Global AVHRR-Derived Land Climatologies

Climatological information for 60 months (April 1985 through December 1987 and January 1989 through March 1991) derived from NOAA Advanced Very High Resolution Radiometer (AVHRR) sensor is available in a set of two CD-ROMs. Disc 1 contains: (1) Monthly mean values of calibrated Normalized Difference Vegetation Index (NDVI) from AVHRR derived as (Channel2Reflectance-Channel1Reflectance)/(Channel2Reflectance+Channel1Reflectance); Precipitable Water Index (PWI) from AVHRR derived as (Channel4Temperature-Channel5Temperature); Reflectances from AVHRR Channels 1 & 2; Temperatures from AVHRR Channels 4 & 5; Sensor Scan Angle; and Solar Zenith Angle (above the horizon); (2) Standard deviations of these parameters; (3) Quality description flags show factors which may affect reliability of the data as a function of location and time; and (4) Ancillary environmental data (such as soils, vegetation, ecosystems, topography and climate). Disc 2 of this set contains selected data from Disc 1, registered to NGDC Global Change Data Base. It also contains many ancillary data sets from the Global Change Data Base, including soils, topography, vegetation, ecosystems, climatic and other data.