长山群岛—全球变化数据大百科辞条

长山群岛（Changshan Archipelago），也称长山列岛，位于辽东半岛东南方向的黄海北部海域。地理位置为39°0′31″N-39°34′5″N，122°17′41″E-123°13′21″E。长山群岛隶属于辽宁省大连市长海县和庄河市，由石城列岛、里长山列岛和外长山列岛组成。其北部的石城列岛距离大陆3.2公里，中部的里长山列岛向西距离大陆11.71 km。长山群岛由石城列岛、里长山列岛和外长山列岛组成，共包括179个岛屿。其中以里长山列岛最大，面积88.37 km2，海岸线长275.67 km，岛屿126个；石城列岛面积38.65 km2，海岸线长88.35 km，岛屿35个；外长山列岛面积34.15 km2，海岸线长107.92 km，岛屿18个。长山群岛总面积为161.17 km2，海岸线总长为471.93 km，其中，大长山岛是长海县政府所在地。长山群岛数据集是在Google Earth卫星影像和有关大连市地图综合基础上完成，数据集存储为.kmz和.shp格式，由15个数据文件组成，数据量为2.02 MB（压缩成2个文件，827 KB）。

Changshan Archipelago, also known as Changshan Islands, is situated in the northern Yellow Sea waters southeast of the Liaodong Peninsula, with geographical coordinates ranging from 39°0′31″N to 39°34′5″N and 122°17′41″E to 123°13′21″E. Administratively, it falls under the jurisdiction of Changhai County and Zhuanghe City, Dalian, Liaoning Province. The northern Shicheng Archipelago is 3.2 km away from the mainland, while the central Li Changshan Archipelago lies 11.71 km west of the mainland. The archipelago consists of Shicheng Archipelago, Li Changshan Archipelago, and Wai Changshan Archipelago, with a total of 179 islands. Among the three sub-archipelagos, Li Changshan Archipelago is the largest, covering an area of 88.37 km², with a coastline of 275.67 km and 126 islands. Shicheng Archipelago has an area of 38.65 km², a coastline of 88.35 km and 35 islands. Wai Changshan Archipelago spans an area of 34.15 km², with a coastline of 107.92 km and 18 islands. The total area of Changshan Archipelago is 161.17 km², and the total coastline length is 471.93 km. Dachangshan Island serves as the seat of the Changhai County government. The Changshan Archipelago dataset was developed based on Google Earth satellite imagery and relevant Dalian municipal maps. It is stored in .kmz and .shp formats, consisting of 15 data files, with a total uncompressed size of 2.02 MB (compressed into 2 files with a total size of 827 KB).

搜集汇总

背景与挑战

背景概述

该数据集是一个2015年的地理矢量数据集，专注于中国辽宁省大连市长山群岛的详细地理信息，包括其地理位置、组成部分（石城、里长山和外长山群岛）、179个岛屿的分布、总面积161.17平方公里和海岸线471.93公里。数据集基于Google Earth和相关地图开发，以.kmz和.shp格式提供，包含15个文件，总大小2.02 MB，适用于测绘和全球变化研究。