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Title: Condensation nuclei measurement in the stratosphere for the NASA ACE program. Final report, 1 February 1980-31 January 1987

Technical Report ·
OSTI ID:6645057

A condensation nucleus counter which operated at stratospheric pressures was developed, designed, and constructed. It was calibrated in the laboratory. Its response as a function of particle size and concentration was reported. This was the first time that the response of such an instrument was verified in the laboratory. An inlet was constructed which provided near isokinetic sampling. The resulting instrument, the U-2 CNC, was deployed on NASA U-2 aircraft in the study of the climatic effects of aerosol. These studies occurred in March, April, May, July, November, and December of 1992 and in April, May, June, and December of 1983. The U-2 CNC was used in the study of the aerosol cloud resulting from the eruption of El Chichon. It permitted the observation of new particle formation in the stratosphere.

Research Organization:
Denver Univ., CO (United States). Dept. of Engineering
OSTI ID:
6645057
Report Number(s):
N-95-14855; NASA-CR-197031; NAS-1.26:197031; CNN: NAG2-31
Country of Publication:
United States
Language:
English