The impact of biofouling is investigated on the accuracy of the records of a wave buoy moored in shallow water. The effects of biofouling on the vertical and horizontal motions of the buoy are analyzed through check factors. Regarding the heave motion, the most critical frequencies of the power spectrum are identified, and selected to run CFD simulations to further evaluate the hydrodynamic impact of heavy biofouling. The time evolution of check factors allowed identifying the increase of accumulated mass, which became more critical in the last two months of the period of observation, associated with the modification of heave, surge or sway, and pitch or roll signals. The top high frequencies with periods below 3s are the most affected, with attenuation of the vertical motion. The spectrum at mid frequencies up to 15s is not modified and a small effect at low frequencies is reported. The impact of biofouling on the bulk wave parameters derived from the heave motion is minimal. Small differences of 0.4% up to 1.7% are found for significant wave height, associated with underestimation of short-length waves, and no difference was noticed on the estimation of peak period.

研究了生物污损对停泊在浅水中的波浪浮标记录准确性的影响。通过检查因素分析了生物污染对浮标垂直和水平运动的影响。关于升沉运动，功率谱的最关键频率被识别，并被选择进行CFD模拟以进一步评估重生物污染的水动力影响。检查因素的时间演变可以识别累积质量的增加，这在观察期的最后两个月变得更加关键，这与起伏，喘振或摇摆，俯仰或侧倾信号的变化有关。周期低于3s的最高高频受影响最大，垂直运动衰减。直到15s的中频频谱都没有改变，据报道低频影响很小。生物污染对从升沉运动得出的体波参数的影响是最小的。对于显着的波高，发现有0.4％到1.7％的小差异，与短波的低估相关，在峰值周期的估算中没有发现差异。