Browsing Masters Degrees (Environmental Hydrology) by Title
Now showing items 40-59 of 103
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Development and evaluation of techniques for estimating short duration design rainfall in South Africa.
(1998)The objective of the study was to update and improve the reliability and accuracy of short duration (s 24 h) design rainfall values for South Africa. These were to be based on digitised rainfall data whereas previous ... -
Development of a climatic soybean rust model and forecasting framework.
(2009)Soybean rust (SBR), caused by the fungus Phakopsora pachyrhizi Syd., is a real threat to soybean crops in South Africa. Its ability to spread rapidly and its potential to severely reduce yields have earned it the reputation ... -
Development of a connectivity index to assess aquatic macroinvertebrate species vulnerability to thermal change : a case study in KwaZulu-Natal Province.
(2015)Connectivity of river systems is a critical ecological component affecting not only the integrity of aquatic systems but also freshwater species’ habitat, community structure, migration and other life activities such as ... -
Development of a geographic data model for hydrological modelling.
(2006)Hydrology is a multi-disciplinary science, and therefore derives data from diverse sources, with the data often of a spatio-temporal nature. A recent trend has been to combine these data with GIS, due to the data’s geographic ... -
Development of a spatial sugarcane transport infrastructure-planning model.
(2008)Due to the significant cost of transport in the sugar industry, a model, named FastTrack, was developed to investigate infrastructure planning opportunities. The model mathematically incorporates road construction and ... -
Development of techniques for the assessment of climate change impacts on estuaries : a hydrological perspective.
(2012)Global climate change is a naturally occurring phenomenon, influencing weather and climate patterns. However, the greatest cause for concern at present is the rate at which climate change is currently occurring. Natural ... -
A distributed sediment delivery ratio concept for sediment yield modelling.
(2004)Identifying areas of the hillslope that are most sensitive to soil erosion and contribute significantly to sediment yield is a primary concern in environmental protection and conservation. Therefore the ability to predict ... -
The effect of long-term fire frequencies on soil hydraulic properties in semi-arid savannas in Kruger National Park.
(2013)Soils are vital in supporting healthy and functioning ecosystems. Thus when soils are degraded, important ecosystem services are affected. In African savannas where fire is a key driver controlling ecosystem composition ... -
The effect of spatial resolution in remote sensing estimates of total evaporation in the uMgeni catchment.
(2014)The estimation of total evaporation plays a vital role in water resources monitoring and management, especially in water-limited environments. In South Africa, the increasing water demand, due to population growth and ... -
The effect of the Lions River floodplain on downstream water quality.
(2015)Wetlands provide important ecosystem services, including the purification of water. The uMngeni catchment is an important basin providing water to the cities of Pietermaritzburg and Durban, South Africa’s second largest ... -
Erosion dynamics at the catchment level : spatial and temporal variations of sediment mobilization, storage and delivery.
(2011)Soil material exported from river catchments by soil erosion is a key issue in environmental sustainability. Although soil erosion processes have been thoroughly investigated, their dynamics, specifically the continuity ... -
Estimation of the hydrological response to invasive alien plants in the upper Blyde River catchment.
(2003)The change in total evaporation through alteration of vegetative cover is a major influence on catchment hydrology. The transformation of grassland and scrub habitats to commercial tree plantations, as well as the uncontrolled ... -
Estimation of vapour pressure and solar radiation in South Africa.
(2004)Vapour pressure (interchangeably referred to as atmospheric humidity) and solar radiation data are, for different reasons, difficult data to obtain in South Africa. Relative humidity measuring instruments (from which vapour ... -
Estimation of water use efficiency of soybean (glycine max) for biodiesel production in KwaZulu-Natal.
(2020)Abstract available in pdf. -
Evaluating the effects of pre-packaging, packaging and varying storage environment treatments on the quality of avocados (Persea americana mill.)
(2013)Avocados are characterized as climacteric fruit and are vulnerable to rapid physiological deterioration. Maintaining avocado fruit quality requires proper integrated postharvest technologies. Thus, the primary aim of this ... -
Evaluation of a methodology to translate rainfall forecasts into runoff forecasts for South Africa.
(2002)South Africa experiences some of the lowest water resource system yields in the world as a result of the high regional variability of rainfall and runoff. Population growth and economic development are placing increasing ... -
The evaluation of pressure distribution and bulk density models for infield agriculture and forestry traffic.
(2006)There is evidence that soil compaction, through the use of mechanised equipment, causes detrimental effects to soil quality and reduces long-term productivity of soils. For economic reasons, farmers need to purchase larger, ... -
An evaluation of priority and fractional methods of water allocation in the Sand River catchment, South Africa.
(2014)The development and apportionment of water resources is a critical issue, both globally and locally in South Africa. This is particularly true in the development and allocation among states sharing watercourse systems. ... -
An evaluation of selected appropriate irrigation technologies for small-scale farmers.
(2001)South Africa lacks affordable irrigation technologies suited entirely to the needs of small-scale farmers. This is mainly due to the past emphasis on large, commercial farming technologies and the misunderstanding that ...