1. Introduction
Over the last decades the amount of geospatial data has grown rapidly as a result of the number of satellites and the use of Global Positioning Systems (GPS). To assist in the analysis and visualization of all this data, several geographic information systems (GISs)and Web GIS sites have been developed (Steiniger and Hunter,
2012). Some of the Web GIS sites share common functionalities,such as access to raw data or the ability to overlap different layers (Kulawiak et al., 2010; Karnatak et al., 2012; Nair and Katiyar, 2011).Web GIS sites that display environmental data, like the Pacific Islands Ocean Observing System (Voyager) or the Web GIS sites developed by the European Environment Agency, have an even larger set of common features, such as the ability to identify layer data at any coordinate, and the capability to plot data in real time. However, there is not, to the best of our knowledge, any open source program that automatically generates Web GIS sites with a
minimum set of features that allow efficient publication of 4D
geospatial data.