The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China

Haze and dust pollution have a significant impact on human production, life, and health. In order to understand the pollution process, the study of these two pollution characteristics is important. In this study, a one-year observation was carried out at the Beijing Southern Suburb Observatory using the MAX-DOAS instrument, and the pollution characteristics of the typical haze and dust events were analyzed. First, the distribution of aerosol extinction (AE) and H<sub<2</sub<O concentrations in the two typical pollution events were studied. The results showed that the correlation coefficient (<i<r</i<) between H<sub<2</sub<O and AE at different heights decreased during dust processes and the correlation slope (|k|) increased, whereas <i<r</i< increased and |k| decreased during haze periods. The correlation slope increased during the dust episode due to low moisture content and increased O<sub<4</sub< absorption caused by abundant suspended dry crustal particles, but decreased during the haze episode due to a significant increase of H<sub<2</sub<O absorption. Secondly, the gas vertical column density (VCD) indicated that aerosol optical depth (AOD) increased during dust pollution events in the afternoon, while the H<sub<2</sub<O VCD decreased; in haze pollution processes, both H<sub<2</sub<O VCD and AOD increased. There were significant differences in meteorological conditions during haze (wind speed (WD) was <2 m/s, and relative humidity (RH) was <60%) and dust pollution (WD was <4 m/s, and RH was <60%). Next, the vertical distribution characteristics of gases during the pollution periods were studied. The AE profile showed that haze pollution lasted for a long time and changed slowly, whereas the opposite was true for dust pollution. The pollutants (aerosols, NO<sub<2</sub<, SO<sub<2</sub<, and HCHO) and H<sub<2</sub<O were concentrated below 1 km during both these typical pollution processes, and haze pollution was associated with a strong temperature inversion around 1.0 km. Lastly, the water vapor transport fluxes showed that the water vapor transport from the eastern air mass had an auxiliary effect on haze pollution at the observation location. Our results are of significance for exploring the pollution process of tropospheric trace gases and the transport of water vapor in Beijing, and provide a basis for satellite and model verification. Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Hongmei Ren [verfasserIn] Ang Li [verfasserIn] Pinhua Xie [verfasserIn] Zhaokun Hu [verfasserIn] Jin Xu [verfasserIn] Yeyuan Huang [verfasserIn] Xiaomei Li [verfasserIn] Hongyan Zhong [verfasserIn] Hairong Zhang [verfasserIn] Xin Tian [verfasserIn] Bo Ren [verfasserIn] Shuai Wang [verfasserIn] Wenxuan Chai [verfasserIn] Chuanyao Du [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	MAX-DOAS haze pollution dust pollution

Übergeordnetes Werk:	In: Remote Sensing - MDPI AG, 2009, 13(2021), 24, p 5133
Übergeordnetes Werk:	volume:13 ; year:2021 ; number:24, p 5133

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/rs13245133

Katalog-ID:	DOAJ019245335

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520			\|a Haze and dust pollution have a significant impact on human production, life, and health. In order to understand the pollution process, the study of these two pollution characteristics is important. In this study, a one-year observation was carried out at the Beijing Southern Suburb Observatory using the MAX-DOAS instrument, and the pollution characteristics of the typical haze and dust events were analyzed. First, the distribution of aerosol extinction (AE) and H<sub<2</sub<O concentrations in the two typical pollution events were studied. The results showed that the correlation coefficient (<i<r</i<) between H<sub<2</sub<O and AE at different heights decreased during dust processes and the correlation slope (\|k\|) increased, whereas <i<r</i< increased and \|k\| decreased during haze periods. The correlation slope increased during the dust episode due to low moisture content and increased O<sub<4</sub< absorption caused by abundant suspended dry crustal particles, but decreased during the haze episode due to a significant increase of H<sub<2</sub<O absorption. Secondly, the gas vertical column density (VCD) indicated that aerosol optical depth (AOD) increased during dust pollution events in the afternoon, while the H<sub<2</sub<O VCD decreased; in haze pollution processes, both H<sub<2</sub<O VCD and AOD increased. There were significant differences in meteorological conditions during haze (wind speed (WD) was <2 m/s, and relative humidity (RH) was <60%) and dust pollution (WD was <4 m/s, and RH was <60%). Next, the vertical distribution characteristics of gases during the pollution periods were studied. The AE profile showed that haze pollution lasted for a long time and changed slowly, whereas the opposite was true for dust pollution. The pollutants (aerosols, NO<sub<2</sub<, SO<sub<2</sub<, and HCHO) and H<sub<2</sub<O were concentrated below 1 km during both these typical pollution processes, and haze pollution was associated with a strong temperature inversion around 1.0 km. Lastly, the water vapor transport fluxes showed that the water vapor transport from the eastern air mass had an auxiliary effect on haze pollution at the observation location. Our results are of significance for exploring the pollution process of tropospheric trace gases and the transport of water vapor in Beijing, and provide a basis for satellite and model verification.
