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 10 of 10 for “"seasonal forecast"”.
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Assessing seasonal forecast use in Western Cape viticulture: a risk framework approach
… type of farming is under significant threat. Seasonal forecasts (SF) offer the potential to reduce farmer's vulnerability to climate risks by offering advanced climate information. This study aims to use a risk management framework to identify and compare the level of risk involved in using or …
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Integration of seasonal forecast information and crop models to enhance decision making in small-scale farming systems of South Africa
… decisions under such conditions. Integrated seasonal forecast information and crop models have been used as a tool that enhances decision making in some countries. Utilization of such an approach in South Africa can enhance decision making in climate variability management. The study …
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Model evaluation for seasonal forecasting over southern Africa
… broader effort of institutions toward improving seasonal forecasts over southern Africa. The primary objective is to understand where global models show shortcomings in their simulations, and how this impacts on their seasonal forecast skill. It is proposed that the skill of a model in simulating …
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Implementation and evaluation of the Pitman model in seasonal hydrological forecasting mode using the Kraai River catchment in Eastern Cape South Africa as a case study
Seasonal hydrologic extremes such as drought and floods have devastating impacts on human and natural systems (e.g. 2015-2017 Western Cape drought). Sentence has been reworded to: Therefore, the need for a reliable seasonal hydrologic forecast is significant and becoming even more urgent under …
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Spatial Downscaling and Forecasting of Atmospheric Variables over Complex Terrain Using Machine Learning
… objective includes spatial downscaling of the seasonal forecast of daily minimum temperature from 12 km to 250 m with one month lead. This study utilized ML models, Artificial Neural Networks (ANN), Random Forests (RF), and Convolutional Neural Networks (CNN), CNN-based encoder decoder to …
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Far-flung influences on midlatitude weather and climate: The stratospheric pathway
… Stratospheric nudging experiments in seven seasonal forecast models then enable specific attribution of energy extremes to the occurrence of the 2018 SSW. The results indicate a notable dependence on the lead time and nudging methodology in the relative risk of extremes.<p></p>
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General Circulation Model Regional Predictions Using MOS techniques: Seasonal Forecasting
… used to provide more accurate and coherent seasonal forecasts. However, they still show some limitations. Model Output Statistics (MOS) approaches may improve performance if observed and forecast values are available for a long record. This study investigates the skills of a MOS approach on …
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Impacts of ENSO on coastal South African sea surface temperatures
… is well documented and provides skill in the seasonal forecast of rainfall but little is known of the impact of ENSO on the ocean surrounding South Africa. The aim of this study is to assess the impact of ENSO on sea surface temperatures around the coast of South Africa and to calculate SST …
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The Skill Assessment of Seasonal Wind Prediction in South Africa
To assess the skill of seasonal wind prediction in South Africa, the period between 1983 and 2018 was studied, unless otherwise stated. A total of sixteen (16) sites were studied across South Africa to ensure that each region across the country was represented in the study. Seasonally, prediction …
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The Atlantic Ocean influence on hydroclimatic extremes: predictability and change from seasonal to multi-decadal time scales
L'abstract è presente nell'allegato / the abstract is in the attachment