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Advances in Meteorology
Volume 2017 (2017), Article ID 2012401, 10 pages
Research Article

Simulation of the Impacts of Urbanization on Winter Meteorological Fields over the Pearl River Delta Region

1School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou 510275, China
2Guiyang Bureau of Meteorology, Guiyang 550001, China
3Guizhou Meteorological Bureau, Guiyang 550002, China
4Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, Sun Yat-sen University, Guangzhou 510275, China

Correspondence should be addressed to Wenshi Lin and Jiangnan Li

Received 29 May 2017; Revised 29 September 2017; Accepted 9 October 2017; Published 15 November 2017

Academic Editor: Anthony R. Lupo

Copyright © 2017 Naixing Luo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The influences of urbanization on weather in Guangdong Province, China, were studied using the Weather Research and Forecasting model from 31 December 2009 through 3 January 2010. Model outputs were compared with extensive monitoring of meteorological data to examine the simulation ability. Model results between tests (with and without land-use change) show that the urbanization had major effects on meteorological fields across nearly the entire Pearl River Delta region and particularly in urban areas. Studied fields (wind speed, temperature, precipitation, and sensible and latent heat fluxes) were affected by the urbanization of the PRD region. The major influences occurred in urban areas, where wind speeds decreased greatly, while the daytime surface upward sensible heat flux clearly increased. Unlike the sensible heat flux, the latent heat flux had a nonmonotonic increase or decrease. As a consequence of the two heat fluxes, 2-m temperature varied with location and time. Change of precipitation was complex. The main rain band became more concentrated, while precipitation decreased upwind of the urban area and increased downwind.