Based on the environmental pollutants monitoring data, meteorological observation data, the NCEP reanalysis data, the MODIS fire monitoring and aerosol optical depth data, using trajectory simulation model, etc., the forming reason of the two continuous serious fog and haze weather was analyzed which occurred in Wuhan during 11-12 (process I) and 15(process II) June 2012. The result shows that the pollutant which form with the straws burning was transmitted into Wuhan area by airflow blow 700 hPa. The fog and haze weather is formed in the local moisture increase, continued joint configuration of rising and sinking movement near the ground, as well as the combined effect of the low-level inversion and basin topography. The transformation of the horizontal flow field, updrafts enhanced, relative humidity decreased, sinking airflow arrived the ground, and the top of the inversion layer decreased are all conducive to visibility gradually turned better. The difference between process I and process II is that the pollutants after the end of the process I did not fully deposition, the local pollutants hygroscopic caused the process II start earlier.
GUO Yinglian
,
WANG Jizhu
,
LIU Xiwen
. Cause Analysis of Two Continuous Serious Fog and Haze Weather in Wuhan Area[J]. Plateau Meteorology, 2014
, 33(5)
: 1411
-1420
.
DOI: 10.7522/j.issn.1000-0534.2013.00079
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