Abstract Geomorphological features and sparse visual wave measurements, presented in previous works, point out to the possible existence of alongshore wave energy gradients over the Southern Brazilian Shelf (SBS). After describing the two numerical models utilized and the model grids and settings, the present study evaluated the proposed validation of the basin-scale results against orbital altimetry and the regional-scale results against the two available wave-buoy data, discussing the extent to which the model reproduced local reality. The basin-scale model results of significant wave height could be considered as in good agreement with observations, presenting remarkable similarities with observed altimetry. Regarding the regional-scale modeling, both significant wave height and peak wave periods were considered as in good agreement with observations. The peak wave directions, however, were classified as in poor agreement, once the ESE waves were erroneously reproduced as E. Increased spatial resolution certainly played a role, but it was the lowering of bottom friction that represented the major improvement in the coastal grid simulations.

中文翻译：

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巴西南部大陆架的海洋风波气候学。第一部分：问题展示和模型验证

摘要 在以前的工作中提出的地貌特征和稀疏的视觉波测量表明，在巴西南部大陆架 (SBS) 上可能存在沿岸波能量梯度。在描述了使用的两个数值模型以及模型网格和设置之后，本研究评估了针对轨道高度测量的盆地尺度结果和针对两个可用波浪浮标数据的区域尺度结果的拟议验证，讨论了该模型再现了当地的现实。可以认为显着波高的盆地尺度模型结果与观测结果吻合较好，与观测高度有显着相似性。关于区域尺度建模，显着波高和波峰周期都被认为与观测结果非常吻合。然而，一旦 ESE 波被错误地再现为 E，峰值波方向就被归类为不一致。 空间分辨率的增加肯定起了作用，但底部摩擦力的降低代表了沿海网格模拟的主要改进.