Vis-NIR BRDF spectra (i=70°, e=0-20°, a=0-180°) of 12.5mm thick slab ice on snow
- Title
- Vis-NIR BRDF spectra (i=70°, e=0-20°, a=0-180°) of 12.5mm thick slab ice on snow
- DOI
- 10.26302/SSHADE/EXPERIMENT_BS_20160831_000
- Data reference
- Brissaud, Olivier; Schmitt, Bernard; Douté, Sylvain (2009): Vis-NIR spectral bidirectional reflection distribution fonction (SBRDF) of sintered snow (Arselle) and slab ice (3 thicknesses: 1.42, 7.45 and 12.5 mm) on snow at -10°C. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_BS_20160831_000
- Publications
- Database
- Experimentalists
- Experiment type
- laboratory measurement
- Type
- reflectance factor
- Comments
- strong effect (~0.065) of incident polarization in 0.60-0.66µm range
- Instrument
- SHINE Spectro-Gonio bidirectional reflection Vis-NIR
- Sample holder
- stainless-steel cylinder in cold chamber
- 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 0.6 - 0.66 0.02 0.0047 0.001 #2 0.68 - 1.38 0.02 0.0095 0.002 #3 1.4 - 1.98 0.02 0.019 0.004 - Scan number
- 10
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
- tri-angular function
- Resolution illumination
- 0.1°
- Resolution observation
- 4.1°
Illumination
Observation
- Comments
- partial polarization variable with wavelength (from gratings)
- Observation mode
- single spot
- Resolutions
- 20.0 ${\pm}$ 0.1 $mm$
- Comments
- spatial resolution over x vary as 1/cos(obs angle)
- Number of geometries
- 13
| Incidence | Emergence | Azimuth | Phase |
|---|---|---|---|
| 70.0° | 10.0° | 0.0° | 60.0° |
| 70.0° | 20.0° | 0.0° | 50.0° |
| 70.0° | 10.0° | 45.0° | 63.11° |
| 70.0° | 20.0° | 45.0° | 56.73° |
| 70.0° | 10.0° | 90.0° | 70.32° |
| 70.0° | 20.0° | 90.0° | 71.25° |
| 70.0° | 10.0° | 140.0° | 77.77° |
| 70.0° | 20.0° | 140.0° | 85.69° |
| 70.0° | 10.0° | 160.0° | 79.43° |
| 70.0° | 20.0° | 160.0° | 88.89° |
| 70.0° | 0.0° | 180.0° | 70.0° |
| 70.0° | 10.0° | 180.0° | 80.0° |
| 70.0° | 20.0° | 180.0° | 90.0° |
- Experiment
- Vis-NIR spectral bidirectional reflection distribution fonction (SBRDF) of sintered snow (Arselle) and slab ice (3 thicknesses: 1.42, 7.45 and 12.5 mm) on snow at -10°C
- Date begin
- 2009-03-05
- Date end
- 2009-03-06
- Release date
- 2020-03-17 11:55:30 UTC+0000
- Version (Date)
- #1 (2020-03-17 11:55:30 UTC+0000, Updated: 2020-03-18 14:21:56 UTC+0000)
- History
-
Date Mode Version Status Comments 2020-03-17 07:30:22 UTC+0000 first import #1 valid version
- Analysis
- raw bidirectional reflectance spectrum calibrated with Spectralon 99% under same geometry and with its absolute BRDF
- Quality flag
- 4
- Validator(s)