Fig. 4: The effect (ΔVI%) of LAD dynamics on selected vegetation indices within the vegetation season. | Communications Earth & Environment

Fig. 4: The effect (ΔVI%) of LAD dynamics on selected vegetation indices within the vegetation season.

From: Temporal dynamics in vertical leaf angles can confound vegetation indices widely used in Earth observations

Fig. 4

ΔVI% was calculated as the relative difference between vegetation index values derived from simulated reflectance data with and without integrating actual vertical leaf angle dynamics. For visualization, LADs were converted to average leaf angles. The VIs in the top row (NDVI, EVI, SAVI, kNDVI) are typically used for assessing the greenness of vegetation canopies, NIRv is used as proxy for the canopy structure, MCTI and MCARI for leaf chlorphyll content, while NDWI is a common proxy for leaf water content.

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