Influence of volcanic eruptions on the climate of the Asian monsoon region

Details Influence of volcanic eruptions on the climate of the Asian monsoon region Influence of volcanic eruptions on the climate of the Asian monsoon region

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3722703a&link_type=abstract

Geophysical Research Letters, Volume 37, Issue 22, CiteID L22703

Physics

Volcanology: Volcano/Climate Interactions (1605, 3309), Atmospheric Processes: Paleoclimatology (0473, 4900), Paleoceanography: Dendrochronology, Paleoceanography: Global Climate Models (1626, 3337), Geographic Location: Asia

Scientific paper

Several state-of-the-art general circulation models (GCMs) predict that large volcanic eruptions should result in anomalous dry conditions throughout much of monsoon Asia. Here, we use long and well-validated proxy reconstructions of Asian droughts and pluvials to detect the influence of volcanic radiative forcing on the hydroclimate of the region since the late Medieval period. Superposed epoch analysis reveals significantly wetter conditions over mainland southeast Asia in the year of an eruption, with drier conditions in central Asia. Our proxy and model comparison suggests that GCMs may not yet capture all of the important ocean-atmosphere dynamics responsible for the influence of explosive volcanism on the climate of Asia.

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