Dr. Takamichi Iguchi

Research Associate, ESSIC UMCP
Mesoscale Atmospheric Processes Laboratory (Code 612)
NASA Goddard Space Flight Center
Greenbelt, MD 20771
phone: +1-301-614-6225
e-mail: takamichi.iguchi@nasa.gov

 

Education:

  • March 2007 Ph. D. in Earth and Planetary Science, The University of Tokyo
  • March 2003 Master in Earth and Planetary Science, The University of Tokyo
  • March 2001 Bachelor in Earth and Planetary Physics, The University of Tokyo

 

Research Experience:

  • May 2009 – Present Research Associate of ESSIC UMCP / NASA GSFC
  • April 2007 – May 2009 Postdoctoral Researcher of Frontier Sciences Project in Center for Climate System Research, The University of Tokyo

 

Honors and Awards:

  • Outstanding scientific research award (NASA GSFC, Mesoscale Atmospheric Processes Laboratory, 2012)

 

Research Interests: 

Dr. Iguchi takes a strong interest in the study of cloud and precipitation microphysics, especially the approach based on the numerical modeling and simulation. The principal achievement is the development of the Japan Meteorological Agency Nonhydrostatic Model (JMA-NHM) coupled with a spectral bin microphysics of Hebrew University Cloud Model (HUCM), and the Weather Research and Forecasting model (WRF) coupled with the same spectral bin microphysics. A large number of case-study simulations were conducted for cloud and precipitation scenes in field measurement campaigns of the Asian Atmospheric Particulate Environment Change Studies (APEX) and the NASA Global Precipitation Measurement Mission (GPM) Ground Validation (GV) programs. Evaluation of the developed models by comparison to various observation data and promotion of a better understanding of cloud and precipitation processes are important topics of the research.

 

Research Skills:

Dr. Iguchi has great experiences of using Fortran 77/90/95, MPI library, shell script on UNIX/Linux systems, and graphical tools, e.g. GrADS, NetCDF and GMT. The principal result of the model development is the coupling mesoscale models, i.e. Japan Meteorological Agency Nonhydrostatic Model (JMA-NHM) and Weather Research and Forecasting model (WRF) with a spectral bin microphysics (SBM) for cloud.

 

Publications:
1) refereed, already published papers

  1. Choi, I.-J., T. Iguchi, S.-W. Kim, T. Nakajima, and S.-C. Yoon, 2014: The effect of aerosol representation on cloud microphysical properties in northeast Asia. Meteorol. Atmos. Phys., 123, 181-194, doi:10.1007/s00703-013-0288-y.
  2. Matsui, T., T. Iguchi, X. Li, M. Han, W.-K. Tao, W. Petersen, T. LeCuyer, R. Meneghini, W. Olson, C. Kummerow, A. Hou, M. Schwaller, E. Stocker, and J. Kwiatkowski, 2013: GPM satellite simulator upon Ground Validation sites, Bull. Amer. Meteor. Soc., 94, 1653-1660. doi: 10.1175/BAMS-D-12-00160.1
  3. Iguchi, T., T. Matsui, A. Tokay, P. Kollias, and W.-K. Tao, 2012: Two distinct modes in one-day rainfall event during MC3E field campaign: Analyses of disdrometer observations and WRF-SBM simulation. Geophys. Res. Let., 39, L24805, doi:10.1029/2012GL053329.
  4. Iguchi, T., T. Matsui, J. J. Shi, W.-K. Tao, A. P. Khain, A. Hou, R. Cifelli, A. Heymsfield, and A. Tokay, 2012: Numerical analysis using WRF-SBM for the cloud microphysical structures in the C3VP field campaign: Impacts of supercooled droplets and resultant riming on snow microphysics. J. Geophys. Res., 117, D23206, doi:10.1029/2012JD018101.
  5. Iguchi, T., T. Nakajima, A. Khain, K. Saito, T. Takemura, H. Okamoto, T. Nishizawa and W.-K. Tao, 2012: Evaluation of cloud microphysics in JMA-NHM simulations using bin or bulk microphysical schemes through comparison with cloud radar observations., J. Atmos. Sci., 69, 2566-2586, DOI: 10.1175/JAS-D-11-0213.1.
  6. Sato, Y., K. Suzuki, T. Iguchi, I.-J. Choi, H. Kadowaki, T. Nakajima, 2012: Characteristics of correlation statistics between droplet radius and optical thickness of warm clouds simulated by a three-dimensional regional-scale spectral bin microphysics cloud model. J. Atmos. Sci., 69, 484–503, doi:10.1175/JAS-D-11-076.1
  7. Sato, Y., T. Nakajima, K. Suzuki, and T. Iguchi, 2009: Application of a Monte Carlo integration method to collision and coagulation growth processes of hydrometeors in a bin‐type model, J. Geophys. Res., 114, D9, doi:10.1029/2008JD011247.
  8. Iguchi, T., T. Nakajima, A. P. Khain, K. Saito, T. Takemura, and K. Suzuki, 2008: Modeling the influence of aerosols on cloud microphysical properties in the east Asia region using a mesoscale model coupled with a bin-based cloud microphysics scheme, J. Geophys. Res., 113, D14215, doi:10.1029/2007JD009774.

