YOKO IWAMOTO

Last Updated :2020/08/03

Affiliations, Positions
Graduate School of Integrated Sciences for Life, Associate Professor
Web Site
E-mail
y-iwamotohiroshima-u.ac.jp
Other Contact Details
1-7-1 Kagamiyama, Higashi-Hiroshima, 739-8521 JAPAN, Japan
TEL : (+81)82-424-4568 FAX : (+81)
Self-introduction
I am working on physical measurement and chemical analysis of particulate matter present in the atmosphere and oceans, elucidation of biogeochemical cycles between the atmosphere and the oceans through the particulate matter, and elucidation of the interaction between atmospheric aerosol, cloud, and precipitation.

Basic Information

Major Professional Backgrounds

  • 2009/04, 2011/09, Nagoya University, Institute for Advanced Research, Researcher
  • 2011/10, 2012/03, Nagoya University, Graduate School of Environmental Sciences, Reseracher
  • 2012/04, 2014/03, Kanazawa University, Institute of Nature and Environmental Technology, Researcher
  • 2014/04, 2017/01, Tokyo University of Science, Department of Physics Division I, Faculty of Science, Assistant Professor
  • 2017/02/01, 2019/03/31, Hiroshima University, Graduate School of Biosphere Science, Assistant Professor

Educational Backgrounds

  • Science University of Tokyo, Faculty of Science, Department of Physics Division I, Japan, 2000/04, 2004/03
  • The University of Tokyo, Graduate School of Science, Department of Earth and Planetary Science, Japan, 2004/04, 2006/03
  • The University of Tokyo, Graduate School of Science, Department of Earth and Planetary Science, Japan, 2006/04, 2009/03

Academic Degrees

  • Ph.D, The University of Tokyo

Educational Activity

  • 【Bachelor Degree Program】School of Integrated Arts and Sciences : Department of Integrated Global Studies
  • 【Master's Program】Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Life and Environmental Sciences
  • 【Doctoral Program】Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Life and Environmental Sciences

Research Fields

  • Environmental science;Environmental analyses and evaluation;Environmental dynamic analysis

Research Keywords

  • Atmospheric aerosol
  • Cloud condensation nuclei
  • Biochemical cycles between atmosphere and ocean

Affiliated Academic Societies

  • The Oceanographic Society of Japan
  • The Japan Society of Atmospheric Chemistry
  • The Geochemical Society of Japan
  • Japan Association of Aerosol Science and Technology
  • American Geophysical Union
  • Japan Geoscience Union

