Spectrum

Vis-NIR bidirectional reflection spectra (i=0,30,60°, e=0,30,60,70°, az=0,180°) of wet crusted Snow - Argentière (S2) at -10°C

Title
Vis-NIR bidirectional reflection spectra (i=0,30,60°, e=0,30,60,70°, az=0,180°) of wet crusted Snow - Argentière (S2) at -10°C
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Angular geometry
All geometries
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Data
Unit:  Range: Valid spectral range(s): 4000.0 - 20408.1632653061 micron
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DOI
10.26302/SSHADE/EXPERIMENT_BS_20120925_011
Data reference
Dumont, Marie; Brissaud, Olivier; Schmitt, Bernard (2008): Vis-NIR bidirectional reflection spectra (i=0,30,60°, e=0,30,60,70°, az=0,180°) of wet crusted Snow - Argentière (S2) at -10°C. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_BS_20120925_011
Publications
Database
Experimentalists
Spectrum type
Experiment type
laboratory measurement
Type
reflectance factor
Comments
there is an artifact below 0.66µm for 2 extreme geometries: i=60°, e=60°,70°, slightly visible also for e=0°,30°
Instrument #1
Instrument
SHINE Spectro-Gonio bidirectional reflection Vis-NIR
Sample holder
stainless-steel cylinder (D=30, h=12cm) (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 0.49 - 2.5 0.02 0.02 0.001
Scan number
10
Comments
measured from 0.40 to 2.98 µm
Observation geometry
bidirectional
Observation mode
three variable angles
Resolution illumination
0.1°
Resolution observation
4.1°
Illumination
Observation
Comments
partial linear polarization, variable with wavelength (from monochromator gratings)
Observation mode
single spot
Pixels number
1 x 1
Comments
spatial extent/resolution over y is 20 mm, an vary over x: 20/cos(e) mm
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° 0.0° 0.0° 30.0°
30.0° 60.0° 0.0° 30.0°
30.0° 70.0° 0.0° 40.0°
60.0° 0.0° 0.0° 60.0°
60.0° 30.0° 0.0° 30.0°
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° 30.0° 180.0° 60.0°
30.0° 60.0° 180.0° 90.0°
30.0° 70.0° 180.0° 100.0°
60.0° 30.0° 180.0° 90.0°
60.0° 60.0° 180.0° 120.0°
60.0° 70.0° 180.0° 130.0°
Name
refrozen wet crusted snow - Argentière
Experiment
Vis-NIR bidirectional reflection spectra (i=0,30,60°, e=0,30,60,70°, az=0,180°) of wet crusted Snow - Argentière (S2) at -10°C
Date begin
2008-03-10 11:20:00
Date end
2008-03-11 23:02:00
Release date
2019-12-04 10:18:39 UTC+0000
Version (Date)
#2 (2019-12-04 10:18:39 UTC+0000, Updated: 2020-03-07 08:22:16 UTC+0000)
History
Date Mode Version Status Comments
2017-11-17 17:16:56 UTC+0000 first import #1 obsolete version 2012-09-25: new snow bidirectional reflectance spectra (Vis-NIR)]
2019-12-04 10:18:39 UTC+0000 new version #2 valid version converted the negative 'e' to positive and rotated their 'az' by 180°)
Analysis
raw bidirectional reflectance spectrum calibrated with Spectralon 99% (< 2.4 µm) and Infragold (> 2.4 µm) references under same geometry and with its absolute BRDF
Quality flag
4
Validator(s)