Tesis Analisis Pola Distribusi Sebaran Awan Konvektif Menggunakan Metode Red Green Blue (RGB) Pada Satelit Himawari-9 Di Wilayah Pesisir Teluk Cenderawasih Tahun 2023

Sampe, Eusebio Andronikos (2025) Tesis Analisis Pola Distribusi Sebaran Awan Konvektif Menggunakan Metode Red Green Blue (RGB) Pada Satelit Himawari-9 Di Wilayah Pesisir Teluk Cenderawasih Tahun 2023. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Teluk Cenderawasih merupakan salah satu teluk dengan letaknya berada dekat dengan garis ekuator, yang dominan memiliki pola hujan lokal. Keadaan ini dimungkinkan akibat adanya dominan pertumbuhan awan konvektif di wilayah pesisir teluk Cenderawasih. Awan-awan konvektif tersebut yang sering dikaitkan dengan dengan cuaca buruk seperti badai petir, hujan lebat, angin kencang, dan fenomena lainnya. Pemanfaatan satelit meteorologi dalam menganalisis awan konvektif, sudah dilakukan oleh BMKG dalam mengamati sebaran awan konvektif real time menggunakan satelit Himawari. Peneliti mengkaji penelitian, yaitu menganalisis pola distribusi sebaran awan konvektif menggunakan satelit Himawari-9 di wilayah pesisir teluk Cenderawasih. Metode penelitian yang digunakan adalah metode RGB (Red Green Blue) pada perangkat lunak SATAID. Hasil penelitian pola distribusi sebaran awan konvektif menunjukkan bahwa suhu puncak awan berada pada kisaran (-50) – (-70) 0C, dengan arah pergerakan awan konvektif bergerak dari arah timur ke barat. Pada periode Juni 2023, menunjukkan bahwa posisi dominan terjadi pada wilayah pesisir Manokwari, Biak, Serui dan Nabire serta waktu pertumbuhan awan konvektif terjadi pada malam hari hingga dini hari. Fase tumbuh, fase matang dan fase peluruhan untuk parameter ketinggian awan, histogram persentase suhu puncak awan dan cakupan jarak awan, pada poeriode Juni 2023 lebih dominan daripada periode Nopember 2023. Curah hujan tertinggi dan sebaran awan konvektif dominan terdapat pada wilayah pesisir bagian selatan, terlihat adanya sktruktur awan konvektif vertikal yang tinggi dan tebal pada periode Juni 2023. Hubungan sebab akibat variabel sebaran awan konvektif dan curah hujan menunjukkan korelasi dan koherensi yang kuat pada zona rendah dan menengah serta arah panah vektor fase dominan arah kanan atas dan kanan bawah (kuadran I dan II)hubungan in-phase. Pola hujan lokal dominan terjadi pada pertengahan tahun mengakibatkan musim peralihan antar musim lebih lama dan fluktuatif, musim tidak dibagi jelas, hanya ada variasi lemah intensitas curah hujan, yang sangat berdampak positif maupun negatif pada masyarakat, lingkungan sektor pertanian dan perikanan.
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Cenderawasih Bay is one of the bays located close to the equator, which dominantly has a local rain pattern. This situation is possible due to the dominant growth of convective clouds in the coastal area of Cenderawasih Bay. These convective clouds are often associated with bad weather such as thunderstorms, heavy rain, strong winds, and other phenomena. The use of meteorological satellites in analyzing convective clouds has been carried out by BMKG in observing the distribution of real time convective clouds using the Himawari satellite. Researchers studied the research, namely analyzing the distribution pattern of convective cloud distribution using the Himawari-9 satellite in the coastal region of Cenderawasih Bay. The research method used is the RGB (Red Green Blue) method on SATAID software. The results of the research on the distribution pattern of convective clouds show that the peak temperature of the clouds is in the range of (-50) to (-70) °C, with the convective clouds moving from east to west. During the June 2023 period, the dominant position was observed in the coastal areas of Manokwari, Biak, Serui, and Nabire, with convective cloud growth occurring from evening until early morning. The growth phase, mature phase, and decay phase for cloud height parameters, the histogram of peak cloud temperature percentages, and cloud coverage distance were more dominant in June 2023 than in November 2023. The highest rainfall and dominant convective cloud distribution are found in the southern coastal areas, with the presence of tall and thick vertical convective cloud structures during the June 2023 period. The cause-and-effect relationship between convective cloud distribution and rainfall shows strong correlation and coherence in the low and middle zones, with dominant phase vector arrows pointing upward to the right and downward to the right (quadrants I and II) in an in-phase relationship. The dominant local rainfall pattern occurs in the middle of the year, resulting in a longer and more fluctuating transitional season between
seasons. The seasons are not clearly defined, with only weak variations in rainfall intensity, which has both positive and negative impacts on society, the environment, and the agricultural and fisheries sectors.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Kata Kunci : awan konvektif., metode RGB., SATAID., teluk Cenderawasih Keywords: convective clouds, RGB method, SATAID, Cenderawasih Bay
Subjects:	Q Science > QC Physics > QC871 Meteorology--Observations.
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geomatics Engineering > 29101-(S2) Master Thesis
Depositing User:	Eusebio Andronikos Sampe
Date Deposited:	14 Jul 2025 06:52
Last Modified:	14 Jul 2025 06:52
URI:	http://repository.its.ac.id/id/eprint/119692

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