This project summarizes the result of the absolute gravity measurement campaign in the AGTO project, and from the observations of two SG (serial no. 48 and 49) in Hsinchu. The major findings and potential applications of this project are listed below:
1. The mean gravity and vertical rates at AGTO sites are -1.39±4.21 μgal year-1 and 0.50±0.94 cm year-1. The sediment thicknesses changes near AG6 and AG3 due to landslides caused by Typhoon Morakot are 2.45 m and 1.25 m.
2. The average rate of gravity change from 2005 to 2008 is -0.58 μgal year-1 in Taiwan. Using repeated absolute gravimetric and levelling measurements to determine gravity changes at islandwide (Taiwan) stations, and the preliminary causes of such changes are identified with the help of GPS and levelling data.
3. The SG gravimeter, T49, is currently at Hsinchu, but it can be deployed in a new location (other than Hsinchu) that has a different geodynamic feature.
With two SGs at two locations, many research opportunities can be explored. For example, a proposed new site for T49 is Mt. Yangming (see Fig. 4-7, YMSG), where possible volcano eruptions can occur and hydrological changes will induce large mass and gravity changes. Records from two SG can be used to study gravity changes in sea level ocean circulation associated with the Kuroshio Current.
4. Use of gravimetry to study groundwater in central Taiwan. Since 90 % of all unfrozen fresh water is hidden underground, it is difficult to determine its volume. The volume can be estimated with a network of AG sites around central Taiwan.
The list of publications related to this project is as below:
Referee journal papers
1. Hwang, C., R. Kao, C. C. Cheng, J. F. Huang, C. W. Lee, and T. Sato, 2009.
Results from parallel observations of superconducting and absolute gravimeters and GPS at the Hsinchu station of Global Geodynamics Project, Taiwan. J. Geophys. Res., 114, B07406, doi: 10.1029/2008JB006195.
(IF=3.147)
2. Mouyen M., Masson F., Hwang C., Cheng CC., Cattin R., Lee CW. , Le Moigne N., Hinderer J., Malavieille J., Bayer R., Luck B., 2009. Expected temporal Absolute Gravity change across the Taiwanese Orogen, a modeling approach, J. of Geodynamics, 48, 284-291. (IF=1.692)
3. Yeh, TK, C Hwang, JF Huang, BF Chao, and MH Chang, Vertical displacement due to ocean tidal loading around Taiwan based on GPS observations, Atmospheric and Oceanic Sciences, in press, 2011. (IF=0.643) 4. Hwang, C, and JF Huang, SGOTL: model and computer program for
high-resolution, height-dependent gravity effect of ocean tide loading, Terrestrial, Atmospheric and Oceanic Sciences, Vol. 22, No. 4, pp. 373-382, 2011.
5. Hwang, C and JF Huang, Numerical model of displacements due to ocean tide loading: case study at GPS stations in Taiwan and western Pacific, submitted to Journal of Chinese Institute of Engineers, 2011.
6. M. Mouyen, F. Masson, C. Hwang, C.-C. Cheng, N. Le Moigne, J. Lee, R.
Kao, W.-C. Hsieh, B. Luck, J.-D. Bernard. Time-lapse absolute and relative gravimetry in Taiwan : identification of hydrology, tectonics and erosion effects, in preparation for Geophysical Journal International.
7. Mouyen M., Masson F., Mouthereau F., Simoes M., Hwang C. and Cheng
preparation for Tectonophysics.
Conference papers
1. Hsieh, W. C., C. W. Lee, R. Kao, M. H. Peng, C. Hwang, M. Yang, F.
Masson, and N. Le Moigne. Absolute gravity measurements in Taiwan, Asia Oceania Geosciences Society, Korea, June 16-20, 2008.
2. Masson F., Mouyen M., Hwang C., Cheng C., Lee C., Le Moigne N., Hinderer J., Cattin R., Luck B., Bayer R., Malavieille J. Study of the Taiwanese orogen from absolute gravity data , AGU Meeting, San Francisco, 2008
3. Hwang, C, R Kao, CC Cheng, JF Huang, CW Lee , and T Sato, Results from two years of superconducting observations at the Hsinchu (HS) station, Taiwan, European Geophysical Union, General Assembly, Vienna, Austria, April 19-24, 2009.
