publication . Article . Other literature type . 1996

Development of convection along the SPCZ within a Madden‐Julian oscillation

Adrian Matthews; Hoskins, Bj; Slingo, Jm; Blackburn, M.;
Open Access English
  • Published: 01 Apr 1996
  • Publisher: Royal Meteorological Society
Abstract
A subtropical Rossby wave propagation mechanism is proposed to account for the poleward and eastward progression of intraseasonal convective anomalies along the South Pacific Convergence Zone (SPCZ) that is observed in a significant proportion of Madden-Julian Oscillations (MJOs). Large scale convection, associated with an MJO, is assumed to be already established over the Indonesian region. The latent heating associated with this convection forces an equatorial Rossby wave response with an upper tropospheric anticyclone, centred over or slightly to the west of the convection. Large potential vorticity (PV) gradients, associated with the subtropical jet and the ...
Subjects
free text keywords: Anticyclone, Convection, South Pacific convergence zone, Climatology, Meteorology, Atmospheric sciences, Intertropical Convergence Zone, Madden–Julian oscillation, Rossby wave, Convergence zone, Potential vorticity, Mathematics, Atmospheric Science
Related Organizations
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