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All Journal Jurnal Sains & Teknologi Modifikasi Cuaca Social, Humanities, and Educational Studies (SHEs): Conference Series
R Djoko Goenawan
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Education Languange, Linguistic, Communication & Media Social Sciences

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APLIKASI TEKNOLOGI MODIFIKASI CUACA UNTUK MENINGKATKAN CURAH HUJAN DI DAS CITARUM - JAWA BARAT 12 MARET S.D. 10 APRIL 2001 Mimin Karmini; Sutopo Purwo Nugroho; Sunu Tikno; Satyo Nuryanto; Baginda Patar Sitorus; Samsul Bahri; Florentinus Heru Widodo; Jon Arifian; Mahally Kudsy; R Djoko Goenawan; Rino Bahtiar Yahya; Findy Renggono
Jurnal Sains & Teknologi Modifikasi Cuaca Vol. 2 No. 1 (2001): June 2001
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jstmc.v2i1.2141

Abstract

Teknologi modifikasi cuaca sudah sering diaplikasikan di Indonesia terutama untukmeningkatkan jumlah curah hujan. Teknologi modifikasi cuaca diterapkan bila terjadiindikasi penurunan jumlah curah hujan dan kemungkinan akan munculnya fenomena ElNiño sebagai tindakan preventif. Aplikasi teknologi modifikasi cuaca yang dilaksanakan diDAS Citarum, Jawa Barat mulai tanggal 12 Maret s.d. 10 April 2001 adalah berdasarkan kenyataan bahwa inflow DAS Citarum menurun dengan drastis pada bulan Desember 2000 dan sebagai tindakan preventif akan munculnya fenomena El Niño pada akhir tahun 2001 atau 2002. Pada awal tahun 2001, tiga kaskade waduk di DAS Citarum mengalami defisit cadangan air sebanyak 486,36 juta m . Waduk Ir. Juanda yang merupakan waduk multi fungsi harus menyediakan pasokan air untuk: irigasi teknis pada lahan sawah seluas 296.000 ha (2 kali tanam), yang memberikan kontribusi sebesar ± 40 % ke Jabar atau setara dengan ± 10 % Nasional; air baku permukiman dan industri; serta penyediaan tenaga listrik (± 4,5 milyar kWh). Data akhir setelah dilaksanakan penerapan teknologi modifikasi cuaca dengan menggunakan konsep sistim dan lingkungan adalah nilai rata-rata aliran total Citarum sebesar 326,81 m /det dan volume total aliran Citarum sejak mulai kegiatan hingga tanggal 10 April 2001 adalah sebesar 847,1 juta m3.Weather modification technology has been applied in Indonesia especially to enhancerainfall. Weather modification technology has been employed whenever there has beenan indication of rainfall shortage and the possibility of El Niño occurrence asprecautionary action. Weather modification technology that was applied in Citarumcatchment area – West Java on 12 March – 10 April 2001 was based on the fact thatCitarum inflow decreased drastically in December 2000 and also as a preventiveendeavor to the possibility of warm episode in 2001/2002. In the early of 2001, threecascade dams had water storage deficit as much as 486.36 million m3. Ir. Juanda dam,which has multi purposes, has to supply water for: technical irrigation for 296,000 ha ofrice field (2 planting seasons) that contributes ± 40 % to West Java or about ± 10 % ofnational production; fresh water for community and industry; as well as electricity of about 4.5 billion kWh. After the application of weather modification technology by employing system and environment concept, it was recorded that the average inflow of Citarum catchment area was 326.81 m /sec and total volume during the activity was 847.1million m3.
STUDI MODEL UNTUK PENINGKATAN PRESIPITASI AWAN KONVEKTIF DENGAN BUBUK GARAM Belyaeva M. V; Drofa A.S; Ivanov V.N; Mahally Kudsy; Untung Haryanto; R Djoko Goenawan; Dini Harsanti; Ridwan Ridwan
Jurnal Sains & Teknologi Modifikasi Cuaca Vol. 12 No. 2 (2011): December 2011
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jstmc.v12i2.2188

Abstract

Sebuah studi tentang penggunaan garam serbuk polidispersi sebagai bahan semaitelah dilaksanakan dengan memakai model 1-dimensi. Dalam studi ini pengaruhpenambahan 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.
Management of Atmosphere Resources in Hydrometeorological Disaster Mitigation F Heru Widodo; Tukiyat Tukiyat; R Djoko Goenawan
Social, Humanities, and Educational Studies (SHEs): Conference Series Vol 3, No 1 (2020): Social, Humanities, and Educational Studies (SHEs): Conference Series
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (806.084 KB) | DOI: 10.20961/shes.v3i1.45027

Abstract

Hydrometeorological disaster management in Indonesia such as floods, drought, tornadoes, etc., which occur almost every year in Indonesian territory, is carried out with structural efforts, however, it seems that the occurrence of disasters is still occurring even the intensity is increasing. To minimize the occurrence of hydrometeorological disasters, it is necessary to try a non-structural approach, namely the Weather Modification Technology (WMT). The application of WMT for hydrometeorological disaster mitigation can be used as an alternative solution in disaster risk reduction in Indonesia. The current WMT can be used to increase rainfall, to reduce rainfall, to mitigate floods and to reduce smoke due to forest and land fires. The application of WMT for additional rainfall is able to increase rainfall by about 30%, while to reduce rainfall, it can reduce rainfall by about 30-35%. This technology can be used as an integral part in the management of water resources in Indonesia.
Co-Authors Baginda Patar Sitorus Belyaeva M. V Dini Harsanti Drofa A.S F Heru Widodo Findy Renggono Florentinus Heru Widodo Ivanov V.N Jon Arifian Mahally Kudsy Mimin Karmini Ridwan Ridwan Rino Bahtiar Yahya Samsul Bahri Satyo Nuryanto Sunu Tikno Sutopo Purwo Nugroho Tukiyat Tukiyat Untung Haryanto