On micro-tidal continental shelves, waves have been considered the main mechanism responsible for bottom sediment resuspension. In order to study the wave-driven sediment mobility under different weather systems on the Espírito Santo Continental Shelf, located on the Eastern Brazilian shelf, the wave-driven bottom shear stresses were compared to the critical bottom shear stress. While the first was calculated from results obtained by the SWAN wave model, the latter considered the heterogeneity of the sediment grain size. The results showed that waves driven by the local action of Transient Systems and waves driven by remote influence of these systems associated with the local influence of South Atlantic Subtropical Anticyclone are responsible for the highest percentages of sediment mobility on the shelf. These waves are characterized by mean wave direction from the south and southeast, with increased significant wave height and peak periods. Moreover, these waves were associated with higher bottom shear stresses than waves from north, northeast, and east (CM1 and CM4), with the highest differences occurring on the middle and outer shelf, mainly to the south of the Doce River mouth. The spatial distribution of the grain size also strongly influenced sediment mobility patterns, delimiting a less energetic region between the Espírito Santo Bay mouth and the Costa das Algas Marine Protected Area southern limit, and a more energetic region between Costa das Algas Marine Protected Area southern limit and the northern limit of the study area. The findings herein, besides providing information relevant to marine environment management, highlight the importance of including the grain size spatial heterogeneity in studies of sediment resuspension on continental shelves.

在微潮大陆架上，波浪被认为是造成底部沉积物再悬浮的主要机制。为了研究位于巴西东部大陆架的圣埃斯皮里图大陆架在不同天气系统下波浪驱动的沉积物流动性，将波浪驱动的底部剪应力与临界底部剪应力进行了比较。虽然第一个是根据 SWAN 波模型获得的结果计算的，但后者考虑了沉积物粒度的不均匀性。结果表明，由瞬态系统的局部作用驱动的波浪和由这些系统的远程影响驱动的波浪与南大西洋副热带反气旋的局部影响相关，是大陆架上沉积物流动性百分比最高的原因。这些波浪的特点是平均波浪方向来自南部和东南部，显着波高和峰值周期增加。此外，与来自北部、东北部和东部（CM1 和 CM4）的波相比，这些波与更高的底部剪切应力相关，其中最大的差异发生在中外陆架，主要是多西河河口以南。粒度的空间分布也强烈影响了沉积物的流动模式，划定了圣埃斯皮里图湾口和科斯塔达斯阿尔加斯海洋保护区南限之间的能量较低的区域，以及科斯塔达斯阿尔加斯海洋保护区南限之间的能量较高的区域以及研究区的北界。此处的调查结果除了提供与海洋环境管理相关的信息外，