Physics
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3809706g&link_type=abstract
Geophysical Research Letters, Volume 38, Issue 9, CiteID L09706
Physics
4
Global Change: Impacts Of Global Change (1225, 4321), Global Change: Water Cycles (1836), Global Change: Global Climate Models (3337, 4928), Natural Hazards: Extreme Events (1817, 3235), Atmospheric Processes: Tropical Dynamics
Scientific paper
The changes of extreme winds and its links with precipitation are assessed over the past two decades using daily satellite observations and climate model simulations. Both observations and models indicate a decrease in the frequency of the strongest wind events and an increase in the frequency of light wind events in response to a warming of the tropical oceans. The heaviest precipitation events are found to be more frequent when the tropical oceans warm, but the surface winds associated with these extreme rainfall events weaken. These results add further evidence to suggest that the atmospheric circulation becomes less energetic as the climate warms. It further suggests that the enhancement of the extreme precipitation events is mainly a result of increasing atmospheric water vapor and occurs despite a weakening of the large-scale circulation, which acts to diminish the mass convergence toward the precipitating zones.
Gastineau Guillaume
Soden Brian J.
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