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allfields	10.3390/rs13245133 doi (DE-627)DOAJ019245335 (DE-599)DOAJ9fcbc15631374f379db137d8a8c5f0f7 DE-627 ger DE-627 rakwb eng Hongmei Ren verfasserin aut The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Haze and dust pollution have a significant impact on human production, life, and health. In order to understand the pollution process, the study of these two pollution characteristics is important. In this study, a one-year observation was carried out at the Beijing Southern Suburb Observatory using the MAX-DOAS instrument, and the pollution characteristics of the typical haze and dust events were analyzed. First, the distribution of aerosol extinction (AE) and H<sub<2</sub<O concentrations in the two typical pollution events were studied. The results showed that the correlation coefficient (<i<r</i<) between H<sub<2</sub<O and AE at different heights decreased during dust processes and the correlation slope (\|k\|) increased, whereas <i<r</i< increased and \|k\| decreased during haze periods. The correlation slope increased during the dust episode due to low moisture content and increased O<sub<4</sub< absorption caused by abundant suspended dry crustal particles, but decreased during the haze episode due to a significant increase of H<sub<2</sub<O absorption. Secondly, the gas vertical column density (VCD) indicated that aerosol optical depth (AOD) increased during dust pollution events in the afternoon, while the H<sub<2</sub<O VCD decreased; in haze pollution processes, both H<sub<2</sub<O VCD and AOD increased. There were significant differences in meteorological conditions during haze (wind speed (WD) was <2 m/s, and relative humidity (RH) was <60%) and dust pollution (WD was <4 m/s, and RH was <60%). Next, the vertical distribution characteristics of gases during the pollution periods were studied. The AE profile showed that haze pollution lasted for a long time and changed slowly, whereas the opposite was true for dust pollution. The pollutants (aerosols, NO<sub<2</sub<, SO<sub<2</sub<, and HCHO) and H<sub<2</sub<O were concentrated below 1 km during both these typical pollution processes, and haze pollution was associated with a strong temperature inversion around 1.0 km. Lastly, the water vapor transport fluxes showed that the water vapor transport from the eastern air mass had an auxiliary effect on haze pollution at the observation location. Our results are of significance for exploring the pollution process of tropospheric trace gases and the transport of water vapor in Beijing, and provide a basis for satellite and model verification. MAX-DOAS haze pollution dust pollution Science Q Ang Li verfasserin aut Pinhua Xie verfasserin aut Zhaokun Hu verfasserin aut Jin Xu verfasserin aut Yeyuan Huang verfasserin aut Xiaomei Li verfasserin aut Hongyan Zhong verfasserin aut Hairong Zhang verfasserin aut Xin Tian verfasserin aut Bo Ren verfasserin aut Shuai Wang verfasserin aut Wenxuan Chai verfasserin aut Chuanyao Du verfasserin aut In Remote Sensing MDPI AG, 2009 13(2021), 24, p 5133 (DE-627)608937916 (DE-600)2513863-7 20724292 nnns volume:13 year:2021 number:24, p 5133 https://doi.org/10.3390/rs13245133 kostenfrei https://doaj.org/article/9fcbc15631374f379db137d8a8c5f0f7 kostenfrei https://www.mdpi.com/2072-4292/13/24/5133 kostenfrei https://doaj.org/toc/2072-4292 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4392 GBV_ILN_4700 AR 13 2021 24, p 5133
