Study on latent heating associated tropical precipitating systems on the atmospheric large-scale circulations

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Latent heating associated with tropical precipitating systems are examined using data from the precipitation radar onboard the Tropical Rainfall Measuring Mission satellite. Vertical heating structures over the eastern Pacific are shallow. It is indicated that the tropospheric circulation over the eastern Pacific excited by latent heating is consistent with the observed shallow meridional circulation, using an atmospheric model. Diurnal variations of latent heating structures are also examined. Vertical heating structures over tropical oceans keep almost the same structure all day, but those over tropical lands show a significant variation.