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Summary: Current changes in tropical precipitation
Richard P. Allan1
, Brian J. Soden2
, Viju O. John3
, William
Ingram3,4
, Peter Good3
1
Department of Meteorology, University of Reading, Berks, RG6 6AL
2
RSMAS, Miami, USA
3
Met Office, Exeter, UK
4
Department of Physics, University of Oxford, UK
E-mail: r.p.allan@reading.ac.uk
Abstract. Current changes in tropical precipitation from satellite data and climate
models are assessed. Increased precipitation in moist, ascending regions and reductions
in drier descending branches of the large-scale circulation, previously identified, are
sensitive to the reanalysis products used to define these regions. To avoid homogeneity
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