Whenever I see wetlands + people hiking around + satellite measurement I am reminded of Mandelbrot and fractals. It was one of Mandelbrot's classic examples. T

Whenever I see wetlands + people hiking around + satellite measurement I am reminded of Mandelbrot and fractals. It was one of Mandelbrot's classic examples. There's a sort of inverse relationship between distance (O(r^1)) of a coastline and area (O(r^2)) of a coastline, or wetland, where the distance increases as the man walks compared to how the satellite flies (O(r^1.x)) and the area of the wetland decreases (O(r^(2-x))). It is put forward in the HN title that (some) wetlands are missing, but at satellite scale there are probably areas which are deemed wetland which aren't if you actually go and hike the ground. Mandelbrot's thesis is that if you go hike the whole thing to identify all of that missing wetland and do an honest job tossing out what's not wetland you will end up with a net decrease in wetland area compared to satellite scale.