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 16 of 16 for “"atmospheric circulation patterns"”.
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The Relationship Between Atmospheric Circulation Patterns And Water Surface Elevation In Devils Lake, North Dakota: 1965-2010
… study is to examine the relationship between atmospheric circulation anomalies and historical water surface elevation fluctuations. Two independent datasets are used: the Spatial Synoptic Classification and the NCEP/NCAR Reanalysis datasets of precipitable water and 700 mb (hPa) geopotential …
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The detection and prediction of climate change in Ireland using an automated classification of atmospheric circulation patterns
… what is steering this change in climate. A circulation-type catalogue for Ireland has been constructed from National Centers for Environmental Prediction (NCEP) Reanalysis data, to objectively classify atmospheric circulation patterns. It is thus possible to determine to what extent the …
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Floods in Germany : analyses of trends, seasonality and circulation patterns
… climate change and proven significant trends in atmospheric circulation patterns, it is questionable whether these changes are also reflected in the discharge data. The aim of this PhD thesis is therefore to clarify, in a spatially-explicit manner, whether the available discharge data derived …
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An evaluation of statistical synoptic models of rainfall in Spain
This study investigates the control of atmospheric circulation patterns on rainfall incidence in Spain. The main objective of the research is to evaluate a range of statistical synoptic approaches with the aim of identifying the scheme that best models circulation to association. Spatial patterns …
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Assessing factors contributing to the changes in historical temperature extremes and investigating future changes in extreme events
… HadEX3 dataset; the impact of large-scale atmospheric circulation patterns on dynamic changes in temperature extremes has also been examined. Then, future changes in extreme temperature variables at a much smaller scale (e.g., local scale) are investigated through a stepwise clustered …
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The relationship between ENSO, seasonal rainfall, and circulation patterns in South Africa
… phenomenon (ENSO), seasonal rainfall, and atmospheric circulation patterns at the 1000 hPa and 500 hPa levels are investigated. Firstly, correlations between early-summer (October to December), late-summer (January to March) rainfall over South Africa, and sea-surface temperatures in the …
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Hydrological Drought - a Study across Europe
… in space and time and their large-scale atmospheric driving forces in Europe. On the basis of daily streamflow data of more than 600 European rivers for 1962-1990, two types of events were defined: streamflow drought, defined by a seasonally constant threshold and streamflow deficiency, …
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Estimación de la distribución espacial de la precipitación en zonas montañosas mediante métodos geoestadísticos
… of rainfall variability into local and general atmospheric circulation patterns. The former are represented by monthly average rainfall and standard deviation at each point of the territory. It describes the influence of features such as altitude, terrain orientation, influence of the coast and …
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A Reconstruction of Post-Glacial Hydroclimatic Change and Mass Accumulation Rates from a Small Watershed of the Lower North American Great Lakes Region
… latitude of the Polar jet stream, which dictated atmospheric circulation patterns. During the late Pleistocene to early Holocene, the Laurentide Ice Sheet forced the jet stream south, resulting in reduced precipitation. Following the ice sheet collapse, declining summer insolation as well as …
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Stormy records from peat bogs in south-west Sweden : implications for regional climatic variability and vegetation changes during the past 6500 years
… and may be used to infer variations in past atmospheric circulation patterns. In addition, a detailed comparison between ASI values and testare amoebae based wetness reconstructions has revealed an enigmatic pattern of increased storm activity during shifts in humidity during the past 1700 …
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Hydroclimate Drivers and Atmospheric Dynamics of Floods
… land surface conditions, large-scale climatic patterns, and mesoscale atmospheric teleconnections. Analyzing recent trends in the frequency and duration of global floods indicates that there is a significant upward trend in the statistics of their annual probability distribution, and …
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Precipitation prediction over High Mountain Asia using Gaussian processes
… over a 15-year horizon from large-scale atmospheric circulation patterns. More specifically, a perfect prognosis approach is applied to predict monthly ERA5 reanalysis precipitation. Model design, including learning the non-stationary spatial distribution of precipitation, is explored. …
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Topographic evolution of the East African Plateau : a combined study on lava-flow modeling and paleo-topography
… as the dominant forcing factor influencing atmospheric circulation patterns and rainfall distribution. The uplift of this region has therefore often been associated with fundamental climatic and environmental changes in East Africa and adjacent regions. While the far-reaching influence of …
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Aquatic macrophyte-derived biomarkers as palaeolimnological proxies on the Tibetan Plateau
… landmass in the world and profoundly influences atmospheric circulation patterns such as the Asian monsoon system. Therefore this area has been increasingly in focus of palaeoenvironmental studies. This thesis evaluates the applicability of organic biomarkers for palaeolimnological purposes on …
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Reconstructing Australia’s late Quaternary climate from the geochemistry of lake sediments and snail shells
… Pacific, and Southern oceans, as well as major atmospheric circulation patterns. Australian climates exhibit high inter-annual variability, arising in part from complex interactions between these drivers. Understanding the nature and drivers of Australian climate variability is not only …
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Understanding Coastal and Inland Hydrometeorological Hazards Produced by Extratropical and Tropical Cyclones along the East Coast of the United States
… of ETCs and TCs and the large-scale atmospheric circulation patterns that resulted in the top 100 basin-scale 1-day precipitation, multi-day precipitation, and 1-day streamflow events from 1950 to 2012 in the Catskill Mountains. Of the top 100 precipitation and streamflow events, over …