- 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
- Database(s)
- Experimentalists
- 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
Definition: incidence and emergence angles are positive with origin at nadir, and vary in same direction. Azimuth origin (increasing clockwise) is for i = e (opposition geometry).
- 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 09:46:19 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)