Chao, Benjamin Fong  Distinguished Research Fellow and Director

    TEL:+886-2-2783-9910 ext. 103, 517
    FAX:+886-2-2783-9871
    E-mail:bfchao@earth.sinica.edu.tw
    Specialty: Earth/Planetary rotation dynamics and gravitational variations,

                    Global changes in geophysical fluids,

                    Global geophysics and seismology,

                    Digital data analysis and inverse theory.


[Education]
  • Ph.D., 1981: Earth Sciences, Scripps Institution of Oceanography, University of California , San Diego (thesis adviser: Prof. Freeman Gilbert)
  • B.S., 1973: Physics, National Taiwan University
[Experiences]
  • Distinguished Research Fellow and Director, Inst. of Earth Sciences, Academia Sinica, 2010.9 - present
  • Distinguished Research Fellow, Inst. of Earth Sciences, Academia Sinica, 2010.8 - present
  • Professor and Dean, College of Earth Sciences, National Central University, 2006-2010.7
  • Chief, Space Geodesy Laboratory, NASA Goddard Space Flight Center (GSFC), 2005-2006.
  • Visiting Scientist, National Central University, Taiwan, 2005 (June – August).
  • Head, Space Geodesy Branch, NASA/GSFC, 1997-2004.
  • Geophysicist, Geodynamics Branch, NASA/GSFC , 1983-1996.
  • NASA Geophysics Program Manager, On detail NASA Headquarters, 1993-1995.
  • Visiting Scientist, Japan National Astronomical Observatory, Mizusawa , 1993 (April – July).
  • NRC Research Associate, Geodynamics Branch, NASA/GSFC , 1981-1983.
  • Research Assistant, Scripps Institution of Oceanography, University of California, San Diego, 1975-1981.
[Honors]
  • Foundation for the Advancement of Outstanding Scholarship award, 2009 – 2013.
  • TSMC Outstanding Chair Professorship , 2006, 2007, 2008.
  • Adjunct Researcher, Institute of Geodesy and Geophysics, Chinese Academy of Sciences , Wuhan , 2006 - .
  • The Einstein Professorship, Chinese Academy of Sciences, 2005.
  • Honorary Professorship , Graduate University of the Chinese Academy of Sciences, Beijing , 2005.
  • Fellow , International Association of Geodesy, 1995.
  • NASA GSFC Outstanding Performance Awards , 1991, 1992, 1994, 1995, 1996, 1998, 2000, 2003, 2004.
  • Excellence in Refereeing : J. Geophys. Res ., Amer. Geophys. Union , 1990.

[Services]

  • Organizer, Session Chair, Keynote Speaker, at numerous conferences and symposia.

  • Chairman, IUGG/IAG Special Study Group "Global Geodynamic Variations", 1991-1994.

  • Consulting member, IAU Commission 19, “Earth Rotation”, 1997 -.

  • Editorial Board member, J. Geodynamics, 1996 -.

  • International Editorial Board member, Earth, Planets and Space, 1997 -.

  • Associate Editor, Journal of Geophysical Research -- Solid Earth, 1998 - 2006.

  • Direction and Review Committee, Journal of Geophysical Research - Solid Earth, 1998-1999.

  • International Earth Rotation Service (IERS) Directing Board member, 1998 - 2004.

  • Head (founding), IERS Global Geophysical Fluids Center (GGFC), 1998 – 2004.

  • Chair, IERS/GGFC Special Bureau for Mantle, 1998 - 2006.

  • Mission Scientist, NASA GRACE Mission, 2000 - 2002.

  • NASA Solid Earth Science Working Group, 2000 - 2002.

  • Workgroup lead of NASA's Earth Science Enterprise Visions2025, 2001 - 2003.

  • Directing Board, Sub-Commission Geophysical Fluids, Commission 3, IAG, 2003 - 2007.

  • Review Board Member, for the University of California System-wide Institute of Geophysics and Planetary Physics, 2004.

  • President-elect, Geodesy Section, American Geophysical Union, 2002 - 2004.

  • President, Geodesy Section, American Geophysical Union, 2004 - 2006.

  • Director (founding), GPS Scientific Applications and Research Center, Taiwan, 2006 - 2008.

