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Fire Ecology
Fig. 3 | Fire Ecology

Fig. 3

From: Examining post-fire vegetation recovery with Landsat time series analysis in three western North American forest types

Fig. 3

Conceptual example of LandTrendr fitting normalized burn ratio (NBR) values to spectral-temporal segments for a pixel burned at high severity in the Cooney Ridge Fire in 2003. Original NBR values for a pixel time series are displayed as solid gray circles, and the corresponding fitted result from LandTrendr are open black circles. LandTrendr adjusts the original time series to fit to line segments between breakpoints in spectral trends. It eliminates noise and places each value in the context of spectral trajectories that combine to reveal the dominant, underlying spectral history of a pixel. Percent NBR recovery in 2016 was defined as distance 2 divided by distance 1 multiplied by 100

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