Coastline of the Kingdom of Spain (INSPIRE)

Shoreline extracted from the electronic nautical charts (ENC) of purpose 4 and 5 of navigation published by the Hydrographic Institute of the Navy (IHM) of Spain. A scale of 1:50000 is considered as a resolution base although there are areas where the resolution can reach 1:22000. Royal Decree 1545/2007, of 23 November, regulating the National Cartographic System establishes in its article 20 that they will have to register in the RCC among others the straight baselines and the limits corresponding to the Continental Shelf. Likewise, in Article 22, point 2c, the IHM is responsible for referring to the RCC those cartographic technical aspects necessary for the representation of straight baselines and maritime delimitations once approved by the Ministry of Foreign Affairs and Cooperation. It should be noted that, in general, the geometry with which each line appears inscribed in the RCC has a geometric uncertainty due, mainly to its antiquity, since they were obtained from mapping of very small scales and also in ED50 datum, forcing its transformation to the ETRS89 datum. Available in GML format through the download services WFS (INSPIRE), and in shapefile format in the CNIG Download Center. For any clarification contact [e-mail]本数据集提取自西班牙海军水文局（IHM）发布的航行用第4、第5类电子海图（ENC）中的岸线。基准分辨率设定为1:50000比例尺，部分区域分辨率可达1:22000。2007年11月23日发布的《第1545/2007号皇家法令》对国家制图系统作出规范，其第20条明确规定，直线基线与大陆架界限等内容须在国家制图登记册（RCC）中进行登记；该法令第22条第2款c项同时要求，西班牙海军水文局（IHM）需在经外交与合作部批准后，向国家制图登记册（RCC）提交用于绘制直线基线与海洋划界的必要制图技术事项。需特别指出的是，总体而言，登记于国家制图登记册（RCC）中的各线条几何形态存在几何不确定性，这主要源于其年代久远——相关数据源自极低比例尺的测绘成果，且采用ED50坐标系，需转换至ETRS89坐标系方可使用。该数据集可通过Web要素服务（WFS，INSPIRE）下载服务获取地理标记语言（GML）格式数据，亦可在西班牙国家地理信息中心（CNIG）下载中心获取形状文件（Shapefile）格式数据。如有任何疑问，请联系[e-mail]