West Texas A&M University

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Naruki Hiranuma Bio
Dr. Nabarun Ghosh

Naruki Hiranuma (aka Seonggi Moon), Ph.D.

Assistant Professor of Environmental Science

Office: Natural Sciences Building 321
Email: nhiranuma@wtamu.edu
Phone: 806-651-3872
Home Page: www.researchgate.net/profile/Naruki_Hiranuma

Professional Profile

Dr. Hiranuma joined the Department of Life, Earth and Environmental Sciences (LEES) in 2016. He received a Ph.D. in Atmospheric Sciences from Texas A&M University in 2010 and completed post-doctoral training at Pacific Northwest National Laboratory in 2012. Before joining LEES, he was at Karlsruhe Institute of Technology in Germany to work on the German government-funded INUIT (Ice Nuclei research UnIT) project, and he led the collaborative multi-institutional laboratory work with a total of 17 institutions across the world to comprehensively study the heterogeneous ice formation of dust and biological aerosols in the atmosphere.

Teaching and Related Service

Dr. Hiranuma teaches research methods in environmental science, numerical methods in environmental science, fundamentals of environmental science, environment & man and associated lab courses. He also serves as an editorial board member of 2 journals (i.e., Journal of Environmental Science: Current Research; Journal of Environmental Science and Allied Research) and a proposal reviewer. He has published more than 10 first author peer-reviewed papers and presented the research at national and international scientific meetings on a regular basis. Dr. Hiranuma is a member of the American Geophysical Union (AGU) and European Geophysical Union (EGU). He is internationally sought after for scientific community services (e.g., chairing/conveying scientific sessions of AGU and EGU). Dr. Hiranuma has developed curricular modules with a local school district and provided outreach lectures at museum. These activities provided an important and well-received service to these organizations.

Research and Creative Activity

Dr. Hiranuma’s research interests exist in quantification of atmospheric aerosol-cloud-climate interactions, weather modification (e.g., precipitation enhancement, hail prevention) and assessment of aerosols’ impact on public health. At West Texas A&M University (WTAMU), he applies advanced aerosol measurement techniques to generate new knowledge on the aerosol-cloud interactions and mitigating regional concerns of agricultural dust that contains fine, coarse and biological aerosols on air quality and weather (e.g., hail) in the Texas Panhandle.

Dr. Hiranuma heads the Atmospheric and Aerosol Measurement Laboratory (A2ML) for an integrated laboratory and field studies, representing a new research capability of WTAMU. The research capabilities of A2ML include (1) quantifying atmospheric ice-nucleating ability of aerosols using an ice nucleation chamber, (2) cloud deconvolution by using counterflow virtual impactors, (3) characterization of physico-chemical properties of atmospheric particles and cloud residuals through a variety of single particle microscopy techniques (e.g., ESEM, EDX, Raman Microspectroscopy, STXM), and (4) developing physical parameterizations of obtained experimental results and implementing in atmospheric cloud process, weather and climate models. A unique combination of given capabilities enables to comprehensively assess what aerosol properties (i.e., chemical, physical or biological) matter the most for cloud formation.

Recent Awards

2018    DOE Office of Science Early Career Award

Title and ID: Implications of aerosol physicochemical properties including ice nucleation from ARM mega sites towards understanding atmospheric cloud microphysical processes (DE-FOA-0001761)
Total Award Period Covered: 09/01/2018 - 08/31/2023

2018    EUROCHAMP-2020 Infrastructure Activity Grant

Title and ID: AIDA (Aerosol Interaction and Dynamics in the Atmosphere) investigation on the ice nucleation activity of dust particles emitted from cattle feeding operations in the Texas Panhandle (Grant agreement No 730997; AIDA-005-2018)
Total Award Period Covered: 10/08/2018 - 10/26/2018

Selected Publications

[1] Suski, K. J., Bell, D. M., Hiranuma, N., Möhler, O., Imre, D., and Zelenyuk, A.: Activation of intact bacteria and bacterial fragments mixed with agar as cloud droplets and ice crystals in cloud chamber experiments, Atmos. Chem. Phys., 18, 17497–17513, 2018.

