Surface Fluxes and Tropical Intraseasonal Variability: a Reassessment

The authors argue that interactive feedbacks involving surface moist enthalpy fluxes, both turbulent and radiative, are important to the dynamics of tropical intraseasonal variability. Evidence in favor of this hypothesis includes the observed spatial distribution of intraseasonal variance in precip...

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Bibliographic Details
Published in:Journal of advances in modeling earth systems , Vol.2 (1), p.27-n/a
Main Authors: Sobel, Adam H., Maloney, Eric D., Bellon, Gilles, Frierson, Dargan M.
Format: Article
Language:English
Subjects:
Anomalies
Atmospheric Dynamics
Climate Dynamics
Climate Modeling
General circulation
General Circulation Modeling
General circulation models
Geographical distribution
Heat transfer
Hypotheses
Latent heat
Latent heat flux
Long wave radiation
Mathematical models
Numerical models
Ocean currents
Precipitation
Precipitation anomalies
Radiation
Spatial distribution
Surface fluxes
Tropical climate
Variability
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Summary:The authors argue that interactive feedbacks involving surface moist enthalpy fluxes, both turbulent and radiative, are important to the dynamics of tropical intraseasonal variability. Evidence in favor of this hypothesis includes the observed spatial distribution of intraseasonal variance in precipitation and outgoing longwave radiation, the observed relationship between intraseasonal latent heat flux and precipitation anomalies in regions where intraseasonal variability is strong, and sensitivity experiments performed with a small number of general circulation and idealized models. The authors argue that it would be useful to assess the importance of surface fluxes to intraseasonal variability in a larger number of comprehensive numerical models.
ISSN:1942-2466
1942-2466
DOI:10.3894/JAMES.2010.2.2