Historical charts, soundings and surfaces (DEMs) of western Victoria, Australia

This data repository hosts the georeferenced nautical charts, digitised soundings, converted soundings (Australian Height Datum 1994), surface masks and interpolated surfaces (DEMs) of seven historical surveys conducted in western Victoria during the 19th century. These charts produced by H. J. Stanley, J. Barrow and J. B Mason for Portland Bay (1854, 1869 and 1972), Port Fairy (1870), Lady Bay-Warrnambool (1870) and Apollo Bay (1868 and 1889), were obtained in digital format from the State Library Victoria (www.slv.vic.gov.au). For specific characteristics of individual charts refer to Table 1. These nautical charts provide an unique historical perspective of the coast during the time of the surveys. These datasets were used by the author and collaborators to understand sedimentary dynamics and quantify human alterations in the coastal zone, by comparing their surfaces to contemporary Multibeam Echosounding (MBES) bathymetry and Light Detection and Ranging (LiDAR) data. The georeferenced nautical charts and interpolated surfaces are in Geotiff format, and the digitised soundings, converted soundings and surface masks are in shapefile format. Files are compressed and organised in sub-folders inside specific charts.本数据集仓库收纳了19世纪于维多利亚州西部开展的7项历史勘测所产生的地理配准海图、数字化测深数据、转换后测深数据（澳大利亚1994年高程基准，Australian Height Datum 1994）、表面掩膜以及插值表面（数字高程模型，Digital Elevation Model, DEMs）。这批海图由H·J·斯坦利、J·巴罗及J·B·梅森绘制，覆盖波特兰港（1854、1869、1972年）、仙女港（1870年）、莱迪湾-瓦南布尔（1870年）以及阿波罗湾（1868、1889年），以数字格式从维多利亚州立图书馆（www.slv.vic.gov.au）获取。可参考表1了解单张海图的具体参数特征。这批海图为勘测时期的海岸带提供了独一无二的历史视角。研究团队（作者及其合作者）通过将这批数据集的表面数据与现代多波束测深（Multibeam Echosounding, MBES）水深数据及激光雷达（Light Detection and Ranging, LiDAR）数据进行对比，以此解析海岸沉积动力过程并量化沿海区域的人类活动改造程度。地理配准海图及插值表面数据采用GeoTIFF格式存储，数字化测深数据、转换后测深数据及表面掩膜则采用Shapefile格式存储。所有文件均已压缩，并按单张海图分类存储于对应的子文件夹中。