2002 Post-Tropical Storm Fay University of Texas Lidar-Derived Dune Crest, Toe and Shoreline

The Storm-Induced Coastal Change Hazards component of the National Assessment of Coastal Change Hazards project focuses on understanding the magnitude and variability of extreme storm impacts on sandy beaches. Lidar-derived beach morphologic features such as dune crest, toe and shoreline help define the vulnerability of the beach to storm impacts. This dataset defines the elevation and position of the seaward-most dune crest and toe and the mean high water shoreline derived from the 2002 University of Texas Post-Fay lidar survey. Beach width is included and is defined as the distance between the dune toe and shoreline along a cross-shore profile. The beach slope is calculated using this beach width and the elevation of the shoreline and dune toe.

国家海岸变化灾害评估项目中的风暴诱发海岸变化灾害研究组分，旨在探究极端风暴对沙质海滩的影响程度与变异性。通过激光雷达（Lidar）反演得到的沙丘脊线、坡脚及海岸线等海滩地貌特征，可用于明确海滩抵御风暴影响的脆弱性。本数据集明确了2002年德克萨斯大学费伊飓风后激光雷达勘测所得的向海侧最外侧沙丘脊线、坡脚，以及平均高潮位海岸线的高程与位置信息。数据集同时包含海滩宽度，其定义为沿垂直岸线剖面测得的沙丘坡脚与海岸线之间的距离；海滩坡度则基于该海滩宽度，结合海岸线与沙丘坡脚的高程计算得到。