4. Kao, R., C. Hwang, C. W. Lee, M. H. Peng, W. C. Hsieh, 2009.
Atmospheric pressure effect of SG measurements, The 28th Conference on Surveying and Geomatics: 2009, Taoyuan, Taiwan.
5. Masson F., Mouyen M., Hwang C., Cheng C.C., Le Moigne N., Lee C.W., Kao R., Hsieh N. (2009) - Utilisation des variations temporelles de
pesanteur pour l'étude de l'orogène taiwanaise : le projet AGTO, Colloque G2, Strasbourg, 2009.
6. Mouyen M., Masson F., Hwang C., Cheng C., Le Moigne N., Lee C., Kao R., Hsieh N., Four Years of Absolute Gravity in the Taiwan Orogen (AGTO), AGU Meeting, San Francisco, 2009.
7. Cheng, C., R. Kao, N. Hsieh, and C. Hwang, Monitoring the gravity changes of seismic deformation by the absolute gravimetric network, 2nd Asia Workshop on Superconducting Gravimetry, Taipei, 2010.
8. Hsieh,W., B. Chao, C. Lee, C. Hwang, and M. Yang, Monitoring gravity change over Mt. Yangming for detection of volcanic activity, Western Pacific Geophysics Meeting 2010, Taipei, 2010.
9. Kao. R., C. Hwang, C. W. Lee, Atmosphere Loading effects of SG48 in Hsinchu (HS), 2nd Asia Workshop on Superconducting Gravimetry, Taipei, 2010.
10. Huang, J. and C. Hwang, Modeling and observing shallow water tides at the Hsinchu (HS) station of GGP, Taiwan, Western Pacific Geophysics Meeting 2010, Taipei, 2010.
11. Cheng, C., T. Lien, and C. Hwang, Coseismic deformation monitoring by absolute gravimetry –case study of Jiashan earthquake Mw=6.4, Geodynamics and Environment in East Asia International Conference & 6th Taiwan-France Earth Science Symposium (GEEA 2010), Aix-en-Provence, France, 2010.
12. Hwang, C., C. Cheng, J. Huang and R. Kao, Superconducting and absolute gravity observations for geodynamic applications, APSG 2010, Shanghai, China, 2010.
13. Kao, R., C. Hwang, C. W. Lee, M. H. Peng, W. C. Hsieh. Taiwanese Orogeny From Absolute Gravimetry: Comparison of Observation and Model, The 29th Conference on Surveying and Geomatics : SG2010, Taipei, Taiwan, September 2-3, 2010.
14. Mouyen M., Masson F., Hwang C., Cheng C., Le Moigne N., Lee C., Kao R., Hsieh N. Four Years of Absolute Gravity in the Taiwan Orogen (AGTO), EGU Meeting, Vienna, Austria, 2010.
15. Mouyen M., Masson F., Mouthereau F., Hwang C., Cheng C. Modelling
Meeting, Vienna, Austria, 2010.
16. Mouyen M., Masson F., Hwang C., Cheng C., Le Moigne N., Lee C., Kao R., Hsieh N. Time-lapse absolute gravity measurements in the Taiwan Orogen, American Geophysical Union (AGU) - Western Pacific Geophysics Meeting, Hsinchu, Taiwan, 2010.
17. Mouyen M., Masson F., Hwang C., Cheng C., Le Moigne N., Lee C., Kao R., Hsieh N. Absolute gravity monitoring of the Taiwan Orogen, GEEA meeting, Aix en Provence, France, 2010.
18. Mouyen M., Masson F., Mouthereau F., Simoes M., Hwang C., Cheng C.
Gravity change in Taiwan from kinematic orogeny models, Geodynamics and Environment in East Asia (GEEA) meeting, Aix en Provence, France, 2010.
19. Mouyen M., Masson F., Hwang C., Cheng C., Le Moigne N., Lee C., Kao R., Hsieh N. Absolute gravity measurements in the Taiwan orogen (invited), International Geoscience Programme (IGCP 565) Workshop 3 : Separating Hydrological and Tectonic Signals in Geodetic Observations Reno, NV, USA, 2010.
20. Mouyen M., Masson F., Hwang C., Cheng C., Le Moigne N., Lee C., Kao R., Hsieh N. Observation of debris flow and landslides mass transfers using time lapse gravimetry. Gravitational hazards meeting (JAG 2011), Strasbourg, France, 2011.
