Therefore, many users (especially scientists) access ncWMS servers through a specially-designed web-based client such as Godiva2 as an interactive visualization system for verifying and diagnosing the outputs of their latest simulations of ocean, atmosphere or climate (e.g. Gemmell et al., 2011). Feedback from these users indicates that the features that are most appreciated include the ability to create animations (a process that is often time-consuming in existing community tools), the automatic generation of velocity fields, the ability to view data in multiple plot types (maps, timeseries, transects, sections) and the immediacy and interactivity of the system, enabling curiosity-driven exploration of large data.