  • President, Chinese Geoscience Union (CGU), 2008-.

  • Organizing Committee, IAU Commission 19, “Earth Rotation”, 2009 - .

[Affiliation]

  • Member, American Geophysical Union, since 1976.

  • Member, International Astronomical Union, since 2006.

  • Member of numerous IUGG/IAG Special Study Groups


[Publications]

  1. Chao, B. F., and F. Gilbert, Autoregressive estimation of complex eigenfrequencies in low frequency seismic spectra, Geophys. J. Roy. Astron. Soc., 63, 641‑657, 1980.

  2. Chao, B. F., Symmetry and terrestrial spectroscopy, Geophys. J. Roy. Astron. Soc., 66, 285‑312, 1981.

  3. Chao, B. F., Excitation of normal modes on non‑rotating and rotating earth models, Geophys. J. Roy. Astron. Soc., 68, 295‑315, 1982.

  4. Chao, B. F., Autoregressive harmonic analysis of the Earth's polar motion using homogeneous ILS data, J. Geophys. Res., 88, 10299‑10307, 1983.

  5. Chao, B. F., Normal mode study of the Earth's rigid-body motions, J. Geophys. Res., 88, 9437‑9442, 1983.

  6. Chao, B. F., Interannual length-of-day variation with relation to the Southern Oscillation / El Nińo, Geophys. Res. Lett., 11, 541‑544, 1984.

  7. Chao, B. F., On excitation of Earth's free wobble and reference frames, Geophys. J. Roy. Astron. Soc., 79, 555‑563, 1984.

  8. Chao, B. F., Predictability of the Earth's polar motion, Bull. Geod., 59, 81‑93, 1985.

  9. Chao, B. F., On the excitation of the Earth's polar motion, Geophys. Res. Lett., 12, 526‑529, 1985.

  10. Chao, B. F., As the world turns, EOS, Trans. Amer. Geophys. Union, 46, 766‑770, 1985.

  11. Gross, R. S., and B. F. Chao, Excitation study of the LAGEOS‑derived Chandler wobble, J. Geophys. Res., 90, 9369‑9380, 1985.

  12. Chao, B. F., Reply to Hide, Geophys. Res. Lett., 14, 247, 1987.

  13. Chao, B. F., W. P. O'Connor, A. T. C. Chang, D. K. Hall, and J. L. Foster, Snow‑load effect on the Earth's rotation and gravitational field, 1979-1985, J. Geophys. Res., 92, 9415‑9422, 1987.

  14. Chao, B. F. and Gross, R. S., Changes in the Earth's rotation and low‑degree gravitational field induced by earthquakes, Geophys. J. Roy. Astron. Soc., 91, 569‑596, 1987.

  15. Runcorn, S. K., G. A. Wilkins, E. Groten, H. Lenhardt, J. Campbell, R. Hide, B. F. Chao, A. Souriau, J. Hinderer, H. Legros, J. L. Le Mouel, and M. Feissel, The excitation of the Chandler wobble, Survey in Geophysics, 9, 419‑449, 1988.

  16. Chao, B. F., and W. P. O'Connor, Effect of a uniform sea level change on the Earth's rotation and gravitational field, Geophys. J., 93, 191‑193, 1988.

  17. Chao, B. F., and W. P. O'Connor, Global surface water‑induced seasonal variations in the Earth's rotation and gravitational field, Geophys. J., 94, 263‑270, 1988.

  18. Chao, B. F., Correlation of interannual length-of-day variation with El Nińo / Southern Oscillation, 1972‑1986, J. Geophys. Res., 93, 7709‑7715, 1988.

  19. Chao, B. F., Excitation of the Earth's polar motion due to mass variations in major hydrological reservoirs, J. Geophys. Res., 93, 13811‑13819, 1988.

  20. Rubincam, D. P., B. F. Chao, K. H. Schatten, and W. W. Sager, Non-Newtonian gravity or gravity anomalies? EOS, Trans. Amer. Geophys. Union, 69, 1636, 1988.

  21. Chao, B. F., Feynman's dining hall dynamics, Phys. Today, 42, #2, 15, 1989.

  22. Chao, B. F., Length‑of‑day variations caused by El Nińo-Southern Oscillation and Quasi-Biennial Oscillation, Science, 243, 923‑925, 1989.

