Recorded presentation6D.6
MJO signals in latent heating
Chidong Zhang, Univ. of Miami/RSMAS, Miami, FL; and S. M. Hagos, W. K. Tao, and S. E. Lang
It has been proposed that the vertical structure of latent heating undergoes a systematic change through the life cycle of the Madden-Julian Oscillation (MJO), with low-level heating preceding deep, top-heavy heating during convectively active phases. This perception has been derived from estimates of diabatic heating based on limited observations from a special field campaign (TOGA COARE) and estimates using global reanalysis products. Recent development of TRMM latent heating data provides a unique opportunity to investigate this issue using remote sensing products. In this study, MJO signals are derived from multi-year latent heating profiles of TRMM without reference to any other variable. The existence of such signals signifies the central role of latent heating in the dynamics of the MJO. Recorded presentation
Session 6D, Intraseasonal Variability I
Tuesday, 29 April 2008, 10:15 AM-12:00 PM, Palms I
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