![Plum Island Estuary, MA, UAS imagery. Yellow dots: Marsh scarp from MEED, red line: Unvegetated/vegetated line from MEIP, green line: Digitized edge of vegetation. The challenge in determining the location of shoreline with the heads-up digitization can be seen in the lower half of the image where the operator selected a somewhat subjective marsh shoreline, MEED method identified the maximum slope, and MEIP method identified a location somewhere between the two.](https://dronebelow.com/wp-content/uploads/2019/08/remotesensing-11-01795-g009.jpg)
Using Drones to Monitor Salt Marsh Shorelines
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