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 61 for “"numerical weather prediction"”.
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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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Improving numerical weather prediction: error growth at the convective scale and speed
… communities, 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 …
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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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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
… Recent 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 …
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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 …
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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 …
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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
… designed 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 …
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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 …
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Processor Arrays for Problems in Computational Physics (Parallel)
… for the fast solution of equations occurring in numerical weather prediction and computational fluid dynamics on such systems are presented.
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Effects of the troposphere upon radio communications and implications for weather measurement
… measurements can then be assimilated into a numerical weather prediction model, such as that used by the Australia Bureau of Meteorology, to increase weather forecast capability. Importantly, this research develops novel techniques to relate the propagation of radio waves from weather data. …
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Impacts of Land-Atmosphere Interactions on Regional Convection and Rainfall
High resolution (1-10 km) numerical weather prediction (NWP) models face major challenges trying to improve representation of moist processes. In particular, simulating the interaction between the land surface and regional convection and rainfall is a source of uncertainties and presents three main …
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Weather forecasting : the next generation : the potential use and implementation of ensemble forecasting
… discusses ensemble forecasting, a promising new weather forecasting technique, from various viewpoints relating not only to its meteorological aspects but also to its user and policy aspects. Ensemble forecasting was developed to overcome the limitations of conventional deterministic weather …
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Estimation of catchment flood potential using satellite data
… satellite-derived fields with those produced by numerical weather prediction models and some aspects of the system are observed to benefit from this approach.
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A short-term ensemble wind-speed forecasting system for wind power applications
… This system uses a 21-member ensemble of the Weather Research and Forecasting Single-Column Model (WRF-SCM V3.1.1) to generate a probability distribution function (PDF) of 1-hour forecasts at a 90m height location in West/Central Illinois. The WRF-SCM ensemble was initialized by the 20 km …
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An observing system simulation experiment for soil moisture measurements from the SMAP radiometer
… has many applications in hydroclimatology, numerical weather prediction, flood forecasting, and human health. In this thesis, an observing system simulation experiment (OSSE) was used to study the error structure of radiometer measurements using two different retrieval algorithms. In an …
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Characterizing the Influence of Turbulence Intensity on Energy Production at the Vineyard Wind 1 Farm
… energy production (AEP) of a wind farm. In numerical models used to calculate farm power, turbulence intensity is treated as a constant input, though it has variability in the physical atmosphere. Wind conditions, such as turbulence intensity, can be modeled with numerical weather prediction …
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The evolution of coastal lows along the south coast of South Africa
… to aviation and shipping. Current global scale numerical weather prediction models do not forecast the intensity of these mesoscale systems well. A study of the coastal low is made with the aim of improving knowledge about the coastal low in general, and of strong coastal lows in particular, in …
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Probabilistic state estimation in regimes of nonlinear error growth
… as it is often called, is a key component of numerical weather prediction (NWP). Nearly all implementable methods of state estimation suitable for NWP are forced to assume that errors remain in regimes of linear error growth and retain distributions of Gaussian uncertainty, yet nonlinear …
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