 

2) in press or accepted 

  1. Choi, I.-J., T. Iguchi, S.-W. Kim, T. Nakajima, and S.-C. Yoon, 2013: The effect of aerosol representation on cloud microphysical properties in northeast Asia. Meteorol. Atmos. Phys., doi:10.1007/s00703-013-0288-y, in revision.

 

3) submitted (and not rejected)

  1. Iguchi, T., T. Matsui, W.-K. Tao, A. Khain, V. T. J. Phillips, C. Kidd, T. L'Ecuyer, S. A. Braun, and A. Hou, 2013: WRF-SBM simulations of melting layer structure in mixed-phase precipitation events observed during LPVEx, J. Appl. Meteor. Climatol., submitted.

 

4) others

  1. Choi, I.-J., T. Iguchi, S.-W. Kim, S.-C. Yoon, and T. Nakajima, 2010: Simulation of the aerosol effect on the microphysical properties of shallow stratocumulus clouds over East Asia using a bin-based meso-scale cloud model. Atmos. Chem. Phys. Discuss., 10, 23449-23495, doi:10.5194/acpd-10-23449-2010.
  2. Iguchi, T., 2007: A numerical study of the cloud microphysical properties in the East China Sea region by a bin-type cloud resolving model, Ph.D. dissertation, CCSR Report No. 39, The University of Tokyo, 2007.

 

Presentations:

