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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 23 for “"atmospheric stability"”.
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Evaluating the Role of Atmospheric Stability in Generating Asymmetrical Precipitation During the Landfall of Hurricane Florence (2018)
… between precipitation asymmetries and atmospheric stability surrounding the tropical cyclone (TC) during the landfall period of a nearly-stationary TC. Previous research with idealized hurricane simulations suggests that atmospheric stability may vary surrounding a TC during landfall, …
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Air pollution modelling for the greater Cape Town region
… parameters, such as the mixing height and the atmospheric stability class, are not readily available and thus needed to be calculated. Three methods for determining the mixing heights and three methods for determining atmospheric stability class were used in the model and the accuracy for each …
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The pollen and spores of metropolitan Cape Town and their relationship with meteorological conditions
Cladosporium, in general, is the dominant atmospheric fungal spore. Fungal spores are, quantitatively, the dominant partner in the atmosphere. Meteorological factors such as wind speed and wind direction, precipitation, temperature, relative humidity, atmospheric pressure and atmospheric stability …
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Determining ground-level composition and concentration of particulate matter across regional areas using the Himawari-8 satellite
… the identification of compositional differences, atmospheric stability, and cloud cover and this improves the estimated accuracy. Preliminary validation suggests that atmospheric stability, cloud height, relative humidity, PM2.5, PM10, NO, NO2, and O3 appear to produce plausible plumes but that …
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Analytical Prediction and Experimental Verification of Blade Loads Experienced by Two, Three-Bladed, Fixed Pitch, Horizontal Axis Wind Turbines
… The data were collected covering a wide range of atmospheric conditions. The data were characterized based on several meteorological parameters that are well correlated with loads, including atmospheric stability, turbulence level, and mean wind speed.</p> <p>As part of this effort, measured blade …
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Energetics and similarity theory in the wave-affected atmospheric boundary layer
… sensors are used in this analysis to examine atmospheric fluxes occurring within the wave-affected boundary layer (WBL). Using Monin-Obukhov (MO) Similarity Theory, we analyzed the fluxes and energy balance under different atmospheric stability conditions. Through a comparison of …
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Air quality at an electric-arc steel manufacturing plant
… standards. These roses were compared with the atmospheric stability classes for each of those periods. Log-probability plots were constructed for each sampling point and an exponential relationship was found between mean concentrations at each sampler and each sampler's distance from the …
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Air pollution modelling over complex topography
… for vertical skewed turrbulence in any atmospheric stability class. Langevin equation were solved following Thomson's (1987) approach. Special attention was put on near field dispersion processes. In fact, lagrangian models turn out to be the most advanced numerical schemes for pollutant …
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On the role of high frequency waves in ocean altimetry
… the surface waves, radar backscatter, the atmospheric flow, and turbulent fluxes within the marine boundary layer. This uncommon ensemble provides the means to address several specific altimeter-related topics. First, we examine and document the impact that non wind-driven gravity wave …
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Statistical Scaling of Turbulent Surface Pressure in the Atmospheric Boundary Layer
… These fluctuations are of interest both to atmospheric scientists, as a fluid dynamic property, and to acousticians, as a source of wind noise. At the ground surface, previous work has found the dominant source of pressure fluctuations to be an interaction of the turbulent vertical velocity …
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Exploring sensitivities of latent heat parameterizations using a coupled, integrated hydrologic model
… Including complexities associated with atmospheric stability influences evaporation behavior the most under water-limited conditions. For a vegetated surface, important input parameters used to compute the rate of transpiration vary seasonally and diurnally. Further analysis uncovers …
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Estimating atmospheric boundary layer turbulence in the marine environment using lidar systems with applications for offshore wind energy
Estimating turbulence in the marine-atmospheric boundary layer is critical to many industrial, commercial and scientific fields, but of particular importance to the wind energy industry. Contributing to both the efficiency of energy extraction and the life-cycle cost of the turbine itself, …
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Revisiting the importance of a Southern Ocean pattern effect
… models: We quantify the time evolution of local atmospheric stability, clouds, and their local and global radiative effects as the Southern Ocean warming is catching up with global mean warming. SM00 argue that in the early period after a strong radiative forcing with CO2, the Southern Ocean's …
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North American monsoon precipitation and its precursors: processes at the seasonal and diurnal scale
… budget variables, the large-scale flow, and atmospheric stability on the seasonal and diurnal scales. On both the seasonal and diurnal scale, flow was key to the location and intensity of precipitation. In 2004, the subtropical high over the south-central United States was about 300~km west …
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Observational studies of scatterometer ocean vector winds in the presence of dynamic air-sea interactions
… major control on scatterometer retrievals is atmospheric stability, which affects both surface roughness and wind shear. A study using wind, stress, temperature, and pressure measurements at a mooring in the Gulf Stream as well as collocated scatterometer data proved that the scatterometer …
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Adaptation strategies to climate change in the Tropics: analysis of two multifactorial systems (high-altitude Andean ecosystems and Plasmodium falciparum malaria infections)
… herein include the analyses of changes in atmospheric stability and lifting condensation levels; the diagnosis of changes in hydrological regimes; the assessment of the extent of life zones; the analyses of increases in the occurrence and rapid spread of high-altitude fires; the assessment …
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An investigation into air quality with an emphasis on the design and development of a numerical model for the transport of gaseous and particulate pollutants in airborne and deposited matter
… development and verification of the Short term Atmospheric Pollutant Transport Analysis Model (SAPTAM). The SAPTAM model was developed to simulate short term pollutant dispersal accounting for the effects of atmospheric stability, terrain and secondary transport dynamics, such as, dry …
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Investigation of the Influence of Temperature Inversions and Turbulence on Land-atmosphere Interactions for Rolling Terrain
… these models break down especially during stable atmospheric conditions. The complex terrain generates its own thermal circulation such as the drainage flow at nighttime. Surface heterogeneity is common in complex terrain, which is one of the factors that leads to erroneous surface fluxes …
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Examining the Influence of Aerosols from Air Pollution on Current and Projected Temperatures in the Urban Area of Chongqing, China
… Partially compensating factors, including atmospheric stability, precipitation, and cloud fraction, contribute to the observed temperature changes in these simulations. Findings indicate that climate change, rather than aerosols, is the primary driver of summer temperature increases in …
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South Asian summer monsoon variability: a