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.
Results
Showing 1 to 20 of 33 for “"Climate Trends"”.
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Relationships of piñon juniper woodland expansion and climate trends in the Walker Basin, Nevada
… distributions have changed inconjunction with climate, driven by factors such as Milankovitch cycles and atmosphericcomposition. Until recently, these changes have occurred gradually. Human populationsare altering Earth's systems, including atmospheric composition and land use. This isaltering …
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Estimating the likelihood of significant climate change with the NCAR 40-member ensemble
… are changing the radiative forcing on the climate system, and this forcing will be the key driver of climate change over the 21st century. One of the most pressing questions associated with climate change is whether certain aspects of the climate system will change significantly. Climate …
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Storm signatures in coastal ponds and marshes over the late Holocene
… of which is imperative to understanding past climate trends and informing decisions for the future. This thesis uses a variety of methods to quantify the spatiotemporal signatures of tropical cyclone events in coastal, marsh, bay, and pond systems in Massachusetts, Connecticut, and Virginia.
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Coping and adaptation of women farmers to climate variability in Maseru and Quthing districts, Lesotho
… how they perceive, experience, and respond to climate variability. The study adopted a mixed-methodology research approach using qualitative and quantitative data analysis. Forty-two women farmers (14 respondents in Maseru and 28 in Quthing) were recruited using a snowball sampling approach. …
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Optical analysis of the ERBE scanning thermistor bolometer radiometer using the Monte Carlo method
… community to predict long-term weather and climate trends. Three satellites employing nonscanning active cavity and scanning thermistor bolometer radiometers are orbiting the Earth to monitor its radiative emission. A numerical model has been formulated to better understand the performance …
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Incised Stones of the Great Basin: A Contextual Archaeology
… of incised stones was discussed in terms of how climate trends affect the number of incised stones left at sites. The spatial analysis examined the incised stones through a chronology at the unit or trench level. The design grammar classifies the imagery of the incised stones. The design grammars …
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Quantifying Trends In our National Parks: A Landscape Level Analysis of Climate Change and Ecosystem Productivity
… forces that are difficult to evaluate, such as climate change. The magnitude and direction of change will vary spatially across the landscape, making it difficult for park managers to adopt just one approach to managing for climate change. Therefore, there must be a systematic way to analyze …
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Quantifying Trends In our National Parks: A Landscape Level Analysis of Climate Change and Ecosystem Productivity
… forces that are difficult to evaluate, such as climate change. The magnitude and direction of change will vary spatially across the landscape, making it difficult for park managers to adopt just one approach to managing for climate change. Therefore, there must be a systematic way to analyze …
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In-situ characterization of sea state with improved navigation on an Autonomous Underwater Glider
… are vitally important to understanding global climate trends, yet prohibitively expensive to persistently monitor with support vessels. To fill this observational gap, the sensing, navigation, and adaptability of AUGs must be improved. This is possible by employing onboard acoustic sensing for …
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In-situ Characterization of Sea State with Improved Navigation on an Autonomous Underwater Glider
… are vitally important to understanding global climate trends, yet prohibitively expensive to persistently monitor with support vessels. To fill this observational gap, the sensing, navigation, and adaptability of AUGs must be improved. This is possible by employing onboard acoustic sensing for …
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Development and Uncertainty Quantification of Hurricane Surge Response Functions and Sea-Level Rise Adjustments for Coastal Bays
… SRFs were 10% and 12%, respectively. Long-term climate trends, such as rising sea levels, introduce nonstationarity into the simulated and historical surge datasets. A common approach to estimating total flood elevations is to take the sum of projected sea-level rise (SLR) and present day surge …
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Agricultural practices and perceptions of climate change in Keur Samba Guéye village, Senegal, West Africa
… uses a mixed methods approach to analyze recent climate and land use changes, and farmers\' perceptions of climate change and its impacts on traditional agriculture in the village of Keur Samba Guéye (KSG). This work looks at the influence of social beliefs in adoption of new strategies by small …
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Late Quaternary climate variability and terrestrial carbon cycling in tropical South America
Characterizing global and regional climate variability and climate-carbon cycle interactions in the past provides critical context for evaluating present and future climate trends. In this thesis, I use stable isotope and radiocarbon analysis of vascular plant biomarkers in lacustrine and marine …
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Assessing the Effects of Biotic and Abiotic Factors on Ephedra viridis Seed Size
… response through seed size evolution to recent climate trends, and 3) Neighboring shrub influence on seed size across environmental gradients.The primary findings from each of my three chapters are:1) The likelihood of harvester ants harvesting seeds decreases with increasing intraspecific seed …
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Interpretations of Paleoclimate and Speleogenesis from Speleothems in Donnehue's Cave, Indiana
A detailed understanding of the climate of the Pleistocene (1,800,000 years ago to 10,000 years ago) is crucial for constructing predictive models of future climate trends. Researchers studying past climate (paleoclimate) records from different parts of the world are beginning to piece together an …
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Late Quaternary climate variability and terrestrial carbon cycling in tropical South America
Characterizing global and regional climate variability and climate-carbon cycle interactions in the past provides critical context for evaluating present and future climate trends. In this thesis, I use stable isotope and radiocarbon analysis of vascular plant biomarkers in lacustrine and marine …
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Storm signatures in coastal ponds and marshes over the late Holocene
… of which is imperative to understanding past climate trends and informing decisions for the future. This thesis uses a variety of methods to quantify the spatiotemporal signatures of tropical cyclone events in coastal, marsh, bay, and pond systems in Massachusetts, Connecticut, and Virginia. …
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Resolving Terrain Effects in Borehole Temperature Profiles
… aids scientists in determining past climate changes and in understanding current climate trends. Accurate borehole temperature logs are necessary to obtain a useful temperature profile. However, as many climate workers have discovered, borehole temperature profiles can have many …
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Climatic trends and soil moisture feedbacks over Zimbabwe
… region. A statistical analysis of historical trends in climate extreme events is used and lays a foundation of projecting into future climates. A trend analysis done on rainfall patterns attained from SOMs approach compliments the RClimdex statistical approach and strengthens some of the …
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