Upper Ocean Geostrophic Current and Volume Transport Across Meridional Transects in the Indian Sector of Southern Ocean.

Access URI: http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF-1168855871&userType=user&freeTextValue=Upper+Ocean+Geostrophic+Current+and+Volume+Transport+Across+Meridional+Transects+in+the+Indian+Sector+of+Southern+Ocean.

Brief Description (Abstract):

The investigation carried out to understand the upper ocean circulation along two meridional transects (Track-1 and Track-2) using XCTD profiles. Noise factor removed from the each profile manually and further interpolation carried out to get final product. In general, sea surface temperature and sea surface salinity at 1 m depth decreasing southward with salinity fluctuation seen south of 46?S. Along Track-1 thermal structure of temperature and salinity showing sinking and rising of isotherms and isohalines, respectively making wave like pattern between 35?S -39?S, where ocean current are opposite. South of 39?S, isotherms are more inclined and water is mixing with different physical properties.

Status: Completed

Purpose: The objective of the paper is to use the data collected along two meridional transects to investigate the circulation current system and geostrophic volume transport. The distribution of SST and SSS at 1 m depth from the XCTD profiles showing varying pattern. The SST remains constant up to 39?S and decreasing towards south from 21?C to 0?C. The distribution of SSS varies along ship track from 28.9 psu to 33.3 psu. From the Track-1 it was understood that warmer water moves southwards on top and colder water extend northward in the deeper depth.

Presentation Format: Documentdigital

Distribution Format: unknown

Distribution Format Version: unknown

Supplemental Information:

TableDigital

Keyword(s): Earth Science-Marine Science,

Place/Location(s): Southern Ocean, Antarctic,

Project: Upper Ocean Geostrophic Current and Volume Transport Across Meridional Transects in the Indian Sector of Southern Ocean,

Topic Category(s): InlandWaters,

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

Resource Contact(s):
1. Name : Dr. S M Pednekar
    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 : 2007-01-01
End Date   : 2008-12-31