Mm. Valeriano et al., BIDIRECTIONAL REFLECTANCE FACTOR OF 14 SOIL CLASSES FROM BRAZIL, International journal of remote sensing, 16(1), 1995, pp. 113-128
The spectral reflectance of soils is required for effective use of rem
ote sensing products. The absence of studies concerned with spectral r
eflectance of the soils from the tropical region in the 400 to 2500 nm
spectral range is the main motivation of this research. The objective
of this study was to present spectral reflectance data from different
tropical soil types. This spectral characterization was done through
measurements of the hi-directional reflectance factor of III selected
soil samples, grouped in 14 tropical soil classes, taken from 53 sites
(Sao Paulo State, Brazil). The measurements were made with a spectror
adiometer operating in the 400 to 2500 nm region of the electromagneti
c spectrum. Each soil sample is associated to a set of physical and ch
emical analyses data, with part of these published in descriptive repo
rts of soil surveys.