Some Features of Aerosols and Pre-cursor Gases Observed over Antarctic Region during 24th Indian Antarctic Expedition.

Access URI: http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF687435215&userType=user&freeTextValue=Some+Features+of+Aerosols+and+Pre-cursor+Gases+Observed+over+Antarctic+Region+during+24th+Indian+Antarctic+Expedition.

Brief Description (Abstract):

The aerosols and pre-cursor gases data sets have been utilized to investigate the aerosol optical, physical and radiative properties, and their interface with simultaneously measured gases. Data over the Oceanic region has been collected on ship?s front deck. The daily mean AOD at a characteristic wavelength of 500 nm was found to be 0.042 with an average Angstrom coefficient of 0.24, revealing abundance of coarse-mode particles. Interestingly, the January fluxes were found to be less by about 20 per cent as compared to those in February. The average short-wave direct radiative forcing due to aerosols showed cooling at the surface with an average value of -0.47 W/m2 during the study period. The total column ozone increased from about 252 DU around 38o S to about 312 DU at 70o S, showing a gradual increase in ozone with increasing latitude.

Status: Completed

Purpose: The study of aerosols is important for various reasons. For example, (i) aerosols influence the climate directly by altering the radiative energy transfer through their optical properties, and (ii) space-time variability of aerosol in homogeneities are needed for environmental research.

Presentation Format: Documentdigital

Distribution Format: unknown

Distribution Format Version: unknown

Supplemental Information:

TableDigital

Keyword(s): Earth Science-Atmosphere,

Place/Location(s): Maitri, Antarctic,

Project: Some Features of Aerosols and Pre-cursor Gases Observed over Antarctic Region during 24th Indian Antarctic Expedition,

Topic Category(s): ClimatologyMeteorologyAtmosphere,

Date(s): 2020-10-05 (Creation),

Resource Contact(s):
1. Name : Dr. P C S Devara
    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 : 2004-01-01
End Date   : 2005-12-31