STUDI MODEL UNTUK PENINGKATAN PRESIPITASI AWAN KONVEKTIF DENGAN BUBUK GARAM
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Abstract
Sebuah studi tentang penggunaan garam serbuk polidispersi sebagai bahan semai
telah dilaksanakan dengan memakai model 1-dimensi. Dalam studi ini pengaruh
penambahan serbuk garam tersebut terhadap distribusi tetes awan dan jumlah penambahan presipitasi telah dilakukan, serta hasilnya telah dianalisa dan dibandingkan dengan hasil yang diperoleh pada pemakaian partikel higroskopis yang diperoleh dari flare piroteknik. Kondisi awan yang dipelajari terdiri dari beberapa macam ketinggian, updraft dan konsentrasi inti kondensasi atmosfer semula. Hasil studi menunjukkan bahwa bubuk garam polidisperse dapat dipakai untuk menghasilkan presipitasi dari awan marginal yang biasanya tidak mampu menghasilkan presipitasi.
A study of use of polydisperse salt as seeding agent in cloud modification was conducted using 1-dimensional model. In this study the effects of introduction of the salt powder to cloud droplet distribution and the amount of precipitation enhancement were analyzed and compared to the results obtained by introduction of hygroscopic particles from pyrotechnic flares at various cloud media conditions such as cloud thickness, updraft, and original atmospheric condensation nuclei. This study reveals that polydisperse salt powder is usable to obtain precipitation from marginal cloud that usually can not produce precipitation.
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