| Автор | Schoeberl, Mark R. |
| Автор | Doiron, Scott D. |
| Автор | Lait, Leslie R. |
| Автор | Newman, Paul A. |
| Автор | Krueger, Arlin J. |
| Дата выпуска | 1993 |
| dc.description | An isentropic trajectory model is used to simulate the evolution of the southern hemisphere SO<sub>2</sub> cloud associated with the eruption of Cerro Hudson. By matching the parcel trajectories with total ozone mapping spectrometer SO<sub>2</sub> retrievals, the principal stratospheric injection region is determined to be between 11 and 16 km in altitude. This region is characterized by weak wind shears and is located just poleward of the subtropical jet in the outer fringe of the stratospheric polar vortex. The lack of wind shear in the injection region explains the slow zonal dispersal of the SO<sub>2</sub> cloud which was still clearly observed 19 days after the eruption. The trajectory model simulation of the SO<sub>2</sub> cloud shows good agreement with observations for 7 days after the eruption. Using the potential vorticity and potential temperature estimates of the initial eruption cloud, the cloud position relative to the polar night jet is shown to be nearly fixed up to September 2, 1991, which was as long as the cloud was observed. This result suggests that the lower stratospheric polar and mid‐latitude regions are nearly isolated from each other during the late August period. |
| Формат | application.pdf |
| Копирайт | This paper is not subject to U.S. copyright. Published in 1993 by the American Geophysical Union. |
| Тема | ATMOSPHERIC COMPOSITION AND STRUCTURE |
| Тема | Volcanic effects |
| Тема | ATMOSPHERIC PROCESSES |
| Тема | Meteorology and Atmospheric Dynamics: Middle atmosphere dynamics |
| Тема | Meteorology and Atmospheric Dynamics: Polar meteorology |
| Тема | VOLCANOLOGY |
| Тема | Atmospheric effects |
| Название | A simulation of the Cerro Hudson SO<sub>2</sub> cloud |
| Тип | article |
| DOI | 10.1029/92JD02517 |
| Electronic ISSN | 2156-2202 |
| Print ISSN | 0148-0227 |
| Журнал | Journal of Geophysical Research: Atmospheres |
| Том | 98 |
| Первая страница | 2949 |
| Последняя страница | 2955 |
| Выпуск | D2 |
| Библиографическая ссылка | Doiron, Scott D., et al., Transport of the Cerro Hudson SO<sub>2</sub> clouds, Eos Trans. AGU, 72, 489, 1991. |
| Библиографическая ссылка | Hanson, D., K.Mauersberger, Laboratory studies of the nitric acid trihydrate: Implications for the south polar stratosphere, Geophys. Res. Lett., 15, 855–858, 1988. |
| Библиографическая ссылка | McKeen, S. A., S. C.Liu, C. S.Kiang, On the chemistry of stratospheric SO<sub>2</sub> from volcanic eruptions, J. Geophys. Res., 89, 4873–4881, 1984. |
| Библиографическая ссылка | Newman, P. A., et al., Meteorological atlas of the Southern Hemisphere lower stratosphere for August and September 1987, NASA Tech. Memo., 4049, 131, 1988. |
| Библиографическая ссылка | Schoeberl, M. R., D. L.Hartmann, The dynamics of the stratospheric polar vortex and its relation to the springtime ozone depletions, Science, 251, 46–52, 1991. |
| Библиографическая ссылка | Schoeberl, M. R., andL. R.Lait, Conservative coordinate transformations for atmospheric measurements, inEOS NATO Summer School, edited byG.Visconti, andJ.Gille, in press,1992. |
| Библиографическая ссылка | Schoeberl, M. R., et al., Reconstruction of the constituent distribution and trends in the Antarctic polar vortex from ER‐2 flight observations, J. Geophys. Res., 94, 16,815–16,845, 1989. |
| Библиографическая ссылка | Schoeberl, M. R., L. R.Lait, P. A.Newman, J. E.Rosenfield, The structure of the polar vortex, J. Geophys. Res., 97, 7859–7882, 1992. |
| Библиографическая ссылка | , Smithsonian Institution, Global Volcanism Network Bulletin, , 16, no. 7, 2–4, Washington, D.C., 1991. |
