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 19 of 19 for “"ground temperature"”.
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Air-ground temperature exchange
… based on the assumption that the exchange of temperature between the air and ground surface remains constant. However, secular changes in boundary-layer factors can generate anomalous ground temperatures. This dissertation is an investigation of factors that cause separation of air and ground …
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Real-Time Atmospheric compensation and surface temperature estimates from Satellite using Neural Networks
… additional assets to estimate the atmospheric temperature and water vapor profile so that an estimate of the atmospheric processes can be obtained and a correction developed to improve the thermal detection. In particular, the use of existing meteorological geostationary assets is crucial to …
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The Effect of Geothermal Heat Pumps on Subsurface Flow and Contaminant Transport
Geothermal or ground source heat pumps (GSHPs) are among the growing renewable energy technologies used for heating and cooling of buildings. However, little work has been done to investigate their geo-environmental effects within the subsurface. This research uses FEFLOW software, to simulate heat …
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Remote sensing techniques for geothermal investigation and monitoring in New Zealand
… results are presented from a related shallow ground temperature study conducted to investigate diurnal, seasonal and meteorological effects on temperatures in active thermal ground and results from a precursory assessment of SPOT-l satellite multispectral imagery obtained over the Waiotapu …
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Periglacial landforms and processes in the southern Kenai Mountains, Alaska
… a string bog, and various for111S of patterned ground such as sorted circles, sorted polygons, earth hummocks, sorted steps, sorted stripes, and small ice-wedge polygons.</p> <p>Ground temperature measurements indicate that permafrost recently existed in the area but is no longer present. The …
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Habitat Selection, Dispersal and Detectability of Cobblestone Tiger Beetles (Cicindela marginipennis Dejean) along the Genesee River, New York
… the same for both models (no covariate and with ground temperature), the results for site-level detectability showed similar detection probabilities for cobblestone tiger beetles in 2008 and 2009, even though the number of sites surveyed and the number of visits per cobble bar differed between …
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The architectural impact of using ground-source heat pumps in commercial buildings in Las Vegas
… on the design and long term performance of ground-coupled heat pump systems over a fixed period of time. The results are applied to a commercial office building in order to assess the net impact of combining various energy efficiency strategies. The conclusion of the comprehensive study is …
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Application de la télédétection à l'analyse de la variabilité climatique des régions boréales et subarctiques du Canada et à la validation du modèle régional canadien du climat
… (NDVI vegetation activity index, land-surface temperature Ts), as well as indicators chosen for their robustness.The latter parameters (length of the growing season, annual growing degree-days, and ecotone displacement) were selected so as to minimize problems related to instrumental drift and …
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Modelling and Experimental Characterization of Solar-Assisted Ground Source Heat Pump Systems with and without Thermal Energy Storage for Cold Climates
… and reduce building carbon footprint, the use of ground source heat pumps (GSHPs) is gaining traction as a cost-competitive, reliable, and environmentally friendly solution. However, in cold climates, like Canada, heating loads are significantly greater than cooling loads, which makes the amount …
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Temperature Disparity Comparisons for Campus Heat Vulnerabilities
… effects of climate change like heightened temperatures, extreme weather, and wildlife loss, and to this day, still continues to experience these consequences. Because of this, people at various levels of society – global, country, state, city, community – need to prepare the next steps …
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Dynamic thermal response of buildings resulting from heating and cooling interruptions
Transient modelling of heat fluxes and temperatures in structures was conducted to examine the effect of various characteristics on the temperature response during unusual operating and extreme weather conditions. The analytical model was validated using published experimental data and numerical …
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What to plant and where to plant it; Modeling the biophysical effects of North America temperate forests on climate using the Community Earth System Model
… management. We calculated the change in annual temperature and energy balance associated with afforestation with either needle leaf evergreen trees (NET) or broadleaf deciduous trees (BDT) and between forests with high and low leaf-area indices (LAI). Afforestation from crops to forests resulted …
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Exploring sensitivities of latent heat parameterizations using a coupled, integrated hydrologic model
… Precipitation, runoff, condensation and groundwater flow are also significant members of the hydrologic cycle, but it is evapotranspiration that links water in the subsurface to water on the land surface or in the atmosphere. Hydrologic models use parameterizations to represent the …
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Estimation of turbulent surface heat fluxes using sequences of remotely sensed land surface temperature
… of the planetary boundary layer (e.g. temperature and water vapor content), ultimately influencing the presence and growth of low level clouds and precipitation. Nevertheless, there is currently no network of in situ sensors that can map these fluxes globally. Recently a number of …
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Examining the impact of heathland restoration via felling on carabid diversity in the Purbeck Heaths National Nature Reserve
… or >17 years (old). Environmental variables (ground temperature, soil moisture, and relative humidity) and vegetation characteristics were also recorded. Sampling was carried out monthly from May to August 2024, and data were analysed using generalised models (additive and linear) for species …
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A Study of the Effects of Scintillation on Digital Satellite Communication Systems
… diameter, path elevation angle, frequency, ground temperature and humidity) and yields statistics that compare extremely well with existing prediction models as well as measured scintillation data (up to the fourth moment). Important applications of the new model are for simulating the …
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A numerical protocol for death-time estimation
A body's axial temperature distribution at death was experimentally demonstrated by the author to predict the postmortem temperature plateau (PMTP), which is known to affect the measured core temperature value and hence death-time estimation. Yet today's methods of death-time estimation apply only …