modified from OHPDMC http://ohpdmc.eri.u-tokyo.ac.jp
Seismic Waveform Data Integration Software for Network Data Center
- NINJA -
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1. Overview
There are several broadband seismograph networks installed by different institutions in the Western Pacific region. If the data are appropriately gathered from these networks, they effectively constitutes a dataset from a very dense broadband network, and such a dataset should be very useful to determine high resolution seismic structures and seismic processes. However, in the current distribution system, such studies require somewhat tedious procedures for collecting the waveform data of each data center with different interfaces.
To promote further utilization of the dataset, we propose a "Networked Data Center.'' In this system, seismic waveform data are managed by the data center of each respective network, but it is networked via the Internet. If a user requests data from the data request interface (we call it the "dispatcher''), the dispatcher will collect the requested waveform data from each data center using Java RMI and returns the resultant SEED volume to the user.
NINJA (New Interface for Networked Java Applications) is the personal dispatcher which provides user requests interface to this "Networked Data Center'' on each users' computer. Using this software, users can download all up-to-date seismic waveform data of the various seismograph networks with a unified interface.
modified from OHPDMC http://ohpdmc.eri.u-tokyo.ac.jp
2. Feature of NINJA
(1) User Friendly GUI Interface
(2) Availability of Both Continuous Data and Event FARM Data
(3) Multi-Platform
Java is adopted as the programming language of NINJA, thus NINJA is
executable on any Operating System which has Java execution environments.
(4) High Expansiveness by Object-Oriented Development
Object-oriented development is adopted, as it allows easier system
expansion.
(5) Real Time Update of Available Data
Available data is managed by directory service, as it allows real time
reflection of available networks and stations without any special setup.
3. System Requirements
(1) Hardware
PC/AT compatible machine (HDD: 1.5MB, MEM: 20MB)
Solaris executable UNIX workstation (HDD: 1.5MB, MEM: 20MB)
Macintosh (HDD: 1.5MB, MEM: 20MB)
(2) OS
Windows 95/98/NT/2000.
Solaris 2.6 or higher.
MacOS 9. (MRJ is required for MacOS 8)
(3) Java Running Environment
JRE 1.1.4 or higher (JRE 1.1.8 is recommended)
International version JRE is required for non-English Windows and Solaris.
(4) TCP/IP Network Environment
4. NINJA Development Staff
Chief Director
Yoshio FUKAO
ERI, Univ. of Tokyo, Japan
Director
Nozomu TAKEUCHI ERI,
Univ. of Tokyo, Japan
Seiji TSUBOI
Fac of Sci, Yokohama City Univ., Japan
Shingo WATADA
ERI, Univ. of Tokyo, Japan
Development
Masatoshi MURATA
Fujitsu, Japan
Toshiyuki NAKASHIMA Fujitsu, Japan
Hiroyuki UESAKA
Fac of Regional Sci, Toyama Univ International Studies, Japan
Yoshiaki MATSUZAKI Fujitsu, Japan
Yoshifumi UJIBASHI
Fujitsu, Japan
Programming
Takashi FURUKAWA Information
& Science Techno-System Co., Japan
Tomoaki IKEUCHI
Information & Science Techno-System Co., Japan
Minoru KOBAYASHI Fujitsu,
Japan
System Management
Yumiko TANABE
ERI, Univ. of Tokyo, Japan
Yuji NAGAHORI
Information & Science Techno-System Co., Japan
Financial Management
Nobuyo MATSUSHIMA ERI, Univ. of Tokyo, Japan
Akiko TAGAWA
ERI, Univ. of Tokyo, Japan
Hanae TSURUSAKI
Fujitsu, Japan
Takashi AONO
Fujitsu, Japan
Please contact to takeuchi@eri.u-tokyo.ac.jpif
you have any question, comment or request.
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Copyright (C) 2000 Earthquake Research Institute, Univ. of Tokyo
All Rights Reserved.