Educational Activity

Course in Charge

  1. 2020, Liberal Arts Education Program1, 4Term, Experimental Methods and Laboratory Work in Science B
  2. 2020, Liberal Arts Education Program1, 3Term, Contemporary World Issues I
  3. 2020, Liberal Arts Education Program1, 1Term, Experimental Methods and Laboratory Work in Chemistry I
  4. 2020, Liberal Arts Education Program1, 2Term, Experimental Methods and Laboratory Work in Chemistry II
  5. 2020, Graduate Education (Doctoral Program) , Intensive, SDGs Ideas Mining Seminar for Specialists
  6. 2020, Undergraduate Education, 3Term, Laboratory Course in Natural Environmental Sciences A
  7. 2020, Undergraduate Education, 3Term, Practical Methods in Natural Environmental SciencesA
  8. 2020, Undergraduate Education, Intensive, Shipboard Exercise for Natural Environment Studies
  9. 2020, Undergraduate Education, 1Term, Laboratory Course in Natural Environmental Sciences B
  10. 2020, Undergraduate Education, 1Term, Practical Methods in Natural Environmental SciencesB
  11. 2020, Undergraduate Education, 2Term, Laboratory Course in Natural Environmental Sciences C
  12. 2020, Undergraduate Education, 2Term, Practical Methods in Natural Environmental SciencesC
  13. 2020, Undergraduate Education, 3Term, Earth Environmental Chemistry
  14. 2020, Undergraduate Education, 2Term, Earth Environmental Chemistry
  15. 2020, Undergraduate Education, 2Term, Experimental Methods and Laboratory Work in Science for IGS I
  16. 2020, Undergraduate Education, 2Term, Experimental Methods and Laboratory Work in Science for IGS II
  17. 2020, Undergraduate Education, 4Term, Biogeochemistry I
  18. 2020, Undergraduate Education, 4Term, Biogeochemistry II
  19. 2020, Graduate Education (Master's Program) , 4Term, Atmosphere-Hydrosphere Dynamics I
  20. 2020, Graduate Education (Doctoral Program) , 2Term, Seminar in Integrated Arts and Scirnces II
  21. 2020, Graduate Education (Master's Program) , 2Term, Seminar in Integrated Arts and Sciences I
  22. 2020, Graduate Education (Master's Program) , Academic Year, Research for Academic Degree Dissertation in Life and Environmental Sciences
  23. 2020, Graduate Education (Master's Program) , 1Term, Exercises in Life and Environmental Sciences A
  24. 2020, Graduate Education (Master's Program) , 2Term, Exercises in Life and Environmental Sciences A
  25. 2020, Graduate Education (Master's Program) , 3Term, Exercises in Life and Environmental Sciences B
  26. 2020, Graduate Education (Master's Program) , 4Term, Exercises in Life and Environmental Sciences B
  27. 2020, Graduate Education (Master's Program) , 1Term, Introduction to Integrated Arts and Sciences
  28. 2020, Graduate Education (Master's Program) , 4Term, Atmospheric Hydrosphere Chemistry
  29. 2020, Graduate Education (Master's Program) , 2Term, Fundamental Seminar in Integrated Arts and Sciences
  30. 2020, Graduate Education (Doctoral Program) , 4Term, Exercises in Integrated Life Sciences
  31. 2020, Graduate Education (Doctoral Program) , Academic Year, Research for Academic Degree Dissertation in Integrated Life Sciences

