Development and Utilization of High Precision Digital Elevation Data taken by Airborne Laser Scanner

Details Development and Utilization of High Precision Digital Elevation Data taken by Airborne Laser Scanner Development and Utilization of High Precision Digital Elevation Data taken by Airborne Laser Scanner

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005bgsi...52...13a&link_type=abstract

Bulletin of the Geographical Survey Institute (ISSN 0373-7160), Vol. 52, p. 13 - 21 (March 2005)

Physics

Elevation Data, Laser Scanner

Scientific paper

Disasters caused by heavy rain in urban areas bring a damage such as chaos in the road and railway transport systems, power failure, breakdown of the telephone system and submersion of built up areas, subways and underground shopping arcades, etc. It is important to obtain high precision elevation data which shows the detailed landform because a slight height difference affects damages by flood very considerably. Therefore, The Geographical Survey Institute (GSI) is preparing 5m grid digital terrain model (DTM) based on precise ground elevation data taken by using airborne laser scanner. This paper describes the process and an example of the use of a 5m grid digital data set.

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