A numerical model investigation of the impacts of Hurricane Sandy on water level variability in Great South Bay, New York
Hurricane Sandy was a large and intense storm with high winds that caused total water levels from combined tides and storm surge to reach 4.0 m in the Atlantic Ocean and 2.5 m in Great South Bay (GSB), a back-barrier bay between Fire Island and Long Island, New York. In this study the impact of the hurricane winds and waves are examined in order to understand the flow of ocean water into...
Authors
Vanessa C. C. Bennett, Ryan P. Mulligan, Cheryl J. Hapke
Characterizing storm response and recovery using the beach change envelope: Fire Island, New York
Hurricane Sandy at Fire Island, New York presented unique challenges in the quantification of storm impacts using traditional metrics of coastal change, wherein measured changes (shoreline, dune crest, and volume change) did not fully reflect the substantial changes in sediment redistribution following the storm. We used a time series of beach profile data at Fire Island, New York to...
Authors
Owen T. Brenner, Erika Lentz, Cheryl J. Hapke, Rachel Henderson, Kathleen Wilson, Timothy Nelson
Morphologic evolution of the wilderness area breach at Fire Island, New York—2012–15
IntroductionHurricane Sandy, which made landfall on October 29, 2012, near Atlantic City, New Jersey, had a significant impact on the coastal system along the south shore of Long Island, New York. A record significant wave height of 9.6 meters (m) was measured at wave buoy 44025, approximately 48 kilometers offshore of Fire Island, New York. Surge and runup during the storm resulted in...
Authors
Cheryl J. Hapke, Timothy R. Nelson, Rachel E. Henderson, Owen T. Brenner, Jennifer L. Miselis
Coastal bathymetry data collected in May 2015 from Fire Island, New York—Wilderness breach and shoreface
Scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida, conducted a bathymetric survey of Fire Island from May 6-20, 2015. The USGS is involved in a post-Hurricane Sandy effort to map and monitor the morphologic evolution of the wilderness breach as a part of the Hurricane Sandy Supplemental Project GS2-2B. During...
Authors
Timothy R. Nelson, Jennifer L. Miselis, Cheryl J. Hapke, Owen T. Brenner, Rachel E. Henderson, Billy J. Reynolds, Kathleen E. Wilson
Nearshore sediment thickness, Fire Island, New York
Investigations of coastal change at Fire Island, New York (N.Y.), sought to characterize sediment budgets and determine geologic framework controls on coastal processes. Nearshore sediment thickness is critical for assessing coastal system sediment availability, but it is largely unquantified due to the difficulty of conducting geological or geophysical surveys across the nearshore. This...
Authors
Stanley D. Locker, Jennifer L. Miselis, Noreen A. Buster, Cheryl J. Hapke, Heidi M. Wadman, Jesse E. McNinch, Arnell S. Forde, Chelsea A. Stalk
Bathymetry data collected in October 2014 from Fire Island, New York—The wilderness breach, shoreface, and bay
Scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida, conducted a bathymetric survey of Fire Island, New York, from October 5 to 10, 2014. The U.S. Geological Survey is involved in a post-Hurricane Sandy effort to map and monitor the morphologic evolution of the wilderness breach, which formed in October 2012 during...
Authors
Timothy R. Nelson, Jennifer L. Miselis, Cheryl J. Hapke, Owen T. Brenner, Rachel E. Henderson, Billy J. Reynolds, Kathleen E. Wilson
Decoupling processes and scales of shoreline morphodynamics
Behavior of coastal systems on time scales ranging from single storm events to years and decades is controlled by both small-scale sediment transport processes and large-scale geologic, oceanographic, and morphologic processes. Improved understanding of coastal behavior at multiple time scales is required for refining models that predict potential erosion hazards and for coastal...
Authors
Cheryl J. Hapke, Nathaniel G. Plant, Rachel E. Henderson, William C. Schwab, Timothy R. Nelson
Coastal bathymetry data collected in June 2014 from Fire Island, New York—The wilderness breach and shoreface
Scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida, collected bathymetric data along the upper shoreface and within the wilderness breach at Fire Island, New York, in June 2014. The U.S. Geological Survey is involved in a post-Hurricane Sandy effort to map and monitor the morphologic evolution of the shoreface along Fire...
Authors
Timothy R. Nelson, Jennifer L. Miselis, Cheryl J. Hapke, Kathleen E. Wilson, Rachel E. Henderson, Owen T. Brenner, Billy J. Reynolds, Mark E. Hansen
Terrestrial-based lidar beach topography of Fire Island, New York, June 2014
The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) in Florida and the USGS Lower Mississippi-Gulf Water Science Center (LMG WSC) in Montgomery, Alabama, collaborated to gather alongshore terrestrial-based lidar beach elevation data at Fire Island, New York. This high-resolution elevation dataset was collected on June 11, 2014, to characterize...
Authors
Owen T. Brenner, Cheryl J. Hapke, Kathryn G. Lee, Dustin R. Kimbrow
Cliff Feature Delineation Tool and Baseline Builder, Version 1.0
The CFDT is an automated computer vision application designed to generate 3D line features representing the seacliff top, midpoint, and toe on high-relief coastal cliffs. The program also delineates 3D points on concavities and convexities across the cliff face (termed subsidiary features), which may represent talus deposits, secondary cliff tops, and secondary cliff toes. The tool...