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Title: Urbanization Effect on Winter Haze in the Yangtze River Delta Region of China

Journal Article · · Geophysical Research Letters
 [1]; ORCiD logo [2];  [2]; ORCiD logo [3];  [2]; ORCiD logo [2];  [4]; ORCiD logo [5]; ORCiD logo [6]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Hohai Univ., Nanjing (China)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. School of Earth and Space Sciences, University of Science and Technology of China, Hefei China
  4. College of Atmospheric Science, Nanjing University of Information Science and Technology, Nanjing China
  5. Hohai Univ., Nanjing (China)
  6. Nanjing Univ. (China). School of Atmospheric Sciences

The impact of urbanization-induced land-cover change and increase in anthropogenic emissions on the air quality of the megacity cluster of the Yangtze River Delta is investigated using the WRF-Chem model coupled with an urban canopy model at cloud-resolving resolution. The urban land-cover effect results in considerable reduction of near-surface aerosol concentrations over urban regions and an increase in particle concentrations at higher altitudes over the surrounding rural areas. The urban heat island effect increases the lower atmospheric instability and vertical velocity, thus increasing the planetary boundary layer height and ventilation over the urban area, favoring the dispersion of pollutants from urbanized areas to their immediate vicinities. However, the urbanization-induced increases in aerosol emissions outweigh that of land-cover change, resulting in a net increase in surface particle concentrations by up to 50 μg m-3 and the occurrence of winter haze by more than 10 d season-1 in the Yangtze River Delta region.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1544247
Journal Information:
Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 13 Vol. 45; ISSN 0094-8276
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

References (56)

Substantial contribution of anthropogenic air pollution to catastrophic floods in Southwest China: AIR POLLUTION TO CATASTROPHIC FLOODS journal July 2015
Haze Days in North China and the associated atmospheric circulations based on daily visibility data from 1960 to 2012: HAZE DAYS AND ATMOSPHERIC CIRCULATIONS journal June 2015
A case study of urbanization impact on summer precipitation in the Greater Beijing Metropolitan Area: Urban heat island versus aerosol effects: URBANIZATION IMPACT ON PRECIPITATION journal October 2015
Modeling the contribution of long-term urbanization to temperature increase in three extensive urban agglomerations in China: URBANIZATION IMPACT ON TEMPERATURE journal February 2016
Contribution of urbanization to the increase of extreme heat events in an urban agglomeration in east China: Urbanization and the Increase of EHEs journal July 2017
The integrated WRF/urban modelling system: development, evaluation, and applications to urban environmental problems journal January 2011
Urbanization-induced regional warming in Yangtze River Delta: potential role of anthropogenic heat release: ANTHROPOGENIC HEAT-CAUSED REGIONAL WARMING IN YANGTZE RIVER DELTA journal February 2015
The energetic basis of the urban heat island journal January 1982
Impact of anthropogenic heat release on regional climate in three vast urban agglomerations in China journal February 2014
Light-absorbing particles in snow and ice: Measurement and modeling of climatic and hydrological impact journal November 2014
Urban heat island effect on annual mean temperature during the last 50 years in China journal October 2004
Source apportionment of carbon monoxide over India: a quantitative analysis using MOZART-4 journal October 2020
Mechanism for the formation of the January 2013 heavy haze pollution episode over central and eastern China journal November 2013
A European aerosol phenomenology—1: physical characteristics of particulate matter at kerbside, urban, rural and background sites in Europe journal May 2004
Fully coupled “online” chemistry within the WRF model journal December 2005
The ion chemistry, seasonal cycle, and sources of PM2.5 and TSP aerosol in Shanghai journal May 2006
Air pollution in mega cities in China journal January 2008
Characterization of parameters influencing the spatio-temporal variability of urban particle number size distributions in four European cities journal October 2013
WRF/Chem modeling of the impacts of urban expansion on regional climate and air pollutants in Yangtze River Delta, China journal April 2015
Impact of urbanization level on urban air quality: A case of fine particles (PM 2.5 ) in Chinese cities journal November 2014
Visibility, air quality and daily mortality in Shanghai, China journal May 2009
A Simple Single-Layer Urban Canopy Model For Atmospheric Models: Comparison With Multi-Layer And Slab Models journal December 2001
Urban effects on low-level clouds around the Tokyo metropolitan area on clear summer days: URBAN EFFECTS ON CLOUDS IN SUMMER journal March 2004
More frequent cloud-free sky and less surface solar radiation in China from 1955 to 2000: CLOUDS AND RADIATION IN CHINA journal January 2006
Evolution of ozone, particulates, and aerosol direct radiative forcing in the vicinity of Houston using a fully coupled meteorology-chemistry-aerosol model journal January 2006
Variability of solar radiation under cloud-free skies in China: The role of aerosols journal January 2007
Impact of aerosols on convective clouds and precipitation: AEROSOL IMPACT ON CONVECTIVE CLOUDS journal April 2012
Radiative forcing and climate response journal March 1997
Interactive coupling of regional climate and sulfate aerosol models over eastern Asia journal March 1999
Regional simulation of anthropogenic sulfur over East Asia and its sensitivity to model parameters journal April 2001
Evidence for a significant urbanization effect on climate in China journal June 2004
Health Effects of Fine Particulate Air Pollution: Lines that Connect journal June 2006
Ventilation coefficient and boundary layer height impact on urban air quality journal January 2016
Flood or Drought: How Do Aerosols Affect Precipitation? journal September 2008
Climate Forcing by Anthropogenic Aerosols journal January 1992
Suppression of Rain and Snow by Urban and Industrial Air Pollution journal March 2000
The dependence of the urban heat island intensity on latitude A statistical approach [The dependence of the urban heat island intensity on latitude A statistical approach] journal October 2005
Detection of Urban-Induced Rainfall Anomalies in a Major Coastal City journal April 2003
Urbanization Effects on Observed Surface Air Temperature Trends in North China journal March 2008
Impacts of Urban Processes and Urbanization on Summer Precipitation: A Case Study of Heavy Rainfall in Beijing on 1 August 2006 journal April 2011
A New Estimation of Urbanization’s Contribution to the Warming Trend in China journal November 2015
A Demonstration That Large-Scale Warming Is Not Urban journal June 2006
Effects of aerosols on trade wind cumuli over the Indian Ocean: Model simulations journal April 2006
City clusters in China: air and surface water pollution journal September 2006
Regional simulation of anthropogenic sulfur over East Asia and its sensitivity to model parameters journal April 2001
Regional simulation of anthropogenic sulfur over East Asia and its sensitivity to model parameters journal January 2001
An investigation of the sub-grid variability of trace gases and aerosols for global climate modeling journal January 2010
Analysis of the formation of fog and haze in North China Plain (NCP) journal January 2011
Sulfur dioxide and primary carbonaceous aerosol emissions in China and India, 1996–2010 journal January 2011
Effects of urban land expansion on the regional meteorology and air quality of eastern China journal January 2015
Urbanization-induced urban heat island and aerosol effects on climate extremes in the Yangtze River Delta region of China journal January 2017
A review of measurement-based assessments of the aerosol direct radiative effect and forcing journal January 2006
Effect of explicit urban land surface representation on the simulation of the 26 July 2005 heavy rain event over Mumbai, India journal January 2008
Asian emissions in 2006 for the NASA INTEX-B mission journal January 2009
Analysis of the formation of fog and haze in North China Plain (NCP) journal January 2011
Asian emissions in 2006 for the NASA INTEX-B mission journal January 2009

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