Raw hydrological data (HYGON)

Current unchecked raw data on water level (W), water temperature, water quality and precipitation (N) from HYGON. Any errors that may occur, including incorrect values, can only be corrected in the subsequent check by the operator. For this reason, no guarantee can be given for the completeness and correctness of the data accessed here. Water levels: The measurement of the water level in above-ground bodies of water is carried out using gauges. In North Rhine-Westphalia there are around 500 gauges whose measurements form the basis for the planning and control of water management systems. The so-called gauge system includes not only the pure water level measurement at many gauges, but also additional measurements to determine the discharge. Water temperature: The basis of a temperature measuring network consists primarily of the continuously measuring quality stations that LANUV operates nationwide. These stations have been installed at sampling points relevant to water management in NRW (e.g. the mouths of large tributaries in the Rhine, on the Ruhr and at border water measuring points). In addition, so-called combination probes for measuring water level and water temperature have been installed during the installation of new sensors for water levels at gauges in NRW in recent years, which also enable the water temperature to be measured as a by-product at the location of the water level measurement. Water quality: At six control stations on the Rhine and at the alarm stations at the mouths of the most important Rhine tributaries as well as on the Weser and Ems, water samples are continuously taken by the State Agency for Nature, Environment and Consumer Protection (LANUV) NRW and analyzed at short intervals. Precipitation: The measured values ​​from around 200 precipitation stations, which are equipped with technical devices for data transmission, are currently available as raw data values. The amount of precipitation is recorded at all stations in minute resolution. Depending on the technical equipment, the stations are either called up once a day or they send current values ​​every hour. The unaudited raw data is stored in Hygon's database for 2 years. For older databases, reference is made to the specialist information system ELWAS.