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.% MgSO4
Spectrum
Vis-NIR spectrum of sublimating water ice + MgSO4 at 179.5 K
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.2 K (t=0.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.3 K (t=0.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.7 K (t=1.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.5 K (t=2.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.3 K (t=2.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.0 K (t=3.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.5 K (t=3.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 180.9 K (t=4.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 180.2 K (t=4.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 179.5 K (t=4.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 178.8 K (t=5.4 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 178.0 K (t=5.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 177.3 K (t=6.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 176.7 K (t=6.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 176.0 K (t=7.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 175.4 K (t=7.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 174.8 K (t=8.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 174.4 K (t=8.4 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 173.9 K (t=8.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 173.5 K (t=9.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 173.1 K (t=9.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 172.7 K (t=10.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 172.3 K (t=10.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 171.9 K (t=11.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 171.5 K (t=11.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 171.1 K (t=11.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 170.8 K (t=12.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 170.5 K (t=12.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 170.3 K (t=13.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 170.0 K (t=13.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 169.8 K (t=14.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 169.6 K (t=14.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 169.5 K (t=14.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 169.4 K (t=15.4 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 169.2 K (t=15.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 169.1 K (t=16.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 169.0 K (t=16.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 168.8 K (t=17.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 168.6 K (t=17.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 168.3 K (t=18.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 168.2 K (t=18.4 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 168.0 K (t=18.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 167.9 K (t=19.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 167.8 K (t=19.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 167.7 K (t=20.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 167.5 K (t=20.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 167.4 K (t=21.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 167.3 K (t=21.4 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 167.2 K (t=21.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 167.2 K (t=22.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 167.0 K (t=22.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 166.9 K (t=23.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 166.8 K (t=23.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 166.8 K (t=24.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 166.7 K (t=24.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 166.3 K (t=26.4 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 165.4 K (t=32.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 164.9 K (t=38.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 164.6 K (t=44.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 164.5 K (t=50.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 164.2 K (t=56.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 164.2 K (t=62.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 163.9 K (t=68.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 163.5 K (t=73.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 163.4 K (t=79.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 163.6 K (t=85.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 164.2 K (t=91.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 164.3 K (t=119.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 173.7 K (t=120.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 180.3 K (t=121.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.3 K (t=121.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.9 K (t=138.4 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.9 K (t=139.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.9 K (t=140.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.8 K (t=141.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.8 K (t=142.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.7 K (t=143.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.7 K (t=144.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.5 K (t=144.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.4 K (t=145.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.4 K (t=146.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.4 K (t=147.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.4 K (t=148.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.4 K (t=149.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.3 K (t=150.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.3 K (t=151.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.3 K (t=152.4 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.2 K (t=153.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.1 K (t=154.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.1 K (t=155.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 183.0 K (t=156.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.9 K (t=157.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.9 K (t=158.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.9 K (t=158.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.9 K (t=159.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.9 K (t=160.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.8 K (t=161.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.8 K (t=162.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.8 K (t=163.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.7 K (t=164.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.6 K (t=165.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.6 K (t=166.4 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.5 K (t=167.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.4 K (t=168.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.4 K (t=169.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.3 K (t=170.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.3 K (t=171.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.3 K (t=172.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.3 K (t=172.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.3 K (t=173.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.3 K (t=174.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.2 K (t=175.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.2 K (t=176.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.2 K (t=177.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.1 K (t=178.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.0 K (t=179.4 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.0 K (t=180.4 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.9 K (t=181.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.9 K (t=182.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.9 K (t=183.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.0 K (t=184.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.0 K (t=185.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 182.0 K (t=186.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.9 K (t=186.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.8 K (t=187.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.8 K (t=188.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.8 K (t=189.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.9 K (t=190.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.8 K (t=191.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.8 K (t=192.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.7 K (t=193.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.7 K (t=194.4 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.7 K (t=195.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.6 K (t=196.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.5 K (t=197.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.5 K (t=198.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.5 K (t=199.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.4 K (t=200.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.4 K (t=200.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.3 K (t=201.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.4 K (t=202.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.5 K (t=203.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.5 K (t=204.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.5 K (t=205.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.5 K (t=206.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.4 K (t=207.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.4 K (t=208.4 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.4 K (t=209.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.4 K (t=210.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.5 K (t=211.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.4 K (t=212.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.4 K (t=213.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.4 K (t=214.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.3 K (t=214.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.2 K (t=215.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.2 K (t=216.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.2 K (t=217.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.2 K (t=218.7 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.3 K (t=219.6 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.3 K (t=220.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.2 K (t=221.5 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.2 K (t=222.4 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.2 K (t=223.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.1 K (t=224.3 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.1 K (t=225.2 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.1 K (t=226.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.1 K (t=227.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.1 K (t=228.0 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.0 K (t=228.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.0 K (t=229.9 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 181.0 K (t=230.8 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 179.9 K (t=402.1 hours)
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Vis-NIR spectrum of sublimating water ice + MgSO4 at 180.7 K (t=403.0 hours)
- Title
- 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.% MgSO4
- DOI
- 10.26302/SSHADE/EXPERIMENT_RO_20240405_000
- Data reference
- Ottersberg, Rafael (2024): 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.% MgSO4. SSHADE/BYPASS (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_RO_20240405_000
- Publications
- Database(s)
- Experimentalists
- Type(s)
- laboratory measurement
- Description
- Spherical ice particles are produced by spraying droplets of salt solution (5 wt.% MgSO4) into liquid nitrogen with the SPIPA-B setup. A centimeter-thick sample made of these particles is then introduced in the SCITEAS-2 simulation chamber and its slow sublimation at low temperature and in secondary vacuum is followed for several tens of hours by VIS-NIR hyperspectral imaging. The surface temperature of the sample is monitored continuously using a thermopile sensor, which measures the thermal emission in the far infrared.
- Number of spectra
- 174
- Variable type(s)
-
- time
- temperature
- pressure
- Instrument
- MoHIS - Hyperspectral imaging system Vis-NIR
- Standard medium
- vacuum
- Observation mode
- spectrum
- Spectral range type(s)
- Vis, NIR
- Valid spectral range(s)
-
Min - Max () Sampling () Resolution () Position accuracy () Absorption edge #1 400.0 - 2000.0 5.0 5.4 #2 2000.0 - 2400.0 5.0 10.8
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
- biconical
- Observation mode
- fixed angles
- Incidence angle
- 0.0°
- Emergence angle
- 5.0°
- Azimuth angle
- 0.0°
- Phase angle
- 5.0°
- Observation mode
- roi averaged
- Date begin - end
- 2024-04-05 - 2024-04-23
Versions
- Release date
- 2025-04-17 15:45:03+0000 UTC
- Version (Date)
- #1 (2025-04-17 15:45:03+0000 UTC, Updated: 2025-04-17 15:45:03+0000 UTC)
View of the sample in the simulation chamber at the beginning of the experiment. All reflectance spectra shown here are integrated over the ROI drawn in red over the sample.
- Sponsors
-
- NCCR PlanetS (SNSF)