21 February 2018 15 1K Report

I am trying to remote sensing land cover features (bare soil, water, vegetation, cultivated areas) on a 40 km² watershed, located in the Sahel (semi-arid west africa). I am heavily interested in their spatio-temporal trends and patterns and such, I found Landsat images to be potentially good candidates. Free available Landsat products (C1 and C2 levels) have a resolution of 30 m, i.e the surface being represented in a single pixels is close to 900 m².

I would like to know if the resolution of free Landsat images is accurate enough for my task, given the size of my study area (40 km²) ? How can I account for and estimate classification errors ?

Thanks, always.

Roland.

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