HydroLAKES v1.0

Lakes are key components of biogeochemical and ecological processes, thus knowledge about their distribution, volume and residence time is crucial in understanding their properties and interactions within the Earth system. The HydroLAKES database was designed as a digital map repository to include all lakes with a surface area of at least 10 ha with a total surface area of 2.67 × 106 km2 (1.8% of global land area), a total shoreline length of 7.2 × 106 km (about four times longer than the world’s ocean coastline) and a total volume of 181.9 × 103 km3 (0.8% of total global non-frozen terrestrial water stocks). HydroLAKES aims to be as comprehensive and consistent as possible at a global scale and contains both freshwater and saline lakes, including the Caspian Sea, as well as human-made reservoirs and regulated lakes. Users can look for alternative datasets like ReaLSAT, GLOBathy etc.

湖泊是生物地球化学与生态过程的关键组成部分，因此掌握其分布、容积及湖水停留时间，对于理解其属性与地球系统内的相互作用至关重要。HydroLAKES数据库（HydroLAKES）作为数字地图资源库构建而成，收录所有表面积不小于10公顷的湖泊，其总表面积达2.67×10^6平方千米（占全球陆地面积的1.8%），总岸线长度为7.2×10^6千米（约为全球海洋海岸线总长的4倍），总容积达181.9×10^3立方千米（占全球非冰冻陆地水总储量的0.8%）。该数据库旨在全球尺度下尽可能实现全面性与一致性，涵盖淡水湖与咸水湖（包括里海），同时包含人工水库与受调控湖泊。用户可选取ReaLSAT、GLOBathy等替代数据集。

搜集汇总

背景与挑战

背景概述

HydroLAKES v1.0是一个全球湖泊数据库，旨在全面记录面积至少10公顷的湖泊，包括淡水和咸水湖泊、人工水库和受调控湖泊，覆盖全球范围。数据集提供了湖泊的总面积、海岸线长度和体积等关键统计信息，用于支持地球系统研究和生态过程分析。数据发布于2025年，基于2021年的数据，具有高空间分辨率（3弧秒），并采用开放许可（CC0 1.0）便于访问和使用。