PERCOBAAN MENJALANKAN REGIONAL SPECTRAL MODEL (RSM) DAN VALIDASINYA BAGI DAERAH PANTURA 21 DAN 22 DESEMBER 1998
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Abstract
(RSM) menggunakan data ECHAM. Percobaan menjalankan RSM dilakukan untuk simulasi kondisi cuaca tanggal 21 dan 22 Desember 1998 dan hasilnya dibandingkan dengan kondisi cuaca yang actual. Percobaan dilakukan dengan menggunakan interval 6 jam. RSM mampu membuat prediksi 1-3 bulan kedepan. Luaran dari model untuk area tertentu telah dianalisa dan dikalibrasi dengan menggunakan data satelit dan synop, sementara hubungan dari luaran telah dianalisa secara kualitatif dan kuantitatif. Hasil analisa menunjukkan bahwa prediksi seperti tutupan awan, curah hujan, gerakan ke atas dan surface lifted index sesuai dengan nilai aktual.
This paper discusses about the results of experimental run of the Regional Spectral Model (RSM) using the ECHAM data. The run was made to simulate conditions of 21 and 22 December 1998 and the results were compared with the actual condition. The run was made by using 6-hour intervals. The RSM is capable to make 1 to 3-month forecasts. The output of this model for the selected area were analysed and calibrated using satellite and synoptic data, while the relationship of the output was qualitatively and quantitatively analized. The analyses revealed that the results of predictions such as cloud coverage, rainfall, upmotion and the surface lifted index were in accordance to the actual values.
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