Camana watershed-scale hydrologic model

The Camana watershed-scale hydrologic model comprehends watersheds delineated by landuse and ANA subbasins (ANA is the Peruvian Water National authority). The model was simulated with PRMS, and sub-divided into multiple subbasins. HRUs in the simulation represent a geospatial merge between subbasins and landuses. Soil geometries were not considered due to the high uncertainty of the datasets and the lack of measured data in this regional scale simulated. Watersheds and subbasins were re-delineated and some may not contain the entire watershed dimension because only subbasins with monitored data were considered.
Raw data from automatic and conventional weather stations was used and supported with the PISCO gridded dataset developed by SENAMHI. The model comprehends streamflow, diversions, and reservoir operations up to 2016. Reservoir volumes were calibrated, and different water uses, and climate change scenarios were evaluated.
In total, 5 Peruvian watersheds located in the region of Arequipa were evaluated: Yauca, Ocona, Camana Quilca, and Tambo.

卡马纳（Camana）流域尺度水文模型涵盖基于土地利用与ANA子流域划分的流域单元，其中ANA即秘鲁国家水务管理局。该模型采用PRMS进行模拟，并被划分为多个子流域。模拟中的水文响应单元（HRUs）代表子流域与土地利用类型的地理空间融合单元。鉴于该区域尺度模拟数据集不确定性较高且缺乏实测数据，未考虑土壤几何构型。流域与子流域均经过重新划定，部分单元可能未覆盖完整流域范围，因仅纳入了带有监测数据的子流域。研究采用自动与常规气象站的原始数据，并辅以秘鲁国家气象水文局（SENAMHI）研发的PISCO格点数据集。该模型涵盖截至2016年的径流、引水及水库调度过程，对水库库容进行了率定，并评估了不同用水情景与气候变化情景。本次研究共评估了位于阿雷基帕地区的5个秘鲁流域，分别为亚乌卡（Yauca）、奥科纳（Ocona）、卡马纳基尔卡（Camana Quilca）与坦博（Tambo）。