globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2014.04.010
Scopus记录号: 2-s2.0-84908344568
论文题名:
Concentration variations of total reactive nitrogen and total nitrate during transport to Fukue Island and to Cape Hedo, Japan in the marine boundary layer
作者: Yuba A; , Sadanaga Y; , Takami A; , Hatakeyama S; , Masui Y; , Ohara T; , Yonemura S; , Kato S; , Kajii Y; , Bandow H
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 97
起始页码: 471
结束页码: 478
语种: 英语
英文关键词: East Asia ; Lifetime ; Long-range transport ; Removal rate ; Total reactive nitrogen
Scopus关键词: East Asia ; Lifetime ; Long range transport ; Reactive nitrogen ; Removal rate ; nitrate ; nitrogen ; nitrogen oxide ; atmospheric chemistry ; atmospheric deposition ; atmospheric transport ; boundary layer ; concentration (composition) ; nitrate ; nitrogen ; spatial variation ; temporal period ; air ; Article ; boundary layer ; controlled study ; Japan ; Cape Hedo ; Far East ; Fukue Island ; Japan ; Kyushu ; Nagasaki [Kyushu] ; Okinawa Island ; Okinawa Islands ; Okinawa [Ryukyu Islands] ; Ryukyu Islands
Scopus学科分类: Environmental Science: Water Science and Technology ; Earth and Planetary Sciences: Earth-Surface Processes ; Environmental Science: Environmental Chemistry
英文摘要: We conducted continuous measurements of NOy and total nitrate (T.NO3=HNO3+NO3-(p)) at Fukue Island, Nagasaki, and Cape Hedo, Okinawa, Japan. We compared variations of NOy or T.NO3 concentrations measured at two remote sites when the air masses were originated from the same regions of the Asian Continent. Long-range transport events from the Asian Continent were extracted by CO concentration peaks at Fukue and Hedo and backward trajectory analyses. We compared the transport time difference at two sites from the Asian continent with the ratios of NOy at Hedo to that at Fukue (=R(NOy)) to find the predominant factor in NOy removal. R(NOy) were less than unity and decreased with the transport time difference. The ratios of NOy/CO at Hedo to those at Fukue (R(NOy/CO)) was assumed to be affected by the deposition process. R(NOy/CO) showed negative correlation with transport time difference as the same the case of R(NOy). This indicates that NOy was mainly removed by deposition rather than dilution. Air mass ages were classified by the ratio of T.NO3 to NOy at Fukue: T.NO3/NOy<0.2 was fresh air, 0.2-0.4 was middle-aged, and greater than 0.4 was aged. The ratios of T.NO3/NOy at Hedo to those at Fukue (R(T.NO3/NOy)) in the fresh air mass were greater than unity. In contrast, R(T.NO3/NOy) values in the aged air mass were unity and were less correlated with transport time difference. This indicates that T.NO3 generation proceeded in fresh air mass. On the other hand, T.NO3 generation rate was comparable to removal rate in the aged air mass. According to the relationship between R(NOy/CO) and transport time difference, the removal rate constant and NOy lifetime were (1.24±0.33)×10-5s-1 and 18-31h, respectively. © 2014 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80724
Appears in Collections:气候变化事实与影响

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作者单位: Graduate School of Engineering, Osaka Prefecture University 1-1 Gakuen-cho, Nakaku, Sakai, Osaka, Japan; National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, Japan; Institute of Symbiotic Science and Technology, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, Japan; National Institute for Agro-Environmental Sciences, 3-1-3 Kannondai, Tsukuba, Ibaraki, Japan; Faculty of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minamiosawa, Hachioji, Tokyo, Japan; Solar-Terrestrial Environment Laboratory, Nagoya University, Furo-cho, Chikusaku, Nagoya, Aichi, Japan; Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-nihonmatsu-cho, Sakyoku, Kyoto, Japan

Recommended Citation:
Yuba A,, Sadanaga Y,, Takami A,et al. Concentration variations of total reactive nitrogen and total nitrate during transport to Fukue Island and to Cape Hedo, Japan in the marine boundary layer[J]. Atmospheric Environment,2014-01-01,97
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