Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1063/1.5033251 |
Long term change in Atmospheric Dust Absorption, Dust Scattering and Black Carbon Aerosols Scattering Coefficient Parameters over Western Indian Locations | |
Satoliya, Anil Kumar1; Vyas, B. M.1; Shekhawat, M. S.2 | |
通讯作者 | Satoliya, Anil Kumar |
会议名称 | 2nd International Conference on Condensed Matter and Applied Physics (ICC) |
会议日期 | NOV 24-25, 2017 |
会议地点 | Bikaner, INDIA |
英文摘要 | The first time satellite space based measurement of atmospheric black carbon (BC) aerosols scattering coefficient at 550nm (BC SC at 550nm), dust aerosols scattering and dust aerosols extinction coefficient (DSC at 550nm and DEC at 550nm) parameters have been used to understand their long term trend of natural and anthropogenic aerosols behavior with its close association with ground based measured precipitation parameters such as Total Rain Fall (TRF), and Total Number of Rainy Days (TNRD) for the same period over western Indian regions concerned to the primary aerosols sources of natural activities. The basic objective of this study is an attempt to investigate the inter-correlation between dust and black carbon aerosols loading characteristics with a variation of rainfall pattern parameters as indirect aerosols induced effect i.e., aerosols-cloud interaction. The black carbon aerosols generated by diverse anthropogenic or human made activities are studied by choosing of measured atmospheric BC SC at 550nm parameter, whereas desert dust mineral aerosols primarily produced by varieties of natural activities pre-dominated of dust mineral desert aerosols mainly over Thar desert influenced area of hot climate and rural tropical site are investigated by selecting DSC at 550nm and DEC at 550nm of first semi-urban site i.e., Udaipur (UDP, 24.6 degrees N, 73.35 degrees E, 580m above surface level (asl)) situated in southern Rajasthan part as well as over other two Great Indian Thar desert locations i.e., Jaisalmer (JSM, 26.90 degrees N, 69.90 degrees E, 220m asl)) and Bikaner (BKN, 28.03 degrees N, 73.30 degrees E, 224m asl) located in the vicinity of the Thar desert region situated in Rajasthan state of the western Indian region. The source of the present study would be collection of longer period of monthly values of the above parameters of spanning 35 years i.e., 1980 to 2015. Such types of atmospheric aerosols-cloud monsoon interaction investigation is helpful in view of understanding their direct and indirect aerosols active role of optical absorption and scattering of solar light radiation at useful wavelength 550nm as well as heating of clouds over least explored region, i.e., the Thar desert region and also away from less dust dominated influenced provinces for longer period. The analysis of the above the result would also give a clear scientific evidence of alteration in enhancement in DSC at 550nm and DEC at 550nm and BC SC at 550nm variables with simultaneous corresponding reduction in the five yearly mean precipitation activity parameters such as TRF and TNRD. It is quite evident that anthropogenic BC aerosols activity are showing the significant increasing trend at all three locations, but it is more prominent over central Thar Desert influenced regime, i.e., JSM and BKN relative to semi-urban region i.e., UDP. The systematic increasing pattern of average monthly mean value of DSC at 550nm and DEC at 550nm or increasing aerosol loading have been revealed from acquiring their lowest value in January month and the highest values in July and retained with the broad peak values in pre-monsoon months. Subsequently, their respective values reduce sharply downward from August to December onwards. The mountain value of dust aerosols parameters, i.e., DSC at 550nm and DEC at 550nm are systematically enhanced toward from UDP to BKN and then maximized at JSM. It is clearly obvious fact that the following ascending order of desert aerosols loading influenced activity in different areas has been recorded, i.e., JSM> BKN>UDP. Several other interesting features of the earth-climate change implication in reference to the altering nature of reduction of precipitation parameter pattern with simultaneous observed elevated dust aerosol and BC aerosol loading have been also noticed in the course of present investigation. Overall reduction in rainfall pattern effect with increasing of dust aerosols loading or vice versa are seen more pronounced over JSM and lees prevalence over UDP. The more detailed investigations about other interesting results of Aerosols-Indian monsoon over western Indian locations are also discussed thoroughly in this paper. |
英文关键词 | Atmospheric BC aerosols Desert aerosols Rainfall parameters |
来源出版物 | 2ND INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2017) |
ISSN | 0094-243X |
出版年 | 2018 |
卷号 | 1953 |
EISBN | 978-0-7354-1648-2 |
出版者 | AMER INST PHYSICS |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | India |
收录类别 | CPCI-S |
WOS记录号 | WOS:000436313004049 |
WOS关键词 | GLOBAL DISTRIBUTION ; CLIMATE ; OCEAN ; MODIS ; FINE |
WOS类目 | Physics, Applied ; Physics, Condensed Matter |
WOS研究方向 | Physics |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/307344 |
作者单位 | 1.ML Sukhadia Univ, Dept Phys, Udaipur 313001, India; 2.Govt Engn Coll, Dept Phys, Bikaner 334001, India |
推荐引用方式 GB/T 7714 | Satoliya, Anil Kumar,Vyas, B. M.,Shekhawat, M. S.. Long term change in Atmospheric Dust Absorption, Dust Scattering and Black Carbon Aerosols Scattering Coefficient Parameters over Western Indian Locations[C]:AMER INST PHYSICS,2018. |
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