spelling	10.3390/rs13245133 doi (DE-627)DOAJ019245335 (DE-599)DOAJ9fcbc15631374f379db137d8a8c5f0f7 DE-627 ger DE-627 rakwb eng Hongmei Ren verfasserin aut The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Haze and dust pollution have a significant impact on human production, life, and health. In order to understand the pollution process, the study of these two pollution characteristics is important. In this study, a one-year observation was carried out at the Beijing Southern Suburb Observatory using the MAX-DOAS instrument, and the pollution characteristics of the typical haze and dust events were analyzed. First, the distribution of aerosol extinction (AE) and H<sub<2</sub<O concentrations in the two typical pollution events were studied. The results showed that the correlation coefficient (<i<r</i<) between H<sub<2</sub<O and AE at different heights decreased during dust processes and the correlation slope (\|k\|) increased, whereas <i<r</i< increased and \|k\| decreased during haze periods. The correlation slope increased during the dust episode due to low moisture content and increased O<sub<4</sub< absorption caused by abundant suspended dry crustal particles, but decreased during the haze episode due to a significant increase of H<sub<2</sub<O absorption. Secondly, the gas vertical column density (VCD) indicated that aerosol optical depth (AOD) increased during dust pollution events in the afternoon, while the H<sub<2</sub<O VCD decreased; in haze pollution processes, both H<sub<2</sub<O VCD and AOD increased. There were significant differences in meteorological conditions during haze (wind speed (WD) was <2 m/s, and relative humidity (RH) was <60%) and dust pollution (WD was <4 m/s, and RH was <60%). Next, the vertical distribution characteristics of gases during the pollution periods were studied. The AE profile showed that haze pollution lasted for a long time and changed slowly, whereas the opposite was true for dust pollution. The pollutants (aerosols, NO<sub<2</sub<, SO<sub<2</sub<, and HCHO) and H<sub<2</sub<O were concentrated below 1 km during both these typical pollution processes, and haze pollution was associated with a strong temperature inversion around 1.0 km. Lastly, the water vapor transport fluxes showed that the water vapor transport from the eastern air mass had an auxiliary effect on haze pollution at the observation location. Our results are of significance for exploring the pollution process of tropospheric trace gases and the transport of water vapor in Beijing, and provide a basis for satellite and model verification. MAX-DOAS haze pollution dust pollution Science Q Ang Li verfasserin aut Pinhua Xie verfasserin aut Zhaokun Hu verfasserin aut Jin Xu verfasserin aut Yeyuan Huang verfasserin aut Xiaomei Li verfasserin aut Hongyan Zhong verfasserin aut Hairong Zhang verfasserin aut Xin Tian verfasserin aut Bo Ren verfasserin aut Shuai Wang verfasserin aut Wenxuan Chai verfasserin aut Chuanyao Du verfasserin aut In Remote Sensing MDPI AG, 2009 13(2021), 24, p 5133 (DE-627)608937916 (DE-600)2513863-7 20724292 nnns volume:13 year:2021 number:24, p 5133 https://doi.org/10.3390/rs13245133 kostenfrei https://doaj.org/article/9fcbc15631374f379db137d8a8c5f0f7 kostenfrei https://www.mdpi.com/2072-4292/13/24/5133 kostenfrei https://doaj.org/toc/2072-4292 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4392 GBV_ILN_4700 AR 13 2021 24, p 5133
allfields_unstemmed	10.3390/rs13245133 doi (DE-627)DOAJ019245335 (DE-599)DOAJ9fcbc15631374f379db137d8a8c5f0f7 DE-627 ger DE-627 rakwb eng Hongmei Ren verfasserin aut The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Haze and dust pollution have a significant impact on human production, life, and health. In order to understand the pollution process, the study of these two pollution characteristics is important. In this study, a one-year observation was carried out at the Beijing Southern Suburb Observatory using the MAX-DOAS instrument, and the pollution characteristics of the typical haze and dust events were analyzed. First, the distribution of aerosol extinction (AE) and H<sub<2</sub<O concentrations in the two typical pollution events were studied. The results showed that the correlation coefficient (<i<r</i<) between H<sub<2</sub<O and AE at different heights decreased