沙漠与绿洲气象
沙漠與綠洲氣象
사막여록주기상
DESERT AND OASIS METEOROLOGY
2011年
6期
32-36
,共5页
钟玉婷%刘新春%何清%范子昂%王敏仲%郭志忠
鐘玉婷%劉新春%何清%範子昂%王敏仲%郭誌忠
종옥정%류신춘%하청%범자앙%왕민중%곽지충
黑碳气溶胶%变化特征%夏秋季%乌鲁木齐
黑碳氣溶膠%變化特徵%夏鞦季%烏魯木齊
흑탄기용효%변화특정%하추계%오로목제
black carbon aerosol%variation characteristics%summer and autumn%Urumqi
利用乌鲁木齐2009年6-11月黑碳气溶胶（BC）质量浓度观测资料，结合国内外其它地区的观测结果，给出了鸟鲁木齐市夏秋季节BC浓度变化特征。结果表明：（1）乌鲁木齐市夏秋季大气BC日平均浓度为3843±3095ng·m^-3，变化范围为688～15181ng·m^-3；BC浓度变化趋势与API变化趋势接近，相关系数为0．55。（2）夏秋两季BC浓度的日变化存在明显的峰值区和谷值区，峰值区主要出现在上午和夜间，谷值区出现在凌晨和下午；周BC平均浓度的变化特征为，周一至周四呈总体降低趋势，星期四达到一周的最低值，周五开始增加，但总体变化幅度不大，工作日和周末差别不大。（3）夏季BC瞬时低值浓度远高于秋季，秋季BC污染重于夏季；鸟鲁木齐城市BC浓度低于国内外部分城市，明显高于较为洁净的边远地区。
利用烏魯木齊2009年6-11月黑碳氣溶膠（BC）質量濃度觀測資料，結閤國內外其它地區的觀測結果，給齣瞭鳥魯木齊市夏鞦季節BC濃度變化特徵。結果錶明：（1）烏魯木齊市夏鞦季大氣BC日平均濃度為3843±3095ng·m^-3，變化範圍為688～15181ng·m^-3；BC濃度變化趨勢與API變化趨勢接近，相關繫數為0．55。（2）夏鞦兩季BC濃度的日變化存在明顯的峰值區和穀值區，峰值區主要齣現在上午和夜間，穀值區齣現在凌晨和下午；週BC平均濃度的變化特徵為，週一至週四呈總體降低趨勢，星期四達到一週的最低值，週五開始增加，但總體變化幅度不大，工作日和週末差彆不大。（3）夏季BC瞬時低值濃度遠高于鞦季，鞦季BC汙染重于夏季；鳥魯木齊城市BC濃度低于國內外部分城市，明顯高于較為潔淨的邊遠地區。
이용오로목제2009년6-11월흑탄기용효（BC）질량농도관측자료，결합국내외기타지구적관측결과，급출료조로목제시하추계절BC농도변화특정。결과표명：（1）오로목제시하추계대기BC일평균농도위3843±3095ng·m^-3，변화범위위688～15181ng·m^-3；BC농도변화추세여API변화추세접근，상관계수위0．55。（2）하추량계BC농도적일변화존재명현적봉치구화곡치구，봉치구주요출현재상오화야간，곡치구출현재릉신화하오；주BC평균농도적변화특정위，주일지주사정총체강저추세，성기사체도일주적최저치，주오개시증가，단총체변화폭도불대，공작일화주말차별불대。（3）하계BC순시저치농도원고우추계，추계BC오염중우하계；조로목제성시BC농도저우국내외부분성시，명현고우교위길정적변원지구。
Based on Black Carbon aerosol （BC） observations in Urumqi from June to November of 2009, as well as the data from other areas, the BC distribution was studied. The results showed that the daily average concentration of BC was 3 843±3 095 ngom^-3 with the range of 688-15 181 ng·m^-3 during summer and autumn in Urumqi, and the maximum was 22 times as much as the minimum. The variation trend of BC was close to API with the correlation coefficient of 0.55. In addition, the daily variation of BC concentration was characterized by obvious peak and valley during summer and autumn with highest concentration at forenoon and nighttime and lowest at wee hours and afternoon. The weekly variation of BC concentration decreased from Monday to Thursday with the lowest in Thursday and increases from Friday with a little tendency, while the difference between working day and weekend is unobvious. The third, the proportion of BC concentration less than 2500 ng ·m^-3 was 64% and 36% respectively in summer and autumn, and the pollution in autumn was worse than that in summer. The last, BC concentration of Urumqi was lower compared with some cities at home and abroad, but higher than some clean remote areas. It was 12.9 -17.2 times higher than that at Waliguan Global Atmospheric Baseline Observatory and 6.4×10^3 times higher than South Pole.
