|
| Atmospheric Pollution Diffusion in Anhui Province under Global Climate Change |
| Received:March 15, 2019 Revised:June 25, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2019.06.010 |
| KeyWord:atmospheric pollutants diffusion ability Gauss modes |
| Author | Institution |
| HUANG Yong |
1. Anhui Key Lab of Atmospheric Science and Remote Sensing, Anhui Meteorology Institute, Hefei , China;2. Shouxian National Climatology Observatory, Shouxian , China; 3. Typical Eco- meteorological Farmland base of Huaihe River Basin CMA, Shouxian , China |
| ZHANG Hong |
4. Anhui Institute of Environment Science, Hefei , China |
| WANG La-bao |
1. Anhui Key Lab of Atmospheric Science and Remote Sensing, Anhui Meteorology Institute, Hefei , China;2. Shouxian National Climatology Observatory, Shouxian , China; 3. Typical Eco- meteorological Farmland base of Huaihe River Basin CMA, Shouxian , China |
| WANG Ru-wei |
5. USTC School of Earth and Space Science, Hefei , China |
| MEIJian-ming |
6. Tongling Environment Observatory, Tongling , China |
|
| Hits: |
| Download times: |
| Abstract: |
| In this paper, the change characteristics of atmospheric pollution diffusion in Anhui Province were studied with the 30 years (from 1981—2010) data of 35 meteorological observatories, which had not been relocated from 1981 to 2010. For time variation, the percent of unstable day was increased annually at 0.31%. The atmospheric pollution diffusion was evolved with the character of "enhancement-decrease-enhancement". The ability of diffusion was decreased from 1997 to 2004. For the spatial distribution, the change trend of unstable day proportion was increased year by year, except the regions of West and East area along the Yangtze River, and some area in eastern of mountain area in Southern Anhui (that of Anqing decreased the fastest, with an annual rate of ?0.32%). The simulation results with Gauss modes showed that, most of the region's atmospheric pollutant dispersion capacity was enhanced with the same pollution source. In addition, the diffusion ability of half of the 35 observatories was decreased. The vertical diffusion was enhanced and the horizontal transmission was weakened in some regions, such as eastern part of Huaibei Plain, west-northern of Dabie Mountain and east-northern of mountain area in Southern Anhui. Oppositely, in the west part of Yangtze River, the vertical diffusion was weakened and horizontal transmission was enhanced. |
| Close |
|
|
|