In the frame of AMMA (African Monsoon Multi-disciplinary Analysis) project, Postel customise existing LAI products in order to standardize them in terms of projection, spatial resolution, and area coverage, and to make them easier to use by modellers community. Consequently, customisation consists in resampling products on pre-defined grids, and extracting areas of interest, which are :
  West Africa : from 25°W to 25°E, from 5°S to 20°N
  Atlantic : from 60°W to 40°E, from 35°S to 35°N

Postel a generated customized LAI products, which can be downloaded with their readme files. These products are :
  monthly C4.1 MODIS LAI (2000-2006) (MOD15_BU_1KM) provided by Boston University, resampled on a regular grid at 0.01° resolution over "West Africa" area (example below)
  monthly AVHRR LAI (1981-2001) from PATHFINDER AVHRR Land (PAL), provided also by Boston University, resampled on a regular grid at 0.25° resolution over "Atlantic" area.
  10-day POLDER-1 (1996-1997) and POLDER-2 (2003) LAI, resampled on a regular grid at 0.05° resolution over "West Africa" area.

These products are also available through the AMMASAT database in NetCDF format.