Analysis of the hygroscopicity of European boreal forest aerosol toward a better understanding of the interactions among vegetation, aerosol, and climate

• Project/Area Number: 19KK0265
• Research Category: Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 63:Environmental analyses and evaluation and related fields
• Research Institution: Nagoya University
• Principal Investigator: Mochida Michihiro 名古屋大学, 宇宙地球環境研究所, 教授 (10333642)
• Co-Investigator(Kenkyū-buntansha): 大畑 祥 名古屋大学, 高等研究院(宇宙), 助教 (70796250) ; 松井 仁志 名古屋大学, 環境学研究科, 准教授 (50549508)
• Project Period (FY): 2019-10-07 – 2024-03-31
• Project Status: Completed (Fiscal Year 2023)
• Budget Amount: ¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000); Fiscal Year 2022: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2021: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000); Fiscal Year 2020: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2019: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
• Keywords: 有機エアロゾル / 北方林 / 吸湿性 / 表面張力 / サンプリング / 森林 / 気候

Outline of Research at the Start

陸域植生から大気に放出される揮発性有機化合物の一部は、光化学反応により生物起源有機エアロゾル（BSOA）となり、雲凝結核としての働きなどにより放射収支に関与し、気候ひいては陸域植生に影響を及ぼすというフィードバック機構を形作ると指摘されている。しかし、エアロゾルの放射影響に関わる有機エアロゾルの吸湿性の推定値には大きな幅があり、BSOAの吸湿性や、その雲粒生成への寄与には大きな不確かさがある。そこで本研究では、北方森林圏を対象としてBSOAの吸湿性とその全エアロゾルの吸湿性に対する寄与を定量する。そして、北方林におけるBSOAの放射への寄与を評価し、上記のフィードバック機構について考察する。

Outline of Final Research Achievements

Based on the offline analysis of an aerosol mass spectrometer for the extracts of aerosol samples collected in Hyytiala Forest Station, Finland in respective seasons, the atmospheric concentrations and chemical structural characteristics of organic fractions were obtained. Further, based on the hygroscopic growth measurement of the water extracts from the samples, their hygroscopicity parameter were obtained and the strong influence of the relative abundances of organics and sulfate to the hygroscopicity was confirmed. Aerosol samples collected in other sites were also studied; for the water-soluble component of urban aerosols the relationship of the concentrations of ammonium sulfate and water-soluble organics with the surface tension was obtained. Characterization of atmospheric aerosol over a forest in Hokkaido was performed in collaboration with other projects.

Academic Significance and Societal Importance of the Research Achievements

本研究で得られた知見や今後の更なる解析で期待される知見は、北方林において植生から大気に放出されるガスから生成するエアロゾル（微粒子）が気候に影響を及ぼし、また逆に気候が植生に影響を及ぼすフィードバックの仕組みを理解する上で基礎となる知識を与えるものである。

