Experiment
Title
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
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
Type(s)
laboratory measurement
Description
Vis-NIR BRDF spectra of sintered snow (from Arselle) [i=0, 20, 30, 40, 50, 60, 65°; e=0, 20, 40, 50, 65°; az=0, 45, 90, 140, 160, 180°], of snow with a thin top slab of ice (3 thicknesses: 1.42, 7.45, 12.5mm) [i=40, 50, 60, 70°; e=0, 10, 20°; az=0, 45, 90, 140, 160, 180°], and of the specular peak of the 12.5mm slab [i=50, e=50°$\pm$5°; i=65°, e=65°$\pm$5°; az=170-180°] - T = -10°C
Number of spectra
19
Comments
The sample was put into rotation in the spectro-radiogoniometer for the measurements. The sample completes a full rotation (10 s) during the measurement of the reflectance at one wavelength and one geometry. Each spectrum was thus integrated over 10 different positions of the sample
Variable type(s)
  • sample texture
  • sample thickness
  • incidence angle
Comments
series of combinations of illumination, observation and azimut geometries
Instrument
SHINE Spectro-Gonio bidirectional reflection Vis-NIR
Sample holder
stainless-steel cylinder in cold chamber
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
Vis, NIR
Valid spectral range(s)
Min - Max (${\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
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
Spatial resolution
20.0 ${\pm}$ 0.1 $mm$
Comments
spatial resolution over x vary as 1/cos(obs angle)
Date begin - end
2009-01-14 - 2009-03-12

Versions

Release date
2020-03-17 11:55:30 UTC+0000
Version (Date)
#1 (2020-03-17 07:30:22 UTC+0000, Updated: 2020-03-18 14:21:56 UTC+0000)
Sponsors
  • Programme National de Planétologie - INSU/CNRS (PNP)
  • Centre National d'Etudes Spatiales (CNES) (OMEGA/Mars Express)