Jurnal Kelautan Nasional
PENGEMBANGAN INSTRUMEN LAGRANGIAN GPS DRIFTER COMBINED (GERNED) UNTUK OBSERVASI LAUT
Abstract
Instrumen Lagrangian telah banyak digunakan untuk pengumpulan data arus laut dan observasi di perairan Indonesia membutuhkan data yang langsung dapat diketahui (real time). Kajian ini menekankan pada pengembangan GPS Drifter Combined (GERNED) dari sisi desain dan sistem pengukuran. Hasil pengujian menunjukkan bahwa GERNED dapat digunakan di danau, perairan dangkal, dan laut terbuka. Konstruksi terdiri dari bahan akrilik, Polyethylene, dan aluminium. Desain konstruksi terdiri dari bagian atas sebagai penutup dan juga tempat sensor udara dan lampu indikator, bagian tengah yang merupakan pusat mikro-kontroller, catu daya, sensor-sensor, penyimpanan data manual dan pengiriman data via satelit. Biaya yang dibutuhkan untuk membuat alat ini sekitar 15.000.000 (lima belas juta rupiah) dengan biaya terbesar adalah kontrol pengiriman data. Pada bagian bawah merupakan baling-baling statik. Pengujian yang dilakukan di laboratorium untuk melihat posisi lokasi sudah menunjukkan data yang sama dengan data lapangan sedangkan untuk pengujian lapangan yang dilakukan di pulau Untung Jawa menunjukkan bahwa arah dan pergerakan GERNED sama dengan pergerakan float tracking umumnya.
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DOI: http://dx.doi.org/10.15578/jkn.v12i3.6323
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