Model data 2018-305-MD

Identifier 2018-305-MD
Location Dauphin Island, Alabama
Summary In support of studies and assessments of barrier island evolution in the Gulf of Mexico, rates of shoreline change for Dauphin Island, Alabama, were calculated using two different shoreline proxy datasets with a total temporal span of 75 years. Mean High Water line (MHW) shorelines were generated from 14 lidar datasets from 1998 to 2014, and Wet Dry Line (WDL) shorelines were digitized from ten sets of georeferenced aerial images from 1940 to 2015. Rates of change for the open-ocean (south-facing) and back-barrier (north-facing) coast were calculated for three groups of shorelines: MHW (lidar), WDL (aerial) and MHW and WDL shorelines combined. Calculations were performed using the Digital Shoreline Analysis System (DSAS) version 4.3, an ArcGIS extension developed by the U.S. Geological Survey (Thieler and others, 2009). Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Ergul, Ayhan, 2009, Digital Shoreline Analysis System (DSAS) version 4.0—An ArcGIS extension for calculating shoreline change: U.S. Geological Survey Open-File Report 2008-1278, https://woodshole.er.usgs.gov/project-pages/DSAS/version4/.
Projects
Itinerary
Start (port not specified) 1940-10-27
End (port not specified) 2015-11-12
Bounds
West -88.341683558
East -88.052726
North 30.281611631
South 30.216924258

Personnel

Crew members
Information specialist(s)
Rachel E Henderson
Specialist, Information

Data types and categories

Data category:
Data type: Mathematical (model)

Equipment and datasets

Equipment or measuring device
Simulated data
Mathematical (model)
6
Aerial_Shorelines_1940_2015.zip(27058)
Description Polyline shapefiles of Wet Dry Line (WDL) shoreline delineated from historical aerial imagery from 1940–2015.
Format .shp
Amount 2.9 MB
Digital location \\gs\stpetersburgfl-g\Coastal_Change_Hazards\Archive\Publications\DR_F7T43RB5
Supported? No
Public? Yes
Reviewed? Yes
Process? No
Public URL https://doi.org/10.5066/F7T43RB5
Metadata https://cmgds.marine.usgs.gov/metadata/spcmsc/Aerial_Shorelines_metadata.xml
Contact
Baseline_BackBarrier.zip(27062)
Description Back-barrier offshore baseline for generating shore-normal transects in DSAS.
Format .shp
Amount 66 KB
Digital location \\gs\stpetersburgfl-g\Coastal_Change_Hazards\Archive\Publications\DR_F7T43RB5
Supported? No
Public? Yes
Reviewed? Yes
Process? No
Public URL https://doi.org/10.5066/F7T43RB5
Metadata https://cmgds.marine.usgs.gov/metadata/spcmsc/Baseline_BackBarrier_metadata.xml
Contact
Baseline_OpenOcean.zip(27061)
Description Open-ocean offshore baseline for generating shore-normal transects in DSAS.
Format .shp
Amount 65 KB
Digital location \\gs\stpetersburgfl-g\Coastal_Change_Hazards\Archive\Publications\DR_F7T43RB5
Supported? No
Public? Yes
Reviewed? Yes
Process? No
Public URL https://doi.org/10.5066/F7T43RB5
Metadata https://cmgds.marine.usgs.gov/metadata/spcmsc/Baseline_OpenOcean_metadata.xml
Contact
Lidar_Shorelines_1998_2014.zip(27057)
Description Polyline shapefiles of Mean High Water (MHW) shorelines extracted from lidar elevation data from 1998–2014.
Format .shp
Amount 2.9 MB
Digital location \\gs\stpetersburgfl-g\Coastal_Change_Hazards\Archive\Publications\DR_F7T43RB5
Supported? No
Public? Yes
Reviewed? Yes
Process? No
Public URL https://doi.org/10.5066/F7T43RB5
Metadata https://cmgds.marine.usgs.gov/metadata/spcmsc/Lidar_Shorelines_metadata.xml
Contact
Transects_BackBarrier.zip(27060)
Description Polyline shapefiles of DSAS generated shore normal transects for the back-barrier shoreline of Dauphin Island, with associated rates of change for three shoreline analyses: Lidar shoreline change (1998–2014), Aerial shoreline change (1940–2015), and combined Lidar and Aerial shoreline change (1940–2015).
Format .shp
Amount 376 KB
Digital location \\gs\stpetersburgfl-g\Coastal_Change_Hazards\Archive\Publications\DR_F7T43RB5
Supported? No
Public? Yes
Reviewed? Yes
Process? No
Public URL https://doi.org/10.5066/F7T43RB5
Metadata https://cmgds.marine.usgs.gov/metadata/spcmsc/Transects_BackBarrier_metadata.xml
Contact
Transects_OpenOcean.zip(27059)
Description Polyline shapefiles of DSAS generated shore normal transects for the open-ocean shoreline of Dauphin Island, with associated rates of change for three shoreline analyses: Lidar shoreline change (1998–2014), Aerial shoreline change (1940–2015), and combined Lidar and Aerial shoreline change (1940–2015).
Format .shp
Amount 518 KB
Digital location \\gs\stpetersburgfl-g\Coastal_Change_Hazards\Archive\Publications\DR_F7T43RB5
Supported? No
Public? Yes
Reviewed? Yes
Process? No
Public URL https://doi.org/10.5066/F7T43RB5
Metadata https://cmgds.marine.usgs.gov/metadata/spcmsc/Transects_OpenOcean_metadata.xml
Contact

Description and usage history of this equipment

Publications

Samples collected during this field activity