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Scientific Gateway and Visualization Tool
Eva Pajorová and Ladislav Hluchý
Institute of Informatics, Slovak Academy of Sciences, Slovakia
utrrepaj@savba.sk
Abstract. The science gateway is important component of many large-scale
Earth, astronomical, environmental and natural disasters science projects.
Developing the sciences portals and the science gateways is coverage of
requirements of large scale sciences such as Earth science, astronomy and all
sciences which are using last one platform of HPC (high-performance
computing infrastructure) as are grid, cloud or cluster computing. The paper
shows the main position of visualization in Science Gateway and describes
architecture of the Visualization Tool (VT), for Earth and astrophysics
simulations and shows some examples. VT is integrated in the web portal, as is
e-science gateway for astronomy and astrophysics.
Keywords: Scientific gateway, Earth science, Grid.
1 Introduction
Since 2004 numerous scientific gateways have been developed lot of scientific
gateways funded by the Tera-Grid Science Gateways program [1]. The gateway
paradigm requires gateway developers to compile and install scientific applications on
a variety of HPC clusters available from the resource providers in TeraGrid, to build
service middleware for the management of the applications, and to develop web
interfaces for delivering the applications to a user's web browser. Consequently, lot of
web-service frameworks [2], [3], [4] have been designed and applied in building
domain-specific science gateways. Some of them enable workflow based on the web
services [4], but they commonly don't provide solutions to support web interface
generation. Developers were usually hindered. Usually they need to spend a lot of
time learning web programming, especially JavaScript and AJAX Technologies to
implement a user-friendly and interactive web interface to these services.
Scientific gateways are able to provide a community-centric view, workflow/
dataflow services and a strong support in accessing the last one platform of HPC
infrastructure including grid and cloud based resources. In each of science contexts,
scientific gateways play a key role since they allow scientists to transparently access
distributed data repositories (across several domains and institutions) and metadata
sources to carry out search & discovery activities, as well as visualization and analysis
ones, etc. Finally, scientific gateways can play an important role in training students (at
academic level) in different scientific disciplines, attract new users and represent a
relevant centralized knowledge repository in the sciences context. It is also a
collaborative cyber-environment on which researchers working the same or similar
 
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