Nishida Prize

Nobuhiro Moteki


Observational studies on light absorbing aerosols and their climate impacts

A list of five major papers

  • Moteki, N., Capabilities and limitations of the single-particle extinction and scattering method for estimating the complex refractive index and size-distribution of spherical and non-spherical submicron particles. Journal of Quantitative Spectroscopy and Radiative Transfer, 243, 106811, 2020.
  • Moteki, N., Mori, T., Matsui, H., Ohata, S., Observational constraint of in-cloud supersaturation for simulations of aerosol rainout in atmospheric models, npj Climate and Atmospheric Science, 2, 6, doi: 10.1038/s41612-019-0063-y, 2019.
  • Moteki, N., Adachi, K., Ohata, S., Yoshida, A., Harigaya, T., Koike, M., Kondo, Y., Anthropogenic iron oxide aerosols enhance atmospheric heating, Nature communications, 8, 15329, 2017.
  • Moteki, N., Kondo, Y., Oshima, N., Takegawa, N., Koike, M., Kita, K., Matsui, H., Kajino, M., Size dependence of wet removal of black carbon aerosols during transport from the boundary layer to the free troposphere, Geophysical Research Letters, 39, 13, 2012.
  • Moteki, N., Kondo, Y., Dependence of laser-induced incandescence on physical properties of black carbon aerosols: Measurements and theoretical interpretation, Aerosol Science and Technology, 44, 8, 663-675, 2010.

Major achievements

Nobuhiro Moteki gained various observational findings crucial for quantitative simulations of the aerosol-cloud interactions and radiation processes in the global atmosphere, mostly through his originally developed techniques for single-particle analysis. He is one of the world leaders in this ~15 years development of the single-particle laser induced incandescence (single-particle soot photometer) that enabled high-precision fast measurements of black carbon (BC) aerosols. This instrument was used not only for ground-based observations but also for the aircraft campaigns leaded by NASA in U.S.A. and Alfred Wegener Institute in Germany. BC data acquired by his research group have been used worldwide for model validations and contributed to constrain the spatial distribution of BC in global scale. He also developed techniques to quantify the mixing state of BC with other aerosols and BC concentration in water, snow, and ice core, and gained new findings on the wet deposition mechanisms of aerosols and long-term change of anthropogenic BC. In addition, he has developed a technique to measure various kinds of aerosols (e.g., iron oxides, dust) based on the theory of light scattering and absorption, and is conducting an international joint research with NOAA of the United States. In summary, he has leaded international research on climate effects of aerosols, and his cutting-edge achievements are highly regarded worldwide.


Makoto Koike