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 105 for “"circulation patterns"”.
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Stratospheric-mesospheric circulation patterns and D-region absorption.
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1969.
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The characterisation of synoptic circulation patterns in Saldanha Bay
… to Saldanha Bay with the aim of studying the circulation characteristics in the various regions of the bay. It was found that drogues were an effective method of measuring currents in Saldanha Bay, with the best method of drogue tracking being with the use of a Differential Global Positioning …
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Floods in Germany : analyses of trends, seasonality and circulation patterns
… 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 from selected …
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The relationship between ENSO, seasonal rainfall, and circulation patterns in South Africa
… (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 NINO3 region …
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Future changes in extreme rainfall events and circulation patterns over southern Africa
… by examining the models ability to simulate circulation patterns over the regions with the aid of Self-Organizing Maps (SOM).
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PRINCESS AND THE PEA: THE IMPACT OF ROUGH TOPOGRAPHY ON DYNAMICS OF LARGE-SCALE SURFACE CIRCULATION PATTERNS
The circulation of the upper ocean has a critical role in the climate regulation of the Earth by redistribution of heat, nutrients and momentum across five basins. Large-scale gyres in these basins are driven by wind stress and planetary rotation. However, the interaction between these forces and …
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The Relationship Between Atmospheric Circulation Patterns And Water Surface Elevation In Devils Lake, North Dakota: 1965-2010
… 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 height. The …
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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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Characteristics of near surface circulation patterns in the Benguela as derived from the ADCP(Acoustic Doppler Current Profiler).
This study forms part of one of the Benguela Environment Fisheries Interaction and Training (BENEFIT) program projects, whose main objective is to implement effective and quality ADCP data collection in the Benguela region. The thesis has two main components, firstly it undertook to investigate and …
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An Experimental Study of Formation of Circulation Patterns in Laminar Unsteady Driven Cavity Flows Using Particle Image Velocimeter (PIV) Techniques
… capturing the development of driven cavity flow. Circulation is shown to increase strength with time and Reynolds number. PIV capture and processing settings are determined.</p> <p>Keywords: Driven Cavity Flow, Particle Image Velocimeter (PIV)</p>
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Computer enhanced modelling of tidal velocities and circulation patterns, Buttermilk Bay, Massachusetts: a model study and development of methods for general application
… the behavior of pollutants in Buttermilk Bay, a circulation model was developed using three methods: 1. analyzing hydrologic field measurements, 2. implementing a computer program which predicts flow velocities within the Bay, and 3. characterizing flow from geomorphic evidence. The first method …
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Climatic Influences on Residential Energy Consumption
… frequencies of upper-air (500-mb height) circulation patterns. Upper air circulation patterns are related to surface weather conditions, in that the movement of surface weather systems is governed (to some degree) by the direction of upper air winds. Thus, the frequency value is a …
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A quantitative comparative study of the Jewish and Palestine political elites (1920-48)
… of this work is to study the backgrounds and circulation of the Jewish and Palestinian Arab political elites. Chapter I is a discussion of elite theory and its relevance for the study at hand, as well as a delineation of who constitutes the two elites and what features of their backgrounds and …
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Edge analysis of seasonal variability in chlorophyll maps of the Black Sea
… be greatly benefited by being able to detect circulation features automatically through edge detection. In the Black Sea, the use of edge detection to identify fronts can be used to study the effects of river input on circulation patterns and biological and physical interactions. The use of …
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Hydrological Drought - a Study across Europe
… in other regions. <br>Anomalies of atmospheric circulation patterns (Europäische Großwetterlagen) during severe regional streamflow deficit were analysed. The grouped circulation patterns (CP) provide an adequate input for a new model to predict the regional streamflow deficiency index. Two …
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Meridional circulation in the tropical North Atlantic
… A brief overview of the meridional circulation of the upper waters resulting from these analysis techniques is presented. Schematic circulation patterns of the NADW and AAW are also presented. In both the western and eastern basins these waters are characterized by cyclonic …
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Effects of biomass-burning aerosol loading on Southern African climate
… chemical species, and, therefore, different circulation patterns are likely to be induced over all seasons, regardless of how large the emissions loading and/or concentrations are.
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Modelling Benguela niños using the regional oceanic modeling system (ROMS)
… events on the equatorial Atlantic Ocean SST and circulation patterns? The results obtained suggest that the model is very sensitive to different wind stress forcing, particularly in respect of the impact on the mixed layer characteristics. As a result the equatorial upwelling is overestimated in …
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Observations of surfzone vorticity using optical remote sensing
… reach shallow water near the shore. Currents and circulation patterns in the surfzone transport sediment, nutrients, pollutants, and other materials along and across the coast, and can create hazardous conditions for swimmers (rip currents). However, understanding of the strength and structure of …
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