High-Resolution Water Body Extraction Dataset Based on Gaofen Satellite Imagery

This dataset is based on Gaofen satellite imagery and is specifically designed for urban built-up area water body extraction and subsequent rapid water quality assessment tasks. It contains high-resolution (2-meter) satellite imagery data along with corresponding annotation information. The dataset covers water body areas in multiple districts of Shenzhen, with the aim of supporting water body extraction and water quality analysis research. The dataset consists of the following main components:Imagery Data: The dataset includes high-resolution satellite imagery of urban built-up areas, with a broad coverage range and high spatial resolution (2 meters). Each image has been pre-processed to remove clouds, shadows, and other influencing factors, making it suitable for water body extraction and other remote sensing analysis tasks.Water Body Annotations: The dataset provides manually annotated water body areas for each image, with high annotation accuracy, intended to offer precise training and testing data for water body extraction tasks.Urban Environmental Features: The dataset includes environmental feature information of various urban built-up areas (e.g., terrain, vegetation cover, urban buildings, etc.), which aids in water quality analysis and model training. By incorporating geographical detectors, it analyzes the impact of environmental factors on water quality changes, providing multi-dimensional tools for water quality assessment.Data Format: The imagery data in the dataset is stored in PNG format, while the annotation data is also provided in PNG format.Data Usage Instructions: The dataset supports various research tasks, including water body extraction, water quality assessment, and urban water environment analysis.本数据集基于高分卫星影像（Gaofen satellite imagery）构建，专为城市建成区水体提取及后续快速水质评估任务设计。数据集包含2米高分辨率卫星影像数据及对应标注信息，覆盖深圳多个行政区的水体区域，旨在为水体提取与水质分析相关研究提供支撑。 本数据集主要包含以下组成部分： 1. 影像数据：包含城市建成区高分辨率卫星影像，覆盖范围广、空间分辨率达2米。所有影像均已完成去云、去阴影及其他干扰因素的预处理工作，可直接用于水体提取及其他遥感分析任务。 2. 水体标注：为每幅影像提供人工标注的水体区域，标注精度优异，可为水体提取任务提供精准的训练与测试数据。 3. 城市环境特征：包含各类城市建成区的环境特征信息（如地形、植被覆盖、城市建筑等），可辅助水质分析与模型训练。本数据集结合地理探测器（Geographical Detectors），分析环境因子对水质变化的影响，为水质评估提供多维度分析工具。 数据格式：数据集内的影像数据以PNG格式存储，标注数据同样采用PNG格式提供。 数据使用说明：本数据集可支撑多项研究任务，包括水体提取、水质评估及城市水环境分析。