Research Activities

Academic Papers

  1. Factors controlling the degradation of hydrogen peroxide in river water, and the role of riverbed sand, Science of The Total Environment, 716, 136971
  2. Individual particle analysis of marine aerosols collected during the North-South transect cruise in the Pacific Ocean and its marginal seas, Journal of Oceanography, 75, 513-524
  3. Tracing the sources and formation pathways of atmospheric particulate nitrate over the Pacific Ocean using stable isotopes, ATMOSPHERIC ENVIRONMENT, 209, 152-166, 20190715
  4. Ground-based observation of lightning-induced nitrogen oxides at a mountaintop in free troposphere, JOURNAL OF ATMOSPHERIC CHEMISTRY, 76(2), 133-150, 201906
  5. Optimization for the Determination of Hydrogen Peroxide in River Water Based on the Fenton Reaction with Terephthalate, BUNSEKI KAGAKU, 68, 125-131
  6. Characterization of Humic-Like Substances (HULIS) in Atmospheric Aerosols Using Aerosol Mass Spectrometry or Proton Nuclear Magnetic Resonance Spectroscopy, Humic Substances Research, 15(1), 11-20, 20190329
  7. Biogeochemical cycle between atmosphere and ocean via particulate matters, Archives of Atmospheric Chemistry Research, 40, 040A04, 2019, 1, 28
  8. Continuous measurement of hygroscopic characteristics of PM2.5 using an optical particle counter -including case analysis of high concentration events in December 2016-, Earozoru Kenkyu, 33(4), 238-247
  9. Biogenic sulfur compounds in spring phytoplankton bloom in the western North Pacific off the coast of northern Japan, PROGRESS IN OCEANOGRAPHY, 165, 145-157, 2018
  10. Development of an Analytical Method for the Detection of NOz and Its Application to the Atmospheric Analysis at a Mountain Site, BUNSEKI KAGAKU, 67(6), 333-340, 201806
  11. Characteristics of Droplet Size Distributions in Low-Level Stratiform Clouds Observed from Tokyo Skytree, JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN, 96(4), 405-413, 2018
  12. Long-term cloud condensation nuclei number concentration, particle number size distribution and chemical composition measurements at regionally representative observatories, ATMOSPHERIC CHEMISTRY AND PHYSICS, 18(4), 2853-2881, 20180228
  13. Collocated observations of cloud condensation nuclei, particle size distributions, and chemical composition, SCIENTIFIC DATA, 4, 170003, 2017
  14. Simultaneous measurement of CCN activity and chemical composition of fine-mode aerosols at Noto Peninsula, Japan, in autumn 2012, Aerosol and Air Quality Research, 16, 2107-2118, 2016
  15. Characterization of chromophoric water-soluble organic matter in urban, forest and marine aerosols by HR-ToF-AMS analysis and excitation emission matrix spectroscopy, Environmental Science & Technology, 50, 10351-10360, 2016
  16. Property of Black Carbon Particles Measured by a Laser-Induced Incandescence Technique in the spring at Noto Peninsula, Japan, Earozoru Kenkyu, 31(3), 194-202, 2016
  17. Fungal spores overwhelm biogenic organic aerosols in a mid-latitudinal forest, Atmospheric Chemistry and Physics, 16, 7497-7506, 2016
  18. Light absorption and morphological properties of soot-containing aerosols observed at an East Asian outflow site, Noto Peninsula, Japan, Atmospheric Chemistry and Physics, 16, 2525-2541, 2016
  19. High Concentrations of Sulfur Dioxide and Sulfate Particles Observed in Suzu City, the Noto Peninsula in Late July 2012 : On the Influence of the Smoke of Sakurajima, TENKI, 62, 201-208, 2015
  20. Spatial variation of biogenic and crustal elements in suspended particulate matter from surface waters of the North Pacific and its marginal seas, Progress in Oceanography, 126, 211-223, 2014
  21. Formation and evolution of biogenic secondary organic aerosol over a forest site in Japan, Journal of Geophysical Research, 119, 259-273, 2014
  22. Observation of new particle formation over a mid-latitude forest facing the North Pacific, Atmospheric Environment, 64, 77-84, 2013
  23. Spatial variation of particulate biogenic and crustal elements in surface waters of subarctic North pacific and its marginal seas during summer, KAIYO MONTHLY, 44(7), 422-427, 2012
  24. Biogeochemical implications of increased mineral particle concentrations in surface waters of the northwestern North Pacific during an Asian dust event, Geophysical Research Letters, 38, L01604, 2011
  25. Distributions of short-lived iodocarbons and biogenic trace gases in the open ocean and atmosphere in the western North Pacific, Marine Chemistry, 118, 156-170, 2010
  26. Single particle analysis of suspended particles during SEEDS II iron fertilization experiment, Marine Chemistry, 113, 212-218, 2009
  27. Evidence for the grazing hypothesis: grazing reduces phytoplankton in the western subarctic Pacific (SEEDS II), Journal of Oceanography, 63, 983-994, 2007
  28. Chemical composition and size distribution of sea fog over the northern North Pacific, Chikyu Kagaku, 41, 165-172, 2007

Publications such as books

  1. 2014/03/12, Western Pacific Air-Sea Interaction Study, New Particle Formation of Marine Aerosols, TERRAPUB, 2014, English, K. Miura, H. Furutani, Y. Iwamoto, K. Nagano, H. Kobayashi, M. Mochida, H. Mukai, S. Hashimoto, M. Takami and M. Uematsu, 284, 37-41
  2. 2010/11/05, A guide to oceanologic and nautical professionals, Tokai University Press, 2010, 11, 日本語, 978-4-486-01881-0, 173, 52-60

