Shoreline Analysis of Three Savannah River Landmasses Containing Historically Significant Civil War Ruins |
Analysis by: Colby T. Peffer
|
|
This analysis focused on using AMBUR (Analyzing Moving Boundaries Using R) (Jackson, Chester, 2012) in order to identify erosional/accretional areas of the shorelines of the three river landmasses. Aerial photography from 1933 to 2014 was used to digitize shorelines, which were then input into AMBUR. AMBUR output used for mapping included net movement of the shoreline and endpoint rates (EPRs). The following image is a representation of transects created by AMBUR and used for capturing points along each transect. The inner and outer baselines are buffered (by 30 m for Northern and Southern transects; 50 m for the Eastern transects) in order to encompass all transects. 
Cockspur Island,Savannah River, Georgia. AMBUR created transects using 30 m (north/south shorelines) and 50m (eastern shoreline) buffers of transects. Northern transects shown in red, southern transects shown in green, eastern transects shown in blue. Outer baseline is bolded black, inner baseline is represented by a dashed dark grey line. AMBUR created transects are parallel to baselines in grey. |
