Articles by Keyword: Mesoscale Eddies

Search results for Mesoscale Eddies

We found 10 results for you
  1. Effects of deep-sea eddies on the northern KwaZulu-Natal shelf, South Africa

    Effects of deep-sea eddies on the northern KwaZulu-Natal shelf, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    This paper describes the westward movement of a cyclonic eddy across the Mozambique Channel and the subsequent south-westward propagation of the eddy along the east coast of South Africa and its interaction with the shelf. A hydrographic survey on 13...
  2. The ‘suitcase hypothesis’: Can entrainment of meroplankton by eddies provide a pathway for gene flow between Madagascar and KwaZulu-Natal, South Africa?

    The ‘suitcase hypothesis’: Can entrainment of meroplankton by eddies provide a pathway for gene flow between Madagascar and KwaZulu-Natal, South Africa?

    Item type: Journal Article • Journal: African Journal of Marine Science
    Similarities in the marine fauna found off the coasts of southern Madagascar and KwaZulu-Natal Province (KZN), South Africa, led to the development of the ‘suitcase project,’ with the aim of establishing whether eddies that form off southern Madagascar may package...
  3. Estimation of minimum temperature on a mesoscale

    Estimation of minimum temperature on a mesoscale

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Working relationships between mean minimum temperatures and environmental factors by means of regression techniques were established and used to estimate temperatures at gridpoints. These estimated temperatures were then used with a computer package program to map the isotherms on a...
  4. Oualidia lagoon, Morocco: an estuary without a river

    Oualidia lagoon, Morocco: an estuary without a river

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    This study describes some physical oceanography features of an estuary maintained by fresh groundwater inflow. The mesoscale variability of currents, temperature and salinity are documented from moored current meter observations of 12 days duration at three stations. Current speeds exceeded...
  5. Shelf currents, lee-trapped and transient eddies on the inshore boundary of the Agulhas Current, South Africa: their relevance to the KwaZulu-Natal sardine run

    Shelf currents, lee-trapped and transient eddies on the inshore boundary of the Agulhas Current, South Africa: their relevance to the KwaZulu-Natal sardine run

    Item type: Journal Article • Journal: African Journal of Marine Science
    The existence and strength of the annual KwaZulu-Natal (KZN) sardine run has long been a conundrum to fishers and scientists alike ― particularly that the sardine Sardinops sagax migrate along the narrow Transkei shelf against the powerful, warm Agulhas Current...
  6. Dynamics and role of the Durban cyclonic eddy in the KwaZulu-Natal Bight ecosystem

    Dynamics and role of the Durban cyclonic eddy in the KwaZulu-Natal Bight ecosystem

    Item type: Journal Article • Journal: African Journal of Marine Science
    The semi-permanent Durban Eddy is a mesoscale, lee-trapped, cold-core cyclonic circulation that occurs off the east coast of South Africa between Durban in the north and Sezela, some 70 km to the south. When present, strong north-eastward countercurrents reaching 100...
  7. Circulation of shelf waters in the KwaZulu-Natal Bight, South Africa

    Circulation of shelf waters in the KwaZulu-Natal Bight, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    Ship-based acoustic Doppler current profiler (S-ADCP) technology, used in survey mode, has enabled near- synoptic views of the in situ 3-D current field in the KwaZulu-Natal (KZN) Bight to be elucidated for the first time. Data acquired by the research...
  8. Observations and mechanisms of upwelling in the northern KwaZulu-Natal Bight, South Africa

    Observations and mechanisms of upwelling in the northern KwaZulu-Natal Bight, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    New in situ time-series data were acquired by two ADCP moorings placed on the shelf off Richards Bay on the east coast of South Africa at depths of 25 m and 582 m between October 2009 and August 2010. The...
  9. Contrasting hydrography and phytoplankton distribution in the upper layers of cyclonic eddies in the Mozambique Basin and Mozambique Channel

    Contrasting hydrography and phytoplankton distribution in the upper layers of cyclonic eddies in the Mozambique Basin and Mozambique Channel

    Item type: Journal Article • Journal: African Journal of Marine Science
    Hydrographic data collected in cyclonic eddies in the Mozambique Channel and Basin revealed notable differences in temperature and salinity at a depth of 100 m, the upper mixed layer, the nitracline depths, and vertical distribution of chlorophyll-a (Chl-a). Differences in...
  10. Transport and transformation of surface water masses across the Mascarene Plateau during the Northeast Monsoon season

    Transport and transformation of surface water masses across the Mascarene Plateau during the Northeast Monsoon season

    Item type: Journal Article • Journal: African Journal of Marine Science
    The Mascarene Plateau lies in the south-west Indian Ocean between the islands of Mauritius and the Seychelles Bank, and is characterised by a series of shallow banks separated by deep (>1 000 m), narrow channels. The plateau acts as an...