AMAMiR (Advanced Monitoring Action for Mitigation of Hydrogeological Risk) is a real-time monitoring system able to control several heterogeneous remote sensors addressed to a DSS (Decision Support System) and it is useful to support research activities. The different sensors are assembled through "smart nodes", geographically distributed, able to manage the local acquisition, the temporary storage and the transmission of recorded data. Acquired with periodicity of 1 minute, data are stored and trasmitted to Computer Centre if there are significatice changes controlled by prefixed thresholds. A middle-tie software system automatically interacts with both "smart nodes" and the central DBMS. The transmission of signals is achieved using different media and standards: cable, WiFi, GPRS, ADSL. Each "smart node" is independent and acquires data in a self-contained way from one or more sensors. Furthermore, it is capable to store data locally and to transmit them to the data-processing centre, as soon as possible. So far, absences of connectivity or communication network problems do not affect the whole system and do not cause data loss. The managing software processes automatically the information collected by the "smart nodes" and sends them to the Processing Centre. Through a special user-friendly WebGis portal it is possible to query in real time the DBMS and control the sensors distributed all over the territory in a simple and immediate way. On the website, data access is subjected to login authorization consequently, without permission data have only demonstrative purposes. Actually the system is addressed to skilled users. A prototype of AMAMiR has been built in Calabria, Southern Italy, to monitor a wide and deep landslide in San Martino di Finita, a city crossed by an active fault. Available sensors measure different data type: atmospheric parameters (pressure, temperature, humidity, wind, etc.), ground parameters (rainfall, deformations and rotation of buildings, GPS baselines, water springs characteristics like turbidity, flow, Ph, conductivity, etc.), underground data (piezometric level, water soil content, etc.). All the data are collected and processed in real time and they are immediately available on the web. This monitoring system shows good stability and reliability in managing remote data. Addressed to a DSS, actually the system is under calibration to find a robust geotechnical model of the landslide (Zheng et al., 2005). Because of short observation time, still now it is not possible to compare results of the adopted FEM (Finite Element Model) of PLAXIS(C) software to verify the correctness of the adopted soil geotechnical characteristics. AMAMiR system is designed to be easily upgraded and planned to accommodate different typologies of sensors and a large numbers of "smart nodes". In the AMAMIR acronyim the adjective "Advanced" deals with the capability of the system to support auto-locating data loggers that allow an immediate and simple setup of new heterogeneous remote sensors. These auto-locating data loggers, equipped with small and low-cost GPS, are automatically recognized by AMAMiR structure and, as soon as they are powered on, start the procedure for automatic localization, transmission, reading and updating of the central database. Then, the flexibility of the whole system simplifies the increase of remote sensors and an immediate start up when auto-locating data loggers are used. In general, all data collected by sensors distributed all over the territory reach the Data Processing Centre through the "smart odes", where they are analyzed and processed for an immediate dissemination through the WebGis Portal. AMAMiR could be implemented to monitor, in real time, a wide range of natural phenomena, like landslides, floods, earthquakes, etc. It is a powerful tool, very cost-effective, which may be installed everywhere and used to support the decision making process of local administrators in order to manage the risks and to protect the population.
