Christine Kranenburg
Christine Kranenburg is a Cartographer at the St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida.
Science and Products
Filter Total Items: 58
Underwater Photogrammetry Products of Looe Key, Florida From Images Acquired Using the SQUID-5 System in July 2022 Underwater Photogrammetry Products of Looe Key, Florida From Images Acquired Using the SQUID-5 System in July 2022
Underwater images were collected using a towed-surface vehicle with multiple downward-looking underwater cameras developed by the U.S. Geological Survey (USGS). The system is named the Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with Five Cameras (SQUID-5). The raw images and associated navigation data were collected at Looe key, a coral reef located within the...
Underwater Photogrammetry Products of Big Pine Ledge, Florida From Images Acquired Using the SQUID-5 System in July 2022 Underwater Photogrammetry Products of Big Pine Ledge, Florida From Images Acquired Using the SQUID-5 System in July 2022
Underwater images were collected using a towed-surface vehicle with multiple downward-looking underwater cameras developed by the U.S. Geological Survey (USGS). The system is named the Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with Five Cameras (SQUID-5). The raw images and associated navigation data were collected at Big Pine Ledge, a coral reef located within...
Underwater Photogrammetry Products of Summerland Ledge, Florida From Images Acquired Using the SQUID-5 System in July 2022 Underwater Photogrammetry Products of Summerland Ledge, Florida From Images Acquired Using the SQUID-5 System in July 2022
Underwater images were collected using a towed-surface vehicle with multiple downward-looking underwater cameras developed by the U.S. Geological Survey (USGS). The system is named the Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with Five Cameras (SQUID-5). The raw images and associated navigation data were collected at Summerland Ledge, a coral reef located within...
Underwater photogrammetry products of Big Pine Ledge, Florida from images acquired using the SQUID-5 system in July 2021 Underwater photogrammetry products of Big Pine Ledge, Florida from images acquired using the SQUID-5 system in July 2021
Underwater images were collected using a towed-surface vehicle with multiple downward-looking underwater cameras developed by the U.S. Geological Survey (USGS). The system is named the Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with Five Cameras (SQUID-5). The raw images and associated navigation data were collected at Big Pine Ledge, a coral reef located within...
High-resolution Geophysical and Imagery Data Collected in May 2023 Near Fort Hase, Marine Corps Base Hawaii High-resolution Geophysical and Imagery Data Collected in May 2023 Near Fort Hase, Marine Corps Base Hawaii
Scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida (USGS – SPCSMC), conducted a geophysical and imagery survey around Fort Hase Marine Corps Base Hawaii (MCBH) and Coconut Island, on the island of Oahu, Hawaii (HI), during May 2023. During this study, multibeam bathymetry and acoustic backscatter data were collected...
High-resolution Geophysical and Imagery Data Collected in November 2022 Offshore of Boca Chica Key, FL High-resolution Geophysical and Imagery Data Collected in November 2022 Offshore of Boca Chica Key, FL
Scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida (USGS - SPCSMC), conducted a geophysical and imagery survey around Boca Chica Key, Florida, during November 2022. During this study, multibeam bathymetry and acoustic backscatter data were collected aboard the research vessel (R/V) Sallenger using a Reson T50P Dual Head...
Time Series of Aerial Photogrammetry Data and Products of the Delaware Atlantic Coast Time Series of Aerial Photogrammetry Data and Products of the Delaware Atlantic Coast
This data release presents a time series of aerial imagery and derived structure-from-motion (SfM) products collected along the Delaware Atlantic coast with a piloted fixed-wing aircraft. U.S. Geological Survey (USGS) researchers use the aerial imagery and products to assess topographic and landscape change, evaluate nesting habitats for wildlife, and for understanding coastal...
Aerial photogrammetry data and products of the North Carolina coast Aerial photogrammetry data and products of the North Carolina coast
This data release presents structure-from-motion (SfM) products derived from aerial imagery collected along the North Carolina coast in response to storm events and the recovery process. U.S. Geological Survey (USGS) researchers use the aerial imagery and products to assess future coastal vulnerability, nesting habitats for wildlife, and provide data for hurricane impact models. This...
