This data release contains tidally corrected shoreline positions for three sites of western Long Island, NY (Rockaway Peninsula, Long Beach, and Jones Beach Island). Both CSV files of tidally corrected shorelines and GeoJSON files of the region of interests (ROIs), transects, and reference shorelines are provided within respective zip files. Both file types are derived from CoastSeg v1.1.35 (Fitzpatrick and others, 2024). CoastSeg collects satellite images from Google Earth Engine to create shoreline data along with user supplied inputs based on the CoastSat methodology (Vos and others, 2019). Images from Landsat 5, 7, 8, 9 and Sentinel 2 are collected from CoastSeg. The specific settings supplied to CoastSeg are tied to the region of interests (ROIs) within the GeoJSON files. Data have been tidally corrected based on beach foreshore slopes (Farris and Webber, 2024). The data are intended to be used to find sediment waves, erosion and accretion patterns, as well as evidence of storm damage and beach nourishments. 

References

Fitzpatrick, S., Buscombe, D., Warrick, J.A., Lundine, M.A., Vos, K., 2024 CoastSeg: an accessible and extendable hub for satellite-derived shoreline (SDS) detection and mapping: Journal of Open Source Software, https://doi.org/10.21105/joss.06683.

Vos K., Splinter, K.D., Harley M.D., Simmons, J.A., Turner, I.L., 2019 CoastSat: A Google Earth Engine-enabled Python toolkit to extract shorelines from publicly available satellite imagery: Environmental Modelling & Software, https://doi.org/10.1016/j.envsoft.2019.104528.

Farris, A.S., and Weber, K.M., 2024, Beach foreshore slope for the East Coast of the United States: U.S. Geological Survey data release, https://doi.org/10.5066/P13FC6SW.