MauiN_ST - Digital Shoreline Analysis System (DSAS) version 4.2 transects with short-term weighted linear regression rate calculations for the Maui North region from Waihee to Kuau, Hawaii.

Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion. As a result, there is an increased demand for accurate information regarding past and present shoreline changes. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project. There is no widely accepted standard for analyzing shoreline change. Existing shoreline data measurements and rate calculation methods vary from study to study and prevent combining results into state-wide or regional assessments. The impetus behind the National Assessment project was to develop a standardized method of measuring changes in shoreline position that is consistent from coast to coast. The goal was to facilitate the process of periodically and systematically updating the results in an internally consistent manner.滨海沙质海滩是广受欢迎的休闲度假胜地，周边往往分布着拥有高价值不动产的社区。尽管沿海基础设施极易遭受洪涝与侵蚀破坏，滨海开发热度仍持续攀升。正因如此，社会对精准掌握历史与当前海岸线变化（shoreline change）情况的需求日益增长。为满足这类国家层面的需求，美国地质调查局（U.S. Geological Survey, USGS）下属的海岸与海洋地质项目组，正依托“国家海岸线变化评估（National Assessment of Shoreline Change）”项目，对美国本土、阿拉斯加部分区域及夏威夷的开阔洋面沙质海岸沿线的现有可靠历史海岸线数据进行汇编整合。 目前学术界尚未形成一套被广泛认可的海岸线变化分析标准。现有海岸线数据的测量方法与岸线变化速率的计算方式因研究而异，致使不同研究的成果无法整合为全州或区域层面的评估报告。本次国家海岸线变化评估项目的核心初衷，正是研发一套跨海岸统一的标准化海岸线位置变化测量方法。其目标在于构建一套可内部统一的流程，以实现对评估结果的定期、系统性更新。