IIA Institutional Repository

Aerosol radiative forcing over a high-altitude station Merak, in the trans-Himalayan region during advection of anthropogenic events from the Indo-Gangetic Plain

Show simple item record

dc.contributor.author Shantikumar, N. S
dc.contributor.author Bagare, S. P
dc.contributor.author Srivastava, A. K
dc.contributor.author Sohn, B. J
dc.contributor.author Song, H.-J
dc.contributor.author Larson, E
dc.date.accessioned 2014-10-22T09:53:18Z
dc.date.available 2014-10-22T09:53:18Z
dc.date.issued 2014-12
dc.identifier.citation Atmospheric Environment, Vol. 98, pp. 253–259 en
dc.identifier.uri http://hdl.handle.net/2248/6673
dc.description Restricted Access en
dc.description.abstract Advection of anthropogenic aerosols from the Indo-Gangetic Plain (IGP) and dust aerosols from distant deserts towards a high-altitude station Merak, in the trans-Himalayan region are reported during June–July 2011. In order to differentiate the advection event, aerosol optical properties were examined during aged background conditions at the site. During the aged background conditions, aerosol optical depth (AOD at 500 nm) and Angstrom exponent (α) at the station were ∼0.06 and 1.36, respectively which were increased to 0.13 and 1.62, respectively during the advection event. Further, a strong signature of fine-mode aerosol volume size distribution, dominated by absorbing aerosols, was observed during the advection event. The average atmospheric forcing during the aged background condition was found to be 0.57 Wm−2 (with corresponding heating rate of 0.05 Kday−1) and these results were enhanced to 2.58 Wm−2 (with corresponding heating rate of 0.22 Kday−1) during the advection event. The present study reveals that during the advection event, heating rate in the atmosphere was increased by about four times than the aged background condition. Such atmospheric warming in the region may influence the melting of the Himalayan glaciers and consequently it may effect the local atmospheric circulation. en
dc.language.iso en en
dc.publisher Elsevier B.V en
dc.relation.uri http://dx.doi.org/10.1016/j.atmosenv.2014.08.061 en
dc.rights © Elsevier B.V en
dc.subject Anthropogenic aerosols en
dc.subject Absorbing aerosols en
dc.subject Fine-mode en
dc.subject Atmospheric forcing en
dc.subject Heating rate en
dc.title Aerosol radiative forcing over a high-altitude station Merak, in the trans-Himalayan region during advection of anthropogenic events from the Indo-Gangetic Plain en
dc.type Article en


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Browse

My Account