A SEAFLOOR GEOMAGNETIC OBSERVATION IN BREID BAY, PRINCESS RAGNHILD COAST, ANTARCTICA

An ocean bottom magnetometer was installed in Breid Bay and was successfully retrieved during the 29th Japanese Antarctic Research Expedition (JARE-29). The seafloor geomagnetic observation provided a time series of the three-component geomagnetic field once every minute and this time series continu...

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Bibliographic Details
Main Authors: トウ ヒロアキ, サトウ ナツオ, セガワ ジロウ, Hiroaki TOH, Natsuo SATO, Jiro SEGAWA
Format: Report
Language:English
Published: Ocean Research Institute, University of Tokyo 1989
Subjects:
Antarctic
Syowa Station
Breid Bay
Princess Ragnhild Coast
Antarc*
Antarctica
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2587
http://id.nii.ac.jp/1291/00002587/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2587&item_no=1&attribute_id=18&file_no=1
Description
Summary:An ocean bottom magnetometer was installed in Breid Bay and was successfully retrieved during the 29th Japanese Antarctic Research Expedition (JARE-29). The seafloor geomagnetic observation provided a time series of the three-component geomagnetic field once every minute and this time series continues as long as 36 days. The data obtained were analyzed by spectral analysis methods and compared with the simultaneous data obtained at Syowa Station. The obtained data proved almost satisfactory except for some instrumental limitations such as a lack of a geographical compass equipped with the magnetometer. The result reveals the effectiveness of an ocean bottom magnetometer as a temporal geomagnetic station even in such a logistically difficult region as Antarctica.

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