Physics
Scientific paper
Mar 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005bgsi...52....1t&link_type=abstract
Bulletin of the Geographical Survey Institute (ISSN 0373-7160), Vol. 52, p. 1 - 11 (March 2005)
Physics
Gps, Geodetic Reference System, Real-Time Positioning
Scientific paper
The recent change of the geodetic reference system of Japan from the Tokyo Datum to the Japanese geodetic Datum 2000 (JGD2000) is an ongoing process to keep the system precise and up-to-date for the various demands of modern society. In the rapidly changing archipelago over tectonic plate converging zones and with the advent of an information society, future directions of the national geodetic reference system require special thought. A combination of GPS and information technology is now leading to the emergence of a Location Base Service (LBS) where positional information plays a key role to relate real space to cyberspace, opening up a geo-information society. Although the basic role of the geodetic reference system to control precise coodinates for surveying never change, a new role to support precise, real-time positioning should be developed. In addition, incessant crustal deformation in Japan should be properly handled by a semi-dynamic correction system for precise surveys with GPS. This paper presents a future design of the national geodetic reference system, introducing the concept of Geo-Referencing Infrastructure for Dynamic Japan (GRID-Japan). Through the partnership of local governments and the private sector, GSI will start the process of realizing the concept of GRID-Japan in the next ten years.
Komaki Kazuo
Tsuji Hiromichi
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