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A Web Based Workflow System for Distributed Atmospheric Data Processing

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4 Author(s)
Jie Cheng ; Comput. Network Inf. Center, Chinese Acad. of Sci., Beijing, China ; Xiaoguang Lin ; Zhou, Yuanchun ; Li, Jianhui

Distributed atmospheric data are often stored and managed in diverse regional and global repositories. The scientific process requires composition of these resources to solve a specific atmospheric science problem. A challenge is how to harvest data and models for designing and executing experiments in a seamless manner. Moreover, data intensive scientific experiments with large-scale scientific data processing are iterative, dynamic and human centered. In particular, the atmospheric scientific experiments usually include some fixed steps, such as data discovery, access, preprocessing, transformation, visualization. A Web service enabled workflow system is a flexible tool for accessing distributed scientific data, and executing complex analysis on it. In this paper, we describe a four-layered architecture of the workflow system, which consists of Web interaction layer, workflow engine layer, workflow components layer and resource layer. We also develop an intuitive and easy-to-use Web based toolkit and apply it to atmospheric data processing.

Published in:

Parallel and Distributed Processing with Applications, 2009 IEEE International Symposium on

Date of Conference:

10-12 Aug. 2009