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1995 Fiscal Year Final Research Report Summary

DEVELOPMENT AND APPLICATION OF AIRBORNE GRAVIMETRY--UTILIZATION OF KINEMATIC GPS METHOD

Research Project

Project/Area Number 05554009
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 固体地球物理学
Research InstitutionUNIVERSITY OF TOKYO

Principal Investigator

SEGAWA Jiro  OCEAN RESEARCH INSTITUTE,UNIVERSITY OF TOKYO PROFESSOR, 海洋研究所, 教授 (60013570)

Co-Investigator(Kenkyū-buntansha) FUKUDA Yoichi  FACULTY OF SCIENCE,KYOTO UNIVERSITY,ASSOCIATE PROFESSOR, 理学部, 助教授 (30133854)
KAMINUMA Katsutada  NATIONAL INSTITUTE OF POLAR RESEARCH,PROFESSOR, 教授 (90012921)
KOIZUMI Kin-ichiro  OCEAN RESEARCH INSTITUTE,UNIVERSITY OF TOKYO ASSISTANT, 海洋研究所, 助手 (70107457)
TOH Hiroaki  OCEAN RESEARCH INSTITUTE,UNIVERSITY OF TOKYO ASSISTANT, 海洋研究所, 助手 (40207519)
FUJIMOTO Hiromi  OCEAN RESEARCH INSTITUTE,UNIVERSITY OF TOKYO ASSOCIATE PROFESSOR, 海洋研究所, 助教授 (50107455)
Project Period (FY) 1993 – 1995
Keywordscm positioning / sea surface height / geoid / Tansei-Maru / GPS positioning of airplane / CESNA402 / Airborne gravimetry / Gravimeter NIPR-ORI
Research Abstract

1. cm positioning experiment and measurement of sea surface height/geoid on board a cruising vessel
3 GPS receivers were installed at the same time on board Tansei-Maru of the Ocean Research Institute. University of Tokyo, to coduct a 3-dimensional positionings of the ship and to measure sea surface height. The experiment was carried out from 13 November to 25 November, 1995. From the positionings of 3 GPS antennas a 3-dimensional motion of the ship can be determined. The GPS base stations on land were settled at the Ocean Research Institute, University of Tokyo and the Disaster Prevention Research Institute. Kyoto University. By this measurement the geoid at Sagami Bay and east of Kii Peninsula was determined
2.GPS Positioning and Test of Gyro Compass on board an airplane
Actual experiments using an airplane were conducted. The airplane is CESNA 402. The first test was carried on 8-11 December 1995. In this experiment GPS receivers and a gyrocompass were installed on board the airplane. The gravimeter was not installed. The survey area is the Seto Island Sea and the airport is Yao. OSAKA.4 flights were done and obtained a good gps
positioning results. Test of gyrocompass which was originally for marine use proved that the gyro did not suit airplane use. requiring a new substitute.
3.Gravity Measurement on the Air
A gravimeter was installed on board CESNA 402 and gravity measurement was tested from 25 to 27 January 1996. The gravimeter installed was a modified NIPR-ORI2 which is originally for marine use. The vertical gyroscope of the gravimeter was adjusted to better match the airborne use. but it did not work so well. The measurement of gravity showed an unsatisfactory result, suggesting the use of a laser gyroscope and the decrease of mechanical vibrations of the airplane.

  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 今西祐一,瀬川爾朗: "GPS干渉測位の船の位置決定への応用" 地球惑星科学関連学会1994年合同大会要旨集. (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 瀬川爾朗: "移動体GPS測位の精度検証" GPS研究会94報告書 1994年12月15日 東京大学地震研究所にて開催.87-93 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 福田洋一: "日本周辺のジオイドモデルの改良" 月刊地球. 16. 611-615 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 瀬川爾朗: "Design and prospect of Air-Borne Gravimetry in Japan" Abstract,XXL IUGG Gemeral Assembly,Boulder. (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yuichi IMANISHI and Jiro SEGAWA: "Application of GPS interferometric positionings to ships." Abstract, General Assembly of Earth and Planetary Sciences.(1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Jiro SEGAWA: "Accuracy estimation of GPS positioning of a moving platform." Proc. of GPS study meeting 94, held 15 Dec. 1994 at ERI,Univ. of Tokyo. 87-93 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoichi FUKUDA: "Improvement of the model of geoid around the Japanese Islands" Earth Monthly. 16. 611-615 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Jiro SEGAWA: "Design and prospect of the airborne gravimetry in Japan" Abstract, 21st IUGG General Assembly, Boulder. (1995)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-16  

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