during dust processes and the correlation slope (\|k\|) increased, whereas <i<r</i< increased and \|k\| decreased during haze periods. The correlation slope increased during the dust episode due to low moisture content and increased O<sub<4</sub< absorption caused by abundant suspended dry crustal particles, but decreased during the haze episode due to a significant increase of H<sub<2</sub<O absorption. Secondly, the gas vertical column density (VCD) indicated that aerosol optical depth (AOD) increased during dust pollution events in the afternoon, while the H<sub<2</sub<O VCD decreased; in haze pollution processes, both H<sub<2</sub<O VCD and AOD increased. There were significant differences in meteorological conditions during haze (wind speed (WD) was <2 m/s, and relative humidity (RH) was <60%) and dust pollution (WD was <4 m/s, and RH was <60%). Next, the vertical distribution characteristics of gases during the pollution periods were studied. The AE profile showed that haze pollution lasted for a long time and changed slowly, whereas the opposite was true for dust pollution. The pollutants (aerosols, NO<sub<2</sub<, SO<sub<2</sub<, and HCHO) and H<sub<2</sub<O were concentrated below 1 km during both these typical pollution processes, and haze pollution was associated with a strong temperature inversion around 1.0 km. Lastly, the water vapor transport fluxes showed that the water vapor transport from the eastern air mass had an auxiliary effect on haze pollution at the observation location. Our results are of significance for exploring the pollution process of tropospheric trace gases and the transport of water vapor in Beijing, and provide a basis for satellite and model verification. MAX-DOAS haze pollution dust pollution Science Q Ang Li verfasserin aut Pinhua Xie verfasserin aut Zhaokun Hu verfasserin aut Jin Xu verfasserin aut Yeyuan Huang verfasserin aut Xiaomei Li verfasserin aut Hongyan Zhong verfasserin aut Hairong Zhang verfasserin aut Xin Tian verfasserin aut Bo Ren verfasserin aut Shuai Wang verfasserin aut Wenxuan Chai verfasserin aut Chuanyao Du verfasserin aut In Remote Sensing MDPI AG, 2009 13(2021), 24, p 5133 (DE-627)608937916 (DE-600)2513863-7 20724292 nnns volume:13 year:2021 number:24, p 5133 https://doi.org/10.3390/rs13245133 kostenfrei https://doaj.org/article/9fcbc15631374f379db137d8a8c5f0f7 kostenfrei https://www.mdpi.com/2072-4292/13/24/5133 kostenfrei https://doaj.org/toc/2072-4292 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4392 GBV_ILN_4700 AR 13 2021 24, p 5133
allfieldsGer	10.3390/rs13245133 doi (DE-627)DOAJ019245335 (DE-599)DOAJ9fcbc15631374f379db137d8a8c5f0f7 DE-627 ger DE-627 rakwb eng Hongmei Ren verfasserin aut The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Haze and dust pollution have a significant impact on human production, life, and health. In order to understand the pollution process, the study of these two pollution characteristics is important. In this study, a one-year observation was carried out at the Beijing Southern Suburb Observatory using the MAX-DOAS instrument, and the pollution characteristics of the typical haze and dust events were analyzed. First, the distribution of aerosol extinction (AE) and H<sub<2</sub<O concentrations in the two typical pollution events were studied. The results showed that the correlation coefficient (<i<r</i<) between H<sub<2</sub<O and AE at different heights decreased during dust processes and the correlation slope (\|k\|) increased, whereas <i<r</i< increased and \|k\| decreased during haze periods. The correlation slope increased during the dust episode due to low moisture content and increased O<sub<4</sub< absorption caused by abundant suspended dry crustal particles, but decreased during the haze episode due to a significant increase of H<sub<2</sub<O absorption. Secondly, the gas vertical column density (VCD) indicated that