Global Distribution of the Ozone Component Resulting from Earth's Geodynamics
Abstract
Here we propose that the global ozone component, unexplained by solar radiation and galactic cosmic rays, results from sources of the terrestrial origin. We call this component the residual ozone (RO). Our hypothesis is based on correlations between distribution of RO, tectonic plate motions estimated by space geodesy and seismic tomography of the Earth's core surface. The pattern of a present-day global map of RO is remarkably simple; it comprises two regions: positive and negative. We provide arguments that this pattern evolved following the break-up of the Pangaea supercontinent 175 Ma ago, together with motion of tectonic plates to their current locations. We recovered the location of where the RO distribution "broke-up" at the time of the Pangaea break-up. This line of the initial RO break-up is mostly located over modern oceanic areas of the Earth and over Africa. This line also lies very close to the 0-contour of the Earth's core surface. Thus the following geodynamic process can be regarded: the mantle convective currents starting at the core surface provoke the break-up of Pangaea and of RO. Then the plates move to their current locations and RO evolves to its current pattern.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2011
- Bibcode:
- 2011AGUFMGC43B0904S
- Keywords:
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- 1622 GLOBAL CHANGE / Earth system modeling;
- 1699 GLOBAL CHANGE / General or miscellaneous;
- Tropospheric Ozone