Theoretical estimates of the efficiency of the lower stratospheric ion-molecular reactions suggest an existence of another source of ozone (different from the well-known photo-dissociation mechanism). The conditions necessary for activation of autocatalytic ozone production require: (a) increased density of the low energy electrons (naturally produced at these levels by cosmic rays) and (b) reduced amount of water molecules above the tropopause. The short-lasting periods of a significantly decreased cosmic radiation—known as Forbush decreases (FDs)—provide a good opportunity for testing the above hypothesis. In this paper, we have compared the spatial distribution of three different FDs with changes in the lower stratospheric ozone density. We show that the strongest ozone depletion (beneath the ozone layer maximum) coincides very well with the largest magnitude of the FD. The time delay of ozone response to the applied forcing is too short, so the ozone depletion could not be attributed to the stratospheric circulations (as usually done). This result could be interpreted as an indirect confirmation of the importance of energetic particles, precipitating in the Earth's atmosphere, for the spatial-temporal variability of the lower stratospheric ozone density.

Prezantim ne shkollen dimerore ne Shkence te Dhenash te zhvilluar ne Janar ne datat 22-26. Punimi se bashku me materialet ndihmese mund te gjendet ne adresen:

https://indico.cern.ch/event/1308067/contributions/5729543/

Leksionet e shkruara dhe te menduara si materiali teorik dhe ushtrimor baze per kursin e lendes Mekanike Analitike e cila zhvillohet ne Semestrin e IV-t te programit Bachelor ne Fizike, Ky material nuk eshte ne formen e tij te plote, pasi ende eshte ne proces zgjerimi dhe zhvillimi te metejshem. Mekanika Analitike eshte shkalla e pare dhe njekohesisht bazamenti i Fizikes Teorike. Paraqitja sa me e plote dhe rigoroze eshte konsideruar si thelbesore per te mundesuar nje formim sa me te plote dhe ambicioz per studentet dhe pasionantet e Fizikes. Keshillat dhe sugjerimet jane mese te mirepritura.