Research Products

• [Int'l Joint Research] ヘルシンキ大学(フィンランド)
• [Int'l Joint Research] コーネル大学/アメリカ海洋大気庁（NOAA）(米国)
• [Int'l Joint Research] ヘルシンキ大学(フィンランド)
• [Journal Article] Observationally constrained analysis of sulfur cycle in the marine atmosphere with NASA ATom measurements and AeroCom model simulations (2024)
  • Author(s): Bian, H., Chin, M., Colarco, P. R., Apel, E. C., Blake, D. R., Froyd, K., Hornbrook, R. S., Jimenez, J., Jost, P. C., Lawler, M., Liu, M., Lund, M. T., Matsui, H., Nault, B. A., Penner, J. E., Rollins, A. W., Schill, G., Skeie, R. B., Wang, H., Xu, L., Zhang, K., Zhu, J.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 24 Issue: 3 Pages: 1717-1741
  • DOI: 10.5194/acp-24-1717-2024
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Spatial and Longitudinal Distributions of Total Carbon, Nitrogen and Sulfur Together With Water‐Soluble Major Ions in Marine Aerosols Collected From the Western Pacific and Southern Ocean (2023)
  • Author(s): Kunwar Bhagawati、Pokhrel Ambarish、Niwai Takeji、Kawamura Kimitaka
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 128 Pages: 119710-119710
  • DOI: 10.1016/j.atmosenv.2023.119710
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Evaluation of a method to quantify the number concentrations of submicron water-insoluble aerosol particles based on filter sampling and complex forward-scattering amplitude measurements (2023)
  • Author(s): Ohata Sho、Moteki Nobuhiro、Kawanago Hikaru、Tobo Yutaka、Adachi Kouji、Mochida Michihiro
  • Journal Title: Aerosol Science and Technology Volume: 57 Issue: 10 Pages: 1013-1030
  • DOI: 10.1080/02786826.2023.2223387
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Dominant Role of Arctic Dust With High Ice Nucleating Ability in the Arctic Lower Troposphere (2023)
  • Author(s): Kawai Kei、Matsui Hitoshi、Tobo Yutaka
  • Journal Title: Geophysical Research Letters Volume: 50 Issue: 8 Pages: 1-10
  • DOI: 10.1029/2022gl102470
  • Peer Reviewed / Open Access
• [Journal Article] The emissions model intercomparison project (Emissions-MIP): quantifying model sensitivity to emission characteristics (2023)
  • Author(s): Ahsan, H., Wang, H., Wu, J., Wu, M., Smith, S. J., Bauer, S., Suchyta, H., Olivie, D., Myhre, G., Matsui, H., Bian, H., Lamarque, J.-F., Carslaw, K., Horowitz, L., Regayre, L., Chin, M., Schulz, M., Skeie, R. B., Takemura, T., Naik, V.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 23 Issue: 23 Pages: 14779-14799
  • DOI: 10.5194/acp-23-14779-2023
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Morphological features and water solubility of iron in aged fine aerosol particles over the Indian Ocean (2023)
  • Author(s): Ueda, S., Iwamoto, Y., Taketani, F., Liu, M., Matsui, H.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 23 Issue: 17 Pages: 10117-10135
  • DOI: 10.5194/acp-23-10117-2023
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] エアロゾル-放射・雲相互作用 (2023)
  • Author(s): 松井仁志、大畑祥、當房豊、松木篤、板橋秀一、大島長、鈴木健太郎、佐藤陽祐
  • Journal Title: 大気化学研究 Volume: 48
  • Peer Reviewed / Open Access
• [Journal Article] Abundance, chemical structure, and light absorption properties of humic-like substances (HULIS) and other organic fractions of forest aerosols in Hokkaido (2022)
  • Author(s): Afsana Sonia、Zhou Ruichen、Miyazaki Yuzo、Tachibana Eri、Deshmukh Dhananjay Kumar、Kawamura Kimitaka、Mochida Michihiro
  • Journal Title: Scientific Reports Volume: 12 Issue: 1 Pages: 14379-14379
  • DOI: 10.1038/s41598-022-18201-z
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The underappreciated role of anthropogenic sources in atmospheric soluble iron flux to the Southern Ocean (2022)
