SYNOPTIC CONDITIONS OF THE SQUAL LINE TYPE OF MESOSCALE CONVECTIVE SYSTEM IN BANGKA BELITUNG ISLANDS
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Published: Aug 30, 2017 |
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Keywords: Mesoscale Convective System, Squall Line, Weather disturbances, Synoptic conditions |
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Abstract
On 28-29 December, 2013 was occurred a meso-scale weather disturbance (Mesoscale Convective System) in form of Squall Line which covers the region of Bangka Belitung archepilago. Phenomenon which catched by Multifunctional Transport Satellite with infrared imagery produce heavy rain with a long duration and identified as nocturnal heavy rain which proved by Tropical Rainfall Measuring Mission data. Pers information claims that heavy rain occurs in hours causing flood and other damage. Analysis of synoptic conditions using reanalysis data from the National Center for Environmental Prediction and the Global Spectral Model of the Japan Meteorological Agencyshows significant role of weather disturbances in synoptic scale. They are wind shear, low level jet, moisture convergences, and moisture transport, and also the stability indices that cause convective growth in large scale with long life span.
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