  23. Rubincam, D. P., B. F. Chao, and K. H. Schatten, Application of internal gravitational field equations to geophysical measurement of G, J. Geophys. Res., 94, 7563‑7566, 1989.

  24. Chao, B. F., and D. P. Rubincam, The gravitational field of Phobos, Geophys. Res. Lett., 16, 859‑862, 1989.

  25. Chao, B. F., Comment on "Moment of inertia of three‑dimensional models of the Earth" by T. Tanimoto, Geophys. Res. Lett., 16, 1075, 1989.

  26. Chao, B. F., and D. P. Rubincam, Variations of Mars' gravitational field and rotation due to seasonal CO2 exchange, J. Geophys. Res., 95, 14755-14760, 1990.

  27. Chao, B. F., Comment on "A new method of spectral analysis and its application to the Earth's free oscillation: the "Sompi" method" by Hori et al., J. Geophys. Res., 95, 19789-19790, 1990.

  28. Gross, R. S., and B. F. Chao, The global geodynamics effect of the Macquarie Ridge earthquake, Geophys. Res. Lett., 17, 1009-1012, 1990.

  29. Chao, B. F., On the use of maximum entropy / autoregressive spectrum in harmonic analysis of time series, Pure and Applied Geophys., 134, 303-311, 1990.

  30. Chao, B. F., and A. Y. Au, Temporal variation of Earth's zonal gravitational field caused by atmospheric mass redistribution: 1980-1988, J. Geophys. Res., 96, 6569!6575, 1991.

  31. Chao, B. F., and A. Y. Au, Atmospheric excitation of the Earth's annual wobble: 1980!1988, J. Geophys. Res., 96, 6577-6582, 1991.

  32. Liu, H. S., and B. F. Chao, The Earth's equatorial principal axes and moments of inertia, Geophys. J. Int., 106, 699-702, 1991.

  33. Chao, B. F., Man, water, and sea level, EOS, Trans. Amer. Geophys. Union, 72, 492, 1991.

  34. Chao, B. F., As the world turns, II, EOS, Trans. Amer. Geophys. Union, 72, 550-551, 1991.

  35. Chao, B. F., D. N. Dong, H. S. Liu, and T. A. Herring, Libration in the Earth's rotation, Geophys. Res. Lett., 18, 2007-2010, 1991.

  36. Chao, B. F., Excitation of Earth's polar motion by atmospheric angular momentum variations, 1980-1990, Geophys. Res. Lett., 20, 253-256, 1993.

  37. Nerem, R. S., B. F. Chao, A. Y. Au, J. C. Chan, S. M. Klosko, N. K. Pavlis, and R. G. Williamson, Temporal variations of the Earth's gravitational field from satellite laser ranging to LAGEOS, Geophys. Res. Lett., 20, 595-598, 1993.

  38. Chao, B. F., Are autoregressive models sensitive to initial conditions? EOS, Trans. Amer. Geophys. Union, 74, 132-134, 1993.

  39. Chao, B. F., The Geoid and Earth Rotation, in Geophysical Interpretations of Geoid, ed. P. Vanicek and N. Christou, CRC Press, Boca Raton, 1994.

  40. Ray, R. D., D. J. Steinberg, B. F. Chao, and D. E. Cartwright, Diurnal and semidiurnal variations in the Earth's rotation rate induced by oceanic tides, Science, 264, 830-832, 1994.

  41. Chao, B. F., Man-made lakes and global sea level, Nature, 370, 258, 1994.

  42. Rubincam, D. P., B. F. Chao, and P. C. Thomas, The gravitational field of Deimos, Icarus, 114, 63-67, 1995.

  43. Chao, B. F., and I. Naito, Wavelet analysis provides a new tool for studying Earth's rotation, EOS, Trans. Amer. Geophys. Union, 76, 161-165, 1995.

  44. Chao, B. F., R. D. Ray, and G. D. Egbert, Diurnal/semidiurnal oceanic tidal angular momentum: Topex/Poseidon models in comparison with Earth's rotation rate, Geophys. Res. Lett., 22, 1993-1996, 1995.

