Wolter, M.Assenmacher, I.Hentschel, B.Schirski, M.Kuhlen, T.2015-02-232015-02-2320091467-8659https://doi.org/10.1111/j.1467-8659.2008.01314.xThe analysis of unsteady phenomena is an important topic for scientific visualization. Several time-dependent visualization techniques exist, as well as solutions for dealing with the enormous size of time-varying data in interactive visualization. Many current visualization toolkits support displaying time-varying data sets. However, for the interactive exploration of time-varying data in scientific visualization, no common time model that describes the temporal properties which occur in the visualization process has been established. In this work, we propose a general time model which classifies the time frames of simulation phenomena and the connections between different time scales in the analysis process. This model is designed for intuitive interaction with time in visualization applications for the domain expert as well as for the developer of visualization tools. We demonstrate the benefits of our model by applying it to two use cases with different temporal properties.10.1111/j.1467-8659.2008.01314.x1561-1571