PEGELONLINE Water Level API
PEGELONLINE Water Level API
PEGELONLINE, run by Germany's Wasserstraßen- und Schifffahrtsverwaltung (WSV, the federal waterways and shipping administration), publishes a keyless REST API over gauge stations on Germany's federal waterways. The overview page says (Signal Lab translation in brackets): "Diese umfassen tagesaktuelle Rohdaten verschiedener hydrologischer Parameter, wie zum Beispiel Wasserstände, von Binnen- und Küstenpegeln entlang der Bundeswasserstraßen." [These comprise day-current raw data of various hydrological parameters, such as water levels, from inland and coastal gauges along the federal waterways.]
Required Attribution:
Not stated as a mandatory credit line on the checked pages beyond acknowledging the DL-DE->Zero-2.0 licence.
Coverage
The REST-API docs describe a Measurement resource for raw water-level and discharge (Q) readings, forecasts, scheduled values and fairway/diving-depth data, available as JSON, CSV or a chart: "Hierbei handelt es sich um die gemessenen Rohdaten, Vorhersagen, Terminwerte oder Fahrrinnen- und Tauchtiefen (siehe entsprechende Abschnitte). Es können Daten für die letzten 31 Tage bezogen werden." [This covers the measured raw data, forecasts, scheduled values or fairway and diving depths (see the relevant sections). Data can be retrieved for the last 31 days.] History start and update frequency: Not stated beyond that 31-day retrieval window.
Verdict
Keyless REST API for day-current water-level, discharge and related raw gauge readings (plus forecasts and scheduled values) from German federal waterway stations, as JSON or CSV, with up to 31 days retrievable per the docs. The overview page warns the raw data are unchecked: "Die Wasserstraßen- und Schifffahrtsverwaltung des Bundes (WSV) stellt diese ungeprüften Rohdaten bereit. Daher wird keine Haftung oder Gewährleistung für die inhaltliche Richtigkeit, Genauigkeit, Aktualität, Zuverlässigkeit oder Vollständigkeit der Daten übernommen." [The WSV provides this unchecked raw data; accordingly no liability or warranty is assumed for its correctness, accuracy, currency, reliability or completeness.] Licensed Custom (Datenlizenz Deutschland – Zero – Version 2.0 / DL-DE->Zero-2.0): "Die Daten sind unter der Lizenz DL-DE->Zero-2.0 frei verfügbar." [The data are freely available under the DL-DE->Zero-2.0 licence.] The terms page adds: "Die bereitgestellten Daten und Metadaten dürfen für die kommerzielle und nicht kommerzielle Nutzung insbesondere vervielfältigt, ausgedruckt, präsentiert, verändert, bearbeitet sowie an Dritte übermittelt werden." [The data and metadata provided may, for commercial and non-commercial use, in particular be reproduced, printed, presented, altered, edited and passed on to third parties.] Rate limits: Not stated. Signal Lab links only.
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