../data/ASTERV2.0/data/vegetation/jhu.becknic.vegetation.grass.dry.solid.drygras.spectrum.txt
../data/ASTERV2.0/data/vegetation/jhu.becknic.vegetation.grass.green.solid.gras.spectrum.txt
../data/ASTERV2.0/data/vegetation/jhu.becknic.vegetation.trees.conifers.solid.conifer.spectrum.txt
../data/ASTERV2.0/data/vegetation/jhu.becknic.vegetation.trees.deciduous.solid.decidou.spectrum.txt