The distribution of beryllium‐7 within high‐pressure systems in the eastern United States
- 1 August 1979
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 6 (8), 637-639
- https://doi.org/10.1029/gl006i008p00637
Abstract
During a 1976 rural ozone field study conducted in McKee, Kentucky, and Busick, North Carolina, simultaneous measurements of ozone and beryllium‐7, a tracer of stratospheric air, were obtained. The purpose of this study was to assess the importance of naturally produced stratospheric ozone on ground‐level ozone concentrations observed in rural areas in the Eastern United States. It is currently accepted that the stratospheric contribution to the surface ozone is about 30‐50 ppb, and that the occurrence of this is confined to the front part of high‐pressure systems immediately behind a cold front. Furthermore, it is thought that the stratospheric contribution is negligible on the back side of the high‐pressure system where higher levels of ozone occur. This study seriously questions both of these hypotheses because the highest levels of beryllium‐7 were observed on the back side and not on the front side of high‐pressure systems.This publication has 3 references indexed in Scilit:
- Ozone transport from stratosphere to troposphereGeophysical Research Letters, 1977
- Ozone and Radionuclide Correlations In Air of Marine Trajectory At Quillayute, WashingtonJournal of the Air Pollution Control Association, 1976
- Stratospheric-Tropospheric Exchange Based on Radioactivity, Ozone and Potential VorticityJournal of the Atmospheric Sciences, 1968