台灣地區動態座標框架立之先期研究－台灣現今之地殼變形模式

Preliminary study for establishment of dynamic datum in Taiwan-Modern crustal deformation of Taiwan

景國恩(Kuo-En Ching)；許書琴(Shu-Chin Hsu)；孔冠傑(Kuan-Chieh Kung)；陳芊如(Chien-Ju Chen)；趙荃敏(Chuan-Min Chao)

GPS 水平速度場 ； 三維塊體模型 ； 水平速度場模型 ； 3D block model ； GPS horizontal velocity ； Horizontal velocity model

國土測繪與空間資訊

1卷2期（2013 / 07 / 01）

17 - 35

繁體中文

為進行台灣地區動態大地基準建立之先期研究工作，本研究使用1995-2005年531 個GPS 水平速度場與2000-2008 年1843 個精密水準測量成果來建立並分析台灣地區現今之地表速度場模型。分析相對於澎湖白沙測站S01R 之速度場顯示，水平速度場由東部海岸地區約70 mm/yr 向台灣西北海岸地區逐漸遞減至近乎無位移，並在台灣北部呈順時針旋轉型態，於台灣南部則略呈逆時針旋轉之型態。此外，台灣地區之垂直速度場顯示，約10-20 mm/yr 之抬升速率，主要發生在中央山脈與海岸山脈南部地區，最大抬升速率約為23 mm/yr，其他地區如平原或盆地則主要顯示為沉陷。在台灣西南部平原地區因為人為抽水的關係導致其沉陷速率普遍大於20 mm/yr，最大沉陷速率約為113 mm/yr。接著，本研究將台灣區分為27 個構造塊體並考慮21 條活動斷層之滑移虧損速率，藉由三維塊體模型反演台灣水平速度場來估算各塊體與活動斷層之歐拉極位置、塊體運動速率、斷層長期滑移速率與斷層鎖定率，並最終建立台灣水平速度場模型。由於動態框架之建立仍需考慮更複雜之地殼變形行為，因此在後續之研究工作中，本研究團隊將會持續針對垂直速度場模型、主要地震同震位移模型與其震後變形模型之連結進行 ，並會與現行之TWD97@2010 座標框架進行銜接，期能在不久的將來提出適合台灣之動態框架。

In order to establish the dynamic datum of Taiwan in the future, in this study we adopted 531 GPS horizontal velocities from 1995 to 2005 and 1843 precise leveling measurements from 2000 to 2008 to establish and analyze the present-day surface velocity model in Taiwan. The horizontal velocity field, relative to the station S01R, shows that the velocity of ~70 mm/yr in eastern coast gradually decreases to nearly no deformation in northwestern coast in Taiwan. In northern Taiwan, velocity field represents a clockwise rotation pattern, while a counterclockwise rotation pattern is revealed in southern Taiwan. Based on the vertical velocity field in Taiwan relative to the S01R, the uplift rate of 10-20 mm/yr is mainly observed in the Central Range and the southern Coastal Range with the maximum rate of ~23 mm/yr. On the contrary, the land subsidence is presented in other regions, such as the plains and basins, with the maximum subsidence rate of ~113 mm/yr. Next, we divided Taiwan into 27 tectonic blocks and 21 faults used to estimate the slip deficit. We inverted the Taiwan horizontal velocities for the locations of Euler poles, block motions, long-term fault slip rates, and fault coupling coefficients using the 3D block model. Finally, the horizontal velocity model in Taiwan is proposed based on the block modeling results. In order for establishing the dynamic datum of Taiwan, more complicated crustal deformation behaviors caused by earthquakes are needed be considered. Therefore we will continue working for the establishments of vertical velocity model, coseismic displacement models, and their following postseismic deformation models to propose a suitable Taiwan dynamic datum in the future. We will also try to apply the proposed dynamic model to the TWD97@2010 coordinate frame.

