Aplikasi Filter EEMD Untuk Meningkatkan Kualitas Data VLF-EM Studi Kasus: Estimasi Lokasi Gorong-Gorong Di Kampus ITS Surabaya
Abstract
Eksplorasi bawah permukaan menggunakan Very Low Frequency Electromagnetics (VLF-EM) telah dilakukan untuk menentukan rongga bawah tanah (gorong-gorong). Untuk mempertajam hasil eksplorasi dan mereduksi gangguan diaplikasikan filter EEMD. Data hasil filter diinterpretasikan secara kualitatif menggunakan filter Karous-Hjelt. Hasil Interpretasi filter Karous-Hjelt menunjukkan bahwa anomali bawah permukaan terdapat pada 25-35 meter dari titik mengukuran awal dan kedalaman 3-6 meter. Anomali tersebut menyatakan lokasi gorong-gorong di lokasi pengukuran
Keywords
Filter; EEMD; Culverts
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DOI: http://dx.doi.org/10.12962/j25023659.v4i3.4493
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