8B.1
The relationship between precipitable water vapor variability and convective activity over the Tropical Western Pacific as revealed by the GMS split-window data
PAPER WITHDRAWN
Tetsuya Takemi, Osaka University, Suita, Osaka, Japan; and K. I. Shibayama
In this study, we investigate the relationship between the precipitable water vapor (PWV) variability and cumulus convective activity over the Tropical Western Pacific, using the data from the GMS split-window observation. Because of the frequent observation by GMS (every 1 hour), we can conduct a detailed analysis of PWV, which can have a significant impact on the cumulus convection. We modify the split-window method of Chesters et al., which calculate PWV, and compare the derived PWV with the observation by microwave sensor to get a correlation coefficient of 0.6. Using the modified method, our analyses show that deep convection develops as PWV increases, and convective activity is suppressed when PWV is small.
Session 8B, Large-Scale Dynamics and Convection III (Parallel with Sessions 8A, 8C, and 8D)
Wednesday, 1 May 2002, 9:15 AM-10:30 AM
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