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Land Surface Parameters

LDAS Vegetation Greenness Fraction Illustrations and Data Sets

This page contains monthly vegetation greenness fraction data files for the LDAS domain. The data has been re-gridded from the global data sets from the NCEP Eta fixed data sets.The twelve monthly greenness fraction fields are assumed to be valid at the 15th of each month. The values are in percentages, ranging from 1 to 99 over land, and are 0 over water. All information on this page has been provided by Qingyun Duan of the NOAA Office of Hydrology, and all inquires concerning the data should be directed toward him.

LDAS Vegetation Greenness Fraction Illustrations

January greenness fractions over the 1/8th degree NLDAS domain. Values of 0-10% occur over the northern 1/3rd of the domain. Values of 20-50% occur over southeastern regions, and values of 40-80% occur over western areas. January Greenness Fraction July greenness fractions over the 1/8th degree NLDAS domain. Values of 60-100% occur over the eastern half and extreme western portions of the domain. Values of 0-50% occur over the remainder of the domain. July Greenness Fraction
February greenness fractions over the 1/8th degree NLDAS domain. Values of 0-10% occur over the northern 1/3rd of the domain. Values of 20-50% occur over southeastern regions, and values of 40-80% occur over western areas. February Greenness Fraction August greenness fractions over the 1/8th degree NLDAS domain. Values of 60-100% occur over the eastern half, extreme western and extreme southwestern portions of the domain. Values of 0-50% occur over the remainder of the domain. August Greenness Fraction
March greenness fractions over the 1/8th degree NLDAS domain. Values of 0-20% occur over the northern 1/3rd of the domain. Values of 30-70% occur over southeastern regions, and values of 40-90% occur over western areas. March Greenness Fraction September greenness fractions over the 1/8th degree NLDAS domain. Values of 60-100% occur over the eastern half, extreme western and extreme southwestern portions of the domain. Values of 0-50% occur over the remainder of the domain. September Greenness Fraction
April greenness fractions over the 1/8th degree NLDAS domain. Values of 40-90% occur over the southeastern 1/3 and extreme western portions of the domain. Values of 0-40% occur over the remainder of the domain. April Greenness Fraction October greenness fractions over the 1/8th degree NLDAS domain. Values of 40-90% occur over the eastern half, extreme western and extreme southwestern portions of the domain. Values of 0-40% occur over the remainder of the domain. October Greenness Fraction
May greenness fractions over the 1/8th degree NLDAS domain. Values of 60-100% occur over the southeastern 1/3 and extreme western portions of the domain. Values of 0-60% occur over the remainder of the domain. May Greenness Fraction November greenness fractions over the 1/8th degree NLDAS domain. Values of 40-70% occur over the southeastern 1/3rd, extreme western and extreme southwestern portions of the domain. Values of 0-40% occur over the remainder of the domain. November Greenness Fraction
June greenness fractions over the 1/8th degree NLDAS domain. Values of 60-100% occur over the eastern 1/2 and extreme western portions of the domain. Values of 0-60% occur over the remainder of the domain. June Greenness Fraction December greenness fractions over the 1/8th degree NLDAS domain. Values of 30-70% occur over the southeastern third, extreme western and extreme southwestern portions of the domain. Values of 0-30% occur over the remainder of the domain. December Greenness Fraction



LDAS Vegetation Greenness Fraction ASCII Data Sets

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The following 12 greenness fraction files contain monthly greenness fraction values over the entire LDAS domain. The files consists of 1 greenness fraction value per 1/8th degree grid box, with gridpoint (1,1) located at the upper left of the LDAS grid. The files can be read with the following statement: 
      read(10,40) ((ifrac(i,j),i=1,464),j=1,224)
40    format(464i3))
January Greenness Fraction Values (GFRAC_01.MOD) July Greenness Fraction Values (GFRAC_07.MOD)
February Greenness Fraction Values (GFRAC_02.MOD) August Greenness Fraction Values (GFRAC_08.MOD)
March Greenness Fraction Values (GFRAC_03.MOD) September Greenness Fraction Values (GFRAC_09.MOD)
April Greenness Fraction Values (GFRAC_04.MOD) October Greenness Fraction Values (GFRAC_10.MOD)
May Greenness Fraction Values (GFRAC_05.MOD) November Greenness Fraction Values (GFRAC_11.MOD)
June Greenness Fraction Values (GFRAC_06.MOD) December Greenness Fraction Values (GFRAC_12.MOD)

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Developed and Maintained at NASA/GSFC		Brian Cosgrove: Brian.Cosgrove@gsfc.nasa.gov
Matthew Rodell: Matthew.Rodell@gsfc.nasa.gov
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