Sampling of long lived trace gases in the middle and upper stratosphere

Computer Science – Sound

Scientific paper

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Air Sampling, Balloon-Borne Instruments, Cryogenic Equipment, Samplers, Flight Tests, Stratosphere, Trace Contaminants

Scientific paper

A light weight compact balloon-borne cryosampler which allows collection of 15 air samples with a total volume of 200 l (STP) in the stratosphere up to altitudes of 45 km was developed. Effects of contamination that might affect the concentration of long lived trace gases (H2, CO, CO2, CH4, N2O, chlorinated hydrocarbons, ethane, propane) were investigated in laboratory and flight tests. The design may also be used for the development of a light weight rocket-borne cryosampler to obtain profiles of trace gases up to altitudes of 70 km using an Orion sounding rocket as the launch vehicle.

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