Vis-NIR reflectance spectrum of H2O ice grains (mixture of grains 52 wt% ~70 µm spherical and 48 wt% ~1060 µm irregular) at 120 K
- Title
- Vis-NIR reflectance spectrum of H2O ice grains (mixture of grains 52 wt% ~70 µm spherical and 48 wt% ~1060 µm irregular) at 120 K
- DOI
- 10.26302/SSHADE/EXPERIMENT_OP_20201223_001
- Data reference
- Stephan, Katrin; Ciarniello, Mauro; Poch, Olivier; Haack, David; Raponi, Andrea (2019): Vis-NIR reflectance spectra of H2O ice with varying grain sizes (70-1060µm), shapes (spherical or irregular) and three mixtures, from 70 to 220 K. SSHADE/CSS (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_OP_20201223_001
- Publications
- Database
- Experimentalists
- Experiment type
- laboratory measurement
- Type
- reflectance factor
- Instrument
- SHINE Spectro-Gonio bidirectional reflection Vis-NIR
- Sample holder
- Aluminum sample holder, closed by a sapphire window and cooled by a He cryostat in a vacuum chamber (Carbo-NIR)
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- Vis, NIR
- Valid spectral range(s)
-
Min - Max ($nm$) Sampling ($nm$) Resolution ($nm$) Position accuracy ($nm$) Absorption edge #1 400.0 - 650.0 50.0 3.0 #2 700.0 - 1000.0 50.0 6.0 #3 1010.0 - 1400.0 10.0 6.0 #4 1400.0 - 2990.0 10.0 13.0 #5 3000.0 - 3600.0 10.0 26.0 #6 3650.0 - 4200.0 50.0 26.0 - Filters
-
Type Center/Edge ($nm$) Width ($nm$) Place #1 long-pass filters of the spectro-gonio radiometer - Scan number
- 1
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
- fixed angles
- Incidence angle
- 0.0°
- Emergence angle
- 30.0°
- Azimuth angle
- 0.0°
- Phase angle
- 30.0°
- Resolution observation
- 4.1°
- Comments
- The spectro-radio-goniometer SHINE was used in normal mode.
Illumination
Observation
- Comments
- partial polarization variable with wavelength (from monochromator grating)
- Observation mode
- single spot
- Resolutions
- 200.0 $mm$
- Experiment
- Vis-NIR reflectance spectra of H2O ice with varying grain sizes (70-1060µm), shapes (spherical or irregular) and three mixtures, from 70 to 220 K
- Date begin
- 2019-03-27
- Release date
- 2021-11-26 18:12:38 UTC+0000
- Version (Date)
- #1 (2021-11-26 18:12:38 UTC+0000, Updated: 2021-11-26 18:12:38 UTC+0000)
- History
-
Date Mode Version Status Comments 2021-11-26 14:11:03 UTC+0000 first import #1 valid version
- Analysis
- raw bidirectional reflectance spectrum calibrated: 1) with "Spectralon 99%" measured under same geometry using its absolute BRDF (0.40-1.10µm) and 2) with "Infragold" using its relative spectral reflectance (1.10-4.20 µm)
- Quality flag
- 4
- Validator(s)
