Characterization of Atmospheric aerosols over Indian Antarctic station during the Southern Hemispheric summer of 2008-2009.

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Brief Description (Abstract):

Aerosol optical depth (AOD), Aerosol black carbon (BC) mass concentrations (MB) and total mass concentration (MT) were measured over two Antarctic locations Maitri (70?45'52" S & 11?44'03" E, 123 m MSL) and Bharati (69? 24.41' S, 76? 11.72' E approximately at 35 m above sea level.) as a part of the 28th Indian Scientific Expedition to Antarctica during the southern hemispheric summer of 2008-2009. Our study showed relatively high values of MB and mass mixing ratio (FBC) over Maitri (~ 75 ng m-3 and 2 %) compared to that over Bharati (~ 13 ng m-3 and 0.2 %). At both locations, MB fall abruptly after the blizzard where the values reduce to as low as half of the pre-blizzard values. This BC scavenging by snow can lead to change in snow albedo and will have strong climate implications. The Angstrom exponent estimated from the spectral values of absorption coefficients are found to vary from 0.5 to 1 indicating that the BC over Antarctic region is mainly originating from fossil fuel burning

Status: Completed

Purpose: Temporal variations of physical and optical properties of aerosol were investigated from Indian stations Bharati and Maitri in the eastern coastal Antarctica during the 28th Indian Scientific Expedition to Antarctica (28 ISEA). Our results indicated that the temporal variations of aerosols are large at Maitri, and differed significantly from those of Bharati where the human interference is very less.

Presentation Format: Documentdigital

Distribution Format: unknown

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Supplemental Information:

TableDigital

Keyword(s): Earth Science-Atmosphere,

Place/Location(s): Antarctic, Maitri and Bharati,

Project: Characterization of Atmospheric aerosols over Indian Antarctic station during the Southern Hemispheric summer of 2008-2009,

Topic Category(s): ClimatologyMeteorologyAtmosphere,

Date(s): 2020-10-12 (Creation),

Resource Contact(s):
1. Name : Dr. S Suresh Babu
    Role : PrincipalInvestigator
    Phone : 8322525515
    E-Mail : ictd [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Distributor Contact(s):
1. Name : Mr. Sakthivel Samy V
    Role : Distributor
    Phone : +91-832-2525515
    E-Mail : vssamy [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Metadata Contact(s):
1. Name : Mr. Sakthivel Samy V
    Role : PointOfContact
    Phone : +91-832-2525515
    E-Mail : vssamy [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Extent:
Start Date : 2008-01-01
End Date   : 2009-12-31