Skip to main content
U.S. flag

An official website of the United States government

Joseph Long (Former Employee)

Science and Products

Filter Total Items: 13
USGS science for a changing world logo

Online Merging and Gridding of Topographic and Bathymetric Data Sources

Digital Elevation Models (DEM) provide details of the earth’s surface and are used for visualization, physical modeling, and elevation change analysis. Creating DEMs in coastal environments is complicated by the highly ephemeral nature of the coast and the need to span the land-water interface. This requires merging multiple bathymetric and topographic datasets that have been collected...
By
Community for Data Integration (CDI)
Online Merging and Gridding of Topographic and Bathymetric Data Sources

Online Merging and Gridding of Topographic and Bathymetric Data Sources

Digital Elevation Models (DEM) provide details of the earth’s surface and are used for visualization, physical modeling, and elevation change analysis. Creating DEMs in coastal environments is complicated by the highly ephemeral nature of the coast and the need to span the land-water interface. This requires merging multiple bathymetric and topographic datasets that have been collected at
Learn More
Filter Total Items: 17

EAARL Coastal Topography-Louisiana, Alabama, and Florida, 2008: First Return Elevation Data EAARL Coastal Topography-Louisiana, Alabama, and Florida, 2008: First Return Elevation Data

This dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides first and last return elevation data collected during a June 24, 2008 airborne lidar survey for the Chandeleur Islands, LA, Dauphin Island, AL, Santa Rosa Island, FL, and Bon Secour, AL. Elevation measurements were collected over the area using the National Aeronautics and...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

EAARL Coastal Topography-Louisiana, Mississippi and Alabama, September 2006: First and Last Return Elevation Data EAARL Coastal Topography-Louisiana, Mississippi and Alabama, September 2006: First and Last Return Elevation Data

This dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides first and last return elevation data collected during a September 20-22, 2006 airborne lidar survey for the Chandeleur Islands, Louisiana, and Cat Island, Mississippi, through Dauphin Island, Alabama. Elevation measurements were collected over the area using the National...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

EAARL Coastal Topography-Dauphin Island, Post-Hurricane Katrina, 2005 EAARL Coastal Topography-Dauphin Island, Post-Hurricane Katrina, 2005

These datasets, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for Dauphin Island, Alabama. Elevation measurements were acquired by the Experimental Advanced Airborne Research Lidar (EAARL) during September 2005, immediately following Hurricane Katrina landfall.
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Hurricanes

EAARL Coastal Topography-Dauphin Island, 2010 EAARL Coastal Topography-Dauphin Island, 2010

These datasets, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for Dauphin Island, Alabama. Elevation measurements were acquired by the Experimental Advanced Airborne Research Lidar (EAARL) on July 24, 2010, one day before remnants from the dissipated Tropical Storm Bonnie came ashore.
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

Beach Slopes of North Carolina: Salvo to Duck Beach Slopes of North Carolina: Salvo to Duck

The National Assessment of Coastal Change Hazards project derives features of beach morphology from lidar elevation data for the purpose of understanding and predicting storm impacts to our nation\'s coastlines. This dataset defines mean beach slopes along the United States Southeast Atlantic Ocean from Salvo to Duck, North Carolina for data collected at various times between 1996 and...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center
No results found.
Filter Total Items: 46

Toward a national coastal hazard forecast of total water levels Toward a national coastal hazard forecast of total water levels

Storm surge and large waves combine to erode beaches, cause marsh and coral decay, and inundate low-elevation areas, resulting in hazards to coastal communities and loss of natural resources. The USGS, in collaboration with NOAA, is developing a real-time system to provide ∼ 6-day forecasts of total water levels (TWLs) combining tides, storm surge, and wave runup. TWL is compared with...
Authors
Alfredo Aretxabaleta, Kara S. Doran, Joseph W. Long, Li H. Erikson
By
Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center

Surrogate model development for coastal dune erosion under storm conditions Surrogate model development for coastal dune erosion under storm conditions

