The third-generation meteorological satellites equipped with highly-improved imagers provide a huge amount of Earth observation data. Himawari-8 is the first unit of the Japan Meteorological Agency’s third generation of geostationary satellites. After its starting operation in 2015, there are several websites that provide remotely sensed images in real time. However, it is hard to develop a real-time and full-resolution website, due to the large amount of data to be handled. Himawari-8 real-time web is only one website that provides full-resolution remotely sensed images in real time. To reduce network traffic and increase the access speed of it from other countries out of Japan, mirror websites of each country are needed. In this paper, we propose a cost-effective mirroring system for the Himawari-8 real-time web. A mirroring model is introduced to avoid the problem of big data processing in the mirror websites. We adopt a file copy tool based on high-performance and flexible protocol (HpFP) to transfer meteorological satellite data from the Himawari-8 real-time web to the mirror websites. Our first target is Thailand, one of the most disaster-prone countries in South-East Asia. The mirror website is set up at an institution in Thailand connected via collaborative international networks, e.g., Japan Gigabit Network (JGN) and Asia Pacific Advanced Network (APAN). The results show that the proposed mirroring system is able to overcome the big data issue by reducing the central processing unit (CPU) usage in the mirror website and transferring remotely sensed image files at high speed over international networks even under packet loss conditions. This suggests that our mirroring system has a potential for deployment in other Asian and Oceanian countries.

配备高度改进的成像器的第三代气象卫星可提供大量的地球观测数据。Himawari-8是日本气象厅第三代对地静止卫星的第一台装置。自2015年开始运营以来，有几个网站可以实时提供遥感图像。但是，由于要处理大量数据，因此很难开发实时和全分辨率的网站。Himawari-8实时Web只是一个可以实时提供全分辨率遥感图像的网站。为了减少网络流量并提高从日本以外的其他国家/地区的访问速度，需要每个国家的镜像网站。在本文中，我们为Himawari-8实时网络提出了一种经济高效的镜像系统。为了避免镜像网站中的大数据处理问题，引入了镜像模型。我们采用基于高性能和灵活协议（HpFP）的文件复制工具，将气象卫星数据从Himawari-8实时网络传输到镜像网站。我们的第一个目标是泰国，它是东南亚最容易受灾的国家之一。镜像网站在泰国的机构中建立，该机构通过协作国际网络（例如日本千兆网络（JGN）和亚太先进网络（APAN））进行连接。结果表明，所提出的镜像系统能够通过减少镜像网站中的中央处理单元（CPU）的使用量，甚至在丢包情况下，通过国际网络高速传输遥感图像文件来克服大数据问题。