Seasonal variations of tropospheric ozone at Natal, Brazil
نویسندگان
چکیده
منابع مشابه
Tropospheric ozone variations governed by changes in stratospheric circulation
Thedownward transport of stratospheric ozone is an important natural source of tropospheric ozone, particularly in the upper troposphere, where changes in ozone have their largest radiative e ect1. Stratospheric circulation is projected to intensify over the coming century, which could lead to an increase in the flux of ozone from the stratosphere to the troposphere2–4. However, large uncertain...
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Background: Tropospheric ozone is difficult to retrieve from satellites because of the abundance of ozone in the stratosphere. Tropospheric ozone has become a significant environmental issue and can be exacerbated by UT/LS folding and longrange transport events. Ozone can be moved from the stratosphere to the troposphere by upper tropospheric meteorological events. The Ozone Monitoring Instrume...
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Distribution and origin of ozone in the eastern Mediterranean free troposphere during MINOS (August 2001) G.-J. Roelofs, B. Scheeren , J. Heland, H. Ziereis, and J. Lelieveld Institute for Marine and Atmospheric Research, Utrecht University, 3508 TA Utrecht, The Netherlands Institute for Atmospheric Physics, Deutsches Zentrum für Luftund Raumfahrt, Oberpfaffenhofen, Germany Max Planck Institute...
متن کاملThe tropospheric ozone problem.
Derived from measurements it has been concluded that in the last hundred years the ground-based ozone concentration has risen by about a factor of two. Models also show a doubling of the tropospheric ozone content due to human activities. It is very likely that mean ozone concentration will further increase. In contrast, episodes with excess ozone levels ("summer smog") have become rare in Cent...
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Ozone measurements at five high-elevation (Z 1000 m msl) Mountain Cloud Chemistry Program (MCCa) sites in the eastern United States for the period from May to October 1986-1988 have been analyzed. In order to characterize and compare the exposure to ozone at these sites, several ozone exposure indices are used. The sum of all hourly mean ozone concentrations equal to or greater than 0.07 ppm (S...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Atmospheres
سال: 1986
ISSN: 0148-0227
DOI: 10.1029/jd091id07p07875