RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2016, Vol. 25 >> Issue (Z1): 59-67.doi: 10.11870/cjlyzyyhj20160Z1009

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RESEARCHES OF WEATHER PATTERN AND POLLUTION METEOROLOGICAL CHARACTERISTICS IN CHENGDU AREA

ZENG Sheng-lan, WANG Ya-fang   

  1. Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, College of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu 610225, China
  • Received:2016-05-28 Revised:2016-10-08 Online:2016-11-26
  • Supported by:
    National Science Foundation of Youth Science Fund Project(41505122);Sichuan Province Science and Technology Major Project of Environmental Protection(2013HBZX01);Sichuan Province Science and Technology Support Project(2015GZ0238);Introduce Talents Start Project of Chengdu University of Information Technology(KYTZ201429)

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Abstract: The research on pollution weather classification has great significance for air quality forecast and pollution total amount control. To provide the basis for air quality forecast and early warning, the weather type that affect the air quality of Chengdu was classified based on the ground pressure situation from 2013 to 2014, then the air quality under different weather type was analyzed, and then the pollution meteorological characteristics of each weather type was studied based on meteorological monitoring data. Results showed that there are 5 weather types based on 500 hpa circulation situation, including two-trough and one-ridge type, one-trough and one-ridge type, latitude type, trough and ridge in phase type and so on, The air quality deteriorated under the control of two-trough and one-ridge type, one-trough and two-ridge type and trough and ridge in phase type. There was 10 weather types that influence air pollution based on surface pressure situation, including high pressure type, at the back of the high pressure type, at the bottom of the high pressure type, low pressure type, at the top of the low pressure type, at the front of the low pressure type, at the bottom of the low pressure type and so on. The air quality deteriorated under the control of high pressure type, at the back of the high pressure type, at the bottom of the high pressure type.

Key words: 500 hpa circulation situation, ground pressure situation, air quality index (AQI), meteorological factor

CLC Number: 

  • X51
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