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Possible Role of the Diurnal Cycle in Land Convection in the Barrier Effect on the Madden-Julian oscillation by the Maritime Continent
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2019
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Source: Geophysical Research Letters, 46, 3001– 3011
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Series: PMEL contribution ; 4851
Details:
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Journal Title:Geophysical Research Letters
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NOAA Program & Office:
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Description:Possible effects of the diurnal cycle in land convection on propagation of the Madden–Julian Oscillation over the Indo-Pacific Maritime Continent (MC) were investigated using satellite observations. Four features distinguishable from their respective climatology are uniquely associated with Madden-Julian oscillation events that cross the MC: strong precipitation over land as their convection centers approach the MC, subsequent increased soil moisture, reduced diurnal amplitude of land convection, and the dominance of precipitation over water by nondiurnal convection as their convection centers move over the MC. These results provide observational evidence for a proposed MAritime Continent Convective diurnal Cycle mechanism in which the diurnal cycle in land convection acts as an intrinsic barrier effect on Madden-Julian oscillation propagation over the MC.
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Source:Geophysical Research Letters, 46, 3001– 3011
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Rights Information:Other
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Compliance:Submitted
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