A Study of Heat and Moisture Budgets in the Intense Winter Monsoon over the Warm Ocean Current

Ernest C. Kung Department of Atmospheric Science, University of Missouri-Columbia, Columbia. MO 65211

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Alan J. Siegel Department of Atmospheric Science, University of Missouri-Columbia, Columbia. MO 65211

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Abstract

The large-scale sensible and latent beat budgets in the intense winter monsoon over the Kuroshio region are studied with the AMTEX 74 and 75 observations. Energy variables involved in the sensible heat balance and latent beat balance are computed and examined from the surface to 100 mb. They are also compared with the sensible and latent heat supplies from the sea surface, which are independently estimated.

The large-scale vertical and horizontal transport processes are important in the local balance of sensible and latent heat. The adiabatic conversion term is also significant in the balance of sensible heat. The boundary layer of the atmosphere appears to be a persistent source of sensible and latent beat. The existence of the apparent sensible and latent heat sources above the boundary layer seems to be related to the prevailing synoptic pattern and existing meso-convective systems.

When the winter monsoon dominates over the warm sea, considerable heat energy is transferred from the sea surface. It appears that most of the beat energy supplied through microscale and mesoscale convection interacts directly with the system of the large-scale winter circulation.

Abstract

The large-scale sensible and latent beat budgets in the intense winter monsoon over the Kuroshio region are studied with the AMTEX 74 and 75 observations. Energy variables involved in the sensible heat balance and latent beat balance are computed and examined from the surface to 100 mb. They are also compared with the sensible and latent heat supplies from the sea surface, which are independently estimated.

The large-scale vertical and horizontal transport processes are important in the local balance of sensible and latent heat. The adiabatic conversion term is also significant in the balance of sensible heat. The boundary layer of the atmosphere appears to be a persistent source of sensible and latent beat. The existence of the apparent sensible and latent heat sources above the boundary layer seems to be related to the prevailing synoptic pattern and existing meso-convective systems.

When the winter monsoon dominates over the warm sea, considerable heat energy is transferred from the sea surface. It appears that most of the beat energy supplied through microscale and mesoscale convection interacts directly with the system of the large-scale winter circulation.

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