Experiment
VIS-NIR reflectance spectra collected during low-temperature and near-vacuum sublimation of spherical salty ice particles (67 µm average diameter) produced by freezing droplets of a solution of 5wt.% NaCl
Spectrum
Vis-NIR spectrum of sublimating water ice + NaCl at 178.0 K
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Vis-NIR spectrum of sublimating water ice + NaCl at 179.5 K (t=0.3 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 179.3 K (t=1.1 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 178.7 K (t=1.7 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 178.0 K (t=2.3 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 177.2 K (t=3.0 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 174.3 K (t=4.9 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 171.8 K (t=6.9 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 169.8 K (t=8.8 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 165.3 K (t=19.1 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 165.2 K (t=21.1 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 165.0 K (t=23.0 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 165.0 K (t=25.0 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 165.1 K (t=26.9 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 165.1 K (t=28.9 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 165.1 K (t=30.8 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 164.8 K (t=36.5 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 164.6 K (t=42.1 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 164.9 K (t=47.7 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 164.8 K (t=53.3 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 164.5 K (t=58.9 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 164.3 K (t=64.5 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 164.2 K (t=70.1 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 164.2 K (t=75.7 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 164.0 K (t=81.4 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 164.0 K (t=87.0 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 164.0 K (t=92.6 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 163.9 K (t=98.2 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 164.0 K (t=103.8 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 164.0 K (t=109.4 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 164.0 K (t=115.0 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 163.9 K (t=120.6 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 163.9 K (t=126.3 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 163.6 K (t=131.9 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 163.3 K (t=137.5 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 163.2 K (t=143.1 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 163.0 K (t=148.7 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 163.0 K (t=154.3 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 163.0 K (t=159.9 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 162.6 K (t=165.5 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 162.3 K (t=171.2 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 161.9 K (t=176.8 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 161.8 K (t=182.4 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 161.5 K (t=188.0 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 161.6 K (t=193.6 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 161.4 K (t=199.2 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 161.2 K (t=204.8 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 161.0 K (t=210.4 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 160.9 K (t=216.0 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 160.6 K (t=221.7 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 160.4 K (t=227.3 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 160.2 K (t=232.9 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 160.2 K (t=238.5 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 160.1 K (t=244.1 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 160.0 K (t=249.7 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 159.7 K (t=255.3 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 159.6 K (t=260.9 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 159.6 K (t=266.6 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 159.5 K (t=272.2 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 159.4 K (t=307.3 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 166.7 K (t=308.3 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 173.3 K (t=309.2 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 176.4 K (t=310.1 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 177.5 K (t=311.1 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 177.8 K (t=312.0 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 177.7 K (t=313.0 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 177.7 K (t=313.9 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 177.5 K (t=314.9 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 177.2 K (t=315.8 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 176.9 K (t=316.8 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 176.6 K (t=317.7 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 176.4 K (t=318.6 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 176.3 K (t=319.6 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 176.1 K (t=320.5 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 175.9 K (t=321.5 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 175.7 K (t=322.4 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 175.5 K (t=323.4 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 175.3 K (t=324.3 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 175.1 K (t=325.3 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 175.0 K (t=326.2 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 174.9 K (t=327.1 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 174.7 K (t=328.1 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 174.5 K (t=329.0 hours)
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Vis-NIR spectrum of sublimating water ice + NaCl at 174.2 K (t=330.0 hours)
- Name
- Spherical particles of salty H2O ice (SPIPA-B type, 67 µm average diameter, with 5 wt.% Nacl)
- Database
- Experimentalists
- Date
- 2024-03-12
- Provider
- Planetary Ice Laboratory, Space and Planetary Science division, Physics Institute, University of Bern

Sample of spherical particles of salty H2O ice (SPIPA-B type, 67 µm average diameter, with 5 wt.% Nacl) during sublimation. The VIS-NIR reflectance spectrum is collected over the outlined Region of Interest (red).
- Thickness
- 15.0 ± 1.0 mm
- Diameter
- 100.0 mm
- Surface roughness
- smooth
- Sample changes
- Sublimation of the water ice and accumulation of salt at the surface.
- Substrate material
- Black aluminum tape
- Temperature
- 177.72 ± 4.0 K
- Temperature max
- 120.0 K
- Type
- vacuum
- Fluid pressure
- 1.152e-06 ± 1.0e-07 mbar
- Time at T, P, pH
- 0.0 s
- Comments
- Residual pressure in the chamber from the equilibrium between water vapor produced by sublimation and active pumping
- Number
- 1
- Layers