  1. Iguchi T., 2014 (invited): Real case simulations using spectral bin microphysics: Remarks on precedence research and future activity, The 4th Research Meeting of Ultrahigh Precision Meso-scale Weather Prediction, Kobe, Japan, March 7, 2014.
  2. Iguchi T., T. Matsui, A. Tokay, P. Kollias, and W.-K. Tao, 2014: WRF-SBM simulation for the two distinct modes in one-day rainfall event during MC3E, Yokohama Institute for Earth Science, Japan Agency For Marine-Earth Science and Technology, Yokohama, Japan, March 4, 2014.
  3. Iguchi T., T. Matsui, A. Tokay, P. Kollias, and W.-K. Tao, 2014: WRF-SBM simulation for the two distinct modes in one-day rainfall event during MC3E, Colloquium series in Forecast Research Department, Meteorological Research Institute, Tsukuba, Japan, March 3, 2014.
  4. Iguchi T., T. Matsui, A. Tokay, P. Kollias, and W.-K. Tao, 2013 (invited): WRF-SBM simulation for the two distinct modes in one-day precipitation event during MC3E, Topics in Atmospheric and Oceanic Sciences, School of Marine and Atmospheric Sciences, Stony Brook University, NY, October 30, 2013. http://www.youtube.com/watch?v=eQPL-cGh3Pg
  5. Iguchi T., T. Matsui, and W.-K. Tao, 2013: Development of WRFSBM database upon GPM ground validation sites, 2013 Young Scientist Forum, Greenbelt, MD, June 17, 2013.
  6. Iguchi T., T. Matsui, and W.-K. Tao, 2013: WRF-SBM simulation of radar signatures containing melting layers observed in LPVEx, 2013 PMM Science Team Meeting, Annapolis, MD, March 18-21, 2013.
  7. Iguchi T., T. Matsui, and W.-K. Tao, 2012: WRF-SBM simulation for the lake-effect and synoptic snowfall events: Impact of riming on snow aggregates, The 2nd International Workshop on Nonhydrostatic Numerical Models, Sendai, Japan, November 28-30, 2012.
  8. Iguchi T., T. Matsui, and W.-K. Tao, 2012: Development of the synthetic GPM simulator: construction of GV-constrained WRFSBM database, CCSR seminar, Division of Climate System Research, Atmospheric and Ocean Research Institute, the University of Tokyo, Kashiwa, Japan, November 22, 2012.
  9. Iguchi T., T. Matsui, and W.-K. Tao, 2012: Development of the synthetic GPM simulator: construction of GV-constrained WRFSBM database, The 4th TRMM and GPM International Science Conference, Tokyo, Japan, November 13-16, 2012.
  10. Iguchi T., T. Matsui, and W.-K. Tao, 2012: WRF-SBM simulation upon LPVEx field campaign for development of the synthetic GPM simulator, 16th International Conference on Clouds and Precipitation, Leipzig, Germany, July 30-August 3, 2012.
  11. Iguchi T., T. Matsui, and W.-K. Tao, 2012: WRF-SBM simulation upon C3VP field campaign for development of the synthetic GPM simulator, 5th International Workshop for GPM Ground Validation, Toronto, Canada, July 10-12, 2012.
  12. Iguchi T., T. Matsui, and W.-K. Tao, 2011: Sensitivity experiments of condensation nuclei effect on cloud microphysics using WRF-SBM for MC3E case., American Geophysical Union Fall Meeting, San Francisco, CA, December 5-9, 2011.
  13. Iguchi T., T. Matsui, J. J. Shi, X. Li and W. Tao, 2010: Numerical experiment of lake-effect snowstorm in C3VP campaign using the WRF model coupled with spectral bin microphysics., American Geophysical Union Fall Meeting, San Francisco, CA, December 13-17, 2010.
  14. Iguchi T., T. Matsui, J. J. Shi and W. Tao, 2010: Numerical experiment of lake-effect snowstorm using the WRF model coupled with spectral bin microphysics for cloud., AMS 13th Conference on Cloud Physics, Portland, OR, June 28 – July 2, 2010.
  15. Iguchi T., T. Nakajima, A. Khain, K. Saito, T. Takemura, H. Okamoto, T. Nishizawa and W. Tao, 2009: Evaluation of cloud microphysics simulated by a meso-scale model coupled with a bin-based scheme using observation data by W-band radar., American Geophysical Union Fall Meeting, San Francisco, CA, December 14-18, 2009.
  16. Iguchi, T., T. Nakajima, A. P. Khain, K. Saito, T. Takemura, H. Okamoto, and T. Nishizawa (2008), Evaluation of vertical cloud structures in a meso-scale model simulation with a bin cloud microphysics using shipborne radar/lidar data, IRS 2008, Brazil, Aug. 2, 2008.
  17. Iguchi, T., T. Nakajima, A. P. Khain, K. Saito, T. Takemura, H. Okamoto, and T. Nishizawa (2008), A simulation of radar- and lidar-derived vertical structures of frontal cloud using a bin-type cloud microphysical model, ICCP 2008, Mexico, Jul. 8, 2008.