Vol. 23 No. 3 (1984)
Articles

INFLUENCE OF THE EL CHICHON ERUPTION ON THE STRATOSPHERE AFTER SUMMER 1982

R. S. QUIROZ
Bio

Published 1984-07-01

How to Cite

QUIROZ, R. S. (1984). INFLUENCE OF THE EL CHICHON ERUPTION ON THE STRATOSPHERE AFTER SUMMER 1982. Geofísica Internacional, 23(3), 363-372. https://doi.org/10.22201/igeof.00167169p.1984.23.3.1157

Abstract

In Quiroz (1983) warming by 1 - 3°C at 30 mb, between 35°N and the equator, was ascribed to the EI Chichón eruption by summer 1982. Two questions are considered here, a possible influence of this warming on the stratospheric quasibiennial oscillation (QBO) and the extent of warming after summer 1982 at 50 -10 mb. The meridional distribution of the warming deduced to summer 1982 does not suggest an important influence on the QBO in wind. The appearance of a contracting period in 1982 - 83 is consistent with such contractions after previous solar maxima since 1951 and does not necessarily reflect an influence due to the eruption. Some indications are given of maximum warming at 30 mb by fall 1982. At 50 and 10 mb the volcano-related temperature change after summer and fall 1982 is difficult to determine because of the presence of strong non-volcanic influences.