Overlapping seabed images and location data acquired using the SQUID-5 system at Looe Key, Florida, in July 2021, with structure-from-motion derived point cloud, digital elevation model and orthomosaic of submerged topography Overlapping seabed images and location data acquired using the SQUID-5 system at Looe Key, Florida, in July 2021, with structure-from-motion derived point cloud, digital elevation model and orthomosaic of submerged topography
Underwater images were collected using a towed-surface vehicle with multiple downward-looking underwater cameras developed by the U.S. Geological Survey (USGS). The system is named the Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with Five Cameras (SQUID-5). The raw images and associated navigation data were collected at Looe Key, a coral reef located within the...
Overlapping seabed images and location data acquired using the SQUID-5 system at Eastern Dry Rocks coral reef, Florida, in May 2021, with derived point cloud, digital elevation model and orthomosaic of submerged topography Overlapping seabed images and location data acquired using the SQUID-5 system at Eastern Dry Rocks coral reef, Florida, in May 2021, with derived point cloud, digital elevation model and orthomosaic of submerged topography
Underwater images were collected using a towed-surface vehicle with multiple downward-looking underwater cameras developed by the U.S. Geological Survey (USGS). The system is named the Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with Five Cameras (SQUID-5). The raw images and associated navigation data were collected at Eastern Dry Rocks, a coral reef located...
Aerial Imagery of the North Carolina Coast: 2020-05-08 to 2020-05-09 Aerial Imagery of the North Carolina Coast: 2020-05-08 to 2020-05-09
The U.S. Geological Survey (USGS) Remote Sensing Coastal Change (RSCC) project collects aerial imagery along coastal swaths, in response to storm events, with optimized endlap/sidelap and precise position information to create high-resolution orthomosaics, three-dimensional (3D) point clouds, and digital elevation/surface models (DEMs/DSMs) using Structure-from-Motion (SfM)...
Aerial Imagery of the North Carolina Coast: 2020-02-08 to 2020-02-09 Aerial Imagery of the North Carolina Coast: 2020-02-08 to 2020-02-09
The U.S. Geological Survey (USGS) Remote Sensing Coastal Change (RSCC) project collects aerial imagery along coastal swaths, in response to storm events, with optimized endlap/sidelap and precise position information to create high-resolution orthomosaics, three-dimensional (3D) point clouds, and digital elevation/surface models (DEMs/DSMs) using Structure-from-Motion (SfM)...
Land area change analysis following hurricane impacts in Delacroix, Louisiana, 2004--2009 Land area change analysis following hurricane impacts in Delacroix, Louisiana, 2004--2009
The purpose of this project is to provide improved estimates of Louisiana wetland land loss due to hurricane impacts between 2004 and 2009 based upon a change detection mapping analysis that incorporates pre- and post-landfall (Hurricanes Katrina, Rita, Gustav, and Ike) fractional water classification of a combination of high resolution (QuickBird, IKONOS and Geoeye-1) and medium...
Land area change and fractional water maps in the Chenier Plain, Louisiana, following Hurricane Rita (2005) Land area change and fractional water maps in the Chenier Plain, Louisiana, following Hurricane Rita (2005)
In this study, we estimated the changes in land and water coverage of a 1,961-square-kilometer (km2) area in Louisiana's Chenier Plain. The study area is roughly centered on the Sabine National Wildlife Refuge, which was impacted by Hurricane Rita on September 24, 2005. The objective of this study is twofold: (1) to provide pre- and post-Hurricane Rita moderate-resolution (30-meter (m))...
Filter Total Items: 20
Automated generation of an urban synthetic elevation checkpoint network across the North Carolina coastline, USA Automated generation of an urban synthetic elevation checkpoint network across the North Carolina coastline, USA
Lidar and structure from motion-derived digital elevation and surface models have widespread application. Consideration of a topographic model's vertical root mean squared error (RMSEz) and systematic directional bias is important for many of these applications, particularly landscape change detection and measurement. Due to logistic, resource, and time constraints, wide area remotely...
