Conference Paper

Delivering real-time satellite data to a broader audience.

DOI: 10.1145/1658260.1658264 In proceeding of: Proceedings of the 5th Grid Computing Environments Workshop, GCE 2009, November 20, 2009, Portland, Oregon, USA
Source: DBLP

ABSTRACT This paper presents our work of enhancing the existing cyberinfrastructure using Web 2.0 technologies for delivering real time satellite data to a broader audience. As a resource provider on the TeraGrid, Purdue University hosts several data collections for earth and environmental research, including a large number of satellite data products that are received and generated in real time at the Purdue Terrestrial Observatory (PTO). A science gateway portal, named PRESTIGE, has been developed as the access point to services related to the satellite data generated at PTO. It remains a major challenge to help potential users easily discover the data products that are available and access them based on their needs. In an effort to address this challenge, we developed different interfaces for different user groups. We use the Google gadget as a new way to deliver satellite data and information to a broad user community. Three satellite data viewer gadgets have been developed and deployed. They connect to a data generation and processing system at the backend. The gadgets embrace the recent Web 2.0 technologies in bringing the rich access and sharing capabilities available in the general cyberspace to the scientific user communities.

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    ABSTRACT: This paper presents the design and implementation of a web-enabled platform for enhancing user data access experience in a satellite data portal. The platform integrates a number of user-oriented capabilities including the subscription, production, dissemination, and visualization of custom satellite remote sensing data hosted at the Purdue Terrestrial Observatory (PTO). Different from a traditional remote sensing system, the PTO data portal aims at enabling access to real-time satellite remote sensing data products for a large, diverse user community. Central to this system is a user-driven publish/subscribe model that empowers users with the ability to specify, control, and receive satellite data products without having to go through the time-consuming and error-prone manual process of configuring the system to generate the requested data. The user-oriented capabilities are implemented on top of a service-oriented architecture (SOA) backed by an existing satellite data receiving and processing backend. To control the processing of user data subscription requests, a workflow is created by leveraging the SOA interfaces and mechanisms. The user-oriented platform also embraces the recent Web 2.0 technologies in bringing the rich access, sharing, and collaboration capabilities available in the general cyberspace to the scientific user communities.


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