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  2. ISLSCP II FASIR-ADJUSTED NDVI BIOPHYSICAL PARAMETER FIELDS, 1982-1998

The Fourier-Adjusted, Sensor and Solar zenith angle corrected, Interpolated, Reconstructed (FASIR) adjusted Normalized Difference Vegetation Index (NDVI) data set and derived biophysical parameter fields were generated to provide a 17-year, satellite record of monthly changes in the photosynthetic activity of terrestrial vegetation. This multiple resolution (1/4, 1/2 and 1 degree in latitude and longitude) biophysical parameter data set contains essential variables for the calculation of photosynthesis, and the energy and water exchange between the Earth's surface (in particular of vegetation) and the lower boundary layer of the atmosphere. The Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) is related to the light absorption and the photosynthetic capacity of vegetation. It also serves as an intermediate variable to calculate vegetation cover fraction (Vcover), total Leaf Area Index (LAI_T), green leaf area index (LAI_G), roughness length (z0), zero plane displacement (d), and snow-free albedo. The biophysical parameters were derived assuming one canopy layer. The production of the FASIR NDVI data set and its associated biophysical parameters was funded by NASA's Land Surface Hydrology program and the Higher Education Funding Council for Wales (HEFCW) as a core component of the International Satellite Land Surface Climatology Project (ISLSCP) Initiative II Data Collection.

Sietse, O.L. 2010. ISLSCP II FASIR-adjusted NDVI Biophysical Parameter Fields, 1982-1998. In Hall, Forrest G., G. Collatz, B. Meeson, S. Los, E. Brown de Colstoun, and D. Landis (eds.). ISLSCP Initiative II Collection. Data set. Available on-line [http://daac.ornl.gov/] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. doi:10.3334/ORNLDAAC/970

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This data set contains 258 data granules
Granule Name Variables Metadata Preview Image
    FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1982 aerodynamic roughness Projection: WGS 84
Spatial Extent: N: 90, S: -90, E: 180, W: -180
Start DateTime: 1982-01
End DateTime: 1982-12
FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1982
 
    FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1983 aerodynamic roughness Projection: WGS 84
Spatial Extent: N: 90, S: -90, E: 180, W: -180
Start DateTime: 1983-01
End DateTime: 1983-12
FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1983
 
    FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1984 aerodynamic roughness Projection: WGS 84
Spatial Extent: N: 90, S: -90, E: 180, W: -180
Start DateTime: 1984-01
End DateTime: 1984-12
FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1984
 
    FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1985 aerodynamic roughness Projection: WGS 84
Spatial Extent: N: 90, S: -90, E: 180, W: -180
Start DateTime: 1985-01
End DateTime: 1985-12
FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1985
 
    FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1986 aerodynamic roughness Projection: WGS 84
Spatial Extent: N: 90, S: -90, E: 180, W: -180
Start DateTime: 1986-01
End DateTime: 1986-12
FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1986
 
    FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1987 aerodynamic roughness Projection: WGS 84
Spatial Extent: N: 90, S: -90, E: 180, W: -180
Start DateTime: 1987-01
End DateTime: 1987-12
FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1987
 
    FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1988 aerodynamic roughness Projection: WGS 84
Spatial Extent: N: 90, S: -90, E: 180, W: -180
Start DateTime: 1988-01
End DateTime: 1988-12
FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1988
 
    FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1989 aerodynamic roughness Projection: WGS 84
Spatial Extent: N: 90, S: -90, E: 180, W: -180
Start DateTime: 1989-01
End DateTime: 1989-12
FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1989
 
    FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1990 aerodynamic roughness Projection: WGS 84
Spatial Extent: N: 90, S: -90, E: 180, W: -180
Start DateTime: 1990-01
End DateTime: 1990-12
FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1990
 
    FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1991 aerodynamic roughness Projection: WGS 84
Spatial Extent: N: 90, S: -90, E: 180, W: -180
Start DateTime: 1991-01
End DateTime: 1991-12
FASIR-adjusted NDVI Aerodynamic roughness length (Half-degree; All Months) 1991