1. Angelier, J.,Chu, H. C.,Lee, J. C.,Hu, J. C.(2000).Active faulting and earthquake hazard: the case study of the Chihshang fault, Taiwan.Journal of Geophysical Research,29,151-185.
2. Blick, G.,Crook, C.,Grant, D.,Beavan, J.(2005).Implementation of a semi-dynamic datum for New Zealand.International Association of Geodesy Symposia,128,38-43.
3. Bos, A. G.,Spakman, W.,Nyst, M. C. J.(2003).Surface deformation and tectonic setting of Taiwan inferred from a GPS velocity field.Journal of Geophysical Research,108
4. Carena, S.,Suppe, J.,Kao, H.(2002).Active detachment of Taiwan illuminated by small earthquakes and its control of first-order topography.Geology,30,935-938.
5. Chang, C. P.,Chang, T. Y.,Angelier, J.,Kao, H.,Lee, J. C.,Yu, S. B.(2003).Strain and stress field in Taiwan oblique convergent system: Constraints from GPS observations and tectonic data.Earth and Planetary Science Letters,214,115-127.
6. Chen, H. Y.,Kuo, L. C.,Yu, S. B.(2004).Coseismic movement and seismic ground motion associated with the 31 March 2002 Hualien "331" earthquake.Terrestrial, Atmospheric and Oceanic Sciences,15,683-695.
7. Chen, H. Y.,Yu, S. B.,Kuo, L. C.,Liu, C. C.(2006).Coseismic and postseismic displacements of the 10 December 2003 (MW 6.5) Chengkung, eastern Taiwan, earthquake.Earth Planets Space,58,5-21.
8. Chen, K. H.,Yang, M.,Huang, Y. T.,Ching, K. E.,Rau, R. J.(2011).Vertical displacement rate field of Taiwan from geodetic levelling data 2000-2008.Survey Review,43,296-302.
9. Cheng, L. W.,Lee, J. C.,Hu, J. C.,Chen, H. Y.(2009).Coseismic and postseismic slip distribution of the 2003 Mw = 6.5 Chengkungearthquake in eastern Taiwan: Elastic modeling from inversion of GPS data.Tectonophysics,466,335-343.
10. Ching, K. E.,Hsieh, M. L.,Johnson, K.M.,Chen, K.H.,Rau, R.J.,Yang, M.(2011).Modern vertical deformation in Taiwan: precise leveling measurements and continuous GPS observations, 2000-2008.Journal of Geophysical Research,116,B08406.
11. Ching, K. E.,Johnson, K. M.,Rau, R. J.,Chuang, R. Y.,Kuo, L. C.,Leu, P. L.(2011).Inferred fault geometry and slip distribution of the 2010 Jiashian, Taiwan, earthquake is consistent with a thick-skinned deformation model.Earth and Planetary Science Letters,301,78-86.
12. Ching, K. E.,Rau, R. J.,Johnson, K. M.,Hu, J. C.,Lee, J. C.(2011).Present-day kinematics of active mountain building in Taiwan from GPS observations during 1995-2005.Journal of Geophysical Research
13. Ching, K. E.,Rau, R. J.,Lee, J. C.,Hu, J. C.(2007).Contemporary deformation of tectonic escape in SW Taiwan from GPS observations, 1995-2005.Earth and Planetary Science Letters,262,601-619.
14. Ching, K. E.,Rau, R. J.,Zeng, Y.(2007).Coseismic source model of the 2003 Mw 6.8 Chengkung earthquake, Taiwan, determined from GPS measurements.Journal of Geophysical Research,112,B06422.
15. Clift, P. D.,Schouten, H.,Draut, A. E.(2003).A general model of arc-continent collision and subduction polarity reversal from Taiwan and the Irish Caledonides.Intra-Oceanic Subduction Systems: Tectonic and Magmatic Processes,London:
16. Dahlen, F. A.,Suppe, J.(1988).Mechanics, growth, and erosion of mountain belts.Geological Society of America, Special Papers,161-178.
17. Davis, D.,Suppe, J.,Dahlen, F. A.(1983).Mechanics of fold-and-thrust belts and accretionary wedges.Journal of Geophysical Research,88,1153-1172.