aerosol optical depth (AOD) increased during dust pollution events in the afternoon, while the H<sub<2</sub<O VCD decreased; in haze pollution processes, both H<sub<2</sub<O VCD and AOD increased. There were significant differences in meteorological conditions during haze (wind speed (WD) was <2 m/s, and relative humidity (RH) was <60%) and dust pollution (WD was <4 m/s, and RH was <60%). Next, the vertical distribution characteristics of gases during the pollution periods were studied. The AE profile showed that haze pollution lasted for a long time and changed slowly, whereas the opposite was true for dust pollution. The pollutants (aerosols, NO<sub<2</sub<, SO<sub<2</sub<, and HCHO) and H<sub<2</sub<O were concentrated below 1 km during both these typical pollution processes, and haze pollution was associated with a strong temperature inversion around 1.0 km. Lastly, the water vapor transport fluxes showed that the water vapor transport from the eastern air mass had an auxiliary effect on haze pollution at the observation location. Our results are of significance for exploring the pollution process of tropospheric trace gases and the transport of water vapor in Beijing, and provide a basis for satellite and model verification. MAX-DOAS haze pollution dust pollution Science Q Ang Li verfasserin aut Pinhua Xie verfasserin aut Zhaokun Hu verfasserin aut Jin Xu verfasserin aut Yeyuan Huang verfasserin aut Xiaomei Li verfasserin aut Hongyan Zhong verfasserin aut Hairong Zhang verfasserin aut Xin Tian verfasserin aut Bo Ren verfasserin aut Shuai Wang verfasserin aut Wenxuan Chai verfasserin aut Chuanyao Du verfasserin aut In Remote Sensing MDPI AG, 2009 13(2021), 24, p 5133 (DE-627)608937916 (DE-600)2513863-7 20724292 nnns volume:13 year:2021 number:24, p 5133 https://doi.org/10.3390/rs13245133 kostenfrei https://doaj.org/article/9fcbc15631374f379db137d8a8c5f0f7 kostenfrei https://www.mdpi.com/2072-4292/13/24/5133 kostenfrei https://doaj.org/toc/2072-4292 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4392 GBV_ILN_4700 AR 13 2021 24, p 5133
allfieldsSound	10.3390/rs13245133 doi (DE-627)DOAJ019245335 (DE-599)DOAJ9fcbc15631374f379db137d8a8c5f0f7 DE-627 ger DE-627 rakwb eng Hongmei Ren verfasserin aut The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Haze and dust pollution have a significant impact on human production, life, and health. In order to understand the pollution process, the study of these two pollution characteristics is important. In this study, a one-year observation was carried out at the Beijing Southern Suburb Observatory using the MAX-DOAS instrument, and the pollution characteristics of the typical haze and dust events were analyzed. First, the distribution of aerosol extinction (AE) and H<sub<2</sub<O concentrations in the two typical pollution events were studied. The results showed that the correlation coefficient (<i<r</i<) between H<sub<2</sub<O and AE at different heights decreased during dust processes and the correlation slope (\|k\|) increased, whereas <i<r</i< increased and \|k\| decreased during haze periods. The correlation slope increased during the dust episode due to low moisture content and increased O<sub<4</sub< absorption caused by abundant suspended dry crustal particles, but decreased during the haze episode due to a significant increase of H<sub<2</sub<O absorption. Secondly, the gas vertical column density (VCD) indicated that aerosol optical depth (AOD) increased during dust pollution events in the afternoon, while the H<sub<2</sub<O VCD decreased; in haze pollution processes, both H<sub<2</sub<O VCD and AOD increased. There were significant differences in meteorological conditions during haze (wind speed (WD) was <2 m/s, and relative humidity (RH) was <60%) and dust pollution (WD was <4 m/s, and RH was <60%). Next, the vertical distribution characteristics of gases during the pollution