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 93 for “"weather prediction"”.
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Astrodynamics of the Next Generation Space Weather Prediction Mission
<p>Accurate prediction of the solar wind properties, interplanetary magnetic field direction and various space weather phenomena becomes ever more important as our dependence on Earth orbiting spacecraft increases. Different solar wind drivers can lead both to enhancements and losses of …
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Adaptive observations : idealized sampling strategies for improving numerical weather prediction
… additional observations are likely to improve weather forecasts of interest. The observation network could be adapted for a wide range of forecasting goals, and it could be adapted either by allocating existing observations differently or by adding observations from programmable platforms to …
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High resolution solar observations in the context of space weather prediction
Space weather has a great impact on the Earth and human life. It is important to study and monitor active regions on the solar surface and ultimately to predict space weather based on the Sun's activity. In this study, a system that uses the full power of speckle masking imaging by parallel …
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Improving numerical weather prediction: error growth at the convective scale and speed
… to increase the efficiency of Numerical Weather Prediction. Because parameterizations often occupy a significant portion of the total execution time the first focus of this work is to provide a methodology to transform parameterizations into algorithms that provide the same output at a …
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A lightning threat index for South Africa using numerical weather prediction data
… and forestry industries. There is a need for prediction techniques to ensure the protection of people and property. In this dissertation, a new lightning threat index (LTI) is proposed for southern Africa. The aim of the LTI is to identify the areas where lightning is likely to occur during …
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Excitation of the inertio-gravity waves in a numerical weather prediction experiment.
Massachusetts Institute of Technology. Dept. of Meteorology. Thesis. 1966. M.S.
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Information Theory Analysis of the Solar Wind Magnetic Structures for Space Weather Prediction
<p>Forecasting space weather at Earth is highly complicated, because of the limited measurements of the dynamic processes in the Sun that span multiple temporal, spatial, and energy-scales. The solar wind is a highly structured, multi-scale, evolving plasma and consists of coronal mass ejections …
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Improving hydrometeorologic numerical weather prediction forecast value via bias correction and ensemble analysis
… temperature and precipitation forecasts. Weather plays a dominant role for energy companies relying on forecasts of watershed precipitation and temperature to drive reservoir models, and forecasts of temperatures to meet energy demand requirements. Extraordinary precipitation events and …
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Distributed quantitative precipitation forecasts combining information from radar and numerical weather prediction model outputs
… advances in precipitation physics, Numerical Weather Prediction (NWP) models, availability of high quality remotely sensed measurements, and data dictated forecasting tools, offer the opportunity of improvements in this area. Investigative studies were performed to quantify the value of …
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Optimization of Spacecraft Formations about Lagrange Points for the Next Generation Space Weather Prediction Mission
… proof of concept for the Next Generation Space Weather Prediction Mission, a multi-spacecraft mission at various libration points whose objective is to forecast Space Weather hazards with a 12day warning time. This thesis deals with the design and control of orbits of spacecraft formations at …
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Passive millimeter-wave retrieval of global precipitation utilizing satellites and a numerical weather prediction model
… model, composed of a mesoscale numerical weather prediction (NWP) model (MM5), a two-stream radiative transfer model (TBSCAT), and electromagnetic models for icy hydrometeors (F([lambda])), to be used as a global precipitation ground-truth for evaluating alternative millimeter-wave …
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Forecasting wind power for the day-ahead market using numerical weather prediction models and computational intelligence techniques
… forecasting tools use a combination of Numerical Weather Prediction (NWP) forecasts and observations to estimate the power output of a single wind turbine or a whole wind farm. Although NWP systems can model meteorological processes that are related to large changes in wind power, these might be …
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Assimilation of Meteosat Second Generation (MSG) satellite data in a regional numerical weather prediction model using a one-dimensional variational approach
… for high resolution regional scale numerical weather prediction (NWP) models. The non-hydrostatic forecast model COSMO (COnsortium for Small scale MOdelling) in the ARPA-SIM operational configuration is used to provide background fields. Only clear sky observations over sea are processed. An …
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Atmospheric radiative transfer in multiple scattering conditions. Application to NWP models.
… for fast RT codes used in climate and weather prediction models. Cirrus clouds cover permanently 30% of the Earth's surface, representing an important contribution to the Earth-atmosphere radiation balance. The work has been focussed on the development of the RT model LBLMS. The model, …
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A multivariate autoregressive model for limited area weather forecasting
… of limited-area research and operational weather prediction models. We give a complete description of the implementation of the multivariate autoregressive research model. This includes a FORTRAN program and three order selection routines. We conclude with a discussion on possible …
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Sensitivity of model output statistics on the Lorenz system
… of model output statistics (or MOS) in numerical weather prediction to lead times and parameters. In order to study MOS in an idealized setting, I use the simplified Lorenz system of differential equations as the physical model to explore the sensitivity of linear MOS in this non-linear system. …
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Processor Arrays for Problems in Computational Physics (Parallel)
… solution of equations occurring in numerical weather prediction and computational fluid dynamics on such systems are presented.
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Support of latency-sensitive space exploration applications in future space communication systems
… of satellite-based observations for accurate weather forecasting, particularly how latency limits the amount of data available for assimilation at weather prediction centers. On the other hand, the second case study explores how human science operations on the surface of Mars dictate the …
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Change of representation in machine learning, and an application to protein structure prediction
… induction algorithms are known for making predictions from databases in well-studied domains, learning systems still perform poorly in many difficult real-world domains, such as weather prediction or financial risk analysis. Two characteristics of real-world domains are inadequately …
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Probabilistic category learning and memory systems functioning in those at-risk for alcohol abuse.
… in high-risk drinking college students using the Weather Prediction Task (WPT). We recruited 20 high-risk and 44 low-risk participants. We hypothesized that high-risk drinkers would perform worse on the WPT, as well as a reversal learning component of the WPT. We also examined the relationship …
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