OBSERVASI PERTUMBUHAN AWAN DI DAS MAMASA SULAWESI BARAT DENGAN RADAR CUACA
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Abstract
Telah dilakukan pengamatan awan di DAS Mamasa berdasarkan data X-band Mobile Radar untuk mengetahui karakteristik pertumbuhan awan di daerah tersebut. Pengamatan awan dilakukan pada saat kegiatan penyemaian awan tangal 21 Oktober - 19 November 2009. Hasil pengamatan menunjukkan bahwa pertumbuhan awan di DAS Mamasa dipengaruhi oleh proses orografik dan arah angin. Pada saat angin baratan, pertumbuhan awan terkonsentrasi di sisi bagian barat DAS Mamasa. Sebaliknya, pertumbuhan awan terkonsentrasi di sisi bagian timur DAS Mamasa ketika terjadi angin timuran.
Study on the characteristic of cloud development at Mamasa catchment area is very important since the water supply for Bakaru hydro-electric power is highly depend on the rain fall over this area. During rain enhancement project on 21 October to 19 November 2009, convective clouds have been analized based on X-band mobile weather radar observation over Mamasa River catchment area. The observation result shows that cloud development in this area are influenced by orographic processes and wind direction. During westerly wind, the clouds developed over the western part of catchment area. On the contrary, the clouds were observed over the east side of cathment area during easterly wind.
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