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 28 for “"Rainy seasons"”.
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Prevalence of Enteric Bacteria Associated with Diarrhea in Children Less than Five Years of Age and Their Sensitivity to Antibiotics in Unguja Island- Zanzibar
… bacteria was high in urban than rural areas and rainy seasons reported high prevalence of enteric bacteria compare to dry seasons. The children at the age between 7months to 2 years old were at high risk to be infected with enteric pathogenic bacteria than any other age groups. The pathogenic …
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Rainfall variability characteristics over the East African coast.
… dry and wet spell characteristics during the two rainy seasons. The atmospheric and ocean conditions associated with the rainfall variability are also considered. Extreme occurrences of rainfall variable can result in droughts and floods which in turn may lead to socioeconomic disruptions. East …
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A model study of the interannual variability of Tanzanian rainfall
… and the western tropical Indian Oceanduring the rainy seasons (October to December (OND) and March to May (MAM)) isassessed against data derived from National Centre for Environmental Prediction (NCEP)model and Global Precipitation Climatology Project (GPCP). The vector windsclimatology at 850hPa …
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Time-lapse electrical resistivity tomography applied to cave sustainability (Barbados) and groundwater exploration (Saint Lucia)
… we conduct 2D ERT surveys during dry and rainy seasons to evaluate the potential and feasibility of groundwater exploration next to the Thomazo River in the Fond D'Or watershed in Saint Lucia. Interpretation of the ERT data sets reveals a lens of a porous rock that has a high potential to …
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Estudo da atividade reprodutiva de hyla truncata Izecksohn, 1959 (Anura, Hylidae) na Restinga de Maricá, RJ
… weights underwent considerable changes in the seasons. No marked annual cycle was observed , however some specimens with the highest values of IGS, IOV and ICA were basically found in the rainy season of the two years studied. No inverse correlation was obtained between ovary and fat body …
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Mechanisms for the wet and dry years over Eritrea during the summer rainfall season
… circulation. This study focuses on the summer rainy season of June, July and August (JJA). It examines atmospheric and oceanographic mechanism patterns associated to summer rainfall anomalies. The investigation mainly concentrates on wet and dry spells that occurred over Eritrea during the …
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Analyzing and modelling of flow transmission processes in river-systems with a focus on semi-arid conditions
… being a losing river at the dry and beginning of rainy seasons to become a losing/gaining (mostly losing) river at the middle and end of rainy seasons. A new semi-distributed channel transmission losses model was developed, which was based primarily on the capability of simulation in very …
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Capturing Stormwater Nitrate and Phosphate with Sorptive Filter Media
… average 26% of the influent phosphate over three rainy seasons. Retention was best for larger filtered volume events, but negative removal was observed for events with smaller filtered volume and low influent phosphate concentration. Non-routine maintenance improved the hydraulic performance of …
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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
… requirement for successful maize growing seasons. The variability of intra-seasonal rainfall characteristics such as onset, cessation and wet and dry spells threatens maize yields in Southern Africa. Previous studies have focused on the impacts of seasonal rainfall totals on maize yields. …
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Elucidating Temporal Variability in Organic Matter Sources and Cycling in Tropical Rivers
… dominating OM composition during the dry and rainy seasons, respectively. The age of lignin exported by the Mekong is consistently young (produced within the last 15 years), and it cycles amidst POC of varying ages, ranging from contemporary during the rainy season, to over 3,000 years old …
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Benchmarks for the future: long-term vegetation change derived form palaeoecological techniques in West-Coast Renosterveld, South Africa
… an increase in drought periods and shorter rainy seasons with important consequences for the vegetation of the CFR. There is limited information regarding the response of Renosterveld to past climate change and land-use disturbance and there is much debate about the pristine composition of …
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Influence of climate change on flood and drought cycles and implications on rainy season characteristics in Luvuvhu River Catchment
… on flood and drought cycles and implications on rainy season characteristics in Luvuvhu River Catchment (LRC) in Limpopo of South Africa. Extreme weather events resulting in hazards such as floods and droughts are becoming more frequent due to climate change. Extreme events affect rainy season …
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Assessing dry spell and wet day frequencies over southern Africa during the summer rainy season
… by wet and dry events occurring within rainy seasons as knowledge of the frequency of such events is able to inform agricultural activity. Dry spells (pentads having <5 mm) and moderate wet days (10-30 mm) over southern Africa were assessed using high resolution (0.05◦) Climate Hazards …
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Impact of rainfall events on suspended sediment load and water quality and links to sediment management in Dzindi River Catchment
… five months, respectively, in two consecutive rainy seasons. The periods were from October 2012 to March 2013 and December 2013 to April 2014. The samples were collected from selected cross-sections at four sites along Dzindi River. Physical water quality parameters or water quality indicators …
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Zooming in on human-wildlife coexistence: primate community responses in a shared agroforest landscape in Guinea-Bissau
… Baboons largely relied on forest, and in the rainy season their distribution was severely constrained to areas away from human land uses. The highly restricted spatial occurrence of king colobus and baboons is likely the result of intensive hunting pressures particularly in the recent past. In …
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Rainfall variability and availability of water resources in the last 40 years in Western Bahia, Brazil
… and a reduction in river flows, both for dry and rainy seasons. Seven sub-regions in Western Bahia were identified with a potential risk of conflicts over water use. These regions experienced a 150-fold increase in the irrigated area since 1990s and 90% from 2010 to 2018. In recent years, these …
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Future crop suitability assessment and the integration of Orphan crops into Kenya's food systems
… under RCP8.5 and 4.5 respectively, and rainy seasons becoming more intense and shorter. The suitability index of maize is projected to have a slight increase (20%) during the long rains, by the end of the century under RCP8.5. Along the RCP4.5 pathways, there is a greater increase in …
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Terminalia ivorensis and human health: the impact of Terminalia ivorensis on biomarkers of cyto- and genotoxicity in human cells in vitro.
… Fresh TI samples were collected in the dry and rainy seasons from Asakakra Kwahu, Eastern region of Ghana, and a TI sample that had been stored at room temperature for 4 years was also used. The phytochemicals were isolated either by sequential Soxhlet extraction using petroleum ether, …
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Estimation of groundwater recharge along a precipitation gradient for Savannah aquifers in Namibia with special emphasis on the impact of vegetation
… Tsumeb and Waterberg were collected during the rainy season from 2017 to 2018, while Kuzikus/Ebenhaezer samples were collected between 2014 and 2015. Groundwater samples were collected before, during and after rainy seasons from 2016 to 2017. A deuterium tracer was inserted at different plots …
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Remote Sensing & GIS for Land Cover/ Land Use Change Detection and Analysis in the Semi-Natural Ecosystems and Agriculture Landscapes of the Central Ethiopian Rift Valley
… Feed availability in ASLNP is scarce even during rainy seasons. Especially the open woodlands are subject to overgrazing. Such shortage forces the inhabitants to cut trees for charcoal making to buy animal feed and non-food consumables. While more than 95% of the inhabitants in the park expanded …
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