Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jseaes.2011.07.016 |
Anthropogenic impact on the temporal variations of black carbon and surface aerosol mass concentrations at a tropical semi-arid station in southeastern region of India | |
Balakrishnaiah, G.1; Kumar, K. Raghavendra1; Reddy, B. Suresh Kumar1; Swamulu, C.1; Gopal, K. Rama1; Reddy, R. R.1; Reddy, L. S. S.1; Ahammed, Y. Nazeer2; Narasimhulu, K.3; KrishnaMoorthy, K.4; Babu, S. Suresh4 | |
通讯作者 | Reddy, R. R. |
来源期刊 | JOURNAL OF ASIAN EARTH SCIENCES
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ISSN | 1367-9120 |
出版年 | 2011 |
卷号 | 42期号:6页码:1297-1308 |
英文摘要 | Collocated measurements of black carbon (BC) and composite aerosol mass concentrations were continuously monitored at Anantapur (14.62 degrees N, 77.65 degrees E, 331 m asl), a tropical semi-arid station in southeastern region of India, using Aethalometer and a ten-channel Quartz Crystal Microbalance (QCM) cascade impactor, respectively during August 2009-July 2010. Diurnal and seasonal variations of BC and near surface aerosols in relation to changes in the regional meteorological conditions, frequency distribution of BC for different seasons, week days and weekend days effect on BC concentration and size distributions of near surface aerosols were observed. Also, using the HYSPLIT model, back-trajectories were studied to assess the sources for transported particles. Diurnal variation of BC showed two peaks, one in the morning and another in the evening, which were mostly related to the daily changes in the local boundary layer. BC concentrations were maximum during the winter (4.76 +/- 0.97 mu g m(-3)), and minimum concentrations were observed in the monsoon (1.44 +/- 0.26 mu g m(-3)). The total mass concentration exhibits a high value in the summer (48.89 +/- 2.57 mu g m(-3)) and it remains low in the monsoon (30.33 +/- 1.65 mu g m(-3)) period. The maximum BC mass fraction was found to be 9.4% in the winter and a minimum of 4.6% in the monsoon. (C) 2011 Elsevier Ltd. All rights reserved. |
英文关键词 | BC concentration Aerosol mass concentration Size-distribution Mass fraction HYSPLIT |
类型 | Article |
语种 | 英语 |
国家 | India |
收录类别 | SCI-E |
WOS记录号 | WOS:000296304800018 |
WOS关键词 | COASTAL STATION ; ATMOSPHERIC AEROSOLS ; SIZE DISTRIBUTION ; ABSORPTION ; SEA ; AETHALOMETER ; COEFFICIENT ; ENVIRONMENT ; INSTRUMENT ; PARTICLES |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/168974 |
作者单位 | 1.Sri Krishnadevaraya Univ, Aerosol & Atmospher Res Lab, Dept Phys, Anantapur 515055, Andhra Pradesh, India; 2.Yogi Vemana Univ, Dept Phys, Kadapa 516003, Andhra Pradesh, India; 3.Govt First Grade Coll, Dept Phys, Bellary 583101, Karnataka, India; 4.Vikram Sarabhai Space Ctr, Space Phys Lab, Trivandrum 695022, Kerala, India |
推荐引用方式 GB/T 7714 | Balakrishnaiah, G.,Kumar, K. Raghavendra,Reddy, B. Suresh Kumar,et al. Anthropogenic impact on the temporal variations of black carbon and surface aerosol mass concentrations at a tropical semi-arid station in southeastern region of India[J],2011,42(6):1297-1308. |
APA | Balakrishnaiah, G..,Kumar, K. Raghavendra.,Reddy, B. Suresh Kumar.,Swamulu, C..,Gopal, K. Rama.,...&Babu, S. Suresh.(2011).Anthropogenic impact on the temporal variations of black carbon and surface aerosol mass concentrations at a tropical semi-arid station in southeastern region of India.JOURNAL OF ASIAN EARTH SCIENCES,42(6),1297-1308. |
MLA | Balakrishnaiah, G.,et al."Anthropogenic impact on the temporal variations of black carbon and surface aerosol mass concentrations at a tropical semi-arid station in southeastern region of India".JOURNAL OF ASIAN EARTH SCIENCES 42.6(2011):1297-1308. |
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