Laser heterodyne system at Maitri, Antarctica

Access URI: http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF1681840914&userType=user&freeTextValue=Laser+heterodyne+system+at+Maitri%2C+Antarctica

Brief Description (Abstract):

The ozone depletion in general and ozone hole phenomenon over Antarctica during spring in particular has generated a surge of interest in the measurement of ozone using various techniques. A High-Tech Laser Heterodyne System using a 1 GHz Acousto-optic spectrometer as back end has been designed and developed at National Physical Laboratory, New Delhi to monitor ozone and other trace species in the atmosphere. The Laser Heterodyne System has been successfully operated at Maitri Lo obtain ozone line spectra at 1043.1775 cm with an ultra high spectral resolution. The line spectra thus obtained with high spectral resolution in trun has been used to get vertical profiles of ozone in the atmosphere using inversion technique developed at NPL for Antarctic conditions. A liquid nitrogen plant was also installed at Maitri. In the present communication the salient feature of the Laser Heterodyne System, Acousto-optic spectrometer, liquid nitrogen plant and results obtained are discussed in detail

Status: Completed

Purpose: To study of minor constituents in the atmosphere is of vital interest to understand the structure of troposhere and stratosphere.

Presentation Format: Documentdigital

Distribution Format: unknown

Distribution Format Version: unknown

Supplemental Information:

TableDigital

Keyword(s): Earth Science-Atmosphere,

Place/Location(s): Maitri, Antarctic,

Project: Laser heterodyne system at Maitri,

Topic Category(s): ClimatologyMeteorologyAtmosphere,

Date(s): 2020-09-18 (Creation),

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

Extent:
Start Date : 1996-01-01
End Date   : 1997-12-31