Authors
Alexander C. Seymour, Christine J. Kranenburg, Kara S. Doran
Accurate maps of reef-scale bathymetry with synchronized underwater cameras and GNSS Accurate maps of reef-scale bathymetry with synchronized underwater cameras and GNSS
We investigate the utility of towed underwater camera systems with tightly coupled Global Navigation Satellite System (GNSS) positions to provide reef-scale bathymetric models with millimeter to centimeter resolutions and accuracies with Structure-from-Motion (SfM) photogrammetry. Successful development of these techniques would allow for detailed assessments of benthic conditions...
Authors
Gerald A. Hatcher, Jonathan A. Warrick, Christine J. Kranenburg, Andrew C. Ritchie
Sound-side inundation and seaward erosion of a barrier island during hurricane landfall Sound-side inundation and seaward erosion of a barrier island during hurricane landfall
Barrier islands are especially vulnerable to hurricanes and other large storms, owing to their mobile composition, low elevations, and detachment from the mainland. Conceptual models of barrier-island evolution emphasize ocean-side processes that drive landward migration through overwash, inlet migration, and aeolian transport. In contrast, we found that the impact of Hurricane Dorian...
Authors
Christopher R. Sherwood, Andrew C. Ritchie, Jin-Si R. Over, Christine J. Kranenburg, Jonathan A. Warrick, Jenna A. Brown, Wayne Wright, Alfredo Aretxabaleta, Sara Zeigler, Phillipe Alan Wernette, Daniel D. Buscombe, Christie Hegermiller
By
Ecosystems Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Southwest Biological Science Center, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities
Human-in-the-Loop segmentation of earth surface imagery Human-in-the-Loop segmentation of earth surface imagery
Segmentation, or the classification of pixels (grid cells) in imagery, is ubiquitously applied in the natural sciences. Manual methods are often prohibitively time-consuming, especially those images consisting of small objects and/or significant spatial heterogeneity of colors or textures. Labeling complicated regions of transition that in Earth surface imagery are represented by...
Authors
Daniel D. Buscombe, Evan B. Goldstein, Christopher R. Sherwood, Cameron S Bodine, Jenna A. Brown, Jaycee Favela, Sharon Fitzpatrick, Christine J. Kranenburg, Jin-Si R. Over, Andrew C. Ritchie, Jonathan A. Warrick, Phillipe Alan Wernette
By
Ecosystems Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Southwest Biological Science Center, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities
Developing bare-earth digital elevation models from structure-from-motion data on barrier islands Developing bare-earth digital elevation models from structure-from-motion data on barrier islands
Unoccupied aerial systems can collect aerial imagery that can be used to develop structure-from-motion products with a temporal resolution well-suited to monitoring dynamic barrier island environments. However, topographic data created using photogrammetric techniques such as structure-from-motion represent the surface elevation including the vegetation canopy. Additional processing is...
Authors
Nicholas Enwright, Christine J. Kranenburg, Brett Patton, P. Soupy Dalyander, Jenna A. Brown, Sarai Piazza, Wyatt C Cheney
Processing coastal imagery with Agisoft Metashape Professional Edition, version 1.6—Structure from motion workflow documentation Processing coastal imagery with Agisoft Metashape Professional Edition, version 1.6—Structure from motion workflow documentation
Introduction Structure from motion (SFM) has become an integral technique in coastal change assessment; the U.S. Geological Survey (USGS) used Agisoft Metashape Professional Edition photogrammetry software to develop a workflow that processes coastline aerial imagery collected in response to storms since Hurricane Florence in 2018. This report details step-by-step instructions to create...
