Center for experimental study of subsurface environmental processes



Toshihiro Sakaki

Toshihiro Sakaki

Research Assistant Professor

Education

Dissertation Title

The role of fracture-matrix interaction in drying of unsaturated fractured rock: experiments and modeling

Research Publications

Peer-Reviewed Pages

  1. Sakaki, T., and H. Rajaram (2006), Performance of different types of TDR probes for water content measurement in partially saturated rocks, Water Resources Research, 42, W07404, doi:10.1029/2005WR004643.
  2. Sakaki, T., H. Rajaram, and T. Naganuma (2003), Fractosphere, the site of hydrogeological-microbial interaction: Current and future perspectives, J. of Geography, 112(2), 288-301.
  3. Sakaki, T., H. Rajaram, H. Matsui, and T. Naganuma (2002), Moisture migration in unsaturated fractured sedimentary rock, Monthly Chikyu, Special edition No. 36, 68-74.
  4. Lin, W.R., M. Takahashi, M. Yasuhara, and T. Sakaki (2001), Application of apparent dielectric constant measurement to determination of volumetric water content of rocks and soils by using time domain reflectometry technique, Chishitsu News, Vol. 566, No. 10, 22-31.
  5. Lin, W.R., N. Hirahara, K. Nishida, M. Takahashi, and T. Sakaki (1999), Effects of probe installation method, crack existence and high temperature on apparent dielectric constant determined by time domain reflectometry in rocks, Journal of Japanese Association of Hydrological Sciences, 29, 4, 189-204.
  6. Sakaki, T., K. Sugihara, T. Adachi, K. Nishida, and W.R. Lin (1998), Application of time domain reflectometry to determination of volumetric water content in rock, Water Resources Research, 34, 10, 2623-2631.
  7. Sakaki, T., T. Kikuchi, T. Adachi, K. Nishida, and W.R. Lin (1998), Comparison of accuracy and practicality of installation methods of time domain reflectometry probes for rock water content measurement, Proceedings of the 42nd Japan Geotechnical Symposium, 19-24.

Proceedings Papers

  1. Sakaki, T., A. Limsuwat, and T. H. Illangasekare (2007), Water retention behavior of sand as affected by a surrounding medium, Hydrology Days, Poster No. 22, March 19-22, Colorado State University, Fort Collins, CO.
  2. Sakaki, T., and T. H. Illangasekare (2006), Retention curve measurement for sands using a TDR-based long column and modified Tempe cell, AGU Fall meeting, Poster No. H51-0462, December 11-15, San Francisco, CA.
  3. Sakaki, T., M. Komatsu, and T. H. Illangasekare (2006), Preliminary exploration of dynamic effect in field soil retention curves: Direct laboratory quantification of material coefficient, AGU Fall meeting, Poster No. H51-0463, December 11-15, San Francisco, CA.
  4. Sakaki, T., S. E. Howington, J. P. Hallberg, and T. H. Illangasekare (2006), Improved Subsurface Model Calibration Using Soft Data on Geologic Heterogeneity, AGU Fall meeting, Poster No. H43-0476, December 11-15, San Francisco, CA.
  5. Sakaki, T., and T. H. Illangasekare (2006), Improved subsurface model calibration using soft data on geologic heterogeneity, Philadelphia Annual Meeting, October 22-25, Geological Society of America Abstracts with Programs, Vol. 38, No. 7, p. 111, Paper No. 40-9, Philadelphia Convention Center, Pennsylvania.
  6. Barnhart, K., T. H. Illangasekare, F. Fagerlund, T. Sakaki, D. W. Dean, and T. F. Russell (2006), DNAPL flow in heterogeneous porous media: A multi-scale stochastic approach, Czech-Japanese Seminar in Applied Mathematics 2006, September 14-16, Czech Technical University, Prague, Czech Republic.
  7. Sakaki, T., T. H. Illangasekare, and M. Komatsu (2006), Parameter estimation in a heterogeneous synthetic aquifer with different quantities of information on geologic features, Proceedings of the MODFLOW 2006 and More, May 22-24, Colorado School of Mines, Golden CO., 71-75.
  8. Sakaki, T., and T. H. Illangasekare (2006), Tempe cell based static capillary pressure – saturation relationships for sands: Conventional averaging method vs. point measurement, Hydrology Days, Poster No. 24, March 20-22, Colorado State University, Fort Collins, CO.
  9. Dean, D., T. Russell, K. Barnhart, T. H. Illangasekare, F. Fagerlund, M. Mathew, and T. Sakaki (2006), A stochastic differential equation approach for modeling DNAPL flow in heterogeneous porous media, Hydrology Days, March 20-22, Poster No. 21, Colorado State University, Fort Collins, CO.
  10. Sakaki, T., T. H. Illangasekare, and M. Komatsu (2005), Dependence of uncertainty in parameter estimation in non-stationary heterogeneous aquifers on the number and spatial distribution of observation wells, AGU Fall meeting, Poster No. H13D-1358, December 5-9, San Francisco, CA.
  11. Dean, D., T. Russel, K. Bernhart, T. H. Illangasekare, F. Fagerlund, M. Mathew, and T. Sakaki (2005), A Lagrangian to characterizing dispersion in heterogeneous porous media, AGU Fall meeting, December 5-9, San Francisco, CA.
  12. Uemura, K., T. Sakaki, and Y. Tanaka (1998), A study on modeling of partially penetrating well in 3D numerical analysis, Proceedings of the 53rd annual conference of the Japan society of civil engineers, 472-473 (in Japanese).
  13. Amemiya, K., H. Imai, T. Sato, T. Kikuchi, and T. Sakaki (1998), Unsaturated property measurement of sandstone I: Suction measurement, Proceedings of the 53rd annual conference of the Japan society of civil engineers, 472-473 (in Japanese).
  14. Sakaki, T. (1996), Quantitative evaluation of sampling volume of TDR-probes for soil water content measurement by numerical analysis, Proceedings of the 31st annual conference of the Japan society of civil engineers, 2073-2074 (in Japanese).
  15. Imai, H., T. Sakaki, and K. Sugihara (1996), Measurement of suction and water flux in unsaturated rock, Proceedings of symposium on various problems on permeability of unsaturated ground, 71-74 (in Japanese).
  16. Sakaki, T., K. Sugihara, and K. Nishida (1995), Estimation of volumetric water content in Tako sandstone using TDR, Shigen to Sozai Õ95, The Mining and Materials Processing Institute of Japan, T-4, 4 (in Japanese).
  17. Sakaki, T., K., Uemura, and Y. Tanaka (1993), A study on the modeling of well for plane seepage analysis, Proceedings of the 28th Japan national conference on geotechnical engineering, 2247-2248 (in Japanese).
  18. Uemura, K., T. Sakaki, and Y. Tanaka (1993), A study on the modeling of well for seepage analysis, Proceedings of the 28th Japan national conference on geotechnical engineering, 2245-2246 (in Japanese).

Professional Career

2007 to present: Research Assistant Professor, Colorado School of Mines, Golden, CO, U.S.A.

2004 to 2006: Postdoctoral Research Associate, Colorado School of Mines, Golden, CO, U.S.A.

1995-1998: Research Engineer, Technology Research Center, Taisei Corporation, Yokohama, Japan.

1993 to 1995: Exchange Research Engineer, Japan Nuclear Cycle Development Institute (JNC).

1991 to 1993: Research Engineer, Taisei Corporation, Tokyo, Japan.