Invited Lecture, Oral Presentation, Poster Presentation

  1. Atmospheric Nitrogen Deposition to the Eastern Indian Ocean during Boreal Autumn, Iwamoto, Y., Kawamoto, K, Taketani, F., Kanaya, Y., Sekiya, T., Aita, M. N. and Yamaji, K., Ocean Science Meeting 2020, 2020/02/20, Without Invitation, AGU, OSLO, TOS, San Diego, US
  2. Atmospheric deposition flux of inorganic nitrogen into the Eastern Indian Ocean during boreal autumn, Iwamoto, Y., Kawamoto, K., Taketani, F., Kanaya, Y. Aita, M. N., Sekiya, T. and Yamaji, K., 2019/09/17, Without Invitation
  3. Mineral particles suspending in the surface waters of the North Pacific and its marginal seas – atmospheric dust deposition as investigated from seawater analysis, Yoko Iwamoto, Mitsuo Uematsu, JpGU2019, 2019/05/30, Without Invitation, JpGU, Chiba, JAPAN
  4. Biogeochemical cycle between atmosphere and ocean via particulate matters -Award lecture for JpSAC Young Scientist Award-, Yoko Iwamoto, JpGu2019, 2019/05/30, With Invitation, JpGU, Chiba, JAPAN
  5. CCN ACTIVITIES OF MARINE AEROSOLS OVER THE NORTH PACIFIC AND ITS MARGINAL SEAS DURING SUMMER, Yoko Iwamoto, Yusuke Miki, Momoka Yoshizue, Kazuhiko Miura, Hiroshi Furutani, Mitsuo Uematsu, SOLAS Open Science Conference 2019, 2019/04/22, Without Invitation, SOLAS International Program Office, Sapporo, JAPAN
  6. Factors determining the longitudinal distribution of biogenic sulfur compounds in aerosols over the subarctic North Pacific, Akiho Suizu, Ippei Nagao, Mitsuo Uematsu, Akiho Suizu, Ippei Nagao, Mitsuo Uematsu, 2018 Joint 14th iCACGP Quadrennial Symposium and 15th IGAC Science Conference, 2018/09/28, Without Invitation, iCACGP, IGAC, Takamatsu, Kagawa, Japan
  7. Observation of aerosol and cloud-droplet properties at the summit of Mt. Fuji (altitude 3776 m), Iwamoto, Y., Watanabe, A., Kataoka, R., Miura, K. and Uematsu, M., Frontiers of Atmospheric Aerosol Studies: Toward the Understanding of the Health and Climate Effects, 2018/01/23, Without Invitation, Nagoya University, Nagoya, Japan
  8. Properties of cloud condensation nuclei at the summit of Mt. Fuji, and their relationship to fog droplets, Watanabe, A., Iwamoto, Y., Kataoka, R., Miura, K., Uematsu, M., Kobayashi, H., 2017 Symposium on Atmospheric Chemistry and Physics at Mountain Sites, 2017/11/09, Without Invitation, NPO Mount Fuji Research Station, Gotemba, Shizuoka, Japan

Awards

  1. 2018/09/27, JpSAC Young Scientist Award, The Japan Society of Atmospheric Chemistry, Biogeochemical cycle between atmosphere and ocean via particulate matters
  2. 2014/04, Award of the Sasakawa Scientific Research Grant, The Japan Science Society, 「波の花」に含まれる有機物を測る-海洋性有機物の大気エアロゾルへの寄与
  3. 2010/08, Koichi Iinoya Award;, Japan Association of Aerosol Science and Technology, 飛沫から生成する海洋起源エアロゾルの雲凝結核特性

External Funds

Acceptance Results of Competitive Funds

  1. 2019, 2019
  2. KAKENHI, 2019, 2021
  3. 2018, 2018
  4. 2017, 2017
  5. 2017, 2017

Social Activities

History as Committee Members

  1. Visiting Researcher, 2017/03, 2020/03, Tokyo University of Science
  2. Board member, 2016/09, 2020/08, Japan Association of Aerosol Science and Technology
  3. Editorial board, 2016/09, 2020/08, Japan Association of Aerosol Science and Technology

History as Peer Reviews of Academic Papers

  1. 2018, Earozoru Kenkyu
  2. 2017, Earozoru Kenkyu, 1