Authors
Jin-Si R. Over, Andrew C. Ritchie, Christine J. Kranenburg, Jenna A. Brown, Daniel D. Buscombe, Tom Noble, Christopher R. Sherwood, Jonathan A. Warrick, Phillipe A. Wernette
By
Ecosystems Mission Area, Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Maryland-Delaware-D.C. Water Science Center, Pacific Coastal and Marine Science Center, Southwest Biological Science Center, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, Hurricane Florence, Hurricanes
Accurate bathymetric maps from underwater digital imagery without ground control Accurate bathymetric maps from underwater digital imagery without ground control
Structure-from-Motion (SfM) photogrammetry can be used with digital underwater photographs to generate high-resolution bathymetry and orthomosaics with millimeter-to-centimeter scale resolution at relatively low cost. Although these products are useful for assessing species diversity and health, they have additional utility for quantifying benthic community structure, such as coral...
Authors
Gerry A. Hatcher, Jonathan A. Warrick, Andrew C. Ritchie, Evan T. Dailey, David G. Zawada, Christine J. Kranenburg, Kimberly K. Yates
Depth calibration of the Experimental Advanced Airborne Research Lidar, EAARL-B Depth calibration of the Experimental Advanced Airborne Research Lidar, EAARL-B
Introduction The original National Aeronautics and Space Administration (NASA) Experimental Advanced Airborne Research Lidar (EAARL) was extensively modified to increase the spatial sampling density and to improve performance in water ranging from 3 to 44 meters (m). The new (EAARL-B) sensor features a higher spatial density that was achieved by optically splitting each laser pulse into...
Authors
C. Wayne Wright, Christine J. Kranenburg, Rodolfo J. Troche, Richard W. Mitchell, David B. Nagle
Depth calibration and validation of the Experimental Advanced Airborne Research Lidar, EAARL-B Depth calibration and validation of the Experimental Advanced Airborne Research Lidar, EAARL-B
The original National Aeronautics and Space Administration (NASA) Experimental Advanced Airborne Research Lidar (EAARL), was extensively modified to increase the spatial sampling density and improve performance in water ranging from 3–44 m. The new (EAARL-B) sensor features a 300% increase in spatial density, which was achieved by optically splitting each laser pulse into 3 pulses...
Authors
C. Wayne Wright, Christine J. Kranenburg, Timothy A. Battista, Christopher Parrish
Archive of bathymetry data collected at Cape Canaveral, Florida, 2014 Archive of bathymetry data collected at Cape Canaveral, Florida, 2014
Remotely sensed, geographically referenced elevation measurements of the sea floor, acquired by boat- and aircraft-based survey systems, were produced by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida, for the area at Cape Canaveral. The work was conducted as part of a study to describe an updated bathymetric dataset collected...
Authors
Mark E. Hansen, Nathaniel G. Plant, David M. Thompson, Rodolfo J. Troche, Christine J. Kranenburg, Emily S. Klipp
EAARL-B coastal topography: Chandeleur Islands, Louisiana, 2012: seamless (bare earth and submerged) EAARL-B coastal topography: Chandeleur Islands, Louisiana, 2012: seamless (bare earth and submerged)
These remotely sensed, geographically referenced elevation measurements of light detection and ranging (lidar)-derived seamless (bare-earth and submerged) topography datasets were produced by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida. This project provides datasets acquired on August 7 and 8, 2012, for a portion of the...
Authors
C. Wayne Wright, Emily S. Klipp, Christine J. Kranenburg, Rodolfo J. Troche, Xan Fredericks, Melanie L. Masessa, David B. Nagle
EAARL-B submerged topography: Barnegat Bay, New Jersey, pre-Hurricane Sandy, 2012 EAARL-B submerged topography: Barnegat Bay, New Jersey, pre-Hurricane Sandy, 2012
These remotely sensed, geographically referenced elevation measurements of lidar-derived submerged topography datasets were produced by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida. This project provides highly detailed and accurate datasets for part of Barnegat Bay, New Jersey, acquired pre-Hurricane Sandy on October 18, 22...
