Fig. 1

Pixel-scale NDVI measured by 3 Landsat sensors (blue: Landsat TM 5; Red: Landsat 7 ETM + ; Green: Landsat 8 OLI) after pre-treatments described in the main text. The area was a pasture and was planted with Eucalyptus in February 2014 (dashed gray line). The black line shows the cubic spline smoothing curve