The solar cycle and cosmic ray particles influence on stratospheric ozone variation

It was analyzed in this paper three available sets of stratospheric ozone measurements at different latitudes obtained by ground UVB sun spectrophotometer Dobson type and low energy stratospheric cosmic rays in the period from 1957 until 1997. By the analysis of these sets of ozone data and satellite observations we could detect a decreasing on ozone intensity at all different latitudes (Belsk/Poland, 51oN-21oE, Tbilisi/Georgia, 42oN-43oE and Cachoeira Paulista/Brazil, 23oS-45oW), in relation to a global mean rate around 10% during the last three solar cycles (about 3.3% by decade). We also search by correlation between cosmic rays measurements in the stratosphere, ozone variations, and sunspot number to verify the possibility of periodic influence on ozone during three solar cycle period. It was confirmed the dependence of ozone concentration variability relating to the sunspot number and the anticorrelation between sunspot number and low energy cosmic ray intensity in the stratosphere.