LA_NOURISH - Spatial Extents of Beach Nourishment Along the Louisiana Coast

Attempts to stabilize the shore can greatly influence rates of shoreline change. Beach nourishment in particular will bias rates of observed shoreline change toward accretion or stability, even though the natural beach, in the absence of nourishment, would be eroding.

Trembanis and Pilkey (1998) prepared a summary of identifiable beach nourishment projects in the Gulf Coast region that had been conducted before 1996. Those records were used to identify shoreline segments that had been influenced by beach nourishment. Supplemental information regarding beach nourishment was collected from agencies familiar with nourishment projects in the State. All records were compiled to create a GIS layer depicting the spatial extents of nourishment projects within the State.

岸线稳定措施可显著影响海岸线变化速率。其中海滩补沙（beach nourishment）的影响尤为突出：它会使观测得到的海岸线变化速率偏向淤积或稳定状态，即便未实施补沙的天然海滩本应处于侵蚀状态。
Trembanis与Pilkey（1998）汇总梳理了1996年前墨西哥湾沿岸地区已开展的可识别海滩补沙工程。研究借助上述记录，识别出受海滩补沙影响的岸线段落。此外，研究还从该州熟悉补沙工程的相关机构收集了海滩补沙的补充信息。最终整合所有记录，生成了描绘该州境内补沙工程空间范围的地理信息系统（GIS）图层。