Authors
C. Wayne Wright, Rodolfo J. Troche, Emily S. Klipp, Christine J. Kranenburg, Xan Fredericks, David B. Nagle
Science and Products
Filter Total Items: 58
Underwater Photogrammetry Products of Looe Key, Florida From Images Acquired Using the SQUID-5 System in July 2022 Underwater Photogrammetry Products of Looe Key, Florida From Images Acquired Using the SQUID-5 System in July 2022
Underwater images were collected using a towed-surface vehicle with multiple downward-looking underwater cameras developed by the U.S. Geological Survey (USGS). The system is named the Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with Five Cameras (SQUID-5). The raw images and associated navigation data were collected at Looe key, a coral reef located within the...
Underwater Photogrammetry Products of Big Pine Ledge, Florida From Images Acquired Using the SQUID-5 System in July 2022 Underwater Photogrammetry Products of Big Pine Ledge, Florida From Images Acquired Using the SQUID-5 System in July 2022
Underwater images were collected using a towed-surface vehicle with multiple downward-looking underwater cameras developed by the U.S. Geological Survey (USGS). The system is named the Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with Five Cameras (SQUID-5). The raw images and associated navigation data were collected at Big Pine Ledge, a coral reef located within...
Underwater Photogrammetry Products of Summerland Ledge, Florida From Images Acquired Using the SQUID-5 System in July 2022 Underwater Photogrammetry Products of Summerland Ledge, Florida From Images Acquired Using the SQUID-5 System in July 2022
Underwater images were collected using a towed-surface vehicle with multiple downward-looking underwater cameras developed by the U.S. Geological Survey (USGS). The system is named the Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with Five Cameras (SQUID-5). The raw images and associated navigation data were collected at Summerland Ledge, a coral reef located within...
Underwater photogrammetry products of Big Pine Ledge, Florida from images acquired using the SQUID-5 system in July 2021 Underwater photogrammetry products of Big Pine Ledge, Florida from images acquired using the SQUID-5 system in July 2021
Underwater images were collected using a towed-surface vehicle with multiple downward-looking underwater cameras developed by the U.S. Geological Survey (USGS). The system is named the Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with Five Cameras (SQUID-5). The raw images and associated navigation data were collected at Big Pine Ledge, a coral reef located within...
High-resolution Geophysical and Imagery Data Collected in May 2023 Near Fort Hase, Marine Corps Base Hawaii High-resolution Geophysical and Imagery Data Collected in May 2023 Near Fort Hase, Marine Corps Base Hawaii
Scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida (USGS – SPCSMC), conducted a geophysical and imagery survey around Fort Hase Marine Corps Base Hawaii (MCBH) and Coconut Island, on the island of Oahu, Hawaii (HI), during May 2023. During this study, multibeam bathymetry and acoustic backscatter data were collected...
High-resolution Geophysical and Imagery Data Collected in November 2022 Offshore of Boca Chica Key, FL High-resolution Geophysical and Imagery Data Collected in November 2022 Offshore of Boca Chica Key, FL
Scientists from the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center in St. Petersburg, Florida (USGS - SPCSMC), conducted a geophysical and imagery survey around Boca Chica Key, Florida, during November 2022. During this study, multibeam bathymetry and acoustic backscatter data were collected aboard the research vessel (R/V) Sallenger using a Reson T50P Dual Head...
Time Series of Aerial Photogrammetry Data and Products of the Delaware Atlantic Coast Time Series of Aerial Photogrammetry Data and Products of the Delaware Atlantic Coast
This data release presents a time series of aerial imagery and derived structure-from-motion (SfM) products collected along the Delaware Atlantic coast with a piloted fixed-wing aircraft. U.S. Geological Survey (USGS) researchers use the aerial imagery and products to assess topographic and landscape change, evaluate nesting habitats for wildlife, and for understanding coastal...
Aerial photogrammetry data and products of the North Carolina coast Aerial photogrammetry data and products of the North Carolina coast
This data release presents structure-from-motion (SfM) products derived from aerial imagery collected along the North Carolina coast in response to storm events and the recovery process. U.S. Geological Survey (USGS) researchers use the aerial imagery and products to assess future coastal vulnerability, nesting habitats for wildlife, and provide data for hurricane impact models. This...
