Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017

WANG, Litao; Zhou, Yi; LIU, Wenliang; WANG, Shixin; ZHU, Jinfeng; HOU, Yanfang

doi:10.1016/j.apr.2018.11.003

Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017

Yanfang HOU, (Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, China)

Litao WANG, (Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, China)

Yi ZHOU, (Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, China)

Shixin WANG, (Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, China)

Wenliang LIU, (Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, China)

Jinfeng ZHU (Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, China)

Atmospheric Pollution Research

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Yıl: 2019 Cilt: 10 Sayı: 2 Sayfa Aralığı: 651 - 655 Metin Dili: İngilizce DOI: 10.1016/j.apr.2018.11.003 İndeks Tarihi: 02-12-2020

Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017

Öz:

This study presents an analysis of the atmospheric column nitrogen dioxide ($NO_2$) over China during 2008–2017.Measurements of $NO_2$ columns obtained from the Ozone Monitoring Instrument (OMI) are used to investigatethe temporal and spatial dynamics of $NO_2$. Temporal and spatial distributions of $NO_2$obtained from OMI overChina from 2008 to 2017 are presented, and annual changes and trends in the seasonal cycle are shown. Theannual mean $NO_2$ columns are found to decrease 13% from 2008 to 2017. $NO_2$ shows significant cyclical seasonal characteristics over China, with maximum values in winter and minimum in summer. In addition, thespatial distribution is unbalanced, the Beijing-Tianjin-Hebei (Jing-Jin-Ji) region, the Yangtze River Delta regionand the Pearl River Delta region are found to be highly polluted areas, the NO2 columns in these regions havebeen declining by 17.6%, 24.5% and 16.7% during 2008–2017 respectively. Yearly variations in the $NO_2$ columns over the four major economic plates are prominent, and there is a maximum in the eastern region and aminimum in the western region during the past decade, these four regions show a downward trend in recentyears. Three areas and six groups are important pollution regions, and the $NO_2$ columns over these regions alsoshow decrease trend.

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APA	HOU Y, WANG L, Zhou Y, WANG S, LIU W, ZHU J (2019). Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017. , 651 - 655. 10.1016/j.apr.2018.11.003
Chicago	HOU Yanfang,WANG Litao,Zhou Yi,WANG Shixin,LIU Wenliang,ZHU Jinfeng Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017. (2019): 651 - 655. 10.1016/j.apr.2018.11.003
MLA	HOU Yanfang,WANG Litao,Zhou Yi,WANG Shixin,LIU Wenliang,ZHU Jinfeng Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017. , 2019, ss.651 - 655. 10.1016/j.apr.2018.11.003
AMA	HOU Y,WANG L,Zhou Y,WANG S,LIU W,ZHU J Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017. . 2019; 651 - 655. 10.1016/j.apr.2018.11.003
Vancouver	HOU Y,WANG L,Zhou Y,WANG S,LIU W,ZHU J Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017. . 2019; 651 - 655. 10.1016/j.apr.2018.11.003
IEEE	HOU Y,WANG L,Zhou Y,WANG S,LIU W,ZHU J "Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017." , ss.651 - 655, 2019. 10.1016/j.apr.2018.11.003
ISNAD	HOU, Yanfang vd. "Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017". (2019), 651-655. https://doi.org/10.1016/j.apr.2018.11.003

APA	HOU Y, WANG L, Zhou Y, WANG S, LIU W, ZHU J (2019). Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017. Atmospheric Pollution Research, 10(2), 651 - 655. 10.1016/j.apr.2018.11.003
Chicago	HOU Yanfang,WANG Litao,Zhou Yi,WANG Shixin,LIU Wenliang,ZHU Jinfeng Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017. Atmospheric Pollution Research 10, no.2 (2019): 651 - 655. 10.1016/j.apr.2018.11.003
MLA	HOU Yanfang,WANG Litao,Zhou Yi,WANG Shixin,LIU Wenliang,ZHU Jinfeng Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017. Atmospheric Pollution Research, vol.10, no.2, 2019, ss.651 - 655. 10.1016/j.apr.2018.11.003
AMA	HOU Y,WANG L,Zhou Y,WANG S,LIU W,ZHU J Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017. Atmospheric Pollution Research. 2019; 10(2): 651 - 655. 10.1016/j.apr.2018.11.003
Vancouver	HOU Y,WANG L,Zhou Y,WANG S,LIU W,ZHU J Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017. Atmospheric Pollution Research. 2019; 10(2): 651 - 655. 10.1016/j.apr.2018.11.003
IEEE	HOU Y,WANG L,Zhou Y,WANG S,LIU W,ZHU J "Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017." Atmospheric Pollution Research, 10, ss.651 - 655, 2019. 10.1016/j.apr.2018.11.003
ISNAD	HOU, Yanfang vd. "Analysis of the tropospheric column nitrogen dioxide over China based on satellite observations during 2008–2017". Atmospheric Pollution Research 10/2 (2019), 651-655. https://doi.org/10.1016/j.apr.2018.11.003