21. Mouyen M., Masson F., Hwang C., Cheng C., Le Moigne N., Lee C., Kao R., Hsieh N, Luck, B. Contribution of gravimetry to the Taiwanese orogeny study, AGU Meeting, San Francisco, CA, USA, 2011.
22. Kao, R., C. Hwang, C. W. Lee, F. Masson, R. Bayer, J. F. Huang, W. C.
Hsieh, N. Le Moigne, M. Mouyen, C. C. Cheng, M. H. Peng. Taiwanese
Orogeny From Absolute Gravimetry and GPS: Comparison and model.
IUGG 2011 General Assembly, Melbourne, Australia, June 28- July 7, 2011.
References
Boy, J. P., M. Llubes, R. Ray, J. Hinderer, N. Florsch, S. Rosat, F. Lyard, and T.
Letellier, 2004. Non-linear oceanic tides observed by superconducting gravimeters in Europe, J. Geodyn., 38, 391-405.
Dehant, V., P. Defraigne, and J. M. Wahr, 1999. Tides for a convective Earth. J.
Geophys. Res., 104, 1035-1058.
Farrell, W. E., 1972. Deformation of the earth by surface loads, Rev. Geophys. Space Phys., 10, 761-797.
Hickman, J.B., Wiltschko, D.V., Hung, J.-H., Fang, P., Bock, Y., 2002. Structure and evolution of the active fold-and-thrust belt of southwestern Taiwan from Global Ho, C.S., 1986. A synthesis of the geologic evolution of Taiwan. Tectonophysics
125,1–16.
Hwang, C., R. Kao, C. C. Cheng, J. F. Huang, C. W. Lee, and T. Sato, 2009. Results from parallel observations of superconducting and absolute gravimeters and GPS at the Hsinchu station of Global Geodynamics Project, Taiwan. J. Geophys. Res., 114, B07406, doi: 10.1029/2008JB006195.
Jan, S., C. S. Chern, J. Wang, and S. Y. Chao, 2004. The anomalous amplification of M2 tide in the Taiwan Strait, Geophys. Res. Lett., 31, L07308, doi:10.1029/2003/GL019373.
Mouyen M., Masson F., Hwang C., Cheng CC., Cattin R., Lee CW. , Le Moigne N., Hinderer J., Malavieille J., Bayer R., Luck B., 2009. Expected temporal Absolute Gravity change across the Taiwanese Orogen, a modeling approach, J. of Geodynamics, 48, 284-291.
Positioning System analysis. In: Byrne, T.B., Liu, C.-S. (Eds.), Geology and eophysics of An Arc-Continent Collision, Taiwan. Geological Society of America Special Paper, Boulder, CO # 358, pp. 75–92.
Torge, W., 1989. Gravimetry. De Gruyter, Berlin.
Warburton, R. J., and Goodkind, J. M., 1977. The influence of barometric pressure variations on gravity. Geophys. J. R. astr. Soc., 48, 281-292.
國科會補助專題研究計畫項下出席國際學術會議心得報告
日期： 100 年 7 月 10 日
一、參加會議經過 二、與會心得
三、考察參觀活動(無是項活動者略) 四、建議
五、攜回資料名稱及內容 六、其他
計畫編號 NSC 99 － 2923 － M － 009 － 002 －
計畫名稱 以絕對重力研究台灣造山運動:觀測與模式比較
出國人員
姓名 高瑞其 服務機構
及職稱 國立交通大學 / 博士生
會議時間 100 年 7 月 1 日至
100 年 7 月 7 日 會議地點 澳洲 墨爾本
會議名稱
(中文)
(英文) International Union of Geodesy and Geophysics
發表論文 題目
(中文)
(英文)Taiwanese Orogeny From Absolute Gravimetry and GPS:
Comparison of observation and model
一、參加會議經過
由於 IUGG 是由國際冰凍圈科學學會(International Association of Cryospheric Sciences, IACS)、國際大地測量學會(International Association of Geodesy, IAG)、國際地磁及高空物 理學會(International Association of Geomagnetism and Aeronomy, IAGA)、國際水文地質學 會(International Association of Hydrological Sciences, IAHS)、國際氣象及大氣物理學會 (International Association of Meteorology and Atmospheric Sciences, IAMAS)、國際海洋 物理科學會(International Association for the Physical Sciences of the Ocean, IAPSO)、
國際地震及地球內部物理學會(International Association of Seismology and Physics of the Earth's Interior, IASPEI)及國際火山及地球內部化學會 International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI)等八個國際組織所共同舉辦，
參加了這四年一次的 IUGG，除了聽了很多場次的相關重力研究，增長了見識外，最重要的是認識 很多位重量級的重力專家，像是 BIPM 的 Dr. Zhiheng Jiang，全球超導重力組織的執行長 Prof.
