MEUTHIA SALSABILA, . (2024) ANALISIS DATA REFLEKTIVITAS JARINGAN RADAR HUJAN SANTANU TERHADAP DISDROMETER. Sarjana thesis, UNIVERSITAS NEGERI JAKARTA.
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Abstract
Penelitian ini menganalisis data reflektivitas radar hujan Santanu menggunakan disdrometer dari Badan Riset dan Inovasi Nasional Bandung, selama Bulan November hingga Desember 2021. Data meliputi keterangan waktu, reflektivitas, dan presipitasi. Pengolahan data radar dilakukan menggunakan perangkat lunak MATLAB, sementara data disdrometer disesuaikan dengan keterangan waktu. Koefisien determinasi (R²) dari persamaan linier koreksi adalah 0.4645. Rata-rata kuadrat galat antara reflektivitas Santanu hasil koreksi dan disdrometer adalah 139.06, dengan akar rata-rata kuadrat sebesar 11.8. Koreksi kurang optimal disebabkan oleh perbedaan area pengukuran: radar mencakup 120 m² (1 piksel), sedangkan disdrometer hanya untuk satu titik lokasi. Untuk meningkatkan akurasi, perlu pemasangan beberapa disdrometer di lokasi yang mewakili piksel radar berbeda. Analisis juga menunjukkan bahwa peningkatan diameter hujan meningkatkan reflektivitas dan presipitasi. Metode Marshall Palmer menggambarkan reflektivitas terhadap variabel perhitungan dari data radar hujan Santanu dan disdrometer. Penelitian ini menekankan pentingnya metode pengukuran yang konsisten untuk menghasilkan data akurat dan meningkatkan keandalan prediksi hujan. Kata Kunci: Reflektivitas, Santanu, Disdrometer, Radar, Marshall Palmer *** This research analyze Santanu rain radar reflectivity data using disdrometer from Bandung National Research and Innovation Agency, from November to December 2021. The data includes information on time, reflectivity and precipitation. Radar data processing is carried out using MATLAB software, while disdrometer data is adjusted to the time information. The coefficient of determination (R²) of the corrected linear equation is 0.4645. The mean square error between the corrected Santanu reflectivity and the disdrometer is 139.06, with a root mean square of 11.8. The suboptimal correction is caused by the difference in measurement area: the radar covers 120 m² (1 pixel), while the disdrometer only covers one location point. To improve accuracy, it is necessary to install multiple disdrometers at locations representing different radar pixels. Analysis also shows that increasing raindrop diameter increases reflectivity and precipitation. The Marshall Palmer method describes reflectivity against calculated variables from Santanu rain radar and disdrometer data. This research emphasises the importance of consistent measurement methods to produce accurate data and increase the reliability of rainfall predictions. Keywords: Reflectivity, Santanu, Disdrometer, Radar, Marshall Palmer
Item Type: | Thesis (Sarjana) |
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Additional Information: | 1) Riser Fahdiran, M.Si. ; 2) Dr. Asif Awaludin, ST., MT. |
Subjects: | Sains > Sains, Ilmu Pengetahuan Alam Sains > Fisika Sains > Ilmu Bumi Teknologi dan Ilmu Terapan > Teknologi (umum) |
Divisions: | FMIPA > S1 Fisika |
Depositing User: | Users 24858 not found. |
Date Deposited: | 16 Aug 2024 05:05 |
Last Modified: | 16 Aug 2024 05:05 |
URI: | http://repository.unj.ac.id/id/eprint/50009 |
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