Shoreline Change Data

Erosion pin and data showing change in marsh edge position over one year for several locations along the marsh edge. Erosion pins were deployed at locations along the marsh edge with and without oyster reefs. Change in marsh morphology over time was tracked remotely through aerial photograph analysis and in-situ using erosion pins and land surveys. For aerial photograph analysis, photos were chosen based on availability, time intervals and image quality. The images were given spatial context through the georectification tool in ArcGIS Pro 2.6 using landmarks with a x and y coordinate, such as the edge of a building or road intersection, as ground control points. A new feature class was created in ArcGIS Pro 2.6 to trace and digitize shorelines (Figure 2). The vegetation line was used as a shoreline indicator because of its visibility and independence of tide (Taube, 2013).

Data and Resources

ExposedPins.xlsx.xlsx
Excel file containing pre-construction (1994-2020) measurements taken from...
- More information
- Download
ErosionPins.Rmd.rmd
Program R markdown file showing erosion pin data analysis and visualization.
- More information
- Download
GIS Data
Shape files created through aerial photograph analysis showing change in...
- More information
- Go to resource

Additional Info

Field	Value
Last Updated	February 28, 2024, 19:14 (UTC)
Created	August 17, 2022, 15:20 (UTC)
Data Maintainer	Elizabeth Bieri
Email Address	libby.bieri@tnc.org
Metric Category	Ecological