Analysis: Sources, Transport Processes

Purpose: To perform analysis regarding the sources and transport of air pollutants

Background: The pattern of air pollution is determined by the combined effects of emission sources, and by the interaction of transport, transformation and removal processes. The contribution of the various factors an be examined by simple analysis tools.

Analysis Tool: The analysis tool consists of display/browser of observed AQ data; source density, transport pattern and model simulations.

Usuage: The analyst identifies the location of high pollution levels and runs the back-trajectories for those locations. Air mass back-trajectories are overlaid on top of emission density maps to see if the air resided over high pollutant emission regions. Based on satellite and model data, the analyst examines possible emissions from major fires or from dust storms. Given the location of high pollution values, forward trajectories are calculated to see the transport direction of the polluted air. Model forecast are also consulted.

Services: Each data set is accessed through WMS/WCS/WFS, Portray, Overlaid, augmented by data wrappers and adopters. Chaining is executed at multiple servers to demonstrate interoperability. The tool is a special client.

Service Integration: A special client that allows data overlay, browsing as well as zoom and pan, in space and time.

Problems: ??