Wetland Survey Using UAS

Generally wetland flags are in well vegetated areas and are not readily visible from the air. With the time to place and recover any active markers you can do it conventionally.

Paul in PA

I would be happy if the wetland biologists would make their flags a bit easier to find, I have followed some that seemed to crawl on their belly and put the flags at about 2' off the ground so they do not have to brush anything. A 10' pvc pipe marker, Kent style, with a flag would be pretty nifty.

I actually attended a class to learn how to flag wetlands the instructor told us he liked to hang the flags in hard to see areas to mess with the field crews. Imagine his surprise during a class break when 3 of us were field guys

I use a method when wetland buffers are not critical. Take the record high water in the wetland (my town did that between '66 and '80), add 2'.
95% of the flags are inside this contour.
The 5% above are usually on slopes.

Not a bad surfacing problem to resolve. The drone can get the surface and the biologist can verify elevations at a couple of points.

Better than having 10 biologists set 10 completely different lines.

spledeus, post: 339997, member: 3579 wrote: I use a method when wetland buffers are not critical. Take the record high water in the wetland (my town did that between '66 and '80), add 2'.
95% of the flags are inside this contour.
The 5% above are usually on slopes.

Not a bad surfacing problem to resolve. The drone can get the surface and the biologist can verify elevations at a couple of points.

Better than having 10 biologists set 10 completely different lines.

I have yet to see a biologist actually test the PH of the soil to see if the delineated area actually meets the criteria of wetlands, so your method would probably work for most.

Seems like it is good work that I would rather not give to a drone.