Publication Date:
2019-07-13
Description:
Our measurements of wet bulb depression at different pressures matched the modeled adiabatic saturation temps reasonably well. At a dry bulb temp of 25 C, the normal wet bulb temp for 30% RH and 100 kPa is approx.15 C, but this dropped to approx.8 C at 10 kPa. The results suggest that psychrometers need direct calibration at the target pressures or that pressure corrected charts are required. For a given vapour pressure deficit, any moist surfaces, including transpiring plant leaves, will be cooler at lower pressures due to the increased evaporation rates.
Keywords:
Exobiology
Type:
KSC-2008-120
,
COSPAR (Committee on Space Research); Jul 13, 2008 - Jul 20, 2008; Montreal; Canada
Format:
application/pdf
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