  • Author(s): Liu Mingxu、Matsui Hitoshi、Hamilton Douglas S.、Lamb Kara D.、Rathod Sagar D.、Schwarz Joshua P.、Mahowald Natalie M.
  • Journal Title: npj Climate and Atmospheric Science Volume: 5 Issue: 1 Pages: 28-28
  • DOI: 10.1038/s41612-022-00250-w
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Contrasting source contributions of Arctic black carbon to atmospheric concentrations, deposition flux, and atmospheric and snow radiative effects (2022)
  • Author(s): Matsui Hitoshi、Mori Tatsuhiro、Ohata Sho、Moteki Nobuhiro、Oshima Naga、Goto-Azuma Kumiko、Koike Makoto、Kondo Yutaka
  • Journal Title: Atmospheric Chemistry and Physics Volume: 22 Issue: 13 Pages: 8989-9009
  • DOI: 10.5194/acp-22-8989-2022
  • Peer Reviewed / Open Access
• [Journal Article] Atmospheric Radiative and Oceanic Biological Productivity Responses to Increasing Anthropogenic Combustion‐Iron Emission in the 1850-2010 Period (2022)
  • Author(s): Rathod S. D.、Hamilton D. S.、Li L.、Mahowald N. M.、Matsui H.、Pierce J. R.、Bond T. C.
  • Journal Title: Geophysical Research Letters Volume: 49 Issue: 16
  • DOI: 10.1029/2022gl099323
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Substantial Uncertainties in Arctic Aerosol Simulations by Microphysical Processes Within the Global Climate‐Aerosol Model CAM‐ATRAS (2022)
  • Author(s): Matsui Hitoshi、Liu Mingxu
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 127 Issue: 17
  • DOI: 10.1029/2022jd036943
  • Peer Reviewed / Open Access
• [Journal Article] Satellite-based evaluation of AeroCom model bias in biomass burning regions (2022)
  • Author(s): Zhong Qirui、Schutgens Nick、van der Werf Guido、van Noije Twan、Tsigaridis Kostas、Bauer Susanne E.、Mielonen Tero、Kirkevag Alf、Seland Oyvind、Kokkola Harri、Checa-Garcia Ramiro、Neubauer David、Kipling Zak、Matsui Hitoshi、et al.
  • Journal Title: Atmospheric Chemistry and Physics Volume: 22 Issue: 17 Pages: 11009-11032
  • DOI: 10.5194/acp-22-11009-2022
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Secondary Organic Aerosol Formation Regulates Cloud Condensation Nuclei in the Global Remote Troposphere (2022)
  • Author(s): Liu Mingxu、Matsui Hitoshi
  • Journal Title: Geophysical Research Letters Volume: 49 Issue: 18
  • DOI: 10.1029/2022gl100543
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Using modelled relationships and satellite observations to attribute modelled aerosol biases over biomass burning regions (2022)
  • Author(s): Zhong, Q., Schutgens, N., van der Werf, G., van Noije, T., Bauer, S. E., Tsigaridis, K., Mielonen, T., Checa-Garcia, R., Neubauer, D., Kipling, Z., Kirkevag, A., Olivie;, D. J. L., Kokkola, H., Matsui, H., Ginoux, P., Takemura, T., Le Sager, P., Remy, S., Bian, H., Chin, M.
  • Journal Title: Nature Communications Volume: 13 Issue: 1 Pages: 5914-5914
  • DOI: 10.1038/s41467-022-33680-4
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Marked rebound of agricultural fire emissions in Asia after the outbreak of COVID-19 (2022)
  • Author(s): Liu Mingxu、Yao Huan、Matsui Hitoshi
  • Journal Title: Environmental Research Letters Volume: 17 Issue: 11 Pages: 114059-114059
  • DOI: 10.1088/1748-9326/ac9e69
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] 陸域生態系と大気化学 (2022)
  • Author(s): 持田陸宏、伊藤昭彦、松田和秀、谷晃
  • Journal Title: 大気化学研究 Volume: 47
  • Open Access
• [Journal Article] Formation and Growth of Atmospheric Aerosol Particles and Their Contribution as Cloud Condensation Nuclei over a Forest in the Kii Peninsula (2021)
  • Author(s): 持田 陸宏
  • Journal Title: Earozoru Kenkyu Volume: 36 Issue: 1 Pages: 25-31
  • DOI: 10.11203/jar.36.25
  • NAID: 130008002856
  • ISSN: 0912-2834, 1881-543X
