| Lidar_Shorelines_1998_2014 |
Airborne Topographic Mapper 3 (ATM3) |
Polyline shapefiles of Mean High Water (MHW) shorelines extracted from lidar elevation data from 1998–2014 |
Rachel E Henderson |
| Aerial_Shorelines_1940_2015 |
Airborne Topographic Mapper 3 (ATM3) |
Polyline shapefiles of Wet Dry Line (WDL) shoreline delineated from historical aerial imagery from 1940–2015 |
Rachel E Henderson |
| Transects_OpenOcean |
Airborne Topographic Mapper 3 (ATM3) |
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) |
Rachel E Henderson |
| Transects_BackBarrier |
Airborne Topographic Mapper 3 (ATM3) |
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) |
Rachel E Henderson |
| Baseline_OpenOcean |
Airborne Topographic Mapper 3 (ATM3) |
Open-ocean offshore baseline for generating shore-normal transects in DSAS |
Rachel E Henderson |
| Baseline_BackBarrier |
Airborne Topographic Mapper 3 (ATM3) |
Back-barrier offshore baseline for generating shore-normal transects in DSAS |
Rachel E Henderson |
| baseline |
Airborne Topographic Mapper 3 (ATM3) |
A line shapefile parallel to, and seaward of, the Breton Island 1869-2014 shorelines. The baseline serves as a starting point for the Digital Shoreline Analysis System (DSAS) to cast transects. |
Joseph F Terrano |
| shorelines |
Airborne Topographic Mapper 3 (ATM3) |
Line shapefiles of mean high water shorelines derived from NOAA T-Sheets, aerial imagery, and Lidar, for Breton Island, LA, dating from 1869 to 2014. There are 14 shapefiles, one for each available date. |
Joseph F Terrano |
| transects |
Airborne Topographic Mapper 3 (ATM3) |
Line shapefiles of transects generated from the DSAS rate of change program. Transects were generated for the analysis time periods: long-term (1869–2014), long-term historic (1869–1950), post Mississippi River-Gulf Outlet (1950–2014), pre/post Hurricane Katrina (2004–2005), and recent (2005–2014). Rate of change statistics from each analysis are joined to the corresponding transects. There are 5 shapefiles, one for time period. |
Joseph F Terrano |
| Lidar_Footprints_Merged |
Airborne Topographic Mapper 3 (ATM3) |
Merged footprint of all lidar data published by the USGS SPCMSC since 2001 |
Breanna N Williams |
| Lidar_Footprints_Individual |
Airborne Topographic Mapper 3 (ATM3) |
Individual footprints of lidar data published by the USGS SPCMSC since 2001 |
Breanna N Williams |
