Experiment
Title
Near-IR bidirectional reflection spectra (i=0-70°/e=0-70°/az=180°) of Volcanic tuff (50-100 µm grains) at 263K, Patm
DOI
10.26302/SSHADE/EXPERIMENT_BS_20191230_001
Data reference
Pommerol, Antoine; Schmitt, Bernard (2007): Near-IR bidirectional reflection spectra (i=0-70°/e=0-70°/az=180°) of Volcanic tuff (50-100 µm grains) at 263K, Patm. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_BS_20191230_001
Publications
Type(s)
laboratory measurement
Description
NIR bidirectional reflection spectra (i=0-70°/e=0-70°/az=180°) of Volcanic tuff (2µm grains) at 263K and ambient pressure
Number of spectra
1
Variable type(s)
  • illumination-observation geometry
Comments
series of spectra with varying illumination (0-70°) and emergence angles (0-70°) at azimut = 180°
Instrument
SHINE Spectro-Gonio bidirectional reflection Vis-NIR
Sample holder
Black anodized aluminum plate with 3 mm deep rectangular hole (30x70 mm)
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
Vis, NIR
Valid spectral range(s)
Min - Max (${\mu}m$) Sampling (${\mu}m$) Resolution (${\mu}m$) Position accuracy (${\mu}m$) Absorption edge
#1 0.5 - 1.0 0.02 0.012 0.001
#2 1.0 - 2.0 0.02 0.024 0.001
#3 2.0 - 4.18 0.02 0.048 0.002
Filters
Type Center/Edge (${\mu}m$) Width (${\mu}m$) Place
#1 long-pass filters of the spectro-gonio radiometer
Observation geometry
bidirectional
Observation mode
two variable angles
Resolution illumination
0.1°
Resolution observation
4.1°
Illumination
Observation
Comments
partial polarization variable with wavelength (from monochromator gratings)
Observation mode
single spot
Image size
20.0 x 20.0 $mm$
Comments
The observation spot size is for nadir geometry. Its elliptic size varies with ermegence angles with extent x as $20/cos(\theta _e)$ mm
Date begin - end
2007-01-01 - 2007-01-01

Versions

Release date
2019-12-30 09:46:19 UTC+0000
Version (Date)
#1 (2019-12-30 09:21:56 UTC+0000, Updated: 2019-12-30 14:52:59 UTC+0000)
Sponsors
  • Programme National de Planétologie (PNP)
  • Centre National d'Etudes Spatiales (CNES) (OMEGA/Mars Express)