This paper describes a post-processing tool included in the globally used SWAT model for desktop assessment of environmental flows. The tool uses daily flow data from SWAT outputs and can apply different methodologies based on percentiles or moving averages to assess environmental flows. This tool, included in the visualization section of the SWAT model, is open source and can therefore be readily expanded to include additional methodologies. The features and capabilities of this tool are demonstrated through an application to the Eo River basin in the northwest of Spain. The impact of climate change on environmental flows was analyzed, obtaining reductions in environmental flows significantly greater than those of average flows mainly as a result of the increase in the variability of the daily flow series. This tool can help policymakers and scientists with rapid preliminary assessment of environmental flows.

本文介绍了全球使用的SWAT模型中包含的一种后处理工具，用于对环境流量进行桌面评估。该工具使用来自SWAT输出的每日流量数据，并且可以基于百分位数或移动平均值应用不同的方法来评估环境流量。该工具包含在SWAT模型的可视化部分中，是开源的，因此可以轻松扩展以包括其他方法。该工具的功能和特性通过在西班牙西北部的Eo河盆地中的应用进行了演示。分析了气候变化对环境流量的影响，主要是由于日流量序列的可变性增加，导致环境流量的减少明显大于平均流量的减少。