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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column density, although the ozone content above 30 km would be reduced by more than 5%; they also estimated (unpublished data) that the change in the ozone column density caused by doubling the N2O abundance would be very close to zero (within about 0.1%).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NO80A18948
権利Copyright
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/423427


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