  45. Chao, B. F., and R. J. Eanes, Global gravitational change due to atmospheric mass redistribution as observed in Lageos' nodal residual, Geophys. J. Int. 122, 755-764, 1995.

  46. Chao, B. F., J. B. Merriam, and Y. Tamura, Geophysical analysis of zonal tidal signals in length of day, Geophys. J. Int., 122, 765-775, 1995.

  47. Chao, B. F., and R. S. Gross, Changes of the Earth's rotational energy induced by earthquakes, Geophys. J. Int., 122, 776-783, 1995.

  48. Chao, B. F., R. S. Gross, and D. N. Dong, Global gravitational energy changes induced by earthquakes, Geophys. J. Int., 122, 784-789, 1995.

  49. Chao, B. F., Anthropogenic impact on global geodynamics due to water impoundment in major reservoirs, Geophys. Res. Lett., 22, 3533-3536, 1995.

  50. Han, Y. B., Q. B. Li, and B. F. Chao, Records of ancient solar and lunar eclipses and study of variation of the Earth’s rotation, Dev. Geophys., 10 (in Chinese), 43-50, 1995.

  51. Chao, B. F., R. S. Gross, and Y. B. Han, Seismic excitation of the polar motion, 1977-1993, Pure and Applied Geophysics, 146, 407-419, 1996.

  52. Chao, B. F., Y. B. Han, and R. S. Gross, On seismic excitation of the polar motion, Chinese Science Bulletin, 41, 832-836, 1996.

  53. Zhu, Y., C. K. Shum, M. K. Cheng, B. D. Tapley, and B. F. Chao, Long-period variations in gravity field caused by mantle anelasticity, J. Geophys. Res., 101, 11243-11248, 1996.

  54. Ray, R. D., R. J. Eanes, and B. F. Chao, Detection of tidal dissipation in the solid Earth by satellite tracking and altimetry, Nature 381, 595-597, 1996.

  55. Chao, B. F., R. D. Ray,  J. M. Gipson, G. D. Egbert, and C. Ma, Diurnal/semidiurnal polar motion excited by variations in oceanic tidal angular momentum, J. Geophys. Res., 101, 20,151-20,163, 1996.

  56. Chao, B. F., A concrete terrestrial testimony of Milankovitch cycle in Earth=s changing obliquity, EOS, Trans. Amer. Geophys. Union, 77, 433, 1996. Also in Earth in Space, AGU, Dec, 1996.

  57. Furuya, M., and B. F. Chao, Estimation of period and Q of the Chandler wobble, Geophys. J. Int. 127, 693-702, 1996.

  58. Ray, R. D., B. F. Chao, Z. Kowalik, and A. Proshutinsky, Angular momentum of Arctic Ocean tides, J. Geodesy, 71, 344-350, 1997.

  59. Chao, B. F., Earth rotation, Encyclopedia of Planetary Sciences, Chapman and Hall, New York, pp. 990, 1997.

  60. Dehant, V., C. R. Wilson, D. A. Salstein, B. F. Chao, R. S. Gross, Ch. Le Provost, and R. M. Ponte, Study of Earth's rotation and geophysical fluids progresses, EOS, Trans. Amer. Geophys. Union, 78, 357-360, 1997.

  61. Lemoine, F. G., N. K. Pavlis, S. C. Kenyon, R. H. Rapp, E. C. Pavlis, and B. F. Chao, New high-resolution model developed for Earth's gravitational field, EOS, Trans. Amer. Geophys. Union 79, 113-118, 1998.

  62. Liu, H. S., and B. F. Chao, Wavelet spectral analysis of the Earth's orbital variations and paleoclimatic cycles, J. Atmos. Soc., 55, 227-236, 1998.

  63. Rubincam, D. P., B. Bills, and B. F. Chao, Incredible shrinking tropics, Sky and Telescope, 95,  #6, 37-38, 1998.

  64. Gross, R. S., B. F. Chao, and S. D. Desai, Effect of long-period ocean tides on the Earth's polar motion, Prog. in Oceanog., 40, 385-397, 1998.

