本文關(guān)鍵詞：氣溶膠直接氣候效應(yīng)對(duì)天津氣象和空氣質(zhì)量的影響　出處：《中國(guó)環(huán)境科學(xué)》2017年03期 　論文類型：期刊論文

  更多相關(guān)文章： WRF/CHEM 氣溶膠直接氣候效應(yīng) 空氣質(zhì)量 天津

【摘要】：基于在線大氣化學(xué)模式WRF/chem,發(fā)揮其在線模式的優(yōu)勢(shì),假設(shè)是否考慮氣溶膠直接氣候效應(yīng)2種情況,模擬2015年全年天津地區(qū)氣象場(chǎng)和空氣質(zhì)量的演變,并與觀測(cè)實(shí)況比較,定量剖析天氣-氣溶膠-天氣-空氣質(zhì)量之間的相互關(guān)系.結(jié)果表明:2015年氣溶膠直接氣候效應(yīng)導(dǎo)致天津地面太陽(yáng)輻射下降27.42W/m~2,氣溫下降0.21℃,風(fēng)速減少1.1%,相對(duì)濕度增加1.4%,邊界層高度下降6.3%,氣象條件向不利于大氣污染擴(kuò)散方向轉(zhuǎn)變,由于上述作用的存在,2015年P(guān)M_(2.5)質(zhì)量濃度增加3μg/m~3,PM_(10)增加5.5μg/m~3,SO_2增加1.2μg/m~3,同時(shí)由于氣溶膠影響光化學(xué)條件導(dǎo)致的O_3質(zhì)量濃度減少1.4μg/m~3.氣溶膠直接氣候效應(yīng)形成天氣-氣溶膠-天氣-氣溶膠之間的循環(huán)作用并不是線性的,重污染天氣顯著強(qiáng)于清潔日和平均條件,從而導(dǎo)致重污染天氣空氣質(zhì)量的進(jìn)一步惡化.
[Abstract]:Based on the on-line atmospheric chemistry model WRF / schema, it is assumed that the direct climate effect of aerosol should be taken into account in order to give full play to the advantages of the online model. In 2015, the evolution of meteorological field and air quality in Tianjin was simulated and compared with the observed data. The relationship between weather, aerosol, weather and air quality is analyzed quantitatively. The results show that the direct climatic effect of aerosol in 2015 resulted in the decrease of surface solar radiation in Tianjin by 27.42 W / mm2. The temperature decreases by 0.21 鈩，

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