I am trying to detect timing and pattern of change in a particular salt marsh (low marsh sitting close to a high marsh). Basically, I'm interested in detecting changes in the leading edge for different years. Just wondering if anyone knows how to map salt marsh recession using leading edge.
The leading edge is the front line - like the boundary line that fronts another adjoining vegetation/class.
My final product will be a map showing shift/change in area between different years and a graph showing the changes (after calculating size of polygon in e.g. arcgis). The timing of change will let me identify when exactly the change has occurred/is occurring (using a time slice). The pattern will enable me to determine if change in marsh is gradual and if marsh have periods of both recession and extension over time.