  65. Chao, B. F., and R. D. Ray, Oceanic tidal angular momentum and Earth's rotation variations, Prog. in Oceanog., 40, 399-421, 1998.

  66. Clark, T. A., C. Ma, J. W. Ryan, B. F. Chao, J. M. Gipson, D. S. MacMillan, N. R. Vandenberg, T. M. Eubanks, A. E. Niell, Earth rotation measurement yields valuable information about the dynamics of the Earth system, EOS, Trans. Amer. Geophys. Union, 79, 205-209, 1998.

  67. Klosko, S. M., and B. F. Chao, The use of satellite laser ranging and long duration orbital changes to constrain geophysical models, in Dynamics of the Ice Age Earth: A Modern Perspective, ed. P. Wu, Trans Tech Pub., 533-556, 1998.

  68. Zhou, Y., D. Zheng, M. Zhao, and B. F. Chao, Interannual polar motion with relation to the North Atlantic Oscillation, Global and Planetary Change, 18, 79-84, 1998.

  69. Klosko, S. M., and B. F. Chao, Secular variations of the zonal gravity field, global sea level, and polar motion as geophysical constraints, Physics and Chemistry of the Earth, 23, 1091-1102, 1998.

  70. Ray, D. R., B. G. Bills, and B. F. Chao, Lunar and solar torques on the oceanic tides, J. Geophys. Res., 104, 17,653-17,659, 1999.

  71. Chao, B. F., and Y. H. Zhou, Meteorological excitation of interannual polar motion by the North Atlantic Oscillation, J. Geodynamics, 27, 61-73, 1999.

  72. Kuo, Y. H., B. F. Chao, and L. C. Lee, A Constellation of microsatellites promises to help in a range of geoscience research, EOS, Trans. Amer. Geophys. Union, 80, 467-471, 1999.

  73. Johnson, T. J., C. R. Wilson, B. F. Chao, Oceanic angular momentum variability estimated from the Parallel Ocean Climate Model, 1988-1998, J. Geophys. Res. 104, 25183-25196, 1999.

  74. Zheng, D.W., B. F. Chao, Y. Zhou, and N. Yu, Improvement of edge effect of the wavelet time-frequency spectrum: Application to the length of day series, J. Geod., 74, 249-254, 2000.

  75. Chao, B. F., E. C. Pavlis, C. W. Huang, C. C. Liu, C. K. Shum C. L. Tseng, and M. Yang, COSMIC: Geodetic applications in improving Earth's gravity model, Terr. Atmos. and Ocean. Sc., 11, 365-378, 2000.

  76. Chao, B.F., Renaming D Double Prime, EOS, Trans. Amer. Geophys. Union, 81, 46, 2000.

  77. Chao, B.F., Reply to “That ‘Dahm’ Layer”, EOS, Trans. Amer. Geophys. Union, 81, 210, 2000.

  78. Chao, B.F., V. Dehant, R.S. Gross, R.D. Ray, D.A. Salstein, M. M. Watkins, and C. R. Wilson, Space geodesy monitors mass transports in global geophysical fluids, EOS, Trans. Amer. Geophys. Union, 81, 247-250, 2000.

  79. Chen, J. L., C. R. Wilson, B. F. Chao, C. K. Shum and B. D. Tapley: Hydrological and oceanic excitations to polar motion and length-of-day variation, Geophys. J. Int., 141, 149-156, 2000.

  80. Chao, B. F., and R. S. Gross, Coseismic excitation of the Earth=s polar motion, in Polar Motion: Historical and Scientific Problems, IAU Coll. #178, ed. S. Dick, D. McCarthy, and B. Luzum, Astron. Soc. Pacific, San Francisco, 2000.

  81. O’Connor, W., B. F. Chao, D. Zheng, and A. Y. Au, Wind stress forcing of the North Sea Apole tide@, J. Geophys. Int., 142, 620-630, 2000.

  82. Chao, B. F., W.  O’Connor, D. Zheng, and A. Y. Au, Reply to Wunsch, J. Geophys. Int., 146, 266, 2001.

  83. Kuang, W., and B. F. Chao, Topographic core-mantle coupling in geodynamo modeling, Geophys. Res. Lett., 28, 1871-1874, 2001.

