Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.29% adsorbed-interlayer H2O at -30°C, P(H2O) = 0 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.43% adsorbed-interlayer H2O at -30°C, P(H2O) = 5.1 10-4 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.52% adsorbed-interlayer H2O at -30°C, P(H2O) = 2.9 10-3 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.58% adsorbed-interlayer H2O at -30°C, P(H2O) = 4.2 10-3 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.63% adsorbed-interlayer H2O at -30°C, P(H2O) = 1.48 10-2 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.67% adsorbed-interlayer H2O at -30°C, P(H2O) = 2.45 10-2 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.70% adsorbed-interlayer H2O at -30°C, P(H2O) = 4.04 10-2 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.72% adsorbed-interlayer H2O at -30°C, P(H2O) = 5.96 10-2 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.74% adsorbed-interlayer H2O at -30°C, P(H2O) = 9.2 10-2 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.77% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.116 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.79% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.105 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.79% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.135 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.82% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.165 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.86% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.215 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.90% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.151 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.96% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.252 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.98% adsorbed-interlayer H2O at -30°C, P(H2O) = 0.166 mbar Spectrum NIR bidirectional reflection spectrum (i=0°/e=30°) of volcanic tuff with 0.99% adsorbed-interlayer H2O at -30°C, P(H2O) = 8.6 10-2 mbar