This page describes some vegetation specfications used in GLDAS, specifically Leaf Area Index (LAI) and Canopy greenness (fg). GLDAS has the capability to use both literature based and satellite derived products of LAI and fg. The table below illustrates a comparison of these two parameters for these two approaches. The figures are monthly data. The satellite data figures are based on a 20 year climatology from 1982 - 2001.
|Month of Year||Default Leaf Area Index||Satellite Derived Leaf Area Index||Default Canopy Greenness||Satellite Derived Canopy Greenness|