National High Energy Physics Science Data Center

The National High Energy Physics Science Data Center (NHEPSDC) is a repository for high-energy physics. In 2019, it was designated as a scientific data center at the national level by the Ministry of Science and Technology of China (MOST). NHEPSDC is constructed and operated by the Institute of High Energy Physics (IHEP) of the Chinese Academy of Sciences (CAS). NHEPSDC consists of a main data center in Beijing, a branch center in Guangdong-Hong Kong-Macao Greater Bay Area, and a branch center in Huairou District of Beijing. The mission of NHEPSDC is to provide the services of data collection, archiving, long-term preservation, access and sharing, software tools, and data analysis. The services of NHEPSDC are mainly for high-energy physics and related scientific research activities. The data collected can be roughly divided into the following two categories: one is the raw data from large scientific facilities, and the other is data generated from general scientific and technological projects (usually supported by government funding), hereafter referred to as generic data. In the past three years, the average data increment is about 10 PB per year. By integrating data resources with the IT environment, a state-of-art data process platform is provided to users for scientific research, the volume of data accessed every year is more than 400 PB with more than 10 million visits.

国家高能物理科学数据中心（National High Energy Physics Science Data Center, NHEPSDC）是高能物理领域的专业数据资源库。2019年，该中心被中国科学技术部（Ministry of Science and Technology of China, MOST）认定为国家级科学数据中心。该中心由中国科学院（Chinese Academy of Sciences, CAS）下属的高能物理研究所（Institute of High Energy Physics, IHEP）负责建设与运营。国家高能物理科学数据中心设有北京主数据中心、粤港澳大湾区分中心以及北京怀柔区分中心三处节点。其核心使命是为用户提供数据采集、归档、长期留存、访问与共享、软件工具以及数据分析等全链条服务，服务对象主要为高能物理及相关科研活动。该中心采集的数据大致可分为两类：一类为来自大型科学装置的原始实验数据，另一类为一般科技项目（通常由政府资助）产生的数据，下文简称通用数据。近三年来，该中心年均数据增量约为10拍字节（PB）。通过整合数据资源与IT基础设施，该中心打造了顶尖的科研数据处理平台，可为用户支撑科学研究；年均数据访问量超过400拍字节（PB），年访问人次超1000万。