DSAS

The United States Geological Survey (USGS) offers a tool called the Digital Shoreline Analysis System (DSAS) which provides a way to analyze and measure changes in shoreline features over time. The DSAS software is a free, user-friendly desktop application that is widely used by coastal managers and researchers to examine the effects of natural processes and human activities on coastlines.

DSAS provides several different functions for analyzing coastline changes, including calculation of erosion rates, mapping of land loss and gain, and prediction of future shoreline positions. It utilizes high-precision topographic data from sources such as LiDAR measurements and aerial imagery to accurately calculate changes in shorelines over time. Users can also customize analysis parameters to fit their specific research questions and needs.

The software's output can be visualized in the form of maps, graphs, and tables, making it an effective tool for communicating results to stakeholders and decision-makers. Additionally, DSAS provides a framework for conducting repeatable and consistent analyses, allowing coastal managers and researchers to monitor long-term trends in shoreline dynamics.

DSAS is a valuable tool for coastal managers, researchers, and policymakers who seek to better understand how coastlines are changing over time and to develop strategies for addressing these changes.