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CAPITA Web Services
In cooperation with the Center for Air Pollution Impact and Trend Analysis (CAPITA) in the School of Engineering at Washington University in St. Louis, VIEWS provides access to several air quality-related web services developed by CAPITA.
Services and Tools:

DataFed
CAPITA's DataFed project is intended to facilitate the access and flow of atmospheric data from providers to users and to assist efforts in air quality mangement and science by the effective dissemination and use of relevant data. DataFed offers access to a variety of pertinent air quality datasets, and provides a suite of tools and web services for exploring and analyzing air quality data in general.
Voyager
Voyager is an integrated set of developement tools for creating sophisticated, multidimensional applications for exploring and analyzing air quality data. The Voyager Viewer, an integral part of the Voyager system suite, is required for browsing Voyager data files. A Voyager Decompiler is also available for converting Voyager files to ASCII text files.
Data Views
A "Data View" is a user-specified representation of data accessible through DataFed. A user or web page can display a DataView by supplying a set of HTTP parameters to a DataFed web service. These images can be composed of a single or multiple datasets. Once data views are defined, they can be manipulated in a web applicaiton using standard web scripting languages.
  Application Programs
Tools and general-purpose applications that have been developed using CAPITA's DataView technology in conjunction with the DataFed web services.
Studies and Applications:

Wildland Fire Assessment System (WFAS)
Calculated Comparisons Between IMPROVE Parameters
Analysis of the Impact of Spatial Interpolation Settings