18. Ho, C. S.(1986).A synthesis of the geologic evolution of Taiwan.Tectonophysics,125,1-16.
19. Hsu, V.(1990).Seismicity and tectonics of a continent-island arc collision zone at the Island of Taiwan.Journal of Geophysical Research,95,4725-4734.
20. Hsu, Y. J.,Avouac, J. P.,Yu, S. B.,Chang, C. H.,Wu, Y. M.,Woessner, J.(2009).Spatio-temporal Slip, and Stress Level on the Faults within the Western Foothills of Taiwan: Implications for Fault Frictional Properties.Pure and Applied Geophysics,166
21. Hsu, Y. J.,Bechor, N.,Segall, P.,Yu, S. B.,Kuo, L. C.,Ma, K. F.(2002).Rapid afterslip following the 1999 Chi-Chi, Taiwan, earthquake.Geophysical Research Letters,29
22. Hsu, Y. J.,Segall, P.,Yu, S. B.,Kuo, L. C.,Williams, C. A.(2007).Temporal and spatial variations of postseismic deformation following the 1999 Chi-Chi, Taiwan earthquake.Geophysical Journal International,169,367-379.
23. Hsu, Y. J.,Yu, S. B.,Chen, H. Y.(2009).Coseismic and postseismic deformation associated with the 2003 Chengkung, Taiwan earthquake.Geophysical Journal International,176,420-430.
24. Hsu, Y. J.,Yu, S. B.,Simons, M.,Kuo, L. C.,Chen, H. Y.(2009).Interseismic crustal deformation in the Taiwan plate boundary zone revealed by GPS observations, seismicity, and earthquake focal mechanisms.Tectonophysics,479,4-18.
25. Hu, J. C.,Hou, C. S.,Shen, L. C.,Chan, Y. C.,Chen, R. F.,Huang, C.,Rau, R. J.,Chen, K. H.,Lin, C. W.,Huang, M. H.,Nien, P. F.(2007).Fault activity and lateral extrusion inferred from velocity field revealed by GPS measurements in the Pingtung area of southwestern Taiwan.Journal of Asian Earth Sciences,31,287-302.
26. Huang, C. Y.,Wu, W. Y.,Chang, C. P.,Tsao, S.,Yuan, P. B.,Lin, C. W.,Xia, K. Y.(1997).Tectonic evolution of accretionary prism in the arc-continent collision terrane of Taiwan.Tectonophysics,281,31-51.
27. Huang, C. Y.,Yuan, P. B.,Lin, C. W.,Wang, T. K.,Chang, C. P.(2000).Geodynamic processes of Taiwan arc-continent collision and comparison with analogs in Timor, Papua New Guinea, Urals and Corsica.Tectonophysics,325,1-21.
28. Huang, S. T.,Yang, K. M.,Hung, J. H.,Wu, J. C.,Ting, H. H.,Mei, W. W.,Hsu, S. H.,Lee, M.(2004).Deformation front development at the northeast margin of the Tainan basin, Tainan-Kaohsiung area, Taiwan.Marine Geophysical Research,25,139-156.
29. Lacombe, O.,Mouthereau, F.,Angelier, J.,Chu, H. T.,Lee, J. C.(2003).Frontal belt curvature and oblique ramp development at an obliquely collided irregular margin: Geometry and kinematics of the NW Taiwan fold-thrust belt.Tectonics,22
30. Lacombe, O.,Mouthereau, F.,Angelier, J.,Deffontaines, B.(2001).Structural, geodetic and seismological evidence for tectonic escape in SW Taiwan.Tectonophysics,333,323-345.
31. Lallemand, S. E.,Tsien, H.(1997).An introduction to active collision in Taiwan.Tectonophysics,274,1-4.
32. Lee, J. C.,Angelier, J.,Chu, H. T.,Hu, J. C.,Jeng, F. S.(2001).Continuous monitoring of an active fault in a plate suture zone a creepmeter study of the Chihshang Fault, eastern Taiwan.Tectonophysics,333,219-240.
33. Lee, J. C.,Angelier, J.,Chu, H. T.,Hu, J. C.,Jeng, F. S.,Rau, R. J.(2003).Active fault creep variations at Chihshang, Taiwan, revealed by creep meter monitoring, 1998-2001.Journal of Geophysical Research,108
34. Lin, A. T.,Watts, A. B.(2002).Origin of the West Taiwan Basin by orogenic loading and flexure of a rifted continental margin.Journal of Geophysical Research,107
