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 7 of 7 for “"Tropical temperate troughs"”.
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The South Indian Convergence Zone and relationship with rainfall variability in Mozambique
… to identify convective activity related to the tropical temperate troughs that collectively form the SICZ. Intraseasonal and inter-annual variability of these systems and their contribution to the anomalies of rainfall over Mozambique were explored using composite, correlation and regression …
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The analysis of tropical temperate trough-associated rainfall onsets and their influence on maize yields in the Maize Triangle, South Africa
Tropical temperate troughs (TTTs) that were associated with rainfall onsets in the Maize Triangle, South Africa, were analysed during the period from 1979 to 2018. Maize yields for agricultural regions within the Maize Triangle were also investigated to determine if the association of the …
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An investigation of the impacts of intra-seasonal rainfall variability on the maize growing season in Limpopo Province, South Africa from 1990-2014
… pressure systems over the mainland which act as tropical sources of moisture and the formation of cloud-bands associated with Tropical Temperate Troughs. There is a trend in late rainfall onset and earlier cessation leading to a shift and shortening of the rainy season. The shifted and shortened …
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Sea surface temperature-rainfall relationships and associated ocean-atmosphere coupling mechanisms in the southern African region
… SST anomalies along the east coast and increased tropical airflow. Consequently, moisture convergence and tropical convection are increased over the eastern interior near 20° to 25°S. South of Africa, positive SST anomalies generate surface heat flux anomalies, increasing instability and moisture …
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Vegetation feedback on the boundary layer climate of South Africa
… latitude. The loading pattern is consistent with tropical-temperate troughs and associated northwest (NW) cloud bands. This 40-day mode connects two 20-day modes over the Agulhas current and Angola, hence NW cloud bands are a slower terrestrial harmonic of the faster modes at either end. NDVI also …
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Wildfires in the Cape floristic region : exploring vegetation and weather as drivers of fire frequency
… characteristic of the southern-most extent of a tropical easterly wave low were correlated to frequency fire events in the western study areas. Fires in the eastern study areas were correlated to a synoptic state characteristic of a tropical temperate trough. Easterly wave lows are associated …
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Characteristics of precipitation and extreme precipitation events over the Drakensberg Mountain range in past and future climates
… the coastline, and it is usually induced by tropical temperate troughs, cold fronts, and the ridging highs. There is no agreement among simulations ensemble means on the annual precipitation projection over DMR. However, the ensemble means agreed on an increase in the intensity of normal …