Early coastal dune erosion predictions are essential to avoid potential flood consequences but most dune erosion numerical models are computationally expensive, hence their application in Early Warning Systems is limited. Here, based on a combination of optimally sampled synthetic sea storms with a calibrated and validated XBeach model, we develop a surrogate model capable of producing...
Authors
Victor Malagon-Santos, Thomas Wahl, Joseph W Long, Davina Passeri, Nathaniel G. Plant
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

Assessing the impact of open-ocean and back-barrier shoreline change on Dauphin Island, Alabama, at multiple time scales over the last 75 years Assessing the impact of open-ocean and back-barrier shoreline change on Dauphin Island, Alabama, at multiple time scales over the last 75 years

Dauphin Island and Little Dauphin Island, collectively, make up a geomorphically complex barrier island system located along Alabama’s southern coast, separating Mississippi Sound from the Gulf of Mexico and Mobile Bay. The barrier island system provides numerous economical (tourism, fisheries) and natural (habitat for migratory birds, natural protection of inland and coastal areas from...
Authors
Christopher G. Smith, Joseph W. Long, Rachel E. Henderson, Paul R. Nelson
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Gulf of America

Hydrodynamics and sediment mobility processes over a degraded senile coral reef Hydrodynamics and sediment mobility processes over a degraded senile coral reef

Coral reefs can influence hydrodynamics and morphodynamics by dissipating and refracting incident wave energy, modifying circulation patterns, and altering sediment transport pathways. In this study, the sediment and hydrodynamic response of a senile (dead) barrier reef (Crocker Reef, located in the upper portion of the Florida Reef Tract) to storms and quiescent conditions was evaluated...
Authors
Legna M. Torres-Garcia, P. Soupy Dalyander, Joseph W. Long, David G. Zawada, Kimberly K. Yates, Christopher Moore, Maitane Olabarrieta
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

Effects of proposed navigation channel improvements on sediment transport in Mobile Harbor, Alabama Effects of proposed navigation channel improvements on sediment transport in Mobile Harbor, Alabama

A Delft3D model was developed to evaluate the potential effects of proposed navigation channel deepening and widening in Mobile Harbor, Alabama. The model performance was assessed through comparisons of modeled and observed data of water levels, velocities, and bed level changes; the model captured hydrodynamic and sediment transport patterns in the study area with skill. The validated...
Authors
Davina Passeri, Joseph W. Long, Robert L. Jenkins, David M. Thompson
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

Dynamic modeling of barrier island response to hurricane storm surge under future sea level rise Dynamic modeling of barrier island response to hurricane storm surge under future sea level rise

Sea level rise (SLR) has the potential to exacerbate the impacts of extreme storm events on the coastal landscape. This study examines the coupled interactions of SLR on storm-driven hydrodynamics and barrier island morphology. A numerical model is used to simulate the hydrodynamic and morphodynamic impacts of two Gulf of Mexico hurricanes under present-day and future sea levels. SLR...
Authors
Davina Passeri, Matthew V. Bilskie, Nathaniel G. Plant, Joseph W. Long, Scott C. Hagen
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

Non-USGS Publications**

Long, J. W., and H. T. Özkan-Haller, 2009, Low-frequency characteristics of wave group–forced vortices, J. Geophys. Res., 114, C08004, doi:10.1029/2008JC004894.
Scott, C.P., Cox, D.T., Maddux, T.B., and Long, J.W., 2005, Large-scale laboratory observations of turbulence on a fixed barred beach: Measurement Science and Technology, v. 16, p. 1903, doi: 10.1088/0957-0233/16/10/004.
Long, J. W., and H. T. Özkan-Haller, 2005, Offshore controls on nearshore rip currents, J. Geophys. Res., 110, C12007, doi:10.1029/2005JC003018.

