Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 30 for “"Mozambique Channel"”.
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The general hydrography of the Mozambique Channel
… South Equatorial Current via two sources: the Mozambique Current, and secondly, the East Madagascar Current. In spite of their global significance surprisingly few observations have been made in these source regions. In March 2000 a multidisciplinary cruise, the first one in 25 years, the …
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The Mozambique Channel eddies : characteristics and mechanisms of formation
… anticyclonic eddies being generated within the Mozambique Channel. The eddies were identified using a newly designed eddy detection algorithm. The algorithm has shown that cyclonic eddies appeared to be more ubiquitous than the anticyclonic and had a single mode sizedistribution. On the other …
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Environmental influences on banana shrimps of the Sofala Bank, Mozambique Channel
The Sofala Bank in the western Mozambique Channel is an essential habitat for shallow-water penaeid shrimps. It supports an important multi-sector and -species fishery, with Fenneropenaeus indicus and Metapenaeus monoceros (banana shrimp) being the two main target species. Over the past decade this …
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Investigating the biogeochemistry of the Mozambique Channel thermocline using an optimum multiparameter analysis approach
… complex thermocline circulation occurs in the Mozambique Channel, the highly dynamic region between the coast of south eastern Africa and Madagascar, owing to the confluence of tropical and subtropical regimes in the southwestern Indian Ocean. Our current understanding of the Mozambique Channel …
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Investigating Mesoscale, Submesoscale, and Mixing Ocean Dynamics in the Mozambique Channel Using Seismic and Simulation Datasets
… the detail of subsurface flows in the Mozambique Channel. The Mozambique Channel is an ideal laboratory to study mesoscale-submesoscale interactions using seismics: here water masses from the Indian and Atlantic ocean collide and interact, driving sharp thermohaline gradients and …
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The influence of ocean ridges on the circulation to the south of the Mozambique channel and Madagascar
The Mozambique Channel and the region south of Madagascar are dominated by high variability of the oceanic flow due to the ubiquitous presence of mesoscale eddies. The bottom topography of this region has several shallow ridges. The water flowing through the Mozambique Channel propagates southwards …
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Upper ocean variability and tropical cyclones in the South West Indian Ocean
… Chagos Thermocline Ridge (SCTR) and the Mozambique Channel. In the first part of the study, the variability of Tdy and BLT in the South West Indian Ocean, focused on the SCTR region and their relationships with tropical cyclones are investigated. It is shown that rapid cyclone …
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Dynamics, interactions and ecosystem implications of mesoscale eddies formed in the southern region of Madagascar
… coast, then from its origin crosses the southern Mozambique Channel and arrives at the African coast where it dissipates. By tracking eddies and combining their trajectories with drifter data and satellite remote sensing observations of ocean colour, it is shown that chlorophyll-a rich waters are …
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Numerical modelling of Tropical Cyclone Dineo and its rainfall impacts over north-eastern South Africa
Widespread flooding over parts of Mozambique, Zimbabwe, Malawi, Botswana as well as north-eastern South Africa was experienced in February 2017. The flooding was associated with Tropical Cyclone Dineo that was generated in the Mozambique Channel on 12 February 2017 and made landfall over the …
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A numerical simulation of tropical storm Chedza over south-eastern Africa
Widespread flooding over parts of Malawi, Mozambique, and Madagascar occurred in January 2015. An impact assessment by the World Bank indicated huge damage to property, infrastructure, and agriculture over several regions in south-eastern Africa. The flooding was associated with tropical storm …
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Variability of coastal upwelling south of Madagascar
… a poleward eastern boundary flow coming from the Mozambique Channel. This intrusion of Mozambique Channel warm waters could result in an asynchronicity in seasonality between upwelling surface signature and upwelling favourables winds. The second part of the thesis focuses on the interaction …
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The dynamics and physical processes of the Comoros Basin
… Basin emulate those found further south in the Mozambique Channel. The presence of AAIW north of Madagascar confirmed that this water mass enters the Comoros Basin from the east while the presence of North Atlantic Deep Water showed that this water mass is capable of spreading northward over the …
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Modelling the oceanic circulation in the Delagoa Bight
… Bight region, near the southwestern end of the Mozambique Channel. The model is initially configured at a horizontal resolution of 1/10° (9.9km) over the domain 30.1-43°E,22.13-30.8° S. Subsequent configurations nested an inner grid of resolution 1/30° (3.3km) over the region …
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Seasonality of the Agulhas Current with respect to near- and far-field winds
… by a southward propagation of signals via the Mozambique Channel, suggesting that these models are too barotopic in their response to the winds. Findings from this study elucidate the role of near-field winds and baroclinic processes in determining the seasonality of the Agulhas Current.
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Variability of summer rainfall over southwestern Madagascar
… with low atmospheric pressure over the southern Mozambique Channel. Neutral years having anomalously high (low) frequency of wet days are marked by northwesterly (southeasterly) moisture flux anomalies at 850 hPa over southwestern Madagascar.
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Intra-seasonal oscillations of convection over southern Africa
… advection of moisture from the southern Mozambique Channel and over the warm Agulhas Current into South Africa. Post-wet phase anomaly composites do not show much similarity with pre-cursor anomaly composites. This implies that the 20-30 day ISO may be a half cycle of 40-60 days which is …
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Modelling the mesoscale variability in the greater Agulhas Current system using hybrid coordinate Ocean model
… turn is influenced by the flow dynamics in the Mozambique Channel and south of Madagascar. Mesoscale eddies drifting from these source regions to the Agulhas Current play an important role, and the connection between the Agulhas Current and the respective source regions provides a link to …
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Sensitivity of tropical cyclones in the Southwest Indian Ocean to the topography of Madagascar
… causing TCs to track further westward into Mozambique when the mountains are either flattened or removed completely. Additionally, the SEA shows considerably more TCs generated in the far west of the basin, which are stronger than CNTRL and tend to follow a more zonal track towards and onto …
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Taxonomy and ecology of South African reef corals
… coral fauna of South Africa and Southern Mozambique, including also material from the Atoll Bassas da India in the Mozambique channel. The study of coral communities on Northern Natal coral reefs revealed major differences in the nature of the reefs and the community structure of the reef …
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Downstream evolution of ocean properties and associated fluxes in the Greater Agulhas Current System: Ad hoc Argo experiments and modeling
… evolution of cyclonic eddies across the Southern Mozambique Chanel and the downstream evolution of the Agulhas Current was investigated using Argo floats, in combination with output from ocean general circulation reanalysis models. Two dedicated experiments were undertaken in April and July 2013, …
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