Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.scitotenv.2016.05.056 |
Direct radiative forcing properties of atmospheric aerosols over semi-arid region, Anantapur in India | |
Kalluri, Raja Obul Reddy1; Gugamsetty, Balakrishnaiah1; Kotalo, Rama Gopal1; Nagireddy, Siva Kumar Reddy1; Tandule, Chakradhar Rao1; Thotli, Lokeswara Reddy1; Ramakrishna, Reddy Rajuru1,2; Surendranair, Suresh Babu3 | |
通讯作者 | Kotalo, Rama Gopal |
来源期刊 | SCIENCE OF THE TOTAL ENVIRONMENT
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ISSN | 0048-9697 |
EISSN | 1879-1026 |
出版年 | 2016 |
卷号 | 566页码:1002-1013 |
英文摘要 | This paper describes the aerosols optical, physical characteristics and the aerosol radiative forcing pertaining to semi-arid region, Anantapur for the period January 2013-December 2014. Collocated measurements of Aerosol Optical Depth (AOD) and Black Carbon mass concentration (BC) are carried out by using MICROTOPS II and Aethalometer and estimated the aerosol radiative forcing over this location. The mean values of AOD at 500 nm are found to be 0.47 +/- 0.09, 0.34 +/- 0.08, 0.29 +/- 0.06 and 0.30 +/- 0.07 during summer, winter, monsoon and post-monsoon respectively. The Angstrom exponent (alpha(380-1020)) value is observed maximum in March (1.25 +/- 0.19) and which indicates the predominance of fine - mode aerosols and lowest in the month of July (0.33 +/- 0.14) and may be due to the dominance of coarse-mode aerosols. The diurnal variation of BC is exhibited two height peaks during morning 07: 00-08: 00 (IST) and evening 19: 00-21: 00 (IST) hours and one minima noticed during afternoon (13: 00-16: 00). The highest monthly mean BC concentration is observed in the month of January (3.4 +/- 1.2 mu g m(-3)) and the lowest in July (1.1 +/- 0.2 mu g m(-3)). The estimated Aerosol Direct Radiative Forcing (ADRF) in the atmosphere is found to be +36.8 +/- 1.7 W m(-2), +26.9 +/- 0.2 W m(-2), +18.0 +/- 0.6 W m(-2) and +18.5 +/- 3.1 W m(-2) during summer, winter, monsoon and post-monsoon seasons, respectively. Large difference between TOA and BOA forcing is observed during summer which indicate the large absorption of radiant energy (36.80 W m(-2)) which contributes more increase in atmospheric heating by similar to 1 K/day. The BC contribution on an average is found to be 64% and is responsible for aerosol atmospheric heating. (C) 2016 Elsevier B.V. All rights reserved. |
英文关键词 | Aerosol optical depth BC concentration Angstrom exponent value Radiative forcing Anantapur |
类型 | Article |
语种 | 英语 |
国家 | India |
收录类别 | SCI-E |
WOS记录号 | WOS:000381060900095 |
WOS关键词 | OPTICAL-PROPERTIES ; BLACK CARBON ; WAVELENGTH DEPENDENCE ; SUN PHOTOMETER ; URBAN LOCATION ; SOUTHERN INDIA ; SATELLITE DATA ; DEPTH ; STATION ; VARIABILITY |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/196227 |
作者单位 | 1.Sri Krishnadevaraya Univ, Dept Phys, Aerosol & Atmospher Res Lab, Anantapur 515003, Andhra Pradesh, India; 2.Srinivasa Ramanujan Inst Technol, Anantapur 515701, Andhra Pradesh, India; 3.Vikram Sarabhai Space Ctr, Space Phys Lab, Trivandrum 695022, Kerala, India |
推荐引用方式 GB/T 7714 | Kalluri, Raja Obul Reddy,Gugamsetty, Balakrishnaiah,Kotalo, Rama Gopal,et al. Direct radiative forcing properties of atmospheric aerosols over semi-arid region, Anantapur in India[J],2016,566:1002-1013. |
APA | Kalluri, Raja Obul Reddy.,Gugamsetty, Balakrishnaiah.,Kotalo, Rama Gopal.,Nagireddy, Siva Kumar Reddy.,Tandule, Chakradhar Rao.,...&Surendranair, Suresh Babu.(2016).Direct radiative forcing properties of atmospheric aerosols over semi-arid region, Anantapur in India.SCIENCE OF THE TOTAL ENVIRONMENT,566,1002-1013. |
MLA | Kalluri, Raja Obul Reddy,et al."Direct radiative forcing properties of atmospheric aerosols over semi-arid region, Anantapur in India".SCIENCE OF THE TOTAL ENVIRONMENT 566(2016):1002-1013. |
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