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All Journal Jurnal Sains & Teknologi Modifikasi Cuaca Jurnal Aplikasi Statistika & Komputasi Statistik
Rezky Yunita
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Computer Science & IT Decision Sciences, Operations Research & Management Education Mathematics

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PREDICTION OF CUMULONIMBUS (CB) CLOUD BASED ON INTEGRATED FORECAST SYSTEM (IFS) OF EUROPEAN MEDIUM-RANGE WEATHER FORECAST (ECMWF) IN THE FLIGHT INFORMATION REGION (FIR) OF JAKARTA AND UJUNG PANDANG Achmad Fahruddin Rais; Fani Setiawan; Rezky Yunita; Erika Meinovelia; Soenardi Soenardi; Muhammad Fadli; Bambang Wijayanto
Jurnal Sains & Teknologi Modifikasi Cuaca Vol. 21 No. 2 (2020): December 2020
Publisher : BPPT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jstmc.v21i2.4100

Abstract

This study was focused on cumulonimbus (Cb) cloud prediction based on Integrated Forecast System (IFS) European Medium-Range Weather Forecast (ECMWF) model in the Flight Information Region (FIRs) Jakarta and Ujung Pandang. The Cb cloud prediction was calculated using convective cloud cover (CC) of the precipitation product. The model predictability was examined through categorical verification. The Cb cloud observation was based on brightness temperature (BT) IR1 and brightness temperature difference (BTD) IR1-IR2. The results showed that CC 50%' predictor was the best predictor to estimate the Cb cloud. The study in the period other than 2019 is suggested for the next research because Indian Ocean Dipole (IOD) is extreme that may affect the Cb cloud growth in the study area.
KARAKTERISTIK SPASIOTEMPORAL ANGIN KENCANG DI PULAU SULAWESI BERBASIS MODEL REANALISIS ERA5 Rais, Achmad Fahruddin; Rezky Yunita; Hijrah Kule Musgamy; Rahmat Tauladani; Ahmad Kosasih
Jurnal Aplikasi Statistika & Komputasi Statistik Vol 15 No 1 (2023): Journal of Statistical Application and Computational Statistics
Publisher : Politeknik Statistika STIS

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Abstract

Pola spasiotemporal angin kencang di Pulau Sulawesi dieksplorasi dalam tulisan ini menggunakan data reanalisis ERA5 periode 1979-2020. Metode yang digunakan adalah roteted empirical orthogonal function (REOF) dan fourier harmonik. Hasil yang didapatkan adalah bahwa frekuensi dan magnitudo kecepatan angin terbesar berada di Sulawesi Selatan dan sebagian Sulawesi Tenggara dengan puncak di bulan Agustus dan Januari, pola dominan lainnya adalah di Sulawesi Utara dan Gorontalo dengan pola puncak yang sama yaitu Agustus dan Januari dan di pegunungan tengah Sulawesi dengan puncak pada bulan Januari.
Co-Authors Achmad Fahruddin Rais Ahmad Kosasih Bambang Wijayanto Erika Meinovelia Fani Setiawan Hijrah Kule Musgamy Muhammad Fadli Rahmat Tauladani Rais, Achmad Fahruddin Soenardi Soenardi