[2] Ullrich, R., Hoose, C., Möhler, O., Niemand, M., Wagner, R., Höhler, K., Hiranuma, N., Saathoff, H., and Leisner, T.: A new ice nucleation active site parametrization for desert dust and soot, J. Atmos. Sci., 74, 699–717, 2017.

[3] Hiranuma, N., Möhler, O., Kulkarni, G., Schnaiter, M., Vogt, S., Vochezer, P., Järvinen, E., Wagner, R., Bell, D. M., Wilson, J., Zelenyuk, A., and Cziczo, D. J.: Development and characterization of an ice-selecting pumped counterflow virtual impactor (IS-PCVI) to study ice crystal residuals, Atmos. Meas. Tech., 9, 3817–3836, 2016.

[4] Hiranuma, N., Augustin-Bauditz, S., Bingemer, H., Budke, C., Curtius, J., Danielczok, A., Diehl, K., Dreischmeier, K., Ebert, M., Frank, F., Hoffmann, N., Kandler, K., Kiselev, A., Koop, T., Leisner, T., Möhler, O., Nillius, B., Peckhaus, A., Rose, D., Weinbruch, S., Wex, H., Boose, Y., DeMott, P. J., Hader, J. D., Hill, T. C. J., Kanji, Z. A., Kulkarni, G., Levin, E. J. T., McCluskey, C. S., Murakami, M., Murray, B. J., Niedermeier, D., Petters, M. D., O'Sullivan, D., Saito, A., Schill, G. P., Tajiri, T., Tolbert, M. A., Welti, A., Whale, T. F., Wright, T. P., and Yamashita, K.: A comprehensive laboratory study on the immersion freezing behavior of illite NX particles: a comparison of seventeen ice nucleation measurement techniques, Atmos. Chem. Phys., 15, 2489–2518, 2015a.

[5] Hiranuma, N., Möhler, O., Yamashita, K., Tajiri, T., Saito, A., Hoffmann, N., Hoose, C., Jantsch, E., Koop, T., and Murakami. M.: Ice nucleation by cellulose and its potential contribution to ice formation in clouds, Nature Geoscience, 8, 273–277, 2015b.

[6] Hiranuma, N., Hoffmann, N., Kiselev, A., Dreyer, A., Zhang, K., Kulkarni, G., Koop, T., and Möhler, O.: Influence of surface morphology on the immersion mode ice nucleation efficiency of hematite particles, Atmos. Chem. Phys., 14, 2315–2324, 2014a.

[7] Hiranuma, N., Paukert, M., Steinke, I., Zhang, K., Kulkarni, G., Hoose, C., Schnaiter, M., Saathoff, H., and Möhler, O.: A comprehensive parameterization of heterogeneous ice nucleation of dust surrogate: laboratory study with hematite particles and its application to atmospheric models, Atmos. Chem. Phys., 14, 13145–13158, 2014b.

[8] Hiranuma, N., Brooks, S. D., Moffet, R. C., Glen, A., Laskin, A., Gilles, M. K., Liu, P., MacDonald, A. M., Strapp, J. W., and McFarquhar, G. M.: Chemical characterization of individual particles and residuals of cloud droplets and ice crystals collected on board research aircraft in the ISDAC 2008 study, J. Geophys. Res. Atmos., 118, 6564–6579, 2013.

[9] You, Y., Renbaum-Wolff, L., Carreras-Sospedra, M., Hanna, S. J., Hiranuma, N., Kamal, S., Smith, M. L., Zhang, X., Weber, R. J., Shilling, J. E., Dabdub, D., Martin, S. T., and Bertram, A. K.: Images reveal that atmospheric particles can undergo liquid-liquid phase separations, P. Natl. Acad. Sci. USA, 109, 13188–13193, 2012.

[10] Hiranuma, N., Kohn, M., Pekour, M. S., Nelson, D. A., Shilling, J. E., and Cziczo, D. J.: Droplet activation, separation, and compositional analysis: laboratory studies and atmospheric measurements, Atmos. Meas. Tech., 4, 2333–2343, 2011.