A device (100, 200) able to detect and characterise anomalies in a water continuum, comprising: - at least one communication link (221, 222), respectively to at least one sensor (211, 212) for at least one physical quantity in the water continuum; - a processor configured to: - receive measurements from the at least one sensor through the at least one communication link; - generate a plurality of time windows of the measurements; - for each time window of said plurality: - obtain a set of values transformed by at least one transformation of the measurements over the time window; - apply an anomaly detector to the set of transformed values so as to detect a normal or abnormal state of the time window, said anomaly detector being parameterised on the basis of sets of transformed values arising from the application of the at least one transformation to time windows of previous measurements of the at least one sensor; - detect an anomaly in the water continuum, as a function of a number of time windows exhibiting an abnormal state; - execute on the measurements a set of predefined rules for detecting a variation of at least one of the physical quantities; - if an anomaly in the water continuum is detected, assign to the anomaly an anomaly type associated with a variation of a predefined subset of the physical quantities, if the variation of at least one of the quantities of the subset is detected. - at least one communication link (221, 222), respectively to at least one sensor (211, 212) for at least one physical quantity in the water continuum; - a processor configured to: - receive measurements from the at least one sensor through the at least one communication link; - generate a plurality of time windows of the measurements; - for each time window of said plurality: - obtain a set of values transformed by at least one transformation of the measurements over the time window; - apply an anomaly detector to the set of transformed values so as to detect a normal or abnormal state of the time window, said anomaly detector being parameterised on the basis of sets of transformed values arising from the application of the at least one transformation to time windows of previous measurements of the at least one sensor; - detect an anomaly in the water continuum, as a function of a number of time windows exhibiting an abnormal state; - execute on the measurements a set of predefined rules for detecting a variation of at least one of the physical quantities; - if an anomaly in the water continuum is detected, assign to the anomaly an anomaly type associated with a variation of a predefined subset of the physical quantities, if the variation of at least one of the quantities of the subset is detected. - receive measurements from the at least one sensor through the at least one communication link; - generate a plurality of time windows of the measurements; - for each time window of said plurality: - obtain a set of values transformed by at least one transformation of the measurements over the time window; - apply an anomaly detector to the set of transformed values so as to detect a normal or abnormal state of the time window, said anomaly detector being parameterised on the basis of sets of transformed values arising from the application of the at least one transformation to time windows of previous measurements of the at least one sensor; - obtain a set of values transformed by at least one transformation of the measurements over the time window; - apply an anomaly detector to the set of transformed values so as to detect a normal or abnormal state of the time window, said anomaly detector being parameterised on the basis of sets of transformed values arising from the application of the at least one transformation to time windows of previous measurements of the at least one sensor; - detect an anomaly in the water continuum, as a function of a number of time windows exhibiting an abnormal state; - execute on the measurements a set of predefined rules for detecting a variation of at least one of the physical quantities; - if an anomaly in the water continuum is detected, assign to the anomaly an anomaly type associated with a variation of a predefined subset of the physical quantities, if the variation of at least one of the quantities of the subset is detected.