タイトル | Nitrogen fertiliser and stratospheric ozone - Latitudinal effects |
著者(英) | Whitten, R. C.; Riegel, C. A.; Capone, L. A.; Turco, R. P.; Borucki, W. J. |
著者所属(英) | NASA Ames Research Center|San Jose State Univ.|R and D Associates |
発行日 | 1980-01-10 |
言語 | eng |
内容記述 | Substantial increases in atmospheric N2O resulting from the increased use of nitrogen fertilizers might cause large (to 10%) decreases in the stratospheric ozone content. Such ozone decreases would be caused by catalytic reaction cycles involving odd-nitrogen that is formed by N2O decomposition in the upper stratosphere. Turco et al. (1978), using a background chlorine level of 2 ppbv, have shown that if the measured values of specified reactions are used a 50% increase in N2O would lead to a 2.7% increase in the stratospheric column density, although the ozone content above 30 km would be reduced by more than 5%; they also estimated (unpublished data) that the change in the ozone column density caused by doubling the N2O abundance would be very close to zero (within about 0.1%). The present paper extends these calculations of N2O/ozone effects to two dimensions, thereby identifying the latitude dependence expected for such ozone perturbations. The effects of changes in stratospheric chlorine levels on predicted ozone changes are also discussed. |
NASA分類 | ENVIRONMENT POLLUTION |
レポートNO | 80A18948 |
権利 | Copyright |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/423427 |
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