| Idteknologi | 621 |
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| Judul | Mempelajari Karakter Flow Di Atas Sistem Orografik Jakarta, Bogor, Puncak Untuk Transport ? |
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| Abstrak | Simulating transport seeding agent using AgI tracer from GBG-Tower at Citeko (Bogor area) is presented during period of 17 ? 26 December 2008. Character flow over low mountain ranges from Jakarta (0-50 m) to Puncak (1000 ? 1500m) has been analyses using Froude number. Increasing elevation from Jakarta to Puncak build orographic system and caused flow lifted by topographic contour and building some orographic cloud there. Result of analyses found that flow over system orographic Jakarta,Bogor,Puncak have character low kinetic energy and flow can not reach the highest barrier. With typical flow velocity ranges from 4.6 to 11.4 m/s, flows only reached 700m elevation of barrier. Flow can be reaches the highest elevation if have velocity 25 m/s, the uncommon velocity in this region. During day time (morning to afternoon), typical flow velocity is 6.1 to 11.4 m/s and its reduce during nght day with typical velocity 4.6 ? 9.9 m/s. Cloud over Citeko have base with various heght, generally between 100 and 600 m. The Silver in rain water content is not unique disperse to high altitude after releasing from top of GBG-tower due to no different concentration in rainwater during its releasing day and background ie 0.09 mg/l. Flow character over sistem orographic Jakarta,Bogor,Puncak can not support as transport media for rising seeding agent to reach the higest barir due to low kinetic energy of flow. |
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| Katakunci | Froude number, system orographic,kinetic energy, barrier |
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| Kategori | 7 |
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| Mediamasa | Jurnal Teknologi Lingkungan, Edisi Khusus, Juni 2009 |
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| Alamatlink | http://www.kelair.bppt.go.id/Jtl/2009/Khusus/08flow.pdf |
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| Penulis | Untung Haryanto |
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| Email | air@webmail.bppt.go.id |
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