Hourly discharge data covering the whole hydrological Switzerland (i.e. 291 catchments in Switzerland plus those in the neighbouring countries: Austria, France, Germany and Italy). Note: all coordinates in Inventory_discharge_hydroCH.xlsx are provided in the Swiss coordinate system CH1903/LV03 (EPSG: 21781) **## FORMAT ##** All data are in winter time = UTC+1=MEZ=CET, and the notation for the hourly data is HH=(HH):00-(HH+1):00 => this corresponds to the format used by the FOEN All files are saved with the ending **_Q_hourly.asc (see the overview file for all details about the stations and the corresponding file names) All data are are save in 5 columns separated by tabs (year, month, day, hour, 'Q.' followed by the ID6 name given to the station): YYYY MM DD HH Q.**stationID6** --------------------------------------------------------------------------------------------------------------------------------------------------- **## OVERVIEW ##** Please find an overview of all available data in Inventory_discharge_hydroCH.xlsx --------------------------------------------------------------------------------------------------------------------------------------------------- **## DATA SOURCES ##** Data were kindly provided for Switzerland and for the four neighbouring countries by Switzerland (CH): Swiss Federal Office of the Environment (FOEN), Ittigen, Switzerland; data provided 17th April 2020 Austria (A): Office of the Federal State of Vorarlberg, Division of Water Management, Bregenz, Austria (VRB); data provided 20th August 2019 Data from the LAMAH-CE data set by Klingler et al.2021 (LAMAH) Germany (DE): Bavarian State Office for the Environment – Hydrographic Service, Munich, Germany (GKDB) data downloaded from https://www.gkd.bayern.de/en/rivers/discharge/tables on 14th May 2019 and 5th October 2020; State Agency for the Environment Baden-Württemberg – Hydrographic Service, Karlsruhe, Germany (LUBW) data downloaded from http://udo.lubw.baden-wuerttemberg.de/public/p/pegel_messwerte_leer on 26th October 2020 France (FR): french database of discharge Banque Hydro (https://www.hydro.eaufrance.fr/; see also https://zenodo.org/record/3744183#.ZABfMnbMJGF for scripted help in downloading (webscrapping) flow rates data from the french database); data downloaded between December 2019 and January 2020 Italy (I): Italy (I): ARPA Lombardia (the regional agency for environmental protection for the region Lombardia), Milano, Italy; data provided in November 2020 ARPA Piemonte (the regional agency for environmental protection for the region Piemonte), Torino, Italy; data provided in October 2020 --------------------------------------------------------------------------------------------------------------------------------------------------- **## ADDITIONAL INFORMATION ##** Please find additional information in the document Zusatzinfos.docx (for now only in German) --------------------------------------------------------------------------------------------------------------------------------------------------- **## REFERENCES ##** Klingler, C., Schulz, K., and Herrnegger, M.: LamaH-CE: LArge-SaMple DAta for Hydrology and Environmental Sciences for Central Europe, Earth Syst. Sci. Data, 13, 4529–4565, https://doi.org/10.5194/essd-13-4529-2021, 2021