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.

RCoE Action:

Biodiversity & Forest Climate and Disaster Resilience

Related SDGs and targets

Goal 15

Goal 13

Topics

Real Time Climate Change Natural Resources Forests Food and Agriculture

Data provider

EC-JRC

Suggested citation

Pinty B., Andredakis I., Clerici M., Kaminski T., Taberner M., Verstraete M. M., Gobron N., Plummer S., and Widlowski J.-L. Exploiting the MODIS albedos with the Two-stream Inversion Package (JRC-TIP): 1. Effective leaf area index, vegetation, and soil properties. Journal of Geophysical Research – Atmospheres, 2011, 116 (D09105), p. 1-20. DOI: 10.1029/2010JD015372

Related tool or portal

Licence

Creative Commons Attribution 4.0 International (CC BY 4.0)

Date or time period of observation

Last full 10-day period

Frequency of update

10-Days

Geographic coverage

Global

Cautions

This indicator shows variations in the vegetation health and / or cover which may be due to other stress factors than rainfall or soil moisture deficits, such as plant diseases. Therefore this indicator must be used jointly with other indicators giving information on the deficit of rainfall and / or soil moisture, in order to determine if the variation in the vegetation response (LAI) is linked with a drought event or not.

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