Web Services for Comparative Data Analysis of Emissions Inventories
نویسنده
چکیده
This paper describes the development and application of web services for comparing US and global emission inventories. Web services and service oriented architectures are providing new ways to support emissions modelers and analysts as they provide a web browser based environment for accessing and analyzing emissions data and inventories. Traditional emissions data analyses that can be conducted using web applications reduce the effort associated with accessing data, formatting data, and running analyses. The web application presented here supports an “offline” analysis conducted by the authors for reconciling and comparing regional and global emissions inventories. The focus of the analysis was the reconciliation of global inventories developed using “top down” methods with regional inventories developed using localized “bottom up” methods for a domain covering the continental United States. Part of that analysis is reconstructed using web services, including the spatial allocation of point source US EPA NEI data to a 1x1 degree grid and calculation of differences and ratios between the gridded NEI and EDGAR inventories. The online application is made possible through dynamic internet access to emissions inventory data and web standards for connecting data access services with data analysis and map visualization services. The same analysis services can be quickly re-applied when emissions data are updated or applied to new comparisons with other inventories. The analysis web services are openly available online (www.neisgei.org) for other emissions or non-emissions applications.
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