Aplikasi Metode JONSWAP untuk Pengukuran Tinggi dan Periode Gelombang di Teluk Tomini, Kabupaten Poso, Tahun 2025

Riwan Fridolin Kelo (Universitas Sintuwu Maroso)

Manufaktur: Publikasi Sub Rumpun Ilmu Keteknikan Industri
Vol. 4 No. 2 (2026): Manufaktur : Publikasi Sub Rumpun Ilmu

This study aimed to analyze wave height and wave period in Tomini Bay, Poso Regency, using the Joint North Sea Wave Project (JONSWAP) method. The data used consisted of wind direction and wind speed data for February 2025 obtained from the BMKG Kasiguncu Meteorological Station, Poso. The research stages included wind rose analysis, effective fetch calculation, wind speed conversion, and wave height and period analysis using the JONSWAP method. The results showed that the dominant wind direction came from the north with a percentage of approximately 71% and a maximum wind speed of 11.66 knots. The effective fetch length obtained was 205.05 km. The JONSWAP calculation results indicated wave heights ranging from 0.32 m to 1.60 m with wave periods between 3.61 seconds and 7.37 seconds. Meanwhile, direct field measurements showed an average wave height of 0.12 m with a period of 2.59 seconds. The difference in results occurred because Tomini Bay is a semi-enclosed water area that reduces wave energy before reaching the coast.