Transfer, Archives and Public Use of Digital Data for Solid Earth Geophysics at Syowa Station, Antarctica by Computer Network

• Main Authors: Masaki KANAO, Katsutada KAMINUMA, Kazuo SHIBUYA, Yoshifumi NOGI
• Format: Article in Journal/Newspaper
• Language: English; Japanese
• Published: National Institute of Polar Research 1995
• Subjects: Geography (General); G1-922; Antarctic; Syowa Station; Antarc*; Antarctica; National Institute of Polar Research
• Online Access: https://doi.org/10.15094/00008907; https://doaj.org/article/62e8cbd7d47e48eabb36d573de173c7b

Data transmission of solid earth geophysics between Syowa Station (69.0°S, 39.6°E) and the National Institute of Polar Research (NIPR) was successfully made by the 34th Japanese Antarctic Research Expedition (JARE-34) in 1993 via the INMARSAT satellite telecommunication system. In 1994,data transmission from the Earth Science Laboratory (ESL) was started by JARE-35 using UUCP (Unix-to-Unix Copy) protocol for the file transfer. Electronical-mail services are also started by JARE-36 in May 1995; this is useful to exchange observational information easily. In addition to the hypocenters and phase arrival-times detected at Syowa Station, some digital waveform data from broadband seismometers and a superconducting gravity meter for recent several years are available from Internet services. They are stored in the directories under/pub/of UNIX workstation (IP address : 133.57.3.2), and accessible by use of 'anonymous ftp' command. We basically give priority of any data obtained at Syowa Station to the wintered-over JARE members with time limit of two years, and the data after the priority period go into a release mode. In this paper, the data transmission between Syowa Station and NIPR, the data archives in UNIX workstation, and data release using computer network are explained. The availability of digital waveform data of the other Antarctic stations is also introduced.