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  1. D300 大学院環境学研究科
  2. D300a 雑誌掲載論文
  3. 学術雑誌

Seasonal variation of free tropospheric aerosol particles at Mt. Tateyama, central Japan

http://hdl.handle.net/2237/23083
http://hdl.handle.net/2237/23083
ba9e3271-bf6b-4ed3-ae73-5c7f5b50f7cb
名前 / ファイル ライセンス アクション
Osada_et_al-2003-Journal_of_Geophysical_Research__Atmospheres_1984-2012.pdf Osada_et_al-2003-Journal_of_Geophysical_Research__Atmospheres_1984-2012.pdf (3.5 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2015-11-04
タイトル
タイトル Seasonal variation of free tropospheric aerosol particles at Mt. Tateyama, central Japan
言語 en
著者 Osada, K.

× Osada, K.

WEKO 60746

en Osada, K.

Search repository
Kido, M.

× Kido, M.

WEKO 60747

en Kido, M.

Search repository
Iida, H.

× Iida, H.

WEKO 60748

en Iida, H.

Search repository
Matsunaga, K.

× Matsunaga, K.

WEKO 60749

en Matsunaga, K.

Search repository
Iwasaka, Y.

× Iwasaka, Y.

WEKO 60750

en Iwasaka, Y.

Search repository
Nagatani, M.

× Nagatani, M.

WEKO 60751

en Nagatani, M.

Search repository
Nakada, H.

× Nakada, H.

WEKO 60752

en Nakada, H.

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 ©2003. American Geophysical Union.
キーワード
主題Scheme Other
主題 Asian dust
キーワード
主題Scheme Other
主題 free troposphere
キーワード
主題Scheme Other
主題 seasonal variation
抄録
内容記述 [1] Number-size distribution of atmospheric aerosol particles and O3 concentration were measured at Murododaira (36.6N, 137.6E, 2450 m above sea level (asl)) on the western flank of Mt. Tateyama in central Japan from January 1999 to November 2002. This study used nighttime data from 2400 to 0500 hours (local time) on the basis of analysis of their diurnal variation to characterize free tropospheric aerosols and O3 over Japan. The O3 concentration shows small variability (standard deviation of 4 ppbv) with the mean value of 40 ppbv in winter (October to February), large variability (8 ppbv) with the higher mean value of 51 ppbv in spring (March to May), and large variability (14 ppbv) with the lower mean value of 32 ppbv in summer (June to September). Highest monthly mean volume concentration (2.7 μm3/cm3) of accumulation particles (0.3 μm < D < 1.0 μm) was observed in June, while the mean value in winter (October to February) was 0.7 μm3/cm3. On the basis statistics of backward air trajectory analyses, a stagnant airflow in summer over the coastal areas of the Yellow Sea and near Japan is inferred to be a suitable meteorological condition to form enhanced volume concentration of accumulation particles during transport. Associating with the seasonal changes in the dominant air trajectories, SO2 emission from Miyakejima volcano since August 2000 is also an important source of the summer enhancement of accumulation particles. Highest monthly mean volume concentration (11.2 μm3/cm3) of coarse particles (D > 1.0 μm) was found in April, which was about 10 times higher than the mean value of 1.2 μm3/cm3 from summer to winter. Variability of daily nighttime volume concentrations of the coarse particles was high (standard deviation of 13.6 μm3/cm3) in spring and low (about 2 μm3/cm3) in the rest of the year. High volume concentration with large variability of the coarse particles in spring is caused by frequent arrival of Kosa (yellow dust) particles from the Asian continent. Rapid enhancement of coarse volume concentration was often observed to increase as much as 30 times within 3 hours during Kosa phenomena. The year 2001 had particularly strong Kosa activity with a prolonged season starting early January and ending early July.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 Wiley
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1029/2003JD003544
ISSN
収録物識別子タイプ PISSN
収録物識別子 2169-897X
書誌情報 en : Journal of Geophysical Research: Atmospheres

巻 108, 号 D23, p. 8667-8667, 発行日 2003-12
著者版フラグ
値 publisher
URI
識別子 http://dx.doi.org/10.1029/2003JD003544
識別子タイプ DOI
URI
識別子 http://hdl.handle.net/2237/23083
識別子タイプ HDL
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