1

I need to sample 7 raster layers all 30 m resolution (as some of the remotely sensed products I'm using are Landsat).

I have all of my layers ready to go, but I am not sure how I can conduct a stratified random sample. The forest I'm interested in has varying forest ages (primarily old) with fewer amounts of younger forests that as shapefiles look like hundreds of small polygons.

Additionally, I have 3 types of geology for the region. If I generate random points using the Random Points tool, I've noticed that I end up with lots of points and may be sampling a pixel more than once, which seems incorrect.

Is there a way for me to sample my raster files. Shouldn't my points be the same size as my pixels? These data will be put into a model I'm building, so having representative samples for these different classes is important.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.