35. Lin, A. T.,Watts, A. B.,Hesselbo, S. P.(2003).Cenozoic stratigraphy and subsidence history of the South China Seamargin in the Taiwan region.Basin Research,15,453-478.
36. Lu C. Y.,Malavieille, J.(1994).Oblique convergence, indentation and rotation tectonic in the Taiwan mountain belt: insights from experimental modeling.Earth and Planetary Science Letters,121,477-494.
37. Lu, C. Y.,Chang, K. J.,Jeng, F. S.,Jian, W. T.(1998).Impact of basement high on the structure and kinematics of the western Taiwan thrust wedge: insights from sandbox models.Terrestrial, Atmospheric and Oceanic Sciences,9,533-550.
38. McCaffrey, R.(2005).Block kinematics of the Pacific-North America plate boundary in the southwestern United States from inversion of GPS, seismological, and geologic data.Journal of Geophysical Research,110,B07401.
39. Nur, A.,Mavko, G.(1974).Post-seismic viscoelastic rebound.Science,183,204-206.
40. Okada, Y.(1985).Surface deformation to shear and tensile faults in a half space.Bulletin of the Seismological Society of America,75,1135-1154.
41. Ozawa, S.,Nishimura, T.,Suito, H.,Kobayashi, T.,Tobita, M.,Imakiire, T.(2011).Coseismic and postseismic slip of the 2011 magnitude-9 Tohoku-Oki earthquake.Nature,475,373-376.
42. Pearson, C.,McCaffrey, R.,Elliott, J.,Snay, R.(2010).HTDP 3.0: Software for Coping with the Coordinate Changes Associated with Crustal Motion.Journal of Surveying Engineering,136,80-90.
43. Pearson, C.,Snay, R.(2012).Introducing HTDP 3.1 to transform coordinates across time and spatial reference frames.GPS Solutions,17
44. Peltzer, G.,Rosen, P.,Rogez, F.,Hudnut, K.(1996).Postseismic rebound in fault step-overs caused by pore fluid flow.Science,273,1202-1206.
45. Rau, R. J.,Ching, K. E.,Hu, J. C.,Lee, J. C.(2008).Crustal deformation and block kinematics in transition from collision to subduction: GPS measurements in northern Taiwan, 1995-2005.Journal of Geophysical Research,113,B09404.
46. Rau, R. J.,Wu, F. T.(1995).Tomographic imaging of lithospheric structures under Taiwan.Earth and Planetary Science Letters,133,517-532.
47. Roeloffs, E.(1996).Poroelastic techniques in the study of earthquake-related hydrological phenomena.Advances in Geophysics,37,135-195.
48. Sagiya, T.,Miyazaki, S.,Tada, T.(2000).Continuous GPS array and present-day crustal deformation of Japan.Pure and Applied Geophysics,157,2303-2322.
49. Shyu, J. B. H.,Sieh, K.,Chen, Y. G.,Liu, C. S.(2005).Neotectonic architecture of Taiwan and its implications for future large earthquakes.Journal of Geophysical Research,110,B08402.
50. Snay, R. A.(2012).Evolution of NAD 83 in the United States: Journey from 2D toward 4D.Journal of Surveying Engineering,138,161-171.
51. Stein, S.(ed.),Freymueller, J.(ed.)(2002).Plate Boundary Zones.Washington:AGU.
52. Suppe, J.(1984).Kinematics of arc-continent collision, flipping of subduction, and back-arc spreading near Taiwan.Mem. Geological Society of China,6,21-33.
53. Suppe, J.(1981).Mechanics of mountain building and metamorphism in Taiwan.Mem, Geological Society of China,4,67-89.
54. Suppe, J.(1980).Imbricated structure of western foothills belt, south-central Taiwan.Petroleum Geology of Taiwan,17,1-16.
