蒲台群岛-全球变化数据大百科辞条

蒲台群岛（Po Toi Islands）位于中国香港特别行政区的最南部，是南海中的一个岛屿群。它北距香港岛1.8 km，地理位置为22°9′19″N-22°11′27″N，114°14′10″E-114°18′23″E。行政区划上，蒲台群岛属于香港特别行政区的离岛区。蒲台群岛由22个岛屿和岛礁组成，主要岛屿包括蒲台岛（Po Toi Island）、螺洲（Beaufort Island）、宋岗（Song Kong）、横澜岛（Waglan Island）、墨洲（Mat Chau）和螺洲白排（Castle Rock）等。蒲台群岛中，蒲台岛的面积最大，面积为3.75 km²，海岸线长11.60 km。其次为螺洲，面积为1.21 km²，海岸线长5.34 km。蒲台群岛总面积为5.62 km²，海岸线长26.08 km。蒲台群岛数据集是在Google Earth卫星影像和中国相关地图基础上完成。数据集由17个数据文件组成，以.kmz 和.shp 数据格式存储，数据量为177 KB（压缩成2个数据文件，数据量73.5 KB）。

The Po Toi Islands, located at the southernmost tip of the Hong Kong Special Administrative Region of the People's Republic of China, are an archipelago in the South China Sea. It is 1.8 km north of Hong Kong Island, with geographic coordinates ranging from 22°9′19″N to 22°11′27″N and 114°14′10″E to 114°18′23″E. Administratively, the Po Toi Islands fall under the Islands District of the Hong Kong Special Administrative Region. Composed of 22 islands and reefs, the archipelago's main islands include Po Toi Island, Beaufort Island, Song Kong, Waglan Island, Mat Chau, and Castle Rock, among others. Among the islands in the archipelago, Po Toi Island is the largest, covering an area of 3.75 km² with a coastline of 11.60 km. The second-largest is Beaufort Island, which has an area of 1.21 km² and a coastline of 5.34 km. The total area of the Po Toi Islands is 5.62 km², with a total coastline length of 26.08 km. The Po Toi Islands dataset was developed based on Google Earth satellite imagery and relevant Chinese maps. The dataset comprises 17 data files stored in .kmz and .shp formats, with an uncompressed data size of 177 KB; when compressed into 2 data files, the size is 73.5 KB.

搜集汇总

背景与挑战

背景概述

该数据集提供了中国香港特别行政区蒲台群岛的详细地理和空间信息，包括地理位置、行政区划、岛屿组成、面积和海岸线数据。数据集基于卫星影像和地图制作，包含多种格式（如.kmz和.shp）的空间文件，适用于地理信息系统分析和全球变化研究。