摘要
作为建成后世界最大的平方公里阵列射电望远镜(SKA),在各个观测阶段产生的海量数据对网络传输提出了更高的要求。本文讨论了海量数据生成并通过高速国际互联网将数据传输到分布全球的区域数据中心的策略,通过与目前的SKA先导项目MWA和ASKAP、探路者项目LOFAR的合作来探讨SKA1建成后在全球范围内传输和分享数据的应对措施和解决方案。
The Square Kilometre Array (SKA),to be constructed soon,will be the largest radio telescope in the world after completion.The tremendous data volume generated by the SKA yields a lot of serious technique challenges,including the data transferring amongst the geographically distributed regional data centres. The present paper discusses the strategies of data production,and the distribution of the massive data to regional data centres across the world through the high-speed internet.The data transferring method between the planned China SKA data centre in Shanghai and the currently operational SKA precursors andpathfinders,such as the MWA and ASKAP in Australia and LOFAR in the Netherlands,is introduced,and preliminary results are presented.These offer helpful guidance for the application in the first phase of SKA (SKA1)in the near future.
作者
郭绍光
郑小盈
毛羽丰
郭铨
安涛
陆扬
陈中
劳保强
陈骁
赵振
王玲玲
Guo Shaoguang;Zheng Xiaoying;Mao Yufeng;Guo Quan;An Tao;Lu Yang;Chen Zhong;Lao Baoqiang;Chen Xiao;Zhao Zhen;Wang Lingling(Shanghai Astronomical Observatory,Chinese Academy of Sciences,Shanghai 200030,China;Shanghai Advaneed Researeh Institute,Chinese Aeademy of Sciences,Shanghai 201210,China;Bureau of Frontier Sciences and Education Chinese Academy of Sciences,Beijing 100864,China)
出处
《科研信息化技术与应用》
2018年第3期3-13,共11页
E-science Technology & Application
基金
国家重点研发计划大科学装置前沿研究(2018YFA0404603)
中国科学院国际合作局对外合作重点项目(114231KYSB20170003)
国家自然科学基金(11873079)
国家自然科学基金委员会-中国科学院天文联合基金(U1831204)
关键词
平方公里阵列
大数据
数据传输
square kilometre array
big data
data transferring
