• Anomalies for Leaf Area Index (LAI)

    Evapotranspiration and carbon fluxes between the biosphere and the atmosphere are routinely expressed in terms of the Leaf Area Index (LAI) of the canopy. Monitoring the change of LAI is essential for assessing the evolution of the vegetation over Africa. LAI anomalies relative to the average values between 2003 and 2010 show apparent variations of vegetation cover over Africa. Increase of temperature and precipitation deficits are the main drivers for the negative anomalies. Human or animals may also locally impact the state of leaves. This record shows the anomalies of LAI every 10-days reflecting its large variations over Africa.

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