A trans-Pacific Asian dust episode and its impacts to air quality in the east coast of U.S.

Wu, Yonghua; Han, Zaw; Nazmi, C.; Gross, Barry; Moshary, Fred

doi:10.1016/j.atmosenv.2015.02.013

Cited by 25 publications

(17 citation statements)

References 42 publications

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“…They are often transported over long distances and their influence can be identified on regional and global scales (Chin et al, 2007;Uno et al, 2009). For instance, Asian dusts are frequently observed in spring resulting in air pollution in the downwind areas of East Asia (Kim et al, 2010;Sakai et al, 2002Sakai et al, , 2003Liu et al, 2011;Li et al, 2015), even affecting North America (Fischer et al, 2009;Wu et al, 2015). They affect cloud microphysics and precipitation by providing cloud condensation nuclei (Rosenfeld et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Characterizing a persistent Asian dust transport event: Optical properties and impact on air quality through the ground-based and satellite measurements over Nanjing, China

Han

Wang

et al. 2015

Atmospheric Environment

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Section: Introductionmentioning

confidence: 99%

Characterizing a persistent Asian dust transport event: Optical properties and impact on air quality through the ground-based and satellite measurements over Nanjing, China

Han

Wang

et al. 2015

Atmospheric Environment

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“…In addition, the trans-Pacific transports of Asian dust in spring and mixture with other aerosols are also observed and characterized by CLN in the US East Coast [4]. The potential influence on the air quality and validation of model profiling prediction are verified [8]. A large scale transport episode observed by CLN in March 2012 is shown in Fig 6.…”

Section: Results and Applications 31 Regional Transport Of Canadianmentioning

confidence: 76%

“…As an example, Figure 2 shows the time-height variation of aerosol by CLN on Aug. 8,2014. Aloft aerosol plumes can be clearly seen at CCNY, UMBC and HU sites.…”

Section: Results and Applications 31 Regional Transport Of Canadianmentioning

confidence: 99%

New Results from the NOAA CREST Lidar Network (CLN) Observations in the US Eastcoast

Moshary

Han

et al. 2016

EPJ Web of Conferences

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This paper presents coordinated ground-based observations by the NOAA-CREST Lidar Network (CLN) for profiling of aerosols, cloud, water vapor, and wind along the US east coast including Caribbean region at Puerto Rico. The instrumentation, methodology and observation capability are reviewed. The applications to continental and intercontinental-scale transport of smoke and dust plumes, and their large scale regional impact are discussed.

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“…The dust plumes further extended to the South China Sea , Taiwan (Tsai et al, 2013), South Korea (Tatarov et al, 2012), Japan (Zaizen et al, 2014), and even to North America (Wu et al, 2015). This dust storm was as strong as the one in 20-21 March 2002 and attracted considerable attention.…”

Section: Introductionmentioning

confidence: 98%

“…Asian dust originating from the arid and semiarid areas in Mongolia and China can be transported for long distances, reaching Beijing , Shanghai , Xiamen , Taiwan (Tsai et al, 2012(Tsai et al, , 2014, and even as far as North America Wu et al, 2015), exerting significant impacts on the air quality of both densely populated habitations and remote regions. Huang et al (2014) showed that Asian dust could be transported from the Qilian Shan or from the Tsaidam Basin through Qinghai and Gansu provinces to reach the Pacific Ocean, and that dust originating from the Taklimakan Desert could travel across the Hexi Corridor and Loess Plateau to reach southeastern China.…”

Section: Introductionmentioning

confidence: 99%

Environmentally dependent dust chemistry of a super Asian dust storm in March 2010: observation and simulation

Wang

Dong

et al. 2018

Atmos. Chem. Phys.

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Abstract. Near-surface and vertical in situ measurements of atmospheric particles were conducted in Shanghai during 19-23 March 2010 to explore the transport and chemical evolution of dust particles in a super dust storm. An air quality model with optimized physical dust emission scheme and newly implemented dust chemistry was utilized to study the impact of dust chemistry on regional air quality. Two discontinuous dust periods were observed with one traveling over northern China (DS1) and the other passing over the coastal regions of eastern China (DS2). Stronger mixing extents between dust and anthropogenic emissions were found in DS2, reflected by the higher SO 2 / PM 10 and NO 2 / PM 10 ratios as well as typical pollution elemental species such as As, Cd, Pb, and Zn. As a result, the concentrations of SO ] ratio, suggesting the heterogeneous reactions between calcites and acid gases were significantly promoted in DS2 due to the higher level of relative humidity and gaseous pollution precursors. Lidar observation showed a columnar effect on the vertical structure of particle optical properties in DS1 that dust dominantly accounted for ∼ 80-90 % of the total particle extinction from near the ground to ∼ 700 m. In contrast, the dust plumes in DS2 were restrained within lower altitudes while the extinction from spherical particles exhibited a maximum at a high altitude of ∼ 800 m. The model simulation reproduced relatively consistent results with observations that strong impacts of dust heterogeneous reactions on secondary aerosol formation occurred in areas where the anthropogenic emissions were intensive. Compared to the sulfate simulation, the nitrate formation on dust is suggested to be improved in the future modeling efforts.

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A trans-Pacific Asian dust episode and its impacts to air quality in the east coast of U.S.

Cited by 25 publications

References 42 publications

Characterizing a persistent Asian dust transport event: Optical properties and impact on air quality through the ground-based and satellite measurements over Nanjing, China

Characterizing a persistent Asian dust transport event: Optical properties and impact on air quality through the ground-based and satellite measurements over Nanjing, China

New Results from the NOAA CREST Lidar Network (CLN) Observations in the US Eastcoast

Environmentally dependent dust chemistry of a super Asian dust storm in March 2010: observation and simulation

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