New ship-borne gravimeter NIPR-ORI Model II installed on board icebreaker SHIRASE

A newly-designed ship-borne gravimeter NIPR-ORI Model II to be used for the Japanese Antarctic Research Expedition is described. This meter is a second version of the previously used NIPR-ORI Model I. The new gravimeter is equipped with the inertial grade gyro called TDG (tuned dry gyro). The first...

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Bibliographic Details
Main Authors: Jiro Segawa, Katsutada Kaminuma, Hiroaki Toh, Yoichi Fukuda, Chul Soo Yang
Format: Article in Journal/Newspaper
Language:English
Japanese
Published: National Institute of Polar Research 1988
Subjects:
Geography (General)
G1-922
Antarctic
Antarc*
Icebreaker
Online Access:https://doi.org/10.15094/00008597
https://doaj.org/article/080031b367bf484c849c3df9a7d18ea4
Description
Summary:A newly-designed ship-borne gravimeter NIPR-ORI Model II to be used for the Japanese Antarctic Research Expedition is described. This meter is a second version of the previously used NIPR-ORI Model I. The new gravimeter is equipped with the inertial grade gyro called TDG (tuned dry gyro). The first performance test was conducted on board the R/V HAKUHO MARU of the Ocean Research Institute, University of Tokyo in 1987,and it was found that the overall accuracy of the meter after the correction for the Eotvos effect caused by ship's speed was better than ±0.5 mgal.

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