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

Science and Products

Filter Total Items: 13
USGS science for a changing world logo

Online Merging and Gridding of Topographic and Bathymetric Data Sources

Digital Elevation Models (DEM) provide details of the earth’s surface and are used for visualization, physical modeling, and elevation change analysis. Creating DEMs in coastal environments is complicated by the highly ephemeral nature of the coast and the need to span the land-water interface. This requires merging multiple bathymetric and topographic datasets that have been collected...
By
Community for Data Integration (CDI)
Online Merging and Gridding of Topographic and Bathymetric Data Sources

Online Merging and Gridding of Topographic and Bathymetric Data Sources

Digital Elevation Models (DEM) provide details of the earth’s surface and are used for visualization, physical modeling, and elevation change analysis. Creating DEMs in coastal environments is complicated by the highly ephemeral nature of the coast and the need to span the land-water interface. This requires merging multiple bathymetric and topographic datasets that have been collected at
Learn More
Filter Total Items: 17

EAARL Coastal Topography-Louisiana, Alabama, and Florida, 2008: First Return Elevation Data EAARL Coastal Topography-Louisiana, Alabama, and Florida, 2008: First Return Elevation Data

This dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides first and last return elevation data collected during a June 24, 2008 airborne lidar survey for the Chandeleur Islands, LA, Dauphin Island, AL, Santa Rosa Island, FL, and Bon Secour, AL. Elevation measurements were collected over the area using the National Aeronautics and...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

EAARL Coastal Topography-Louisiana, Mississippi and Alabama, September 2006: First and Last Return Elevation Data EAARL Coastal Topography-Louisiana, Mississippi and Alabama, September 2006: First and Last Return Elevation Data

This dataset, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provides first and last return elevation data collected during a September 20-22, 2006 airborne lidar survey for the Chandeleur Islands, Louisiana, and Cat Island, Mississippi, through Dauphin Island, Alabama. Elevation measurements were collected over the area using the National...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

EAARL Coastal Topography-Dauphin Island, Post-Hurricane Katrina, 2005 EAARL Coastal Topography-Dauphin Island, Post-Hurricane Katrina, 2005

These datasets, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for Dauphin Island, Alabama. Elevation measurements were acquired by the Experimental Advanced Airborne Research Lidar (EAARL) during September 2005, immediately following Hurricane Katrina landfall.
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Hurricanes

EAARL Coastal Topography-Dauphin Island, 2010 EAARL Coastal Topography-Dauphin Island, 2010

These datasets, prepared by the U.S. Geological Survey St. Petersburg Coastal and Marine Science Center, provide lidar-derived first-surface and bare-earth topography for Dauphin Island, Alabama. Elevation measurements were acquired by the Experimental Advanced Airborne Research Lidar (EAARL) on July 24, 2010, one day before remnants from the dissipated Tropical Storm Bonnie came ashore.
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

Beach Slopes of North Carolina: Salvo to Duck Beach Slopes of North Carolina: Salvo to Duck

The National Assessment of Coastal Change Hazards project derives features of beach morphology from lidar elevation data for the purpose of understanding and predicting storm impacts to our nation\'s coastlines. This dataset defines mean beach slopes along the United States Southeast Atlantic Ocean from Salvo to Duck, North Carolina for data collected at various times between 1996 and...
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center
No results found.
Filter Total Items: 46

Toward a national coastal hazard forecast of total water levels Toward a national coastal hazard forecast of total water levels

Storm surge and large waves combine to erode beaches, cause marsh and coral decay, and inundate low-elevation areas, resulting in hazards to coastal communities and loss of natural resources. The USGS, in collaboration with NOAA, is developing a real-time system to provide ∼ 6-day forecasts of total water levels (TWLs) combining tides, storm surge, and wave runup. TWL is compared with...
Authors
Alfredo Aretxabaleta, Kara S. Doran, Joseph W. Long, Li H. Erikson
By
Pacific Coastal and Marine Science Center, St. Petersburg Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center

Surrogate model development for coastal dune erosion under storm conditions Surrogate model development for coastal dune erosion under storm conditions

