The development of a geospatial data Grid by integrating OGC Web services with Globus‐based Grid technology

Abstract

SUMMARYGeospatial science is the science and art of acquiring, archiving, manipulating, analyzing, communicating, modeling with, and utilizing spatially explicit data for understanding physical, chemical, biological, and social systems on the Earth's surface or near the surface. In order to share distributed geospatial resources and facilitate the interoperability, the Open Geospatial Consortium (OGC), an industry-governmentacademia consortium, has developed a set of widely accepted Web-based interoperability standards and protocols. Grid is the technology enabling resource sharing and coordinated problem solving in dynamic, multi-institutional virtual organizations. Geospatial Grid is an extension and application of Grid technology in the geospatial discipline. This paper discusses problems associated with directly using Globus-based Grid technology in the geospatial disciplines, the needs for geospatial Grids, and the features of geospatial Grids. Then, the paper presents a research project that develops and deploys a geospatial Grid through integrating Web-based geospatial interoperability standards and technology developed by OGC with Globus-based Grid technology. The geospatial Grid technology developed by this project makes the interoperable, personalized, on-demand data access and services a reality at large geospatial data archives. Such a technology can significantly reduce problems associated with archiving, manipulating, analyzing,

Building an Elastic Parallel OGC Web Processing Service on a Cloud-Based Cluster: A Case Study of Remote Sensing Data Processing Service

“…Many studies based on the OGC WPS have been conducted [15,16]. NASA, USGS, and the USDA have built a series of SOA-based applications for EOS data sharing and remote sensing analysis [17,18]. For the outstanding characters of the Web service, SOA-based distributed geospatial processing has become a major method of distributed geospatial processing [19,20].…”

WPS mediation: An approach to process geospatial data on different computing backends

“…Due to their respective nature (e.g., targeted audience, technicalities, standards) connecting Grids and SDIs is not a trivial task, and this procedure requires extensions and customizations (Di et al, 2008). In consequence, a solution is needed in order to grid-enabled OWS and especially WPS, while hiding the complexity of the Grid (and other distributed computing infrastructures) to SDI users.…”

“…Moreover, this facilitates and allows easier compliance with standards like the Open Grid Forum (OGF), Open Grid Services Architecture (OGSA), the Organization for the Advancement of Structured Information Standards (OASIS), and the Web Service Resource Framework (WSRF) (Yanfeng et al, 2006;. Despite the fact that integrative gridification is the most promising type for SDI support, this approach remains rather complex in its implementation because it requires important developments to transform OWS into Grid services (Yanfeng et al, 2006;Di et al, 2008;Muresan et al, 2008;Mazzetti et al, 2009). Moreover, the dependency of this approach on various middleware results in specific OWS middleware implementations.…”

“…Nevertheless, they are in general dependent on the middleware used by the distributed computing infrastructure: some implementations are working on gLite 3 (Muresan et al, 2008;Mazzetti et al, 2009), Globus 4 (Di et al, 2008), or Unicore 5 . In theory, a developed process might be reused across different WPS frameworks.In practice, this is limited due to the use of different programming languages and Application Programming Interfaces (APIs).…”

Interoperable processing of digital elevation models in grid infrastructures

“…Former work affected linking Grid technology with OGC Web services is done by Di et al (2003Di et al ( , 2008. Currently there are two approaches for grid-enabling of a WPS.…”