dotOcean's software platform, Atlantis, is a big data acquisition system with a user friendly web based visualization tool. The system consists out of three parts: - An online data storage platform where all sensor data is acquired and stored with a sub micro second synchronized timestamp in an online database. The data can be combined with survey data from all kinds of hydrographical equipment. - An online interface to visualize the captured data real-time. - A processing software which can interpret the data. The data processing software is capable to acquire, receive, process, display, do quality control and distribute data to the web server for visualization purposes. The software platform is able to communicate with all types of sensors (meteo and environmental sensors, hydrophones, strain gauges, pressure sensors, temperature sensors and accelerometers). Next to sensors, the platform can integrate survey data from a wide range of equipment and visualization instruments.