Atmospheric Feedback of Urban Boundary Layer with Implications for Climate Adaptation

2015 ◽  
Vol 49 (17) ◽  
pp. 10598-10606 ◽  
Author(s):  
Marissa S. Liang ◽  
Timothy C. Keener
Keyword(s):  
Boundary Layer ◽  
Climate Adaptation ◽  
Urban Boundary Layer ◽  
Atmospheric Feedback

scholarly journals The impact of a foehn wind on PM10 concentrations and the urban boundary layer in complex terrain: a case study from Kraków, Poland

Tellus B ◽  
2021 ◽  
Vol 73 (1) ◽  
pp. 1-26
Author(s):  
Piotr Sekuła ◽  
Anita Bokwa ◽  
Zbigniew Ustrnul ◽  
Mirosław Zimnoch ◽  
Bogdan Bochenek
Keyword(s):  
Boundary Layer ◽  
Complex Terrain ◽  
Urban Boundary Layer ◽  
The Impact

Sensitivity of urban boundary layer simulation to urban canopy models and PBL schemes in Beijing

2018 ◽  
Vol 131 (5) ◽  
pp. 1235-1248 ◽  
Author(s):  
Meng Huang ◽  
Zhiqiu Gao ◽  
Shiguang Miao ◽  
Fei Chen
Keyword(s):  
Boundary Layer ◽  
Urban Canopy ◽  
Urban Boundary Layer

Molecular characterization of size-segregated organic aerosols in the urban boundary layer in wintertime Beijing by FT-ICR MS

2021 ◽  
Author(s):  
Qiaorong Xie ◽  
Sihui Su ◽  
Shuang Chen ◽  
Qiang Zhang ◽  
Siyao Yue ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Size Distribution ◽  
Molecular Characterization ◽  
Organic Aerosols ◽  
Urban Boundary Layer ◽  
Vertical Profiles ◽  
Unique Information ◽  
Ft Icr Ms ◽  
Ft Icr

Our study provides unique information on the vertical profiles and size distribution of urban organic aerosols by FT-ICR MS.

scholarly journals Impacts of urban land-surface forcing on ozone air quality in the Seoul metropolitan area

2013 ◽  
Vol 13 (4) ◽  
pp. 2177-2194 ◽  
Author(s):  
Y.-H. Ryu ◽  
J.-J. Baik ◽  
K.-H. Kwak ◽  
S. Kim ◽  
N. Moon
Keyword(s):  
Boundary Layer ◽  
Air Quality ◽  
Urban Area ◽  
Metropolitan Area ◽  
Land Surface ◽  
Urban Boundary Layer ◽  
Breeze Circulation ◽  
Air Masses ◽  
Elevated O3 ◽  
Seoul Metropolitan Area

Abstract. Modified local meteorology owing to heterogeneities in the urban–rural surface can affect urban air quality. In this study, the impacts of urban land-surface forcing on ozone air quality during a high ozone (O3) episode in the Seoul metropolitan area, South Korea, are investigated using a high-resolution chemical transport model (CMAQ). Under fair weather conditions, the temperature excess (urban heat island) significantly modifies boundary layer characteristics/structures and local circulations. The modified boundary layer and local circulations result in an increase in O3 levels in the urban area of 16 ppb in the nighttime and 13 ppb in the daytime. Enhanced turbulence in the deep urban boundary layer dilutes pollutants such as NOx, and this contributes to the elevated O3 levels through the reduced O3 destruction by NO in the NOx-rich environment. The advection of O3 precursors over the mountains near Seoul by the prevailing valley-breeze circulation in the mid- to late morning results in the build-up of O3 over the mountains in conjunction with biogenic volatile organic compound (BVOC) emissions there. As the prevailing local circulation in the afternoon changes to urban-breeze circulation, the O3-rich air masses over the mountains are advected over the urban area. The urban-breeze circulation exerts significant influences on not only the advection of O3 but also the chemical production of O3 under the circumstances in which both anthropogenic and biogenic (natural) emissions play important roles in O3 formation. As the air masses that are characterized by low NOx and high BVOC levels and long OH chain length are advected over the urban area from the surroundings, the ozone production efficiency increases in the urban area. The relatively strong vertical mixing in the urban boundary layer embedded in the sea-breeze inflow layer reduces NOx levels, thus contributing to the elevated O3 levels in the urban area.

Pollutant Dispersion in the Urban Boundary Layer

2015 ◽  
pp. 435-441 ◽  
Author(s):  
J. M. Tomas ◽  
M. J. B. M. Pourquie ◽  
H. E. Eisma ◽  
G. E. Elsinga ◽  
H. J. J. Jonker ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Pollutant Dispersion ◽  
Urban Boundary Layer

scholarly journals Effect of sea breeze propagation on the urban boundary layer of the metropolitan region of Sao Paulo, Brazil

2018 ◽  
Vol 214 ◽  
pp. 174-188 ◽  
Author(s):  
Flávia N.D. Ribeiro ◽  
Amauri P. de Oliveira ◽  
Jacyra Soares ◽  
Regina M. de Miranda ◽  
Michael Barlage ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Sea Breeze ◽  
Sao Paulo ◽  
Urban Boundary Layer ◽  
Metropolitan Region ◽  
São Paulo
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