  • Year and Date: 2021-03-20
  • Peer Reviewed
• [Journal Article] Radiative forcings induced by the substantial changes in anthropogenic emissions over China during 2008-2016 (2021)
  • Author(s): Liu, M. and H. Matsui
  • Journal Title: Atmospheric Chemistry and Physics Volume: 21 Issue: 8 Pages: 5965-5982
  • DOI: 10.5194/acp-21-5965-2021
  • Peer Reviewed / Open Access
• [Journal Article] Importance of Supersaturation in Arctic Black Carbon Simulations (2021)
  • Author(s): Matsui Hitoshi、Liu Mingxu
  • Journal Title: Journal of Climate Volume: 34 Issue: 19 Pages: 7843-7856
  • DOI: 10.1175/jcli-d-20-0994.1
  • Peer Reviewed / Open Access
• [Journal Article] High Potential of Asian Dust to Act as Ice Nucleating Particles in Mixed‐Phase Clouds Simulated With a Global Aerosol‐Climate Model (2021)
  • Author(s): Kawai Kei、Matsui Hitoshi、Tobo Yutaka
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 126 Issue: 12 Pages: 1-16
  • DOI: 10.1029/2020jd034263
  • Peer Reviewed / Open Access
• [Journal Article] Understanding Top‐of‐Atmosphere Flux Bias in the AeroCom Phase III Models: A Clear‐Sky Perspective (2021)
  • Author(s): Su Wenying、Liang Lusheng、Myhre Gunnar、Thorsen Tyler J.、Loeb Norman G.、Schuster Gregory L.、Ginoux Paul、Paulot Fabien、Neubauer David、Checa‐Garcia Ramiro、Matsui Hitoshi、Tsigaridis Kostas、Skeie Ragnhild B.、Takemura Toshihiko、Bauer Susanne E.、Schulz Michael
  • Journal Title: Journal of Advances in Modeling Earth Systems Volume: 13 Issue: 9
  • DOI: 10.1029/2021ms002584
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] High Sensitivity of Asian Dust Emission, Transport, and Climate Impacts to Threshold Friction Velocity (2021)
  • Author(s): Kawai Kei、Matsui Hitoshi、Kimura Reiji、Shinoda Masato
  • Journal Title: SOLA Volume: 17 Issue: 0 Pages: 239-245
  • DOI: 10.2151/sola.2021-042
  • NAID: 130008131075
  • ISSN: 1349-6476
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Global-scale constraints on light-absorbing anthropogenic iron oxide aerosols (2021)
  • Author(s): Lamb K. D.、Matsui H.、Katich J. M.、Perring A. E.、Spackman J. R.、Weinzierl B.、Dollner M.、Schwarz J. P.
  • Journal Title: npj Climate and Atmospheric Science Volume: 4 Issue: 1 Pages: 15-15
  • DOI: 10.1038/s41612-021-00171-0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Improved Simulations of Global Black Carbon Distributions by Modifying Wet Scavenging Processes in Convective and Mixed‐Phase Clouds (2021)
  • Author(s): Liu Mingxu、Matsui Hitoshi
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 126 Issue: 3
  • DOI: 10.1029/2020jd033890
  • Peer Reviewed / Open Access
• [Journal Article] Resolving aerosol mixing state increases accuracy of black carbon respiratory deposition estimates (2020)
  • Author(s): Ching Joseph、Kajino Mizuo、Matsui Hitoshi
  • Journal Title: One Earth Volume: 3 Issue: 6 Pages: 763-776
  • DOI: 10.1016/j.oneear.2020.11.004
  • Peer Reviewed / Open Access
• [Journal Article] Black Carbon Absorption Efficiency Under Preindustrial and Present‐Day Conditions Simulated by a Size‐ and Mixing‐State‐Resolved Global Aerosol Model (2020)
  • Author(s): Matsui Hitoshi
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 125 Issue: 18
  • DOI: 10.1029/2019jd032316
  • Peer Reviewed / Open Access
• [Journal Article] High Sensitivity of Arctic Black Carbon Radiative Effects to Subgrid Vertical Velocity in Aerosol Activation (2020)
  • Author(s): Matsui Hitoshi、Moteki Nobuhiro
  • Journal Title: Geophysical Research Letters Volume: 47 Issue: 16
  • DOI: 10.1029/2020gl088978
  • Peer Reviewed / Open Access
• [Presentation] Quantifying the role of microphysical properties and processes on the global distribution and radiative effects of black carbon (2023)