David Corssley 及全球重力資料中心負責人 Prof. Jean-Pierre Barriot 等，其中 Prof.
Jean-Pierre Barriot 會在 8 月到台灣參加 AOGS，他還會抽空到新竹的國家重力基準站來互相交 流，及討論未來幾年大溪地空載重力之合作方案。 (Satellite Laser Ranging, SLR)，超長基線干涉測量技術(Very Long Baseline Interferometry, VLBI)，全球導航衛星系統(Global Navigation Satellite System, GNSS)，無線電定位系統(Doppler Orbitography and Radiopositioning Integrated by Satellite, DORIS)及基礎測量設備所組成之系 統，由 Golbal Geodetic Observing System (GGOS)所主導來整合全球定位資訊之組織，目前國內太 空中心已經預計在福衛七號上加裝 SLR 的反射鏡，交通大學黃金維教授邀請哈佛-史密森天體物理中心 (Harvard-Smithsonian Center for Astrophysics) 的副主席 Michael Pearlman，在 AOGS 開會期間 (8/8-8/12,2011)至合歡山挑選 SLR 合適的地點，本人也將一同前往及討論未來是否有合作之機會。
此次會議所達成的共識為：
1. 資料中心由 Information System and Data Center (ISDC)及 International Center of Earth Tides (ICET)共同保存。
2. 各會員國提供絕對重力資料至 ISDC 保存，印度則因為國內因素將等解禁後才上傳。
3. GGP 從 2007 年完成 IAG 第二階段的重力場任務後，目前所執行 IAG 第三階段-地球自轉及 地體動力計畫，並持續提供成果及數據。
4. 超導重力未來扮演全球重力基準之角色，最重要是數據即時性及正確性，有效提昇與會國 的處理能力是目前最重要的課題。
五、攜回資料名稱及內容
論文摘要集光碟片 GGP、GGOS，IAG, NOAA 等研究成果書面及光碟片數份、其他論文宣讀及海 報投影片十餘份等。
六、其他
略
IUGG 接受函
From: IUGG Presenters [mailto:[email protected]]
Sent: Monday, March 28, 2011 11:40 PM To: 'Cheinway Hwang'
Subject: IUGG 2011 - Oral Acceptance Letter Ref: 4475
Mr Ricky Kao
National Chiao Tung University
2f., No.539-3, Sec. 2, Jingguo Rd., North Dist.
Hsinchu TAIWAN 300 TAIWAN
Dear Mr Ricky Kao,
IUGG 2011 General Assembly
Earth on the Edge: Science for a Sustainable Planet 28 June - 7 July 2011
Melbourne, Australia
ACCEPTANCE FOR PRESENTATION
On behalf of the Scientific Program Committee we have great pleasure in confirming your abstract(s) (details below) has been accepted for an Oral Presentation at the IUGG 2011 General Assembly, in Melbourne from 28 June - 7 July 2011.
The details of your presentation are as follows:
Abstract Title: The orogeny of Taiwan from Absolute Gravimetry and GPS:
observation and model
Abstract Number: 5595.00
Symposia Sub-theme:: JG04
Presentation Type: Poster Presentation
Session Details: Will be confirmed to you in due
Please advise your fellow co-authors the above abstract has been accepted.
Registration Information
All presenters are expected to register by 11 April 2011, the Early Bird Registration deadline, to guarantee their inclusion in the program and to take advantage of the early-bird registration rate. Payment of the registration fee should also be made at this time. Payment of the registration fee after this date will attract the higher standard registration fee.
If you have not already registered, please ensure your registration is linked with your abstract account, using your existing personal record - click here
Note this registration form is only for use by the submitting/presenting author and offers registration rates minus the A$30 author deposit. Please ensure you register by 11 April 2011.
Grant Applications
Notification relating to Grant Applications (Registrations, Travel Expenses, Food and Lodging) will be communicated separately by the Local Organising Committee. Those awaiting acceptance for registration, will receive further details on how to complete their waived registration.
Presenting and Co-Author Information
If you are not the presenting author for the above abstract, please notify us by email quoting your abstract number and the reference codes as per above.
