Satellite-derived estimate of artificial lakes in the Phoenix, Arizona, USA Metropolitan area (2000)

Artificial lakes are a prominent example of a local hydrogeomorphic modification in the Phoenix, Arizona metropolitan area. Although lakes are not a natural feature of Sonoran desert ecosystems, numerous artificial lakes are evident in the region. Here we attempt to quantify the heretofore unknown number and extent of artificial lakes. As official GIS layers from local and state agencies had significant misclassifications and omissions, we used two published land cover datasets to estimate the number and areal extent of artificial lakes. We discovered that there are 908-1,390 lakes in the Phoenix area, with the number varying according to level of aggregation. Accurate data on the extent and distribution of these designed ecosystems is vital for water-resources planning and stormwater management. Results, discussion, and additional details are available in document DOI 10.1007/s11252-011-0208-1.

人工湖是美国亚利桑那州凤凰城都会区局部水文地貌（hydrogeomorphic）改造的典型范例。尽管湖泊并非索诺兰沙漠（Sonoran Desert）生态系统的原生自然景观，但该区域内人工湖分布广泛。本研究旨在量化此前尚未明确的该区域人工湖的数量与面积范围。由于地方与州级机构提供的官方地理信息系统（GIS）图层存在大量分类错误与遗漏项，本研究采用两份已发表的土地覆盖数据集，对人工湖的数量与面积规模进行估算。研究发现，凤凰城都会区的人工湖数量介于908至1390之间，具体数值会因聚合粒度的不同而有所变化。准确掌握这类人工设计生态系统的面积与分布数据，对水资源规划与暴雨管理工作至关重要。研究结果、讨论与更多细节可参阅DOI为10.1007/s11252-011-0208-1的文献。