PENGEMBANGAN METODE DUAL-FREKUENSI UNTUK MENGAMATI STRUKTUR VERTIKAL RAINDROP SIZE DISTRIBUTION (DSD) DI KOTO TABANG

Authors

  • Mutya Vonnisa Universitas Andalas, Indonesia

DOI:

https://doi.org/10.25077/jif.6.2.52-58.2014

Abstract

Metode untuk mengamati struktur vertikal parameter mikrofisika hujan yang dikenal dengan DSD telah dikembangkan menggunakan data Equatorial Atmosphere Radar (EAR) dan Boundary Layer Radar (BLR) di Koto Tabang, Sumatera Barat, Indonesia. Spektrum hujan dari BLR yang merupakan fungsi DSD dimodelkan dengan modifikasi fungsi gamma dan spektrum turbulen atmosfir dari EAR dimodelkan dengan fungsi Gauss. Parameter DSD dan turbulen didapatkan dengan menggunakan metode non-linear least square fitting. Data dari Joss-Wadvogel Disdrometer (JD) digunakan untuk memvalidasi hasil yang didapatkan dari data radar. Hasil penelitian memperlihatkan bahwa metode dual-frekuensi lebih akurat dibandingkan dengan metode single-frekuensi. Hal itu ditunjukkan oleh hasil fitting spektrum hujan dari metode dualfrekuensi lebih tinggi dan jelas dibandingkan metode single-frekuensi. Selain itu DSD yang dihasilkan oleh metode dual-frekuensi lebih mendekati DSD dari JD dibandingkan dengan singlefrekuensi.

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References

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Published

2014-09-15

How to Cite

Vonnisa, M. (2014). PENGEMBANGAN METODE DUAL-FREKUENSI UNTUK MENGAMATI STRUKTUR VERTIKAL RAINDROP SIZE DISTRIBUTION (DSD) DI KOTO TABANG. JURNAL ILMU FISIKA, 6(2), 52–58. https://doi.org/10.25077/jif.6.2.52-58.2014

Issue

Vol. 6 No. 2 (2014): September 2014

Section

Riset Artikel

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