Study on the applicability of key parameters from dust emission scheme in WRF/Chem over northwestern China

In order to more accurate quantitative simulation and forecast of sandstorm in northwest China, in this paper, the dust process occurred in northwest China was simulated by using the WRF/Chem model coupling of Shao2004 dust emission parameterization scheme. The influence of key parameter C in Shao2004 scheme is analyzed set at different values on simulated spatial and temporal dust concentration, estimated vertical dust flux and estimated PM10 and PM2.5 concentration of six stations in northwest China. And by comparing the concentration of PM concentration observed at the sites, the results were listed as: Parameter C has an significant influence on the simulation dust scope and maximum center value of dust concentration and vertical dust flux; Different C values can well simulate the variation trend of PM10 and PM2.5 concentration in dust weather, but only when the C value set as 1, this model can more accurately simulate the change of PM10 and PM2.5 concentration in the dust process in northwest China.

• Publication year

  2019

• Venue

  IOP Conference Series: Earth and Environment

• Publication date

  2019-12-01

• Fields of study

  Physics, Environmental Science

• Identifiers
  DOI 10.1088/1755-1315/358/2/022058
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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