One of the goals of TDM is to cross-validate data from low-cost sensors by comparing them to each other and to data from simulations. This makes it possible to increase the reliability of measurements from sensors, as well as the reliability of simulations. In particular, with these analyses it will be possible to associate a degree of reliability to sensor measurements. In addition, simulations will be able to incorporate data from the most reliable diffuse sensing to improve short-term predictions. An application that compares weather-environmental sensor data with data from simulations is now available in the project demo portal.