Indonesia Conference Directory

Producing better wind wave numerical forecasting products by utilizing real time ocean wave observation data is still a challenge for marine meteorologist. The altimeter sensors installed on the Sentinel SAR/1B and JASON-3 satellites have the ability to do spectral measurement to determine the wave energy with the growth rate of wind waves frequency that will be formed. This study examines the verification and evaluation of wind waves from WaveWatch-3 model (Ina-Waves Products) by comparing wave spectral of Sentinel SAR/1B and JASON-3 satellites during Ina-PRIMA 2018 research in June with the wind waves footprint-directional wave-spectral technique. The output of WaveWatch-3 model based on a comparison of numerical Gaussian swell spectrum shows that the wave growth pattern is dominantly in the frequency of 0.11 - 0.34 Hz with an accuracy of swell formation of 83% from Sentinel SAR/1B satellite observations. The results of Ina-Waves model from the WaveWatch-3 model output with deep water waves along the shipping tracks and 5 buoy points show that the accuracy of significant wave height at 85% and the error rate is 0.45 meters from the Sentinel SAR/1B. Correction of the comparison of Sentinel SAR/1B and JASON-3 satellites resulted in a correction of Ina-Waves products of 0.40 meters. This result becomes a correction of input data towards the development of numerical surface waves models in Indonesian waters.