Assessment of the impact of the meteorological meso-scale circulation on air quality in arid subtropical region.

摘要: In this paper, COSMO numerical weather prediction model is used to simulate land-sea breeze circulation in the north coast of Oman and analyze variability PBL depth. Typical summer day 1st August 2009 winter January were simulated verified by surface observations. The was initialized using German global which runs as 40 km resolution 40 vertical layers. simulations show differences onset, strength, inland penetration sea breeze. high sea-land thermal contrast season induces earlier onset progression with larger horizontal extents. around 150 65 km, respectively. depth defined from verticals profiles turbulence kinetic energy (TKE). height varied at 1,600 m 700 m case. These results are general good agreement National Centers for Environmental Prediction Global Data Assimilation System (NCEP-GDAS) model. dispersive ability atmosphere tested through mixing coefficient (VMC) generated NCEP-GDAS simulations. VMC during case approximately four times than respective one Consequently, advection breeze, a shallow dome less 100 m shaped forms an obstacle air-pollutant dispersion.