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 “"Climatic effects"”.
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Technology and climatic effects in aggregate production functions
… to simultaneously identify weather and technical effects. Interest in this problem is based from arguments made by Griliches (1963, 1964) who maintained that increases in agricultural productivity have been due to technology variables in the form of scale economies, public research expenditures, …
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Aerosol processes in polar regions : from formation to climatic implications
… but locally their effect may be opposite. Their climatic effects are determined by their concentration, size distribution and chemical composition as well as their vertical and spatial distribution and the underlying surface type. Currently, the largest uncertainties in estimating our future …
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Neogene and Quaternary Events Shaped Diversification and Speciation in Bhutanese Rheophilic Fishes of the Family Nemacheilidae (Cypriniformes) and Sisoridae (Siluriformes)
… resulting uplift produced major ecological and climatic effects, that in turn drove the diversification of biodiversity. As a result, the QTP is designated as a global biodiversity hotspot particularly vulnerable to cumulative climatic effects, including shrinking distributions, declining …
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Volatiles as a link between planetary interiors and the environment
… the petrologic sources, eruptive transfer, and climatic effects of volatiles released during emplacement of the Siberian large igneous province. In an extreme variation on terrestrial volatile cycling, I also explore the erosional history of Titan as recorded in valley networks carved by rivers …
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Climate Change and Indigenous Peoples in Latin America
<p>This research focused on the detrimental effects of climate change on indigenous peoples in Latin America. Indigenous peoples throughout the region tend to live subsistence livelihoods, which tie them closely to their land and the surrounding environment. This close relationship often means that …
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Advanced controllers for building energy management systems. Advanced controllers based on traditional mathematical methods (MIMO P+I, state-space, adaptive solutions with constraints) and intelligent solutions (fuzzy logic and genetic algorithms) are investigated for humidifying, ventilating and air-conditioning applications.
… 2 output system subject to external disturbances/effects. The three inputs are heating, cooling and humidification, and the 2 outputs are room air temperature and relative humidity. The external disturbances consist of climatic effects and other stochastic influences. The study is carried out …
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The Tambora project: an atmospheric simulation and historical evaluation of the Mount Tambora eruption and its impacts on global climate and society (1815-18)
… simulations that will better represent the climatic effects from the 1815 eruption and the contributions of the unfamiliar eruption of 1809 utilizing the Community Earth System Model (CESM), the most sophisticated modeling yet attempted for the Tambora eruption. The results will help fill in …
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Select geomorphological components of wildlife habitat in the ridge and valley province of Virginia
… solar radiation, and winds. Through these climatic effects, terrain influences the distribution of plant species and plant phenologies. I examined the role of terrain in applied environmental sciences including forestry, soil science, hydrology, and fisheries. Terrain also affects the …
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Characterization of Impact Melt Rocks and Hydrothermal Mineralization at the Haughton Impact Structure, Devon Island, Canada: An Investigation of Impacts into Carbonate Targets
… significant as decomposition would cause severe climatic effects due to release of large amounts of carbon dioxide into the atmosphere. At the root of the problem is the difficulty to distinguish and characterize the genesis of the variety of impactite carbonates produced. The Haughton impact …
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The marine life of Atlantic salmon: evidence from the chemistry of scales
… by baseline environmental conditions, and climatic effects are found to exert strong controls on numbers of fish returning to both the Northeast Coast and River Frome populations. Trophic level and/or baseline nitrate effects are also found to influence returning abundance to these …
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The role of historical land-cover changes as a mechanism for global and regional climate change
… globally and regionally, can have significant effects on both global and regional climates. These effects are not limited to the regions of direct land-cover change forcing. For example, as a result of tropical deforestation, the position and intensity of the ITCZ is affected by the change in …
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A New Method for Melt Detection on Antarctic Ice-Shelves and Scatterometer Calibration Verification
… can be important for long-term studies of the climatic effects of the seasonal and inter-annual melting of the Antarctic ice-sheets.</p> <p>The SeaWinds on QuikScat (QuikScat) and SeaWinds on ADEOS-2 (SeaWinds) scatterometers are identical radar sensors on different spaceborne platforms …
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Investigating the natural history and predator complex of the native pine bark adelgid (Pineus strobi) in southwestern Virginia
… efforts and offers insight into implication of climatic effects on population dynamics of this and related species. Arthropod predators associated with P. strobi in forests of southwest Virginia were collected during a two-year survey. Morphology and DNA barcoding were used for identification. …
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Fish Ladders Designed for Drop Culverts and Central Stoneroller Ecology Across a Latitudinal Gradient
… in the Northern Glaciated Plains. To understand climatic effects on Central Stoneroller, fish were sampled from three streams in each of three latitudes: 44.5° (South Dakota), 39.1° (Kansas), and 32.0° (Mississippi). Recruitment was consistent and growth and mortality were similar among …
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Carbon dynamics of global land use, land-use change, and forestry
… respective vegetation, soil distributions, and climatic domains. This work extends the widely used C-ROADS climate model, originally developed with a single biosphere, to incorporate this level of detail. Built up from a diverse set of highly resolved geospatial databases for land cover, soils, …
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Pedogenesis, weathering processes, and elemental distribution along a soil climosequence in the southern Piedmont
… impossible to differentiate between the complex effects of climate and geomorphic age on weathering intensity, soil profile development, mineral stability, and elemental flux within the pedoenvironment. Upland soils formed in similar granitic parent materials along a climatic gradient in the …
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Lamb wastage and its association with ewe body condition
… LW = 56.56 ± 0.59 kg) that were attributable to climatic effects. As a result ewes in 2002 had a significantly higher OR (1.89 vs 1.74), scanning (165 vs 155%), and lambing percentage (207 vs 150%), than in 2003, respectively. There was a significant (P < 0.001) positive linear correlation …
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VOLCANIC EMISSIONS AND DISTAL PALAEOENVIRONMENTAL IMPACTS IN NEW ZEALAND
… investigation into possible non-climatic effects on the environment from volcanic ash fall and toxic emissions outside the blast zone of a volcanic eruption. These effects are determined from palynological and geochemical changes following tephra fall at a range of sites across …
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Investigation into continuous spray and metered spray using compressed gas propellant
… in Paris, these propellants have the adverse climatic effects due to the level of VOC’s (Volatile Organic Compound) which can lead to greenhouse gases. The agreement has given an impetus to industry to significantly reduce these harmful gases by 2020. Therefore, an alternative energy is …
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Behavioural ecology of the black-flanked rock-wallaby (Petrogale lateralis lateralis): Refuge importance in a variable environment
… to protect them from both predators and adverse climatic conditions, there was still little understanding of how these animals utilise this important resource, particularly in highly variable environments. There is a long-standing premise in behavioural ecology that highly variable environments …