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 “"Energy Balance Model"”.
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Climate sensitivity study with energy balance models
… sensitivity of the Earth's climate is studied by modeling past climatic variations with two-dimensional seasonal energy balance model. This thesis consists of two parts. The first part is a study of the interaction between the seasonal cycle and the small ice cap instability, which is a possible …
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Optimizing cycling power
In this study we determine a viable bioenergetic model for power allocation during a cycling race. Various models have been proposed to address power allocation in races with two models rising above others: the Morton-Margaria Three Tank model and the Skiba Energy Balance model. The energy balance …
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Ice Island Deterioration in the Canadian Arctic: Rates, Patterns and Model Evaluation
… Validation of operational surface ablation models was also carried out with in-situ microclimate measurements. The Canadian Ice Service iceberg model under-predicted surface ablation by 68%, while a more complete energy-balance model developed for ice islands improved output accuracy (7.5% …
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An analysis of energy balance in a helicon plasma source for space propulsion
… standard plasma diagnostics, and a simple global energy balance model of the system to determine greater details regarding the losses incurred during regular operation. From this it may be possible, by comparing the heat flux on the tube to the applied magnetic field profile, to gain some insight …
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Quantifying supraglacial debris thickness at local to regional scales
… debris thickness is a key control on the surface energy balance of debris-covered glaciers, which are common in temperate mountain ranges around the world. As such, it is an important input variable to the sorts of models that are used to understand and predict glacier change, which are essential …
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The prediction of the temperature of small clear streams
<p>A theoretical energy balance model was used to predict water temperatures in small clear streams which have limited heat transfer due to ground water flow. The model was designed for application to coastal streams in central California to determine reservoir release policies that would improve …
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The Hydrological System of Storglaciären, Sweden: Integrating Modelling with Observations
… in glacier hydrology that integrate numerical models with detailed empirical data collected over one/multiple summer(s). This is especially true for physically based models whose main advantage lies in ability to predict basal water pressure because of its significance for ice dynamics, thus …
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A zonally and annually averaged study of potential early Martian atmospheres
… one-dimensional, radiative-convective climate models capable of considering only a single solar zenith angle, typically chosen to represent a global and annual average. Such models are hence not well suited for considering meridional variations in the temperature profile, which are affected by …
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Modelling the Thermal Dynamics of Polygonal Soil Structures in the Permafrost of the Lena Delta, Northern Siberia
… Arctic. In this thesis, an existing permafrost model including conductive heat transfer and the phase change of water is extended to simulate the thermal dynamics of polygonal soil structures in an Arctic tundra wetland in Northern Siberia. A two-dimensional model formulation in cylindrical …
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Offshore floating solar with compressed air storage as a baseload power plant for a data center
… thesis presents the conceptual design, technical modeling, and economic analysis of a novel offshore floating solar energy system integrated with Compressed Air Energy Storage (CAES) for reliable baseload power delivery to coastal data centers. The system architecture is modular, consisting of …
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Coupled Behaviour of Soil and Plant Water Dynamics: Effects of Vegetation Cover, Soil Type and Fire Disturbance
… also play a crucial role in linking water, energy and carbon cycles, as they are underlying plant transpiration, latent heat transport between land surface and atmosphere as well as plant photosynthesis. The future trajectories of soil and plant water dynamics will also shape the …
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Supraglacial lake evolution on the Greenland Ice Sheet
… in 2008, and through the use of a numerical model to predict lake inputs. The surface energy balance model used is a more advanced numerical model than has been used in previous study and model results are mixed. Conclusions are drawn from model and observed results, and suggest that with …
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Hydrological Analysis of Nicaragua in a Changing Climate
… from the Operational Simplified Surface Energy Balance model (SSEBop), and Global Forest Watch forest fraction. Four pairs of basins were evaluated along the north and east of Nicaragua between 2003-2019. Findings determined basins on the east and north experienced increasingly dry …
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Ablation on the ice cap of King George Island (Antarctica) : an approach from field measurements, modelling and remote sensing
… ice cap compiled. The work focuses on surface energy balance modelling based on data from three summer field campaigns in the years 1995/96, 1997/98 and 1999/2000 at sites in different altitudes on the ice cap. Large-scale atmospheric weather patterns were derived from NOAA-IR composites and …
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The Mass balance modelling of Spitzbergen glaciers
This thesis deals with a series of mass balance studies carried out on two glaciers in north-west Spitsbergen, Midre Lovenbreen and Austre Broggerbreen, using an energy balance model. A general description of glaciers, including their classification and the manner in which their surfaces may be …
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Remotely Sensed Estimates of Evapotranspiration in Agricultural Areas of Northwestern Nevada: Drought, Reliance, and Water Transfers
… Monthly ET was estimated using a land surface energy balance model, Mapping EvapoTranspiration at high Resolution with Internalized Calibration (METRIC), using Landsat 5 and Landsat 7 imagery combined with local atmospheric water demand estimates. Estimates of net ET were created by subtracting …
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Reversibility of Sea Ice and Climate under Global Change
… sea ice area and volume. Using an autoregressive model of sea ice and numerical simulation with a global dynamic-thermodynamic sea ice model that traces first-year and multiyear, we show that the sea ice mean state, variability, and sensitivity to forcing may be related to sea ice age. Ice age …
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Oceanic planetary waves in the coupled ocean-atmosphere system
… condition to the inclusion of an atmospheric energy balance model. The effects on the vertical structure and phase speed of the first modes are negligible. However, it is shown that for the latter case an unstable mode appears. This growing mode, of decadal period and growth rate, has no …
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On the Interaction of Natural Convection and Mechanical Ventilation
… thesis, we use experimental observations of a model system to gain insight into the fundamental flow mechanics, which informs the development of models for the flow. In chapter 2, we identify a new over-ventilated regime where the total flux from natural convection is less than the ventilation …
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