Modelling of local modification of chemical composition generated by artificial beam injection in stratosphere
Abstract
The physical/chemical processes that are occurring in the middle atmosphere, are very complex and knowledge of them are obviously poor. At the same time the understanding of these processes is necessary, in particular, for an explanation of ozone dynamics and influencing on it of the different factors, for example, impurities of anthropogenous nature. In the present activity the capability of creation of noticeable local disturbances of concentration of ozone and other minor neutral components in stratosphere si theoretically modeled for artificial injection of high energy electron beams from a high-altitude balloon. With the help of numerical simulations (31 reactions) the quantitative assessments of expected effect for different altitudes (range of 35-45 km) and different values of eddy diffusion factor are obtained and presented. It is shown the considered means has a number of advantages in comparison with method of artificial action on stratosphere ozone by VHF generation of ionized area in atmosphere. At first, it is much more friend and precisely to conduct diagnostic of effect, which one arises due to "in -situ" onboard measurements from a balloon. Secondly, it is possible to inject any impurities (freons) to study directly in stratosphere their affect on ozone. The method, tendered here, requires considerably smaller material costs and can be realized already now. Based on presented modeling results it is important to note that in our method an integral disturbance in stratosphere (full quantity of created molecules of ozone, nitric oxides etc.) is rather insignificant, as the effect is localized near to injected electron beam. Therefore there is no hazard of deposition of unchecked injury to environment. At the same time realization of tendered experiment will allow essentially to deepen our representations about composite physical/chemical processes occurring in middle atmosphere (stratosphere).
- Publication:
-
34th COSPAR Scientific Assembly
- Pub Date:
- 2002
- Bibcode:
- 2002cosp...34E.330O