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Fronts and mesoscale variability in the southern Indian Ocean as inferred from the TOPEX/POSEIDON and ERS-2 altimetry data
Kostianoy, A.G.; Ginzburg, A.I.; Lebedev, S.A.; Frankignoulle, M.; Delille, B. (2003). Fronts and mesoscale variability in the southern Indian Ocean as inferred from the TOPEX/POSEIDON and ERS-2 altimetry data. Oceanology 43(5): 632-642
In: Oceanology. Maik Nauka/Springer: Moscow. ISSN 0001-4370, more
Peer reviewed article  

Available in  Authors 
    VLIZ: Open Repository 231436 [ OMA ]

Keyword
    Marine

Authors  Top 
  • Kostianoy, A.G.
  • Ginzburg, A.I.
  • Lebedev, S.A.
  • Frankignoulle, M., more
  • Delille, B., more

Abstract
    Charts of sea level anomalies (SLA) based on the combined altimetry data from the TOPEX/POSEIDON and ERS-2 satellites, as well as the corresponding charts of the sea surface dynamic heights (constructed by the superposition of SLA distributions over the climatic dynamic topography) and the temperature gradients at the ocean surface on the basis of the satellite Multi-Channel Sea Surface Temperature (MCSST) data, were used to study the mesoscale variability related to the fronts in the Southern Indian Ocean (30°-60°S, 20°-150°E). An analysis of these three types of satellite information for the central weeks of each month during the period from 1997 to 1999 allowed us to distinguish zones of enhanced meandering (eddy formation) within the basin under study, as well as the contributions of individual fronts and their interaction to the regional mesoscale variability. The problems of the correlation between the intensity of mesoscale variability and peculiarities of the local bottom topography and seasonal/interannual variability of mesoscale dynamics are addressed.

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