Journal of University of Chinese Academy of Sciences >
Experimental Study of Numerical Forecast on Urban Air Quality
Received date: 2002-03-15
Revised date: 2002-07-10
Online published: 2003-03-10
In order to make business forecast on urban air quality, a new city-scale coupling model system between meteorology and air quality has been developed recently. The system was used to do a lot of experimental studies on practical forecast of air quality for 24 hours in Chongqing, Tianjin, Guangzhou, and Jinan cities.Comparisons between forecasted and field measured concentration-meteorology fields show that ensemble mean of ratios between forecasted and measured concentrations (SO2, NO2, and PM10) and wind speed are 1.02±0.36 and 1.08±0.38; probability that difference between forecasted and measured wind direction is less than 67.5° can exceed 80%; probability that difference between forecasted and measured temperature is less than 1.0°C can exceed 75%; forecasting accuracy of rainfall amount for 24 hours is more than 80%; forecasting accuracy of daily mean API can exceed 80%; there are good agreements between forecasted and measured concentration-meteorology fields.
Lei Yuan , Wang Ying , Lei Xiaoen . Experimental Study of Numerical Forecast on Urban Air Quality[J]. Journal of University of Chinese Academy of Sciences, 2003 , 20(2) : 146 -154 . DOI: 10.7523/j.issn.2095-6134.2003.2.003
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