periods were studied. The AE profile showed that haze pollution lasted for a long time and changed slowly, whereas the opposite was true for dust pollution. The pollutants (aerosols, NO<sub<2</sub<, SO<sub<2</sub<, and HCHO) and H<sub<2</sub<O were concentrated below 1 km during both these typical pollution processes, and haze pollution was associated with a strong temperature inversion around 1.0 km. Lastly, the water vapor transport fluxes showed that the water vapor transport from the eastern air mass had an auxiliary effect on haze pollution at the observation location. Our results are of significance for exploring the pollution process of tropospheric trace gases and the transport of water vapor in Beijing, and provide a basis for satellite and model verification. MAX-DOAS haze pollution dust pollution Science Q Ang Li verfasserin aut Pinhua Xie verfasserin aut Zhaokun Hu verfasserin aut Jin Xu verfasserin aut Yeyuan Huang verfasserin aut Xiaomei Li verfasserin aut Hongyan Zhong verfasserin aut Hairong Zhang verfasserin aut Xin Tian verfasserin aut Bo Ren verfasserin aut Shuai Wang verfasserin aut Wenxuan Chai verfasserin aut Chuanyao Du verfasserin aut In Remote Sensing MDPI AG, 2009 13(2021), 24, p 5133 (DE-627)608937916 (DE-600)2513863-7 20724292 nnns volume:13 year:2021 number:24, p 5133 https://doi.org/10.3390/rs13245133 kostenfrei https://doaj.org/article/9fcbc15631374f379db137d8a8c5f0f7 kostenfrei https://www.mdpi.com/2072-4292/13/24/5133 kostenfrei https://doaj.org/toc/2072-4292 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4392 GBV_ILN_4700 AR 13 2021 24, p 5133
language	English
source	In Remote Sensing 13(2021), 24, p 5133 volume:13 year:2021 number:24, p 5133
sourceStr	In Remote Sensing 13(2021), 24, p 5133 volume:13 year:2021 number:24, p 5133
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	MAX-DOAS haze pollution dust pollution Science Q
isfreeaccess_bool	true
container_title	Remote Sensing
authorswithroles_txt_mv	Hongmei Ren @@aut@@ Ang Li @@aut@@ Pinhua Xie @@aut@@ Zhaokun Hu @@aut@@ Jin Xu @@aut@@ Yeyuan Huang @@aut@@ Xiaomei Li @@aut@@ Hongyan Zhong @@aut@@ Hairong Zhang @@aut@@ Xin Tian @@aut@@ Bo Ren @@aut@@ Shuai Wang @@aut@@ Wenxuan Chai @@aut@@ Chuanyao Du @@aut@@
publishDateDaySort_date	2021-01-01T00:00:00Z
hierarchy_top_id	608937916
id	DOAJ019245335
language_de	englisch
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In order to understand the pollution process, the study of these two pollution characteristics is important. In this study, a one-year observation was carried out at the Beijing Southern Suburb Observatory using the MAX-DOAS instrument, and the pollution characteristics of the typical haze and dust events were analyzed. First, the distribution of aerosol extinction (AE) and H<sub<2</sub<O concentrations in the two typical pollution events were studied. The results showed that the correlation coefficient (<i<r</i<) between H<sub<2</sub<O and AE at different heights decreased during dust processes and the correlation slope (\|k\|) increased, whereas <i<r</i< increased and \|k\| decreased during haze periods. The correlation slope increased during the dust episode due to low moisture content and increased O<sub<4</sub< absorption caused by abundant suspended dry crustal particles, but decreased during the haze episode due to a significant increase of H<sub<2</sub<O absorption. Secondly, the gas vertical column density (VCD) indicated that aerosol optical depth (AOD) increased during dust pollution events in the afternoon, while the H<sub<2</sub<O VCD decreased; in haze pollution processes, both H<sub<2</sub<O VCD and AOD increased. There were significant differences in meteorological conditions during haze (wind speed (WD) was <2 m/s, and relative humidity (RH) was <60%) and dust pollution (WD was <4 m/s, and RH was <60%). Next, the vertical distribution characteristics of gases during the pollution periods were studied. The AE profile showed that haze pollution lasted for a long time and changed slowly, whereas the opposite was true for dust pollution. The pollutants (aerosols, NO<sub<2</sub<, SO<sub<2</sub<, and HCHO) and H<sub<2</sub<O were concentrated below 1 km during both these typical pollution processes, and haze pollution was associated with a strong temperature inversion around 1.0 km. 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author	Hongmei Ren
