2026-08-06T09:37:31Zhttp://doidb.wdc-terra.org/oaip/oai

oai:doidb.wdc-terra.org:86212026-06-10T10:32:19ZDOIDBDOIDB.GFZ

false4DOIDB.GFZ 10.5880/GFZ.HDBG.2026.001 Woith, Heiko Heiko Woith 0000-0001-7662-7780 GFZ Helmholtz Centre for Geosciences Riße, Andreas Andreas Riße State Office for Geology and Mining of Rhineland-Palatinate Strauch, Bettina Bettina Strauch 0000-0002-3648-1032 GFZ Helmholtz Centre for Geosciences Zimmer, Martin Martin Zimmer 0000-0002-8848-2336 GFZ Helmholtz Centre for Geosciences Niedermann, Samuel Samuel Niedermann 0000-0003-1626-5284 GFZ Helmholtz Centre for Geosciences Schmidt, Bernd Bernd Schmidt State Office for Geology and Mining of Rhineland-Palatinate Dahm, Torsten Torsten Dahm 0000-0001-6432-7422 GFZ Helmholtz Centre for Geosciences GFZ Data Services 2026 Eifel volcanic fields fluid monitoring transients CO2 radon helium isotopes In Situ/Laboratory Instruments > Conductivity Sensors In Situ/Laboratory Instruments > Conductivity Sensors > CONDUCTIVITY METERS In Situ/Laboratory Instruments > Current/Wind Meters In Situ/Laboratory Instruments > Current/Wind Meters > WIND MONITOR In Situ/Laboratory Instruments > Gauges In Situ/Laboratory Instruments > Gauges > GROUND WATER LEVEL GAUGES In Situ/Laboratory Instruments > Gauges > RAIN GAUGES In Situ/Laboratory Instruments > Gauges > WATER LEVEL GAUGES In Situ/Laboratory Instruments > Pressure/Height Meters > PRESSURE SENSORS In Situ/Laboratory Instruments > Pressure/Height Meters > PRESSURE TRANSDUCERS In Situ/Laboratory Instruments > Probes > TEMPERATURE PROBES In Situ/Laboratory Instruments > Recorders/Loggers Platforms > Land-based Platforms > Field Sites Platforms > Land-based Platforms > Field Sites > Data Collections Platforms > Land-based Platforms > Field Sites > Transmitter Station Science Keywords > EARTH SCIENCE > SOLID EARTH > EARTH GASES/LIQUIDS Science Keywords > EARTH SCIENCE > SOLID EARTH > EARTH GASES/LIQUIDS > NATURAL GAS Science Keywords > EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES Science Keywords > EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES Science Keywords > EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES > EARTHQUAKE PREDICTIONS Science Keywords > EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > VOLCANO PREDICTIONS Science Keywords > EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GROUND WATER Science Keywords > EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GROUND WATER > GROUND WATER FEATURES > WATER TABLE Science Keywords > EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GROUND WATER > GROUNDWATER CHEMISTRY Woith, Heiko Heiko Woith 0000-0001-7662-7780 GFZ Helmholtz Centre for Geosciences GFZ Helmholtz Centre for Geosciences State Office for Geology and Mining of Rhineland-Palatinate Woith, Heiko GFZ Helmholtz Centre for Geosciences Dataset 10.1007/s00531-026-02559-w Creative Commons Attribution 4.0 International Real-time fluid monitoring began in late 2020 in the East Eifel and currently includes 12 sites, such as abandoned CO₂ wells, mofettes, CO₂-rich springs, CO₂-rich soil, and a cold-water geyser in the West Eifel. For the first time, fluid data are being recorded continuously with a high temporal resolution of up to 1 Hz. Depending on the local site conditions, the following parameters are being monitored: instrument temperature and battery voltage; barometric pressure and temperature; meteorological parameters; water level, wellhead pressure, water temperature; radon in free gas phase; CO2 concentration and CO2 flux in soil gas. Data are transmitted hourly via FTP to GFZ. While we generally observe small seasonal variations, short-term transients related to heavy rain or local and distant earthquakes are indicated. Over longer periods, we observe trend changes in helium isotope ratios, radon concentration, and water temperature. For example, two sites exhibited significant helium isotope changes from 2021 to 2025, which appear to correlate with earthquake swarms at depth. These examples demonstrate the necessity of jointly interpreting meteorological, hydrogeological, geophysical, and geodetic data.
Based on 40 years of fluid monitoring experience, only those parameters were chosen for continuous monitoring, which are nearly maintenance-free. All sensors were calibrated before installation using calibrated reference probes. The GFZ-made radon detector was calibrated using two different commercial radon detectors (g.b.h. and AlphaGUARD). On-site, analog manometers (installed at the wellhead next to the pressure transducer) readings are regularly compared to the transducer values during station visits; water level sensors are controlled by manual water level measurements with an electric contact gauge; logged water temperature and conductivity values are compared to manual readings with handheld devices (P655 and HACH HD30) from time to time. The CO2 flux measuring system is calibrated with air approximately every three months during each visit. However, to check the data, the air composition is measured after each sample measurement, allowing direct verification of the currently measured values.
PLAI PRBU MIES GLEE ELIS WALL MLAA REGI NETT LAAS OMED GLEN GFZ Helmholtz Centre for Geosciences http://dx.doi.org/10.13039/501100010956 Eifel Observatory