Global inventory of glacial lakes (GIGLak)

Climate change accelerates the extensive retreat of glaciers, leading to the widespread development of glacial lakes. A holistic picture on the spatial distribution of glacial lakes worldwide is crucial for tracking the outburst flood hazards. By employing a semi-automated mapping approach and rigorous quality control, this study inventories global glacial lakes (≥0.01 km²) worldwide (the ice cap/sheet of Antarctic and Greenland excluded). The evaluation result shows that this global glacial lake data has an overall accuracy of 89.37% and 91.42% in number and area, respectively.气候变化加速了冰川的大规模消退，进而推动全球冰湖（glacial lakes）广泛发育。全面掌握全球冰湖的空间分布格局，对于监测冰湖溃决洪水灾害风险至关重要。本研究采用半自动化制图方法与严格的质量管控流程，构建了全球范围（不含南极与格陵兰冰盖/冰帽）、面积≥0.01 km²的冰湖编目数据集。评估结果表明，该全球冰湖数据集在数量与面积维度上的总体精度分别为89.37%与91.42%。