Whiskey Island Caillou Lake Headlands restoration area 2016–2019 shorelines, Louisiana Barrier Island Comprehensive Monitoring Program
Dates
Publication Date
2022-11-04
Start Date
2016-10-31
End Date
2019-08-30
Citation
Jones, W.R., Thurman, H.R., Enwright, N.M., Dugas, J.L., Lee, D.M., and Cheney, W.C., 2022, Whiskey Island Caillou Lake Headlands restoration area 2016–2019 shorelines, Louisiana Barrier Island Comprehensive Monitoring Program: U.S. Geological Survey data release, http://doi.org/10.5066/P945MUC0.
Summary
This data package includes a high-water shoreline position map and a structures map for each year from 2016–2019 for the Natural Resource Damage Assessment (NRDA) Caillou Lake Headlands project area (TE-0100), also known as Whiskey Island. The project created 170 acres of marsh habitat and 917 acres of dune and beach habitat on Whiskey Island in Terrebonne Parish using material dredged from Ship Shoal. For more information on this restoration project, see the project page on Louisiana Coastal Protection and Restoration Authority’s (CPRA) Coastal Information Management System (http://cims.coastal.la.gov/outreach/projects/ProjectView?projID=TE-0100). Together with previous shoreline products developed for CPRA's Barrier Island Comprehensive [...]
Summary
This data package includes a high-water shoreline position map and a structures map for each year from 2016–2019 for the Natural Resource Damage Assessment (NRDA) Caillou Lake Headlands project area (TE-0100), also known as Whiskey Island. The project created 170 acres of marsh habitat and 917 acres of dune and beach habitat on Whiskey Island in Terrebonne Parish using material dredged from Ship Shoal. For more information on this restoration project, see the project page on Louisiana Coastal Protection and Restoration Authority’s (CPRA) Coastal Information Management System (http://cims.coastal.la.gov/outreach/projects/ProjectView?projID=TE-0100). Together with previous shoreline products developed for CPRA's Barrier Island Comprehensive Monitoring (BICM) Program Phase 2, this suite of Whiskey Island shoreline position maps spans the time period before, during, and after the restoration project was conducted. The shorelines were delineated primarily using linework from existing habitat classifications of Whiskey Island. Please see the Processing Steps sections of the individual metadata files for information on methodology for map development. The BICM Program, for which these maps were developed, uses both historical data and contemporary data collections to assess and monitor changes to barrier islands, and develops data products, including shoreline position maps. For more information about the BICM Program, see Kindinger and others (2013).
Click on title to download individual files attached to this item.
Whiskey_Island_Shorelines.xml Original FGDC Metadata
View
15.51 KB
application/fgdc+xml
Whiskey_Island_Shorelines.zip
985.21 KB
application/zip
Purpose
Barrier islands provide ecological services that are integral to economic and environmental interests, including storm protection and erosion control for the mainland, habitat for fish and wildlife, salinity regulation in estuaries, carbon sequestration in marshes, recreation, and tourism (Barbier and others, 2011). Therefore, it is imperative that they are managed in a way that ensures resiliency and the continued provision of ecosystem goods and services over time. Barrier islands are very dynamic environments due to their position at the land-sea interface, and are shaped by storms, wave energy, tides, currents, and relative sea-level rise. These forces result in ongoing shoreline erosion, a challenge faced by coastal Louisiana, including Whiskey Island. From the 1880s to 2015, shorelines within the Whiskey Island BICM reach receded at an average rate of 52.2 feet per year (Byrnes and others, 2018). The dynamic nature of barrier islands makes evaluating the impacts from restoration and extreme events an important part of monitoring and adaptive management of these resources. The shoreline products developed through this effort can be used to track shoreline position before and after restoration activity, and used in conjunction with other historical shoreline position maps of Whiskey Island, can also provide a powerful tool for tracking changes to barrier island shorelines over time. Please consult the accompanying readME.txt file for information on the contents of this dataset.
