[M-IS06] Dust

convener:Ishizuka Masahide(Kagawa University), Yasunori Kurosaki(Arid Land Research Center, Tottori University), Thomas Sekiyama(Meteorological Research Institute), Kana Nagashima(Japan Agency for Marine-Earth Science and Technology, Research and Development Center for Global Change)

Mineral dust is generated from the ground surface by strong winds, and it transports long distance over the earth. In the process, cloud formation and absorption and scattering of solar radiation cause weather and climate changes. Also, when deposited in the ocean, feeding nutrients to phytoplankton, promoting photosynthesis, and when deposited on snow and ice causes albedo change. This is known as the yellow dust (Asian dust) phenomenon in Asia region including Japan. In order to understand this, integration in a wide range of academic areas is necessary.
In the emission process, the amount of dust changes greatly depending on the surface conditions in dryland area, and in order to know the effect, it is necessary to deal with broad areas such as soil, topography, vegetation, precipitation, desertification and soil deterioration. In the transport process, we deal with areas such as weather, atmospheric aerosol, radiation. In the deposition process, we deal with areas such as ocean, snow ice, health to people and livestock. Drying and changes in vegetation also have social scientific aspects such as national policies, management of livestock, and population increase. In addition, dust and sand dunes are common phenomena not only in the Earth but also in other planets such as Mars and Saturn. In this way, it is impossible to understand the dust phenomenon only from one field, it is important for researchers in many areas to discuss and share information through this session, and advance exchange of researchers.

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Introduction (9:00 AM - 9:10 AM)

[MIS06-01] Assessing health risks of exposure to Asian dust among healthy individuals

★Invited Papers

*Kazunari Onishi¹, Masanori Nojima², Tsuyoshi Thomas Sekiyama³, Masato Shinoda⁴, Youichi Kurozawa⁵, Yasunori Kurosaki⁶ (1.Graduate School of Public Health, Support Unit for Conducting Clinically Essential Studies, St.Lukes International University, 2.Center for Translational Research, The Institute of Medical Science Hospital, The University of Tokyo, 3.Meteorological Research Institute, 4.Graduate School of Environmental Studies, Nagoya University, 5.Division of Health Administration and Promotion, Department of Social Medicine, Faculty of Medicine, Tottori University, 6.Arid Land Research Center, Tottori University)

[MIS06-02] Implications of overestimates in mineral dust emissions from Australia on labile iron concentrations in aerosols

*Akinori Ito¹, Morgane M. G. Perron², Bernadette C. Proemse², Michal Strzelec², Melanie Gault-Ringold², Philip W. Boyd², Andrew R. Bowie² (1.Japan Agency for Marine-Earth Science and Technology, 2.University of Tasmania)

[MIS06-03] Low dust generation from active sand dunes

*Itzhak Katra¹, Nitzan Swet¹, Jasper Kok², Raleigh Martin², Yue Huang², Hezi Yizhaq¹ (1.Ben-Gurion University, 2.University of California, Los Angeles)

[MIS06-04] What are the main land-surface processes affecting saltation activities in a dust hotspot of the Mongolian desert steppe?

*Kaman Kong¹, Banzragch Nandintsetseg^1,2, Masato Shinoda¹, Masahide Ishizuka³, Yasunori Kurosaki⁴ (1.Graduate School of Environmental Studies, Nagoya University, 2.School of Arts and Sciences, National University of Mongolia, 3.Faculty of Engineering and Design, Kagawa University, 4.Arid Land Research Center, Tottori University)

[MIS06-05] Effects of various vegetation factors on sand saltation from the viewpoint of roughness

*Akito Kono¹, Toshiya Okuro¹ (1.Graduate School of Agricultural and Life Sciences, The University of Tokyo)