Iodine‐132 was used as a tracer to demonstrate that ozone causes iodine vapor to be released from the sea surface. This rate of release was porportional to ozone concentration in the range 0–100 ppb and depended on mixing of the water phase. At the mean ozone concentration existing at the sea surface the rate of iodine release was equivalent to an annual contribution of 6 to 12 × 1010 g to the atmosphere. This estimate is subject to uncertainties arising from inadequate knowledge of the mean concentration of iodide at the sea surface and the effect of mixing of the surface sea water on the rate of release of iodine. The significance of such a contribution to the iodine budget of the atmosphere is discussed.
M EASUREMENTS made on the penetrating component of cosmic radiation near sea level for a period of 45 days have been utilized for statistical correlation with data from the daily ascents of two nearby radiosonde stations. The measuring equipment consisted of three trays of G-M tubes mounted as a vertical telescope. The telescope was operated under 12 inches of concrete in floors and roof, and a 10-cm Pb absorber was placed between trays 2 and 3. The pulses from the trays were fed into pulse amplifiers and into a coincidence circuit employing pulse shaping prior to the coincidence measurement. Threefold coincidence pulses were applied to a sealer-pen recorder arrangement which recorded the coincidence through a scale of eight. This allowed continuous monitoring of equipment performance.To account for the fluctuations of the penetrating intensity at the ground, Duperier 1 introduced the temperature of the /x-meson production layer to be used in addition to the atmospheric pressure and the height of the production layer, the effects of which were already known. 2 According to Duperier's model, the probability that a 7r-meson will decay into a /u-meson is dependent on the density of the region in which the ir-meson finds itself. Therefore, the ju-meson intensity at the ground depends on the temperature of the production region.The telescope was arranged to have approximately spherical symmetry over the solid angle subtended, so no zenith angle correction was applied. The maximum angular aperture of the arrangement was 17°7' from the vertical. Hourly counting rates were obtained from the observed data, and the mean rate for each day was computed for the 45 days extending from October 9 to November 22, 1950, which were free from electronic failures.The mean hourly counting rate, the daily average of the tempertture and height of the 100-millibar level, and the daily mean barometric pressure obtained from the filed radiosonde observations of the Portland, Maine, and Nantucket, Massachusetts, Weather Bureau Stations were analyzed for statistical correlation. A linear regression equation aJ c =aSr-r-j35B-h
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.