Journal of Geo-information Science >
Services of Earth System Science Data Sharing Based on Cloud Computing
Received date: 2013-07-01
Revised date: 2013-11-01
Online published: 2014-03-10
Geoscience is a science of data-intensive research, whose process is dependent on the data resources and information platform. Especially for earth system science, in order to understand how the earth runs as a whole and to reveal the driving force of global environmental change, it is urgent to implement data sharing. Early geoscience data sharing services are primarily of data concentration and archiving by the government behaviors, which has many prominent problems such as imbalanced load of data service, simplex pattern of integrated data, indistinctive effect of data services, etc. We aimed to set up a new geoscience research environment that every researcher is both the user and the contributor of geoscience resources. With the present of Web2.0 and the emergence of cloud computing technology, data sharing mode has undertaken great changes. This paper presented the concept model, function structure and technology system of earth system science data sharing based on cloud computing, and built a prototype system of "geoscience data sharing services based on cloud service". This system embodies a transition of service mode by Infrastructure as a Service (IaaS), Data Resources as a Service (DaaS) and Data Software as a Service (SaaS). It ensures data security and realizes the Data Access Load Balancing based on the master-slave data storage technology. In the cloud service system of data sharing environment for geosciences research, everyone is both data producer and user. It can solve the data sharing contradiction between "user and data" by providing data publishing, data needs publishing, data finding/sharing, data needs finding/feedback and other functions. Finally, through the study of earth system science based on cloud computing and the key technique of data sharing we have built a prototype system to validate the framework. The cloud service system can improve the sharing and utilization of resources, enhance the on-demand service mode and provide an extensive and compatible scientific data sharing environment.
Key words： data service; data sharing; earth system science; cloud computing
MIAO Ru, ZHU Yunqiang, SONG Jia, FENG Min, PAN Peng . Services of Earth System Science Data Sharing Based on Cloud Computing[J]. Journal of Geo-information Science, 2014 , 16(2) : 264 -272 . DOI: 10.3724/SP.J.1047.2014.00264
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