写真測量とリモートセンシング
Online ISSN : 1883-9061
Print ISSN : 0285-5844
ISSN-L : 0285-5844
正標高の導入―もう一つの測地成果2000―
小白井 亮一黒石 裕樹
著者情報
ジャーナル フリー

2004 年 43 巻 1 号 p. 61-68

詳細
抄録

The vertical datum of Japan, which is realized with official heights at the benchmarks, had been updated for the first time in about 30 years and the new heights were put in force in April 2002. The heights were computed from the latest leveling data throughout Japan and detailed land gravity data were taken into account, for the first time in Japan, for yielding Helmert orthomeitric heights. On this occasion, the paper tries to give readers a brief description of the height systems, their relationship with gravity and the computation method employed, and the current, more precise vertical datum of Japan updated from the previously-employed normal orthometric heights.

著者関連情報
© 社団法人 日本写真測量学会
前の記事 次の記事
feedback
Top