  84. Johnson, T. J., C. R. Wilson, B. F. Chao, Non-tidal oceanic contributions to gravitational field changes: Predictions of the Parallel Ocean Climate Model, J. Geophys. Res., 106, 11,315-11,334, 2001.

  85. Altamimi, Z., D. Angermann, D. Argus, G. Blewitt, C. Boucher, B. Chao, H. Drewes, R. Eanes, M. Feissel, R. Ferland, T. Herring, B. Holt, J. Johannson, K. Larson, C. Ma, J. Manning, C. Meertens, A. Nothnagel, E. Pavlis, G. Petit, J. Ray, J. Ries, H. Scherneck, P. Sillard, and M. Watkins, The Terrestrial Reference Frame and the dynamic Earth, EOS, Trans. Amer. Geophys. Union, 82, 273, 278-279, 2001.

  86. Cox, C. M., and B. F. Chao, Detection of a large-scale mass redistribution in the terrestrial system since 1998, Science, 297, 831-833, 2002.

  87. Fujita, M., B. F. Chao, B. V. Sanchez, and T. J. Johnson, Oceanic torques on solid Earth and their effects on Earth rotation: Results from the Parallel Ocean Climate Model, J. Geophys. Res., 107(B8), 10.1029/2001JB000339, 2002.

  88. Boy, J-P., and B.  F. Chao, Time-variable gravity signal during the water impoundment of China's Three-Gorges Reservoir, Geophys. Res. Lett, 29(24), 2200, doi:10.1029/2002GL016457, 2002.

  89. Kuang, W., B. F. Chao, Geodynamo modeling and core-mantle interactions, in Earth’s Core: Dynamics, Structure, Rotation, Geodynamics Series 31, ed. V. Dehant, K. Creager, S. Karato, and S. Zatman, Amer. Geophys. Union, Washington DC, 193-212, 2003.

  90. Chao, B. F., Geodesy is not just for static measurements any more, EOS, Trans. Amer. Geophys. Union, 84, 145-156, 2003.

  91. Chao, B. F., A. Y. Au, J-P Boy, and C. Cox, Time-variable gravity signal of an anomalous redistribution of water mass in extratropic Pacific during 1998-2002, G-Cubed Geochemistry Geophysics Geosystems, 4, 1096, doi:10.1029/2003GC00589, 2003.

  92. Donnellan, A., J. Rundle, J. Ries, G. Fox, M. Pierce, J. Parker, R. Crippen, E. DeJong, B. Chao, W. Kuang, D. McLeod, M. Matu’ura, J. Bloxham, Illuminating the Earth’s interior through advanced computing, Computing in Sc. and Eng., 6, No. 1, 36-44, 2003.

  93. Solomon, S., et al., Plan for living on a restless planet sets NASA’s solid Earth Agenda, EOS, Trans. Amer. Geophys. Union, 84, 485-491, 2003.

  94. Chao, B. F., and R. S. Gross, Did the 26 December 2004 Sumatra, Indonesia, earthquake disrupt the Earth’s rotation as the mass media have said? EOS, Trans. Amer. Geophys. Union, 86, 1-2, 2005.

  95. Plag, H. P., B. F. Chao, R. S. Gross, and T. van Dam, Forcing of polar motion in the Chandler frequency band: An opportunity to evaluate interannual climate variations, EOS, Trans. Amer. Geophys. Union, 86, 26, 2005.

  96. Chao, B. F., and D. A. Salstein, Mass, Momentum, and Geodynamics, in  Intraseasonal Variability of the Atmosphere-Ocean Climate System, eds. W. K. M. Lau and D. E. Waliser, Praxis Publishing, 2005.

  97. Chao, B. F., On inversion for mass distribution from global (time-variable) gravity field, J. Geodynamics, 39, 223-230, doi:10.1016/j.jog.2004.11.001, 2005.

  98. Rodell, M., B. F. Chao, A. Au, L. S. Kimball, and K. C. McDonald, Global biomass variation and its geodynamic effects, 1982-1998, Earth Interactions, 9, 1-19, 2005.

  99. Boy, J-P., and B. F. Chao, Precise evaluation of atmospheric loading effects on Earth’s time-variable gravity field, J. Geophys. Res., 110(B), 10.1029/2002JB002333, 2005.

