Sample
Name
H2O ice layer over CO2 snow with 1.5% H2O ice
Database
Experimentalists
Date
2015-01-01
Provider
IPAG
Previous sample
CO2 snow with 1.5% H2O ice
Parent sample
CO2 snow with 1.5% H2O ice
Evolution of the $CO_2$ snow sample mixed with 1.5% $H_2O$ ice: B) after 0h30 sublimation (t4); C) after 0h40 (t5); D) after 0h50 (t6); E) after 2h30 sublimation (t14) [Philippe 1996]
Physical characteristics
Diameter
80.0 $mm$
Sample changes
$CO_2$ sublimation: growth of top H2O layer. Surface area: 62$^{+1.3}_{-1.3}$%, thickness: 48$^{+1.6}_{-1.6}$µm, mean grain size: 279$^{+30}_{-43}$µm; 1µm frost: 5.72$^{+0.95}_{-1.52}$%
Substrate material
cooper
Substrate comments
cylindrical 80mm diameter, 60mm deep
Comments
sublimating CO2+H2O mixture deposited over martian analogue dust with an initial thickness of 55 mm decreasing with time
Temperature
148.15 $\pm$ 0.5 $K$
Type
molecular gas
Fluids
Fluid temperature
148.15 $\pm$ 0.5 $K$
Fluid pressure
6.47 $\pm$ 0.03 $mbar$
Source
Halogen lamp
Chronology
before spectrum
Particle
Family
photons
Type
Vis photons
Radiance
Radiant flux
2250.0 $\pm$ 100.0 J.s-1.m-2
Source
Halogen lamp
Chronology
before spectrum
Irradiation time
10.0 $\pm$ 0.25 $min$
Comments
the time is the total illumination time since start of experiment
Radiance
Radiant flux
2200.0 $\pm$ 100.0 J.s-1.m-2
Radiant fluence
1320000.0 $\pm$ 93000.0 J.s-1.m-2
Publications
Number
3
Arrangement
heterogeneous H2O ice layer developing during sublimation on top of the CO2+H2O snow mixture deposited over a 5 mm thick flat layer of martian analogue dust
Layers