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This paper presents about the use of WRF modelling to assist weather analysis for cloud seeding operation in the Citarum Catchment Area, West Java, Indonesia. In this study, WRF parameterization was carried out . The parameterized values were used to forecast precipitation during cloud seeding operation. To study the effect of variational run, WRF 3DVAR was run using GDAS data set and doppler weather radar data. The result of this study shows that precipitation can be better predicted by ingesting radar data into 3DVAR run.
Makalah ini menyajikan tentang penggunaan pemodelan dengan WRF untuk membantu analisis cuaca yang dipakai dalam operasi penyemaian awan di DAS Citarum, Jawa Barat, Indonesia. Dalam kajian ini telah dilakukan parameterisasi WRF, kemudian nilai
parameter yang diperoleh dipakai untuk mendapatkan prakiraan presipitasi selama operasi penyemaian awan. Untuk mempelajari pengaruh dari run variasional, WRF 3DVAR dijalankan dengan menggunakan data GDAS dan data radar doppler. Hasil dari studi ini menunjukkan bahwa prakiraan presipitasi yang lebih baik dapat diperoleh dengan mengasimilasikan data radar ke dalam run 3DVAR.
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