Test full BRDF spectro-photometric data - IPAG
- Title
- Test full BRDF spectro-photometric data - IPAG
- Data reference
- full experimentalist, Bernard; experimentalist, Void (2007): Test experiment BRDF. SSHADE/DB_FULL+DB_VOID (OSUG Data Center). Dataset/Spectral Data.
- Publications
- Comments
- un beau papier !
- Database
- Experimentalists
- Experiment type
- laboratory measurement
- Type
- bidirectional reflectance distribution function
- Intensity unit
- $sr^{-1}$
- Comments
- encore !
- Instrument
- Brucker Vertex 70v NIR-MIR transmission
- Sample holder
- Aluminum plate with 1 mm deep circular hole (3cm) inside P-T controled chamber closed by saphire window and cooled by Peltier elements (SERAC environmental 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 0.45 - 1.2 0.02 0.024 0.001 #2 1.22 - 2.5 0.02 0.048 0.002 - Scan number
- 10
- Comments
- 5 filters
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
- 2.1°
- Resolution observation
- 4.1°
- Comments
- fixed angle
- Observation mode
- single spot
- Comments
- elliptic observation spot
- Number of geometries
- 17
| Incidence | Emergence | Azimuth | Phase |
|---|---|---|---|
| 0.0° | 30.0° | 0.0° | 30.0° |
| 0.0° | 60.0° | 0.0° | 60.0° |
| 0.0° | 70.0° | 0.0° | 70.0° |
| 30.0° | 30.0° | 0.0° | 0.0° |
| 30.0° | 60.0° | 0.0° | 30.0° |
| 30.0° | 70.0° | 0.0° | 40.0° |
| 60.0° | 30.0° | 0.0° | 30.0° |
| 60.0° | 60.0° | 0.0° | 0.0° |
| 60.0° | 70.0° | 0.0° | 10.0° |
| 0.0° | 30.0° | 180.0° | 30.0° |
| 0.0° | 60.0° | 180.0° | 60.0° |
| 0.0° | 70.0° | 180.0° | 70.0° |
| 30.0° | 0.0° | 180.0° | 30.0° |
| 30.0° | 60.0° | 180.0° | 90.0° |
| 30.0° | 70.0° | 180.0° | 100.0° |
| 60.0° | 0.0° | 180.0° | 60.0° |
| 60.0° | 30.0° | 180.0° | 90.0° |
- Name
- FULL Sample
- Experiment
- Test experiment BRDF
- Date begin
- 2007-01-01
- Release date
- 2026-03-31 14:57:57+0000 UTC
- Version (Date)
- #1 (2026-03-31 14:57:57+0000 UTC, Updated: 2026-03-31 14:57:57+0000 UTC)
- History
-
Date Mode Version Status Comments 2024-11-02 16:38:57+0000 UTC first import #1 valid version 2007-00-00: new bidirectional reflectance spectrum (NIR) of 5.16% H2O adsorbed on Palagonite
- Analysis
- raw bidirectional reflectance spectrum calibrated: 1) with "Spectralon 99%" measured under same geometry using its absolute BRDF (1.7-2.5µm) and 2) with "Infragold" using its relative spectral reflectance (2.5-4.12µm)
- Quality flag
- 4