文章基本信息

标题：Three-dimensional (3d) Gis-based Topographically Morphological Analysis and Dynamical Visualization of Assateague Island National Seashore
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作者：M. Xie ; G. Zhou
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2004
卷号：XXXV Part B7
页码：358-368
出版社：Copernicus Publications
摘要：The dynamic and complex nature of shorelines and beach topographic morphology present numerous challenges to geospatial analysis. Displaying and visualizing changes in these environments requires integration of knowledge on spatial data characterization as well as scientific understanding of the underlying coastal processes. This paper presents a method to visualize and analyze topography and topographic changes on Assantage Island Nation Seashore (AINS), which is located along a 37-mile stretch of Assateague Island National Seashore in Eastern Shore, VA. The DEMS data sets from the NASA ATM LIDAR data acquired from 1996 through 2000 for various time intervals, e.g., year-to-year, season-to-season, date-to-date, and a four year (1996-2000), have been created. The spatial patterns and volumetric amounts of erosion and deposition of each part on a cell-by-cell basis were calculated. A 3D dynamic display system using ArcView Avenue for visualizing dynamic coastal landforms has been developed. The system was designed into five functional modules: Dynamic Display, Analysis, Chart analysis, Output, and Help. The Display module includes five types of displays: Shoreline display, Shore Topographic Profile, Shore Erosion Display, Surface TIN Displa y, and 3D Scene Display. Visualized data include rectified and co-registered multispectral Landsat digital image and NOAA/NASA ATM LIDAR data. The system is demonstrated using multitemporal digital satellite and LIDAR data for displaying changes on the Assateague Island National Seashore, Virginia. The analyzed results demonstrated that a further understanding to the study and comparison of the complex morphological changes that occur naturally or human-induced on barrier islands is required
关键词：Three-dimensional; DEM/DTM; LIDAR; GIS; Coast; Sea; Visualization