Establishment of an Absolute Gravity Network in East-Asia and Precise Monitoring of Gravity Changes

东亚绝对重力网的建立及重力变化的精确监测

• 批准号: 14253004
• 负责人: TAKEMOTO Shuzo
• 金额: $ 26.54万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14253004/
• 关键词: Absolute Gravimeter; Superconducting Gravimeter; Gravity Standard Network; East Asia; China; Indonesia; Malaysia; Philippines; 絶対重力基準網; 絶対重量計; 超伝導絶対重量計; 絶対重力規準網; 超伝導力計; 重力測定

Taking part in the Asia-Pacific Space Geodynamics (APSG) Project cooperation campaigns in IAG and the work plan in the Permanent Committee on GIS Infrastructure for Asia & the Pacific (PCGIAP), we have collaborated to establish the Absolute Gravity Standard Station Network in East Asia and South-East Asia (AGSSN-ESEA) with FG-5 absolute gravimeters. During the period from 2002 to 2005, we have already determined absolute gravity values in the order of μGal at Wuhan, Nanning, Shanghai, Beijing, Kunming, Lhasa, Hong-Kong Wulumuqi, Xi'an and Xining in China, Hsinchu in Taiwan, Bandung, Yogyakarta Cibinong and Pontianak in Indonesia, Kuala Lumpur and Kota Kinabalu in Malaysia, Bangkok and Cheng-Mai in Thailand, and Manila in Philippines as well as Kyoto, Esashi, Matsushiro, Kamioka, Muroto, Aso, Mizunami and Naha in Japan. In this campaign, we performed first AG measurements in Indonesia, Malaysia and Philippines and contributed to establish national gravity standards in these countries. As an extension of this campaign in the southern hemisphere, we have conducted absolute gravity measurements in Perth and Canberra in Australia, and the Syowa Station in Antarctica in 2003-2004.As a result of comparison of AG values obtained from different FG-5 meters in Wuhan, Beijing, Hong Kong, Hsinchu and Kyoto, it was revealed that difference in measured values depending on each instrument is 11μGal at the most. In Wuhan, Bandung, Kyoto, Esashi, Matsushiro and Kamioka, we have determined SG calibration factors within the accuracy of the order of 0.1% from inter-comparison of SG and AG meters.We are expecting that relative vertical movements between the continent and island arc can be detected in the order of 1cm by the repeated AG measurements at stations in AGSSN-ESEA at interval of 5 to 10 years.

我们参与了国际空间地球动力学组织的亚太空间地球动力学项目合作活动和亚洲及太平洋地理信息系统基础设施常设委员会（PCGIAP）的工作计划，合作建立了东亚和东南亚绝对重力标准站网络（AGSSN-ESEA），配备了FG-5绝对重力仪。从2002年到2005年，我们已经在武汉、南宁、上海、北京、昆明、拉萨、香港乌鲁木齐、中国西安、西宁、台湾新竹、印度尼西亚万隆、日惹和蓬甸、马来西亚吉隆坡和哥打京那巴鲁、泰国曼谷和成迈、菲律宾马尼拉以及日本京都、Esashi、松城、神冈、木户、麻生、水南和那叶等地确定了μGal量级的绝对重力值。在这次活动中，我们在印度尼西亚、马来西亚和菲律宾进行了首次重力测量，并为这些国家建立国家重力标准做出了贡献。作为南半球这项活动的延伸，我们于2003-2004年在澳大利亚的珀斯和堪培拉以及南极洲的Syowa站进行了绝对重力测量。通过对武汉、北京、香港、新竹和京都不同FG-5米测得的AG值进行比较，发现各仪器测得的AG值差异最大为11μGal。在武汉、万隆、京都、Esashi、Matsushiro和神冈，我们通过对SG和AG仪表的相互比较，确定了准确度在0.1%左右的SG校准因子。我们期望通过AGSSN-ESEA站点每隔5 ~ 10年的重复AG测量，可以检测到大陆和岛弧之间的相对垂直运动，其幅度约为1cm。

项目成果

東アジア・東南アジアにおける絶対重力基準網の確立

建立东亚和东南亚绝对重力参考网

• 发表时间: 2006
• 期刊: 測地学会誌 第52巻,第1号
• 作者: 竹本修三;福田洋一;東敏博他
• 通讯作者: 東敏博他

竹本修三: "最新の測地計測技術で得られた地球変動"第22回測量技術講演会資料(国土交通省近畿地方測量部). 22号. 3-12 (2003)

武本修三：《用最新大地测量技术观测到的全球变化》第22次测量技术讲座资料（国土交通省近畿地方测量部）第22.3-12号（2003年）。

東敏博, 福田洋一, 竹本修三: "京都大学重力基準点(京都C)における絶対重力変化"測地学会誌. 第48巻,第3号. 149-152 (2002)

Toshihiro Azuma、Yoichi Fukuda、Shuzo Takemoto：“京都大学重力控制点（京都 C）的绝对重力变化”大地测量学会杂志，第 48 卷，第 3 期。149-152（2002 年）。

Hydrological effects on the superconducting gravimeter observation in Bandung

• DOI: 10.1016/j.jog.2005.08.030
• 发表时间: 2006
• 期刊: Journal of Geodynamics
• 影响因子: 2.3
• 作者: M. Abe;S. Takemoto;Y. Fukuda;T. Higashi;Y. Imanishi;Sachiko Iwano;S. Ogasawara;Yuki Kobayashi;S. Dwipa;D. S. Kusuma

Precise gravity measurements in East Asia and South-East Asia for geodynamic studies

东亚和东南亚的精确重力测量用于地球动力学研究

• 发表时间: 2004
• 期刊: Proceedings of the International Conference on Applied Geophysics, November 26-27, 2004, Thiang Mai, Thailand
• 作者: Takemoto;S.;Y.Fukuda;T.Higashi;H.Nakagawa・他
• 通讯作者: H.Nakagawa・他