Overlapping seabed images and location data acquired using the SQUID-5 system at Looe Key, Florida, in July 2021, with structure-from-motion derived point cloud, digital elevation model and orthomosaic of submerged topography Overlapping seabed images and location data acquired using the SQUID-5 system at Looe Key, Florida, in July 2021, with structure-from-motion derived point cloud, digital elevation model and orthomosaic of submerged topography
Underwater images were collected using a towed-surface vehicle with multiple downward-looking underwater cameras developed by the U.S. Geological Survey (USGS). The system is named the Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with Five Cameras (SQUID-5). The raw images and associated navigation data were collected at Looe Key, a coral reef located within the...
Overlapping seabed images and location data acquired using the SQUID-5 system at Eastern Dry Rocks coral reef, Florida, in May 2021, with derived point cloud, digital elevation model and orthomosaic of submerged topography Overlapping seabed images and location data acquired using the SQUID-5 system at Eastern Dry Rocks coral reef, Florida, in May 2021, with derived point cloud, digital elevation model and orthomosaic of submerged topography
Underwater images were collected using a towed-surface vehicle with multiple downward-looking underwater cameras developed by the U.S. Geological Survey (USGS). The system is named the Structure-from-Motion (SfM) Quantitative Underwater Imaging Device with Five Cameras (SQUID-5). The raw images and associated navigation data were collected at Eastern Dry Rocks, a coral reef located...
Aerial Imagery of the North Carolina Coast: 2020-05-08 to 2020-05-09 Aerial Imagery of the North Carolina Coast: 2020-05-08 to 2020-05-09
The U.S. Geological Survey (USGS) Remote Sensing Coastal Change (RSCC) project collects aerial imagery along coastal swaths, in response to storm events, with optimized endlap/sidelap and precise position information to create high-resolution orthomosaics, three-dimensional (3D) point clouds, and digital elevation/surface models (DEMs/DSMs) using Structure-from-Motion (SfM)...
Aerial Imagery of the North Carolina Coast: 2020-02-08 to 2020-02-09 Aerial Imagery of the North Carolina Coast: 2020-02-08 to 2020-02-09
The U.S. Geological Survey (USGS) Remote Sensing Coastal Change (RSCC) project collects aerial imagery along coastal swaths, in response to storm events, with optimized endlap/sidelap and precise position information to create high-resolution orthomosaics, three-dimensional (3D) point clouds, and digital elevation/surface models (DEMs/DSMs) using Structure-from-Motion (SfM)...
Land area change analysis following hurricane impacts in Delacroix, Louisiana, 2004--2009 Land area change analysis following hurricane impacts in Delacroix, Louisiana, 2004--2009
The purpose of this project is to provide improved estimates of Louisiana wetland land loss due to hurricane impacts between 2004 and 2009 based upon a change detection mapping analysis that incorporates pre- and post-landfall (Hurricanes Katrina, Rita, Gustav, and Ike) fractional water classification of a combination of high resolution (QuickBird, IKONOS and Geoeye-1) and medium...
Land area change and fractional water maps in the Chenier Plain, Louisiana, following Hurricane Rita (2005) Land area change and fractional water maps in the Chenier Plain, Louisiana, following Hurricane Rita (2005)
In this study, we estimated the changes in land and water coverage of a 1,961-square-kilometer (km2) area in Louisiana's Chenier Plain. The study area is roughly centered on the Sabine National Wildlife Refuge, which was impacted by Hurricane Rita on September 24, 2005. The objective of this study is twofold: (1) to provide pre- and post-Hurricane Rita moderate-resolution (30-meter (m))...
Filter Total Items: 20
Automated generation of an urban synthetic elevation checkpoint network across the North Carolina coastline, USA Automated generation of an urban synthetic elevation checkpoint network across the North Carolina coastline, USA
Lidar and structure from motion-derived digital elevation and surface models have widespread application. Consideration of a topographic model's vertical root mean squared error (RMSEz) and systematic directional bias is important for many of these applications, particularly landscape change detection and measurement. Due to logistic, resource, and time constraints, wide area remotely...
