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Impact of Two Intense Dust Storms on Aerosol Characteristics and Radiative Forcing over Patiala, Northwestern India
Joint Authors
Singh, Darshan
Sharma, Deepti
Kaskaoutis, Dimitris G.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-27
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Impact of dust storms on the aerosol characteristics and radiative forcing over Patiala, northwestern India has been studied during April-June of 2010 using satellite observations and ground-based measurements.
Six dust events (DE) have been identified during the study period with average values of Aqua-MODIS AOD550 and Microtops-II AOD500 over Patiala as 1.00±0.51 and 0.84±0.41, respectively while Aura-OMI AI exhibits high values ranging from 2.01 to 6.74.
The Ångström coefficients α380–870 and β range from 0.12 to 0.31 and 0.95 to 1.40, respectively.
The measured spectral AODs, the OPAC-derived aerosol properties and the surface albedo obtained from MODIS were used as main inputs in SBDART model for the calculation of aerosol radiative forcing (ARF) over Patiala.
The ARF at surface (SRF) and top of atmosphere (TOA) ranges from ∼−50 to −100 Wm−2 and from ∼−10 to −25 Wm−2, respectively during the maximum of dust storms.
The radiative forcing efficiency was found to be −66 Wm−2AOD−1 at SRF and −14 Wm−2AOD−1 at TOA.
High values of ARF in the atmosphere (ATM), ranging between ∼+40 Wm−2 and +80.0 Wm−2 during the DE days, might have significant effect on the warming of the lower and middle atmosphere and, hence, on climate over northwestern India.
American Psychological Association (APA)
Sharma, Deepti& Singh, Darshan& Kaskaoutis, Dimitris G.. 2012. Impact of Two Intense Dust Storms on Aerosol Characteristics and Radiative Forcing over Patiala, Northwestern India. Advances in Meteorology،Vol. 2012, no. 2012, pp.1-13.
https://search.emarefa.net/detail/BIM-511273
Modern Language Association (MLA)
Sharma, Deepti…[et al.]. Impact of Two Intense Dust Storms on Aerosol Characteristics and Radiative Forcing over Patiala, Northwestern India. Advances in Meteorology No. 2012 (2012), pp.1-13.
https://search.emarefa.net/detail/BIM-511273
American Medical Association (AMA)
Sharma, Deepti& Singh, Darshan& Kaskaoutis, Dimitris G.. Impact of Two Intense Dust Storms on Aerosol Characteristics and Radiative Forcing over Patiala, Northwestern India. Advances in Meteorology. 2012. Vol. 2012, no. 2012, pp.1-13.
https://search.emarefa.net/detail/BIM-511273
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-511273