  • Author(s): Matsui, H.
  • Organizer: AGU Annual Meeting 2023
  • Int'l Joint Research / Invited
• [Presentation] エアロゾルとその放射・雲影響の全球シミュレーション (2023)
  • Author(s): 松井 仁志
  • Organizer: エアロゾル・雲・降水に関する研究集会
• [Presentation] Light absorption of forest organic aerosol fractions with different polarity (2022)
  • Author(s): Afsana, S., Zhou, R., Miyazaki, Y., Tachibana, E., Deshmukh, D. K., Kawamura, K., Mochida, M.
  • Organizer: EGU General Assembly 2022
  • Int'l Joint Research
• [Presentation] アジアダストの発生・輸送・気候影響に対する臨界摩擦速度の重要性 (2022)
  • Author(s): 河合 慶, 松井 仁志, 木村 玲二, 篠田 雅人
  • Organizer: 日本気象学会2022年度春季大会
• [Presentation] 粒子の微物理特性を表現した全球エアロゾルモデルの開発と気候影響評価 (2022)
  • Author(s): 松井 仁志
  • Organizer: 日本気象学会2022年度春季大会
• [Presentation] Sulfur isotope ratio of sulfate aerosols in an Antarctic Dome Fuji ice core during the last glacial period: a potential contribution from the Atacama Desert (2022)
  • Author(s): Uemura, R., Masaka, K., Iizuka, Y., Hirabayashi, M., Matsui, H., Matsumoto, R., Uemura, M., Fujita, K., Motoyama, H.
  • Organizer: PAGES 6th OSM 2022
  • Int'l Joint Research
• [Presentation] 最終氷期における南極ドームふじ氷床コアの硫酸塩エアロゾルの硫黄同位体を用いた起源推定:アタカマ砂漠からの寄与の可能性 (2022)
  • Author(s): 植村 立, 眞坂 昂佑, 飯塚 芳徳, 平林 幹啓, 松井 仁志, 松本 理誠, 植村 美希, 藤田 耕史, 本山 秀明
  • Organizer: 日本地球惑星科学連合2022年大会
• [Presentation] High sensitivity of Asian dust emission, transport, deposition, and climate impacts to threshold friction velocity (2022)
  • Author(s): 河合 慶, 松井 仁志, 木村 玲二, 篠田 雅人
  • Organizer: 日本地球惑星科学連合2022年大会
• [Presentation] 大気化学の将来構想：エアロゾルの動態と放射・雲過程との相互作用 (2022)
  • Author(s): 松井 仁志, 大畑 祥, 當房 豊, 松木 篤, 板橋 秀一, 大島 長, 鈴木 健太郎, 佐藤 陽祐
  • Organizer: 日本地球惑星科学連合2022年大会
• [Presentation] The underappreciated role of anthropogenic sources in atmospheric soluble iron flux to the Southern Ocean (2022)
  • Author(s): Liu, M., Matsui, H.
  • Organizer: 日本地球惑星科学連合2022年大会
• [Presentation] Secondary organic aerosol formation regulates cloud condensation nuclei in the global remote troposphere (2022)
  • Author(s): Liu, H., Matsui, H.
  • Organizer: AGU fall meeting 2022
  • Int'l Joint Research
• [Presentation] Assessment of dust source attribution to the global land and ocean regions (2022)
  • Author(s): Kim, D., Chin, M., Schuster, G., Takemura, T., Tuccella, P., Ginoux, P., Liu, X., She, Y., Matsui, H., Tsigaridis, K.
  • Organizer: AGU fall meeting 2022
  • Int'l Joint Research
• [Presentation] A full-year record of ice nucleating particles and related aerosols over Svalbard during MOSAiC 2019/20 (2022)
  • Author(s): Tobo, Y., Adachi, K., Matsui, H., Kawai, K., Ohata, S., Kondo, Y., Inoue, J., Koike, M.
  • Organizer: 2nd MOSAiC Science Conference
  • Int'l Joint Research
• [Presentation] 混合相雲における氷晶核の全球数値シミュレーション：アジアダストの重要性 (2021)
  • Author(s): 河合慶、松井仁志、當房豊
  • Organizer: 日本気象学会2021年度春季大会
• [Presentation] 全球モデルを用いたアジアダストの混合相雲における氷晶核としての重要性の評価 (2021)
  • Author(s): 河合慶、松井仁志、當房豊
  • Organizer: Japan Geoscience Union Meeting 2021
• [Presentation] Improved simulations of global black carbon distributions by modifying wet scavenging processes in convective and mixed-phase clouds (2021)
  • Author(s): Liu, M. and Matsui, H.
  • Organizer: Japan Geoscience Union Meeting 2021
• [Presentation] アジアダストの氷晶核に関する全球数値シミュレーション (2021)
  • Author(s): 河合慶、松井仁志、當房豊
  • Organizer: 2021年度エアロゾル・雲・降水の相互作用に関する研究集会
• [Presentation] Assessment of the role of saltingout effect on the hygroscopicity of urban atmospheric aerosol (2020)
  • Author(s): Phuong Nguyet Phung, Michihiro Mochida, Sho Ohata, Yuzo Miyazaki, Eri Tachibana
  • Organizer: JPGU - AGU Joint Meeting 2020: Virtual
  • Int'l Joint Research