Mass spectrometric measurement of the positive ion composition in the stratosphere

Details Mass spectrometric measurement of the positive ion composition in the stratosphere Mass spectrometric measurement of the positive ion composition in the stratosphere

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978natur.271..642a&link_type=abstract

Nature, vol. 271, Feb. 16, 1978, p. 642-644.

Computer Science

Sound

13

Atmospheric Composition, Cations, Ion Concentration, Mass Spectroscopy, Stratosphere, Analog Data, Balloon Sounding, Formaldehyde, Hydrates, Signal Detection

Scientific paper

Balloon-borne measurements using a quadrupole mass spectrometer have revealed positive ion concentration on the order of 100-10,000 per cubic cm. Signal detection using analog and pulse counting techniques provided sensitivity from 0-109 AMU, with greatest accuracy above 50 AMU. Count rate (integration time: 6s/step) and mass number (in 1 AMU increments) were recorded at an altitude of 35 km and plotted on a graph. Observations based on these data lead to predictions of stratospheric formaldehyde, although none has actually been recorded. An alternative, and more plausible explanation of the data would indicate the presence of hydrates of N3/plus/, and ozone.

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