55. Tanaka, Y.,Saita, H.,Sugawara, J.,Iwata, K.,Toyoda, T.,Hirai, H.,Kawaguchi, T.,Matsuzaka, S.(2007).Efficient maintenance of the Japanese geodetic datum 2000 using crustal deformation models - PatchJGD & semi-dynamic datum.Bulletin of the Geographical Survey Institute,54,49-59.
56. Teng, L. S.(1996).Extensional collapse of the northern Taiwan mountain belt.Geology,24,949-952.
57. Teng, L. S.(1990).Geotectonic evolution of late Cenozoic arc continent collision in Taiwan.Tectonophysics,183,57-76.
58. Thatcher, W.,Rundle, J. B.(1984).A viscoelastic coupling model for the cyclic deformation due to periodically repeated earthquakes at subduction zones.Journal of Geophysical Research,89,7631-7640.
59. Tse, S. T.,Rice, J. R.(1986).Crustal earthquake instability in relation to the depth variation of frictional slip properties.Journal of Geophysical Research,91,9452-9472.
60. Viallon, C.,Huchon, P.,Barrier, E.(1986).Opening of the Okinawa basin and collision in Taiwan: A retreating trench model with lateral anchoring.Earth and Planetary Science Letters,80,145-155.
61. Ward, S. N.(1994).A multidisciplinary approach to seismic hazard in southern California.Bulletin of the Seismological Society of America,84,1293-1309.
62. Wu, Y. M.,Chen, Y. G.,Shin, T. C.,Kuochen, H.,Hou, C. S.,Hu, J. C.,Chang, C. H.,Wu, C. F.,Teng, T. L.(2006).Coseismic versus interseismic ground deformations, fault rupture inversion and segmentation revealed by 2003 Mw 6.8 Chengkung earthquake in eastern Taiwan.Geophysical Research Letters,33,L02312.
63. Yang, K. M.,Huang, S. T.,Wu, J. C.,Ting, H. H.,Mei, W. W.(2006).Review and new insights on foreland tectonics in western Taiwan.International Geology Review,48,910-941.
64. Yang, K. M.,Ting, H. H.,Yuan, J.(1991).Structural styles and tectonic modes of Neogene extensional tectonics in southwestern Taiwan: implications for hydrocarbon exploration.Petroleum Geology of Taiwan,26,1-31.
65. Yang, M.,Chen, K. H.,Shiao, S. W.(2003).A new height reference network in Taiwan.Survey Review,37,260-268.
66. Yu, S. B.,Chen, H. Y.(1994).Global positioning system measurements of crustal deformation in the Taiwan arc-continent collision zone.Terrestrial, Atmospheric and Oceanic Sciences,5,477-498.
67. Yu, S. B.,Chen, H. Y.,Kuo, L. C.(1997).Velocity field of GPS Stations in the Taiwan area.Tectonophysics,274,41-59.
68. Yu, S. B.,Hsu, Y. J.,Kuo, L. C.,Chen, H. Y.,Liu, C. C.(2003).GPS measurement of postseismic deformation following the 1999 Chi-Chi, Taiwan, earthquake.Journal of Geophysical Research,108
69. Yu, S. B.,Kuo, L. C.(2001).Present-day crustal motion along the Longitudinal Valley Fault, eastern Taiwan.Tectonophysics,333,199-217.
70. Yu, S. B.,Kuo, L. C.,Hsu, Y. J.,Su, H. H.,Liu, C. C.,Hou, C. S.,Lee, J. F.,Lai, T. C.,Liu, C. C.,Liu, C. L.,Tseng, T. F.,Tsai, C. S.,Shin, T. C.(2001).Preseismic deformation and coseismic displacements associated with the 1999 Chi-Chi, Taiwan earthquake.Bulletin of the Seismological Society of America,91,995-1012.
71. Yu, S. B.,Kuo, L. C.,Punongbayan, R. S.,ERamos, G.(1999).GPS observation of crustal motion in the Taiwan-Luzon region.Geophysical Research Letters,26,923-926.
72. Zhuang, J.,Chang, C. P.,Ogata, Y.,Chen, Y. I.(2005).A study on the background and clustering seismicity in the Taiwan region by using point process models.Journal of Geophysical Research,110,B05S18.

1. 甯方璽,徐名洪(2022)。利用GNSS連續運行站觀測資料及震間變形模型進行地震區域控制點修正之研究。臺灣土地研究，25(1)，1-21。