Authors
Alexander C. Seymour, Christine J. Kranenburg, Kara S. Doran
Accurate maps of reef-scale bathymetry with synchronized underwater cameras and GNSS Accurate maps of reef-scale bathymetry with synchronized underwater cameras and GNSS
We investigate the utility of towed underwater camera systems with tightly coupled Global Navigation Satellite System (GNSS) positions to provide reef-scale bathymetric models with millimeter to centimeter resolutions and accuracies with Structure-from-Motion (SfM) photogrammetry. Successful development of these techniques would allow for detailed assessments of benthic conditions...
Authors
Gerald A. Hatcher, Jonathan A. Warrick, Christine J. Kranenburg, Andrew C. Ritchie
Sound-side inundation and seaward erosion of a barrier island during hurricane landfall Sound-side inundation and seaward erosion of a barrier island during hurricane landfall
Barrier islands are especially vulnerable to hurricanes and other large storms, owing to their mobile composition, low elevations, and detachment from the mainland. Conceptual models of barrier-island evolution emphasize ocean-side processes that drive landward migration through overwash, inlet migration, and aeolian transport. In contrast, we found that the impact of Hurricane Dorian...
Authors
Christopher R. Sherwood, Andrew C. Ritchie, Jin-Si R. Over, Christine J. Kranenburg, Jonathan A. Warrick, Jenna A. Brown, Wayne Wright, Alfredo Aretxabaleta, Sara Zeigler, Phillipe Alan Wernette, Daniel D. Buscombe, Christie Hegermiller
By
Ecosystems Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Southwest Biological Science Center, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities
Human-in-the-Loop segmentation of earth surface imagery Human-in-the-Loop segmentation of earth surface imagery
Segmentation, or the classification of pixels (grid cells) in imagery, is ubiquitously applied in the natural sciences. Manual methods are often prohibitively time-consuming, especially those images consisting of small objects and/or significant spatial heterogeneity of colors or textures. Labeling complicated regions of transition that in Earth surface imagery are represented by...
Authors
Daniel D. Buscombe, Evan B. Goldstein, Christopher R. Sherwood, Cameron S Bodine, Jenna A. Brown, Jaycee Favela, Sharon Fitzpatrick, Christine J. Kranenburg, Jin-Si R. Over, Andrew C. Ritchie, Jonathan A. Warrick, Phillipe Alan Wernette
By
Ecosystems Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Southwest Biological Science Center, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities
Developing bare-earth digital elevation models from structure-from-motion data on barrier islands Developing bare-earth digital elevation models from structure-from-motion data on barrier islands
Unoccupied aerial systems can collect aerial imagery that can be used to develop structure-from-motion products with a temporal resolution well-suited to monitoring dynamic barrier island environments. However, topographic data created using photogrammetric techniques such as structure-from-motion represent the surface elevation including the vegetation canopy. Additional processing is...
Authors
Nicholas Enwright, Christine J. Kranenburg, Brett Patton, P. Soupy Dalyander, Jenna A. Brown, Sarai Piazza, Wyatt C Cheney
Processing coastal imagery with Agisoft Metashape Professional Edition, version 1.6—Structure from motion workflow documentation Processing coastal imagery with Agisoft Metashape Professional Edition, version 1.6—Structure from motion workflow documentation
Introduction Structure from motion (SFM) has become an integral technique in coastal change assessment; the U.S. Geological Survey (USGS) used Agisoft Metashape Professional Edition photogrammetry software to develop a workflow that processes coastline aerial imagery collected in response to storms since Hurricane Florence in 2018. This report details step-by-step instructions to create...
