Coastline Extractor Underlying Data

This copy of the Coastline Extractor data was downloaded on April 22, 2025 before the Coastline Extractor map viewer (https://noaa.maps.arcgis.com/apps/webappviewer/index.html?id=2be2d19544414752b3088b81ae3f70dd) was decommissioned on May 5, 2025. Two polygons were drawn that attempted to cover all available data for all the continents with some overlap for continuity. These are represented as zipfolder and zip folder-2 in the directory. The data were downloaded with the "coastline high resolution" option. See https://web.archive.org/web/20250502202536/https://noaa.maps.arcgis.com/apps/webappviewer/index.html?id=2be2d19544414752b3088b81ae3f70dd for an example of what the map viewer looked like on May 2, 2025 before being removed. Note that download functionality might not work through the Wayback Machine archive version of the viewer.

本份海岸线提取器（Coastline Extractor）数据集下载于2025年4月22日，其时该配套地图查看器尚未于2025年5月5日停用。该地图查看器的访问地址为：https://noaa.maps.arcgis.com/apps/webappviewer/index.html?id=2be2d19544414752b3088b81ae3f70dd。本次数据采集绘制了两个多边形区域，以覆盖所有大洲的全部可用数据，并保留部分重叠区域以保障数据连续性。两份数据集分别以目录下的zipfolder与zip folder-2压缩包形式存储。本次下载采用了"高分辨率海岸线"选项。可通过互联网档案馆（Wayback Machine）存档链接https://web.archive.org/web/20250502202536/https://noaa.maps.arcgis.com/apps/webappviewer/index.html?id=2be2d19544414752b3088b81ae3f70dd查看该地图查看器于2025年5月2日停用前的界面样式。请注意，通过该存档版本的查看器可能无法正常使用下载功能。