Abstract

Many things that happen are having space and time as major dimensions. Visual representation of these datasets and information brings out unique opportunity to identify meaningful trends like Magnitude, Shape, Velocity, Direction etc. In this paper, we present various methodologies for Geodata time-series visualization using Opensource Geospatial solutions. Advantage of Web 2.0 for ‘Rich Internet Applications, Web-oriented Architecture and Social web’ by having dynamic data rendering, details on demand, Navigation are harnessed to disseminate the data and identity the trends. We explain Open Geospatial Consortium Web Standards for implementing this process.WMS with user defined array of time delay, WMS animator with format supporting multi-frame images in style layer descriptor(SLD), defining time in service metadata of WMS, are implemented in various Bhuvan applications like Events, Forest cover loss, Urban Sprawl etc. Depending on the context, time value is parameterized as a single value, a list of values, or an interval. WMS servers – Mapserver and Geoserver are configured to provide support temporal requests. Client side OpenLayers is used to make structured http requests to server with Slider, Swipe, Animate controls for effective Time Series Visualization.

Time Series Geodata visualization in Web 2.0

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