Authors
Jin-Si R. Over, Andrew C. Ritchie, Christine J. Kranenburg, Jenna A. Brown, Daniel D. Buscombe, Tom Noble, Christopher R. Sherwood, Jonathan A. Warrick, Phillipe A. Wernette
By
Ecosystems Mission Area, Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Maryland-Delaware-D.C. Water Science Center, Pacific Coastal and Marine Science Center, Southwest Biological Science Center, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, Hurricane Florence, Hurricanes
Accurate bathymetric maps from underwater digital imagery without ground control Accurate bathymetric maps from underwater digital imagery without ground control
Structure-from-Motion (SfM) photogrammetry can be used with digital underwater photographs to generate high-resolution bathymetry and orthomosaics with millimeter-to-centimeter scale resolution at relatively low cost. Although these products are useful for assessing species diversity and health, they have additional utility for quantifying benthic community structure, such as coral...
Authors
Gerry A. Hatcher, Jonathan A. Warrick, Andrew C. Ritchie, Evan T. Dailey, David G. Zawada, Christine J. Kranenburg, Kimberly K. Yates
Depth calibration of the Experimental Advanced Airborne Research Lidar, EAARL-B Depth calibration of the Experimental Advanced Airborne Research Lidar, EAARL-B
Introduction The original National Aeronautics and Space Administration (NASA) Experimental Advanced Airborne Research Lidar (EAARL) was extensively modified to increase the spatial sampling density and to improve performance in water ranging from 3 to 44 meters (m). The new (EAARL-B) sensor features a higher spatial density that was achieved by optically splitting each laser pulse into...
Authors
C. Wayne Wright, Christine J. Kranenburg, Rodolfo J. Troche, Richard W. Mitchell, David B. Nagle
Depth calibration and validation of the Experimental Advanced Airborne Research Lidar, EAARL-B Depth calibration and validation of the Experimental Advanced Airborne Research Lidar, EAARL-B
The original National Aeronautics and Space Administration (NASA) Experimental Advanced Airborne Research Lidar (EAARL), was extensively modified to increase the spatial sampling density and improve performance in water ranging from 3–44 m. The new (EAARL-B) sensor features a 300% increase in spatial density, which was achieved by optically splitting each laser pulse into 3 pulses...
Authors
C. Wayne Wright, Christine J. Kranenburg, Timothy A. Battista, Christopher Parrish
Archive of bathymetry data collected at Cape Canaveral, Florida, 2014 Archive of bathymetry data collected at Cape Canaveral, Florida, 2014
Remotely sensed, geographically referenced elevation measurements of the sea floor, acquired by boat- and aircraft-based survey systems, were produced by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida, for the area at Cape Canaveral. The work was conducted as part of a study to describe an updated bathymetric dataset collected...
Authors
Mark E. Hansen, Nathaniel G. Plant, David M. Thompson, Rodolfo J. Troche, Christine J. Kranenburg, Emily S. Klipp
EAARL-B coastal topography: Chandeleur Islands, Louisiana, 2012: seamless (bare earth and submerged) EAARL-B coastal topography: Chandeleur Islands, Louisiana, 2012: seamless (bare earth and submerged)
These remotely sensed, geographically referenced elevation measurements of light detection and ranging (lidar)-derived seamless (bare-earth and submerged) topography datasets were produced by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida. This project provides datasets acquired on August 7 and 8, 2012, for a portion of the...
Authors
C. Wayne Wright, Emily S. Klipp, Christine J. Kranenburg, Rodolfo J. Troche, Xan Fredericks, Melanie L. Masessa, David B. Nagle
EAARL-B submerged topography: Barnegat Bay, New Jersey, pre-Hurricane Sandy, 2012 EAARL-B submerged topography: Barnegat Bay, New Jersey, pre-Hurricane Sandy, 2012
These remotely sensed, geographically referenced elevation measurements of lidar-derived submerged topography datasets were produced by the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center, St. Petersburg, Florida. This project provides highly detailed and accurate datasets for part of Barnegat Bay, New Jersey, acquired pre-Hurricane Sandy on October 18, 22...
Authors
C. Wayne Wright, Rodolfo J. Troche, Emily S. Klipp, Christine J. Kranenburg, Xan Fredericks, David B. Nagle