Potentially navigable rivers in South America

These two data-sets contain potentially navigable rivers for small and medium-sized boats in South-America depending on the topography, rainfall and potential evapotranspiration. Hence, it is an approximation of the location of navigable rivers, not an actual map of hidroways. Navigability is defined by the extent of a river which in this case (1) for small boats accounts to ~5-15 meters minimum extent and (2) for medium-sized boats ~30-40m meters minimum extent. The model data was parametrized and validated with land-cover data from high-resolution satellite images. Please see the full description of how the data-sets was created in the attached PDF File.两套数据集涵盖了南美洲受地形、降雨量与潜在蒸散量影响、可供中小型船舶通行的潜在通航河道。因此本数据集仅为通航河道位置的近似估算结果，而非真实的航道地图。通航标准以河道宽度界定：本数据集中，(1) 小型船舶通行要求河道最小宽度约5至15米；(2) 中型船舶通行要求河道最小宽度约30至40米。本模型数据集基于高分辨率卫星影像获取的土地覆被数据进行参数化配置与验证。有关本数据集完整的构建流程，请参阅附件中的PDF文档。