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 20 for “"Weather generator"”.
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An urban weather generator coupling a building simulation program with an urban canopy model
… their respective fields of study. The Urban Weather Generator (UWG) methodology presented in this thesis is a transformation of meteorological information from a weather station located in an open area to a particular urban location. The UWG methodology fulfils two important needs. First, it …
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Comparing A Simple Stochastic Weather Generator With Two Common Statistical Techniques For Gap-filling Daily Rainfall In Hawaiʻi
… complex terrain in Hawaiʻi. A stochastic weather generator (SWG) attempts to model the randomness and temporal persistence of rainfall and can be used as a gap-filling method. This study compares a simple two-state, first order Markov chain SWG for rainfall occurrence and amount, utilizing …
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Urban weather generator user interface development : towards a usable tool for integrating urban heat island effect within urban design process
Urban Weather Generator (UWG) is the urban design simulation tool that provides climate-specific advice for cityscape geometry and land use to assist the development of energy-efficient cities that are also thermally comfortable. The software enables urban designers to parametrically test built …
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Application of a K-Nearest Neighbour weather generator for simulation of historical and future climate variables in the Upper Thames River basin
… tools have been developed, including stochastic weather generators. A methodology for the simulation of historical and future climate data using a nonparametric K-Nearest Neighbour block resampling weather generator with perturbation is presented (KnnCAD Version 4). The proposed approach is …
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The Impact of Climate Change upon the Snowmelt Hydrology of an Upland UK Catchment
… baseline and projected (2050s medium emissions) weather series calculated using the UKCP09 weather generator. The results showed a large future reduction in both winter snow accumulation and the magnitude of snowmelt hydrology. However, the limited hydrological process representation of the model …
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The curious case of urban heat island : a systems analysis
… anthropogenic heat emission and the rural weather condition. The study builds upon the Urban Weather Generator (UWG), a numerical simulation program previously developed at MIT, incorporating such improvements as monthly disaggregation of ground sink temperature, Depart of Energy (DOE) …
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Effects of dynamic vegetation and topography on hydrological processes in semi-arid areas
… exhibit characteristic hillslope curvatures. A weather generator is used to create the long-term series of meteorological forcing. The linkages between terrain attributes and patterns of C4 grass productivity and water balance components are examined for three generic soil types: sand, loam, and …
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Comparison of simplified models of urban climate for improved prediction of building energy use in cities
… of low-energy buildings, yet, definition of weather boundary conditions during simulation of urban buildings suffers from a lack of data that accounts for the UHI effect. To overcome barriers preventing the use of more representative climate data in building thermal simulations, this thesis …
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Automatic calibration of an urban microclimate model under uncertainty
… upon the previously reported and updated Urban Weather Generator (UWG) to present a deep look into an existing urban district area in downtown Abu Dhabi (UAE) during 2017. Based on 30 candidate inputs covering the meteorological factors, urban characteristics, vegetation variables, and building …
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A Whole-Farm Planning Decision Support System for Preventive Integrated Pest Management and Nonpoint Source Pollution Control
… system (FLAME), an NPS module, which includes a weather generator, CLIGEN (Nicks et al. 1995), and an NPS distributed-parameter model, ANSWERS (Bouraoui, 1994), databases, a database engine and utility programs. The performance of the system was analyzed and performance enhancing features were …
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Study and prediction of the energy interactions between buildings and the urban climate
… obtained from measurements at operational weather stations, which are usually located in open areas outside of the city, typically at the airport. Therefore, air temperature measurements may not include the UHI effect. The UHI effect can have an impact on the energy consumption of …
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Mitigating risk of weather variability to agriculture through improved field workability predictions
Evolving weather-related risks, driven by climate change, will impose challenges on agricultural production systems at a global scale. However, the spatial heterogeneity of cropping practices, current climate, projected climate changes, and environmental factors (such as soil) will influence these …
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The Impact of Climate Change on Historic Interiors
… with future climate output, from both the UKCP09 weather generator and the Hadley model, where data has been downscaled. The high resolution climate output allows for projections of future indoor environment. Future temperature is projected to increase in unheated historic houses around the UK and …
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Interactive effects of n fertilization rate, cultivars and planting date under climate change on maize (zea mays l.) yield using crop simulation and statistical downscaling of climate models
… downscaling models such as stochastic weather generator (Long Ashton Research Station Weather Generator [LARS-WG]) and delta-based methods (Agricultural Model Intercomparison and Improvement Project (AgMIP) protocols) have not been applied locally to assess the impact of climate change. …
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A Systems Approach to Modelling the Effects of Climate Change on Agroforestry: A Case Study in Western Tanzania
… in sub-Saharan Africa as the magnitude of weather events increase in severity. Smallholder farmers in western Tanzania are potentially vulnerable to climate change impact as crops rely on precipitation as the only source of water. It is prudent to evaluate different modes of agricultural …
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The phosphorus transfer continuum under climate change
… data from the UK Climate Projections (UKCP09) Weather Generator tool) were used to design a laboratory experiment to examine whether changes in the future patterns of drying/re-wetting will affect the amount of soluble reactive phosphorus (SRP) solubilised from soil. This study is focused on …
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STATISTICAL MODELLING AND ANALYSIS FOR REGIONAL CLIMATE CHANGE
… to higher resolutions. Multivariate multisite weather generators (MMWGs) are appealing tools, as they allow for simulations of multiple realizations of climate change scenarios consistent with local-scale weather characteristics as well as large-scale climate change signal informed by GCMs. …
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A novel approach for large-scale flood risk assessments
… meteorological input data generated by a weather generator. Thereby, a virtual time series of climate data of 100 x 100 years was generated and served as input to RFM providing subsequent 100 x 100 years of spatially consistent river discharge series, inundation patterns and damage values. …
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Modelling impacts of climate variability and change on wheat cropping across New South Wales
… rainfall, and solar radiation at 894 weather stations evenly distributed across the NSW wheat belt. Wheat yields at shire level during 1922-2000 (data in some shires were not available in some years) across the NSW wheat belt were obtained from Fitzsimmons (2001). Statistical methods …
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Strategic Environmental Assessment for Municipal Water Demand Based on Climate Change
… al., 2018). Several studies have documented that weather variables drive water consumption in the short-term, and it enhances the accuracy of the prediction model when it is combined with socio-economic factors. However, the impact of climate change on the municipal water demand has yet to be …