Study area: Watershed of the Tocantins-Araguaia River.

Focus of the study: Given the large discharge of rivers in Tocantins-Araguaia Watershed (TAW) and consequently a great potential for hydropower generation, we used the SWAT model to simulate the streamflow of the TAW and investigated its energy potential.

New approaches to local hydrology: Our goal is to use the flow estimated by SWAT to simulate the energy potential at the Tucuruí hydropower plant in Tocantins-Araguaia River, Pará, Brazil. We identified that in SWAT calibration some parameters are more sensitive to water processes than others, hence allowing the improvement of simulation in the TAW. The validation of the model showed that the simulated results were consistent with the data observed in the dynamic reproduction of flow seasonality. It was possible to generate hydropower potential in the TAW and evaluate its potential when the SWAT streamflow was calibrated and validated. This study may be useful for planning sustainable management and decision-making to create public policies of hydrological basins located in tropical regions.

研究区域：Tocantins-Araguaia河的分水岭。

研究重点：鉴于Tocantins-Araguaia流域（TAW）的河流流量大，因此具有巨大的水力发电潜力，我们使用SWAT模型来模拟TAW的流量并研究其能量潜力。

本地水文学的新方法：我们的目标是使用SWAT估算的流量来模拟巴西帕拉Tocantins-Araguaia河的Tucuruí水电站的能源潜力。我们发现，在SWAT校准中，某些参数比其他参数对水过程更敏感，因此可以改进TAW中的模拟。模型的验证表明，模拟结果与流量季节性动态再现中观察到的数据一致。当对SWAT流量进行校准和验证时，可以在TAW中产生水电潜力并评估其潜力。这项研究对于规划可持续管理和决策以制定热带地区水文盆地的公共政策可能是有用的。