The Speaker Zone has been re-opened to allow you to check and edit the author listing for the above abstract submission. It is the responsibility of the submitting/presenting author for the accuracy of the information provided on co-authors and affiliations. The Scientific Program Committee, Local Organising Committee and the Assembly Managers do not take responsibility for this when published.
Please click here and enter your access key (EWZX7HN8K) in the field provided.
Please note you are unable to edit any other areas of your abstract as it has already been accepted. If you need to amend any other areas please email us.
Important Information
The Committee is in the process of finalising the program sessions and a preliminary program (outlining the dates for symposia sessions only) will be available 8 April 2011.
The details of your presentation including the date you will be presenting, length of
presentation, time of your presentation, along with briefing notes and details on how to submit your PowerPoint presentations will be provided on 26 April 2011.
Should the release of the program affect your registration or participation, please contact the General Assembly Managers ([email protected]).
Attention International Presenters
Please use this letter to apply for grants or when applying for an Australian Visa for travel.
It is highly recommended that you apply for your Australian Travel VISA as soon as possible.
An online ‘Letter of Invitation’ can be completed with your details here. Please visit the IUGG 2011 website for further visa information.
Please be aware it may take up to 6-8 weeks for visas to be processed.
If you have any questions regarding your acceptance please do not hesitate to contact the IUGG 2011 General Assembly Program Managers.
The support you have shown for IUGG 2011 is greatly appreciated and we look forward to your involvement in the Scientific Program.
Kind regards
IUGG 2011 General Assembly Managers ________________________________
Phone: +61 3 9417 0888
Email [email protected]
Website www.iugg2011.com
所發表之論文
國科會補助計畫衍生研發成果推廣資料表
日期:2011/10/19
國科會補助計畫
計畫名稱: 以絕對重力研究台灣造山運動:觀測與模式比較 計畫主持人: 黃金維
計畫編號: 99-2923-M-009-002- 學門領域: 測地學和重磁學
無研發成果推廣資料
99 年度專題研究計畫研究成果彙整表
封 面 故 事 ...等）
屆 測 量 及 空 間 資
’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’
以 絕 對 重 力 研 究 台 灣 造 山
’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’’
法方主寫 3 篇(1 篇已接收,2 篇審核中)
篇研討會論文
法屬大溪地大學(Universite de la Polynesie Francaise)將提供先進超導重力數據軟體
名稱或內容性質簡述
國科會補助專題研究計畫成果報告自評表
請就研究內容與原計畫相符程度、達成預期目標情況、研究成果之學術或應用價 值（簡要敘述成果所代表之意義、價值、影響或進一步發展之可能性）、是否適 合在學術期刊發表或申請專利、主要發現或其他有關價值等，作一綜合評估。
1. 請就研究內容與原計畫相符程度、達成預期目標情況作一綜合評估
■達成目標
□未達成目標（請說明，以 100 字為限）
□實驗失敗
□因故實驗中斷
□其他原因 說明：
2. 研究成果在學術期刊發表或申請專利等情形：
論文：■已發表 □未發表之文稿 □撰寫中 □無 專利：□已獲得 □申請中 ■無
技轉：□已技轉 □洽談中 ■無 其他：（以 100 字為限）
3. 請依學術成就、技術創新、社會影響等方面，評估研究成果之學術或應用價 值（簡要敘述成果所代表之意義、價值、影響或進一步發展之可能性）（以 500 字為限）
本計畫為台法合作計畫,在重力測量方面能夠藉由實際觀測的合作模式,了解國際最先進 的儀器操作及分析處理方式,參與的人員對於全世界中屬於造山運動劇烈的台灣,本計畫 的成果除了可提供分析板塊擠壓造成台灣獨特地理景觀的成因外,對於人才的培養及技術 的提昇有著極重要的幫助。本計畫從 2006 年開始至目前已經發表及正在審核中的國際期 刊已達 7 篇,參加國際學術研討會之文章也有 22 篇,未來在經費許可的情形下,將持續觀測 及研究,另外本計畫所涉及的領域包含地球科學、地質、大氣、水文、海洋及測量,台灣目 前包含台灣、中央、交通、成功、台北及中正等大學,已經有興趣的教授及學生,共同組成 研究團隊分享彼此的研究成果,未來還進一步對於大屯火山及雲林地層下陷等問題貢獻心 力。