Data of type chemistry measured on La Loire basin within the framework of the VAL D'ORLEANS observatory, that is part of the KARST observatory network. The KARST observatory network aims to strengthen knowledge-sharing and to promote cross-disciplinary research on karst systems, in the framework of the OZCAR Critical Zone network Research Infrastructure. Data consist in 29 time series on 2 station(s). The measured parameters are: Ammonium (mg/L), Bicarbonate (mg/L), Calcium (Ca) - Major ion (mg/L), Chlorine (Cl) (mg/L), Delta-H-2 (‰ SMOW), Delta-O-18 (‰ SMOW), Dissolved oxygen (mg/L), Magnesium (Mg) - Major ion (mg/L), Nitrate (mg/L), Nitrite (mg/L), Potassium (K) - Major ion (mg/L), Silica (SiO2) (mg/L), Sodium (Na) - Major ion (mg/L), Sulfate (mg/L), Suspended solids (mg/L). Measurements start on 13-10-1979 and end on 23-01-2024

Data of type physico-chemistry measured on La Loire basin within the framework of the VAL D'ORLEANS observatory, that is part of the KARST observatory network. The KARST observatory network aims to strengthen knowledge-sharing and to promote cross-disciplinary research on karst systems, in the framework of the OZCAR Critical Zone network Research Infrastructure. Data consist in 10 time series on 2 station(s). The measured parameters are: Conductivity (µS/cm), Dissolved organic carbon (DOC) (mg/L), pH (units), Turbidity (NTU), Water temperature (°C). Measurements start on 05-10-1979 and end on 23-01-2024