Early coastal dune erosion predictions are essential to avoid potential flood consequences but most dune erosion numerical models are computationally expensive, hence their application in Early Warning Systems is limited. Here, based on a combination of optimally sampled synthetic sea storms with a calibrated and validated XBeach model, we develop a surrogate model capable of producing...
Authors
Victor Malagon-Santos, Thomas Wahl, Joseph W Long, Davina Passeri, Nathaniel G. Plant
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

Assessing the impact of open-ocean and back-barrier shoreline change on Dauphin Island, Alabama, at multiple time scales over the last 75 years Assessing the impact of open-ocean and back-barrier shoreline change on Dauphin Island, Alabama, at multiple time scales over the last 75 years

Dauphin Island and Little Dauphin Island, collectively, make up a geomorphically complex barrier island system located along Alabama’s southern coast, separating Mississippi Sound from the Gulf of Mexico and Mobile Bay. The barrier island system provides numerous economical (tourism, fisheries) and natural (habitat for migratory birds, natural protection of inland and coastal areas from...
Authors
Christopher G. Smith, Joseph W. Long, Rachel E. Henderson, Paul R. Nelson
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center, Gulf of America

Hydrodynamics and sediment mobility processes over a degraded senile coral reef Hydrodynamics and sediment mobility processes over a degraded senile coral reef

Coral reefs can influence hydrodynamics and morphodynamics by dissipating and refracting incident wave energy, modifying circulation patterns, and altering sediment transport pathways. In this study, the sediment and hydrodynamic response of a senile (dead) barrier reef (Crocker Reef, located in the upper portion of the Florida Reef Tract) to storms and quiescent conditions was evaluated...
Authors
Legna M. Torres-Garcia, P. Soupy Dalyander, Joseph W. Long, David G. Zawada, Kimberly K. Yates, Christopher Moore, Maitane Olabarrieta
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

Effects of proposed navigation channel improvements on sediment transport in Mobile Harbor, Alabama Effects of proposed navigation channel improvements on sediment transport in Mobile Harbor, Alabama

A Delft3D model was developed to evaluate the potential effects of proposed navigation channel deepening and widening in Mobile Harbor, Alabama. The model performance was assessed through comparisons of modeled and observed data of water levels, velocities, and bed level changes; the model captured hydrodynamic and sediment transport patterns in the study area with skill. The validated...
Authors
Davina Passeri, Joseph W. Long, Robert L. Jenkins, David M. Thompson
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

Dynamic modeling of barrier island response to hurricane storm surge under future sea level rise Dynamic modeling of barrier island response to hurricane storm surge under future sea level rise

Sea level rise (SLR) has the potential to exacerbate the impacts of extreme storm events on the coastal landscape. This study examines the coupled interactions of SLR on storm-driven hydrodynamics and barrier island morphology. A numerical model is used to simulate the hydrodynamic and morphodynamic impacts of two Gulf of Mexico hurricanes under present-day and future sea levels. SLR...
Authors
Davina Passeri, Matthew V. Bilskie, Nathaniel G. Plant, Joseph W. Long, Scott C. Hagen
By
Coastal and Marine Hazards and Resources Program, St. Petersburg Coastal and Marine Science Center

Non-USGS Publications**

Long, J. W., and H. T. Özkan-Haller, 2009, Low-frequency characteristics of wave group–forced vortices, J. Geophys. Res., 114, C08004, doi:10.1029/2008JC004894.
Scott, C.P., Cox, D.T., Maddux, T.B., and Long, J.W., 2005, Large-scale laboratory observations of turbulence on a fixed barred beach: Measurement Science and Technology, v. 16, p. 1903, doi: 10.1088/0957-0233/16/10/004.
Long, J. W., and H. T. Özkan-Haller, 2005, Offshore controls on nearshore rip currents, J. Geophys. Res., 110, C12007, doi:10.1029/2005JC003018.

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

Was this page helpful?