Copyright on this material is held by the authors. The data of early implementations was stored in local memory to guarantee optimal speed.
Problems arise when the data is very large and distributed over a network.
Soon users will be able to retrieve earth science data from hundreds of thousands of datasets from centers around the country. A second dynamic query interface allows users to specify precise values for more attributes and further filter the result set. The timeline shows the coverage of the datasets, already zoomed on the years selected in the query preview. Large datasets appear at the top, small ones at the bottom, color coded by processing level. The preview bars are updated immediately.