Experiment
Title
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
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
Type(s)
laboratory measurement
Description
We measured the reflectance spectra (from 0.4 to 4.2 µm) of water ice particles of varying sizes (from 70 to 1060 µm), shapes (spherical or irregular grains), and three mixtures of ~70 and ~1060 µm grains, at different temperatures from 70 to 220 K.
Number of spectra
75
Variable type(s)
  • sample grain size
  • temperature
  • sample abundance
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
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
Spatial resolution
200.0 $mm$
Date begin - end
2019-03-18 - 2019-03-28

Versions

Release date
2021-11-26 18:12:38 UTC+0000
Version (Date)
#1 (2021-11-25 17:09:53 UTC+0000, Updated: 2021-11-26 18:12:38 UTC+0000)