Oral

Symbol A (Atmospheric, Ocean, and Environmental Sciences) » A-AS Atmospheric Sciences, Meteorology & Atmospheric Environment

[A-AS22_1AM2] Atmospheric Chemistry

Thu. May 1, 2014 11:00 AM - 12:45 PM 511 (5F)

Convener:*Nobuyuki Takegawa(Research Center for Advanced Science and Technology, University of Tokyo), Yousuke Sawa(Geochemical Research Department, Meteorological Research Institute), Yugo Kanaya(Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology), Kenshi Takahashi(Research Institute for Sustainable Humanosphere, Kyoto University), Hiroshi Tanimoto(National Institute for Environmental Studies), Chair:Kazuhiro Tsuboi(Oceanography and Geochemistry Research Department,Meteorological Research Institute)

This session provides a forum for the presentation of the broad spectrum of tropospheric and stratospheric chemistry, including various research topics (air quality and climate), approaches (modeling, field measurements, satellite data analysis, and laboratory studies), and species (gas and aerosol). This session also provides an opportunity for discussing possible future collaboration with other research fields relevant to atmospheric chemistry.

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11:00 AM - 11:15 AM

[AAS22-15] Origin of atmospheric gaseous mercury using the Hg/CO ratio in pollution plume observed at Mt. Fuji Weather Station

*Osamu NAGAFUCHI¹, Kuriko YOKOTA², Syungo KATO³, Ken'ichi OSAKA¹, Koyomi NAKAZAWA¹, Masaru KOGA¹, Naoko HISHIDA¹, Yuki NISHIDA¹ (1.the University of Shiga Prefecture, 2.Toyohashi university of technology, 3.Tokyo Metropolitan University)

11:15 AM - 11:30 AM

[AAS22-16] Clarification of lead (Pb) species and its formation mechanisms in coarse and fine aerosol particles using X-ray absorpt

*Kohei SAKATA¹, Aya SAKAGUCHI¹, Masaharu TANIMIZU², Yoshio TAKAHASHI¹ (1.Graduate school of Science, Hiroshima University, 2.JAMSTEC)

11:30 AM - 11:45 AM

[AAS22-17] Methyl chloride in the upper troposphere observed by CARIBIC: large-scale distributions and Asian summer monsoon outflow

*Taku UMEZAWA¹, Angela K. BAKER¹, David ORAM², Carina SAUVAGE¹, Debbie O'SULLIVAN², Armin RAUTHE-SCHOECH¹, Stephen A. MONTZKA³, Andreas ZAHN⁴, Carl A.M. BRENNINKMEIJER¹ (1.Max Planck Institute for Chemistry, 2.National Centre for Atmospheric Science, School of Environmental Sciences, University of East Anglia, 3.Earth System Research Laboratory, NOAA, 4.Institute for Meteorology and Climate Research, Karlsruhe Institute of Technology)

11:45 AM - 12:00 PM

[AAS22-18] Flattening of the equatorial bulge of annual mean APO observed in the Western Pacific during the 09/10 El Nino event

*Yasunori TOHJIMA¹, Hitoshi MUKAI¹, Toshinobu MACHIDA¹, Yukio TERAO¹, Yukihiro NOJIRI¹ (1.National Institute for Environmental Studies)

12:00 PM - 12:15 PM

[AAS22-19] Separation of gross primary production and ecosystem respiration of a Japanese forest using atmospheric O2/N2 ratio

*Shigeyuki ISHIDOYA¹, Shohei MURAYAMA¹, Hiroaki KONDO¹, Nobuko SAIGUSA², Ayaka KISHIMOTO³, Susumu YAMAMOTO¹ (1.National Institute of Advanced Industrial Science and Technology (AIST), 2.National Institute for Environmental Studies, 3.National Institute for Agro-Environmental Sciences (NIAES))

12:15 PM - 12:30 PM

[AAS22-20] Seasonal changes of greenhouse gases in the upper troposphere/lower stratosphere observed by commercial airliner

*Yousuke SAWA¹, Toshinobu MACHIDA², Hidekazu MATSUEDA¹, Yosuke NIWA¹, Kazuhiro TSUBOI¹, Shohei MURAYAMA³, Shinji MORIMOTO⁴, Shuji AOKI⁴ (1.Meteorological Research Institute, 2.National Institute for Enviromental Studies, 3.National Institute of Advanced Industrial Science and Technology, 4.Tohoku University)

12:30 PM - 12:45 PM

[AAS22-21] Long-term changes of CH4 concentration and its carbon isotopic ratio in the lower stratosphere over Japan

*Satoshi SUGAWARA¹, Shinji MORIMOTO², Taku UMEZAWA³, Shuji AOKI², Takakiyo NAKAZAWA², Shigeyuki ISHIDOYA⁴, Sakae TOYODA⁵, Hideyuki HONDA⁶ (1.Miyagi Univ. of Education, 2.CAOS, Tohoku Univ., 3.Max Planck Institute for Chemistry, 4.AIST, 5.Tokyo Institute of Technology, 6.ISAS/JAXA)