Visualizing Uncertainty in Environmental Workflows and Sensor Streams
ISW-2011: Integrating Sensor Web and Web-based Geoprocessing, An AGILE 2011 Conference Workshop; Utrecht, The Netherlands, April 18, 2011
Karthikeyan Bollu Ganesh and Patrick Maue
“Environmental data and models are uncertain by nature. The lack of knowledge about, for example, the magnitude of potential measurement errors may lead to unforeseen consequences. This makes it diffcult to assess the data’s or model’s usefulness for critical applications. We present an approach for the visualization of uncertainty coming from in-situ environmental sensors. The visualization component is part of a Web-enabled environmental modelling platform which also supports the speci cation of processing workflows. The concept of uncertainty and means for its encoding as part of the environmental data are introduced. The individual components in the processing workflows propagate and update the uncertainty information.We also explain how the uncertainty in the original sensor data has been identi ed, and how the visualization component has been implemented.”
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