Current, Temperature and Salinity Observations in the Terra Nova Bay Polynya Area

  • G. M. R. Manzella
  • R. Meloni
  • P. Picco
Conference paper


Long term (February - December 1995) time series of temperature, salinity and current have been analysed for the understanding of the main dynamics in the Terra Nova Bay Polynya area. Two main periods have been identified on the base of the observations: 1) from the ice-free sea conditions to the water column density homogenisation, and 2) the winter polynya period. During the first period the surface fresh water was transformed into High Salinity Shelf Water and sensible heat was delivered to the polynya surface. An analysis of the current-meter data during winter time indicated a transport of HSSW from the polynya area to the Ross Sea of about one Sverdrup.


Salty Water Katabatic Wind Salinity Observation Antarctic Continental Shelf Salinity Time Series 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Kurtz DD, Bromwich DH (1985) A recurring atmospherically forced polynya in Terra Nova Bay. In: Jacobs SS (ed) Oceanology of the Antarctic Continental Shelf. Antarct Res Ser 43:173–202, AGUCrossRefGoogle Scholar
  2. 2.
    Smith SD, Muench RD, Pease CH (1990) Polynyas and Leads: an overview of physical processes and environment. J Geophys Res 95: 9461–9479CrossRefGoogle Scholar
  3. 3.
    Pease CH (1987) The size of wind-driven coastal polynya. J Geophys Res 92: 7049–7059CrossRefGoogle Scholar
  4. 4.
    Bromwich DH, Kurtz DD (1984) Katabatic wind forcing of the Terra Nova Bay polynya. J Geophys Res 89: 3561–3572CrossRefGoogle Scholar
  5. 5.
    Stocchino C, Manzella GMR (1991) Analisi delle correnti marine di Baia Terra Nova ( Mare di Ross-Antartide ). CNR-ARIGE, pp 56Google Scholar
  6. 6.
    Jacobs S, Fairbanks GR, Horibe Y(1985) Origin and evolution of water masses near the Antarctic continental margin: evidence from H2180/ H2 160 ratio in sea water. In: Jacobs SS (ed) Oceanology of the Antarctic Continental Shelf. Antarct Res Ser 43:59–86, AGU, Washington, DCCrossRefGoogle Scholar
  7. 7.
    Topp R, Johnson M (1997) Winter intensification and water mass evolution from year long current meters in the northeast Polynya. J Marine Systems 10: 157–198CrossRefGoogle Scholar
  8. 8.
    Minnet PJ, Bignami F, Bohm E, Budeus G, Galbraith PS, Gudmansen P, Hopkins TS, Ingram RG, Johmson MA, Niebauer HJ, Ramseier RO, Schneider W (1997) A summary of the formation and seasonal progression of the northeast Polynya. J Marine Systems 10: 79–86CrossRefGoogle Scholar
  9. 9.
    Van Woert M (1998) Wintertime expansion and contraction of the Terra Nova Bay polynya (This Volume)Google Scholar
  10. 10.
    Gawarkoewicz G, Chapman DC (1995) A numerical study of dense water formation and transport on a shallow, sloping continental shelf. J Geophys Res 100: 4489–4507CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Italia, Milano 1999

Authors and Affiliations

  • G. M. R. Manzella
    • 1
  • R. Meloni
    • 2
  • P. Picco
    • 1
  1. 1.ENEA Marine Environment Research CentreLa SpeziaItaly
  2. 2.CNR Institute of Physical Oceanography, Forte S. TeresaPozzuolo di Lerici, La SpeziaItaly

Personalised recommendations