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Aerosol characterization: Comparison between measured and modeled surface radiative forcing over Bay of Bengal

Kumar, S and Devara, PCS (2012) Aerosol characterization: Comparison between measured and modeled surface radiative forcing over Bay of Bengal. Remote Sensing Letters, 3 (5). pp. 373-381.

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Under the aegis of Indian Space Research Organisation's ongoing climate change research programme, Integrated Campaign for Aerosols, gases and Radiation Budget (ICARB) was undertaken from 27 December 2008 to 30 January 2009 over the Bay of Bengal (BoB). Since measurements of this sort have not been made near the eastern-most coastline of BoB, a cruise was planned to have observations along the boundaries of the BoB. Here we report the columnar aerosol optical thickness (AOT), total water vapour (TWV), total ozone column (TOC) and aerosol direct surface forcing calculations by using a pair of handheld Microtops II (Ozonometer and Sunphotometer) and a gimbal-mounted short-wave (SW) pyranometer, with high temporal resolution (5 minutes). The presence of high aerosol loading and absorbing aerosols over the coastal and Andaman regions resulted in a diurnal mean aerosol surface radiative forcings of ?24 and ?35Wm?2, respectively. These results are in good agreement with radiative transfer model estimations.

Item Type: Article
Additional Information: Copyright of this article belongs to Taylor & Francis.
Uncontrolled Keywords: Absorbing aerosol; Aerosol characterization; Aerosol loading; Aerosol optical thickness; Bay of Bengal; Handhelds; High temporal resolution; Pyranometers; Radiation budget; Radiative forcings; Radiative transfer model; Research programmes; Short waves; Sun photometers; Surface forcing; Total ozone column; Water vapour, Atmospheric radiation; Climate change; Ozone; Radiative transfer; Space research, Atmospheric aerosols, aerosol composition; aerosol property; atmospheric modeling; coast; comparative study; marine atmosphere; ozone; radiation budget; radiative forcing; research program; resolution; water vapor, Bay of Bengal; Indian Ocean
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 04 Jan 2014 19:28
Last Modified: 04 Jan 2014 19:28

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