spellingShingle	Hongmei Ren misc MAX-DOAS misc haze pollution misc dust pollution misc Science misc Q The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China
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topic_title	The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China MAX-DOAS haze pollution dust pollution
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title	The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China
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title_full	The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China
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author_browse	Hongmei Ren Ang Li Pinhua Xie Zhaokun Hu Jin Xu Yeyuan Huang Xiaomei Li Hongyan Zhong Hairong Zhang Xin Tian Bo Ren Shuai Wang Wenxuan Chai Chuanyao Du
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title_sort	characterization of haze and dust processes using max-doas in beijing, china
title_auth	The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China
abstract	Haze and dust pollution have a significant impact on human production, life, and health. In order to understand the pollution process, the study of these two pollution characteristics is important. In this study, a one-year observation was carried out at the Beijing Southern Suburb Observatory using the MAX-DOAS instrument, and the pollution characteristics of the typical haze and dust events were analyzed. First, the distribution of aerosol extinction (AE) and H<sub<2</sub<O concentrations in the two typical pollution events were studied. The results showed that the correlation coefficient (<i<r</i<) between H<sub<2</sub<O and AE at different heights decreased during dust processes and the correlation slope (\|k\|) increased, whereas <i<r</i< increased and \|k\| decreased during haze periods. The correlation slope increased during the dust episode due to low moisture content and increased O<sub<4</sub< absorption caused by abundant suspended dry crustal particles, but decreased during the haze episode due to a significant increase of H<sub<2</sub<O absorption. Secondly, the gas vertical column density (VCD) indicated that aerosol optical depth (AOD) increased during dust pollution events in the afternoon, while the H<sub<2</sub<O VCD decreased; in haze pollution processes, both H<sub<2</sub<O VCD and AOD increased. There were significant differences in meteorological conditions during haze (wind speed (WD) was <2 m/s, and relative humidity (RH) was <60%) and dust pollution (WD was <4 m/s, and RH was <60%). Next, the vertical distribution characteristics of gases during the pollution periods were studied. The AE profile showed that haze pollution lasted for a long time and changed slowly, whereas the opposite was true for dust pollution. The pollutants (aerosols, NO<sub<2</sub<, SO<sub<2</sub<, and HCHO) and H<sub<2</sub<O were concentrated below 1 km during both these typical pollution processes, and haze pollution was associated with a strong temperature inversion around 1.0 km. Lastly, the water vapor transport fluxes showed that the water vapor transport from the eastern air mass had an auxiliary effect on haze pollution at the observation location. Our results are of significance for exploring the pollution process of tropospheric trace gases and the transport of water vapor in Beijing, and provide a basis for satellite and model verification.
