Anthropogenic modification of observed discharge: Summary of HydCHeck factsheets for Swiss gauging stations

This Excel-file contains summary information extracted from the factsheets published by the Swiss Federal Office for the Environment about the anthropogenic influence on discharge observed at Swiss federal gauging stations. The selection of factsheets (downloaded on 24 June 2025) contains 162 gauging stations. The factsheets (version 05 march 2025) are available at (last access 24 June 2025): https://www.bafu.admin.ch/bafu/de/home/themen/wasser/fluesse-und-baeche/wasserfuehrung-und-abflussregime-der-fliessgewaesser/beeinflussung-des-abflusses.html Details on the underlying methology are available in this report: Steeb, N., Lustenberger, F., & Zappa, M. (2024). Beurteilung der Beeinflussung des Abflusses an NAWA‐Messstellen. Detailbericht des BAFU‐Projekts HydCHeck. Eidgenössische Forschungsanstalt für Wald, Schnee und Landschaft (WSL). https://doi.org/10.55419/wsl:37799 The data has been extracted manually from the pdfs. Version 1 (V1) contains a summary of the degree of influence of the streamflow regime and the storage volume of storage reservoirs in the catchments. Note on "irrigation" numbers that can be found in the factsheets (not in this summary): The amount of water used for irrigation is based on the average demand for irrigation in Switzerland. This method yields an interesting but rough estimate: it uses the same number for all areas classified as agricultural land. The following limitations apply at the regional/catchment scale: not all crops are actually irrigated due to economic viability issues; not all areas are easily accessible for existing/potential irrigation infrastructure (thus, irrigation is not possible); irrigation bans can significantly impact the amount of water used for irrigation; and irrigation amounts are highly dependent on crop type, thus the portfolio of crops for a sub catchment may substantially influence the amount of water used for irrigation. Courtesy of this irrigation water note: Malve Heinz.本Excel文件包含从瑞士联邦环境办公室（Swiss Federal Office for the Environment，以下简称BAFU）发布的概况报告中提取的摘要信息，主题为人为活动对瑞士联邦水文测站观测径流的影响。 本次筛选的概况报告于2025年6月24日下载，共涵盖162个水文测站。该概况报告版本为2025年3月5日发布版，原始报告的最后访问时间为2025年6月24日，访问链接如下： https://www.bafu.admin.ch/bafu/de/home/themen/wasser/fluesse-und-baeche/wasserfuehrung-und-abflussregime-der-fliessgewaesser/beeinflussung-des-abflusses.html 相关方法学细节可参阅以下研究报告： Steeb, N., Lustenberger, F., & Zappa, M. (2024). NAWA监测站径流影响评估. 瑞士联邦环境办公室HydCHeck项目详细报告. 瑞士联邦森林、雪与景观研究所（Eidgenössische Forschungsanstalt für Wald, Schnee und Landschaft, 以下简称WSL）. https://doi.org/10.55419/wsl:37799 本数据集数据均从PDF文件中手动提取。 版本1（V1）包含径流情势影响程度及流域内蓄水水库库容的摘要信息。 ### 关于概况报告（非本摘要）中“灌溉”数值的说明 概况报告中提及的“灌溉”相关数值，其计算基于瑞士全国灌溉平均需水量。该方法仅能得到粗略但具备参考价值的估算结果：对所有归类为农用地的区域采用统一的灌溉用水量数值。该估算在区域/流域尺度上存在以下局限：1. 受经济可行性限制，并非所有作物都会实际开展灌溉；2. 现有或规划中的灌溉基础设施并非覆盖所有区域，因此部分区域无法实施灌溉；3. 灌溉禁令可显著影响实际灌溉用水量；4. 灌溉用水量高度依赖作物类型，因此子流域的作物种植结构可对灌溉用水量产生显著影响。本灌溉用水说明由Malve Heinz提供。