  100. Vigo, I. M., D. Garcia, and B. F. Chao, Change of sea level trend in the Mediterranean and Black Seas, J. Marine Res., 63, 1085-1100, 2005.

  101. Garcia, D., B. F. Chao, J. Del Río, I. Vigo, and J. García-Lafuente, On the steric and mass-induced contributions to the annual sea level variations in the Mediterranean Sea, J. Geophys. Res., 111, C09030, doi:10.1029/2005JC002956, 2006.

  102. Gross, R. S., and B. F. Chao, The rotational and gravitational signature of the December 26, 2004 Sumatran earthquake, Survey in Geophys., doi: 10.1007/s10712-006-9008-1, 2006.

  103. Chao, B. F., Earth’s oblateness and its temporal variations, Special Issue “Earth Observation From Space”, Comptes rendus Geoscience, doi:10.1016/j.crte.2006.09.014, 2006.

  104. Garcia, D., I. M. Vigo, B. F. Chao, and M. C. Martinez, Vertical crustal motion along the Mediterranean Coast derived from ocean altimetry and tide gauge data, Pure and Appl. Geophys., 164, doi: 10.1007/s00024-007-0193-8, 2007.

  105. Jiang, W., W. Kuang, B. F. Chao, M. Fang, C. Cox, Understanding time-variable gravity due to core dynamical processes with numerical geodynamo modeling, in Dynamic Planet: Monitoring and Understanding a Dynamic Planet With Geodetic and Oceanographic Tools, IAG 130, eds. P. Tregoning and C. Rizos, Springer, 473-479, 2007.

  106. Yeh, T.K., C.S. Wang, C.S. Chen, and B.F. Chao, Automatic data-quality monitoring for continuous GPS tracking stations in Taiwan, Metrologia, 44, 393-401, 2007.

  107. García, D., B. F. Chao, J. Del Río, I. Vigo, and J. García-Lafuente, Reply to Comments on “On the steric and mass-induced contributions to the annual sea level variations in the Mediterranean Sea” by Fenoglio-Marc et al., J. Geophys. Res., 112, C12019, doi:10.1029/2007JC004465, 2007.

  108. Chao, B.F., Y.H. Wu, and Y.S. Li, Impact of artificial reservoir water impoundment on global sea level, Science, doi: 10.1126/science.1154580, 2008.

  109. Hwang, C.W., T.J. Lin, T.P. Tseng, and B.F. Chao, Modeling orbit dynamics of FORMOSAT-3/COSMIC Satellites for recovery of temporal gravity variations, IEEE Trans. Geosciences and Remote Sensing, 46, 3412-3423, 2008.

  110. Zhang, Z., B. F. Chao, Y. Lu, and H. Hsu, An effective filtering for GRACE time-variable gravity: Fan filter, Geophys. Res. Lett., 36, L17311, doi:10.1029/2009GL039459, 2009.

  111. Hwang, C.W., T.J. Lin, T.P. Tseng, D. Svehla, and B.F. Chao, Quality assessment of FORMOSAT-3/COSMIC and GRACE GPS observables: analysis of multipath, ionospheric delay and phase residual in orbit determination, in press, GPS Solutions, 2009.

  112. Chang, E.T., B.F. Chao, C.C. Chiang, and C.W. Hwang, Vertical crust motion of active plate convergence in Taiwan derived from tide gauge, altimetry and GPS data, submitted, 2009.

  113. Chao, B.F., and H.M. Yan, Relation between length-of-day variation and angular momentum of geophysical fluids, submitted, 2009.

  114.  Ogawa, R., B.F. Chao, K. Heki, Quadratic acceleration in GRACE time-variable gravity in relation to interannual hydrological changes, submitted, 2009.

  115. Vigo, I.M., J.M. Sanchez-Reales, M. Trottini, and B.F. Chao, Mediterranean sea level variations: Analysis of the satellite altimetric data, 1992-2008, submitted, 2009.

  116. García, D., B.F. Chao, and J.-P. Boy, Steric and mass-induced sea level variations in the Mediterranean Sea, revisited, submitted, 2009.