abstractGer	Haze and dust pollution have a significant impact on human production, life, and health. In order to understand the pollution process, the study of these two pollution characteristics is important. In this study, a one-year observation was carried out at the Beijing Southern Suburb Observatory using the MAX-DOAS instrument, and the pollution characteristics of the typical haze and dust events were analyzed. First, the distribution of aerosol extinction (AE) and H<sub<2</sub<O concentrations in the two typical pollution events were studied. The results showed that the correlation coefficient (<i<r</i<) between H<sub<2</sub<O and AE at different heights decreased during dust processes and the correlation slope (\|k\|) increased, whereas <i<r</i< increased and \|k\| decreased during haze periods. The correlation slope increased during the dust episode due to low moisture content and increased O<sub<4</sub< absorption caused by abundant suspended dry crustal particles, but decreased during the haze episode due to a significant increase of H<sub<2</sub<O absorption. Secondly, the gas vertical column density (VCD) indicated that aerosol optical depth (AOD) increased during dust pollution events in the afternoon, while the H<sub<2</sub<O VCD decreased; in haze pollution processes, both H<sub<2</sub<O VCD and AOD increased. There were significant differences in meteorological conditions during haze (wind speed (WD) was <2 m/s, and relative humidity (RH) was <60%) and dust pollution (WD was <4 m/s, and RH was <60%). Next, the vertical distribution characteristics of gases during the pollution periods were studied. The AE profile showed that haze pollution lasted for a long time and changed slowly, whereas the opposite was true for dust pollution. The pollutants (aerosols, NO<sub<2</sub<, SO<sub<2</sub<, and HCHO) and H<sub<2</sub<O were concentrated below 1 km during both these typical pollution processes, and haze pollution was associated with a strong temperature inversion around 1.0 km. Lastly, the water vapor transport fluxes showed that the water vapor transport from the eastern air mass had an auxiliary effect on haze pollution at the observation location. Our results are of significance for exploring the pollution process of tropospheric trace gases and the transport of water vapor in Beijing, and provide a basis for satellite and model verification.
abstract_unstemmed	Haze and dust pollution have a significant impact on human production, life, and health. In order to understand the pollution process, the study of these two pollution characteristics is important. In this study, a one-year observation was carried out at the Beijing Southern Suburb Observatory using the MAX-DOAS instrument, and the pollution characteristics of the typical haze and dust events were analyzed. First, the distribution of aerosol extinction (AE) and H<sub<2</sub<O concentrations in the two typical pollution events were studied. The results showed that the correlation coefficient (<i<r</i<) between H<sub<2</sub<O and AE at different heights decreased during dust processes and the correlation slope (\|k\|) increased, whereas <i<r</i< increased and \|k\| decreased during haze periods. The correlation slope increased during the dust episode due to low moisture content and increased O<sub<4</sub< absorption caused by abundant suspended dry crustal particles, but decreased during the haze episode due to a significant increase of H<sub<2</sub<O absorption. Secondly, the gas vertical column density (VCD) indicated that aerosol optical depth (AOD) increased during dust pollution events in the afternoon, while the H<sub<2</sub<O VCD decreased; in haze pollution processes, both H<sub<2</sub<O VCD and AOD increased. There were significant differences in meteorological conditions during haze (wind speed (WD) was <2 m/s, and relative humidity (RH) was <60%) and dust pollution (WD was <4 m/s, and RH was <60%). Next, the vertical distribution characteristics of gases during the pollution periods were studied. The AE profile showed that haze pollution lasted for a long time and changed slowly, whereas the opposite was true for dust pollution. The pollutants (aerosols, NO<sub<2</sub<, SO<sub<2</sub<, and HCHO) and H<sub<2</sub<O were concentrated below 1 km during both these typical pollution processes, and haze pollution was associated with a strong temperature inversion around 1.0 km. Lastly, the water vapor transport fluxes showed that the water vapor transport from the eastern air mass had an auxiliary effect on haze pollution at the observation location. Our results are of significance for exploring the pollution process of tropospheric trace gases and the transport of water vapor in Beijing, and provide a basis for satellite and model verification.
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title_short	The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China
url	https://doi.org/10.3390/rs13245133 https://doaj.org/article/9fcbc15631374f379db137d8a8c5f0f7 https://www.mdpi.com/2072-4292/13/24/5133 https://doaj.org/toc/2072-4292
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The Characterization of Haze and Dust Processes Using MAX-DOAS in Beijing, China

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