THE ROLE OF TOPOGRAPHY AND LATENT HEAT IN THE VORTEX DEVELOPMENT OVER EASTERN INDIAN OCEAN
Development of the vortex is associated with topographical effects and latent heat release. Topography and latent heat can affect the stability of the atmosphere and have the potential to cause disturbances, such as vortices. This study aims to analyze the role of both of them to vortex formation...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/71152 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Development of the vortex is associated with topographical effects and latent heat
release. Topography and latent heat can affect the stability of the atmosphere and
have the potential to cause disturbances, such as vortices. This study aims to
analyze the role of both of them to vortex formation. This research investigates six
case studies of vortex development in the Eastern Indian Ocean using an energy
budget to analyze the vortex development and the mechanism of vortex formation
is further analyzed by means of numerical simulations. The data used is NCEPFNL.
The results showed that the vortex in the Eastern Indian Ocean is associated
with an imbalance that starts from the lower level, causing disturbances as
indicated by the presence of negative vortices and vortices forming. In numerical
simulations that play the role of topography and latent heat, it shows that the role
of Sumatra's topography is more dominant for vortex formation. When the
simulation is run with reduced topography, the results show that no vortices are
formed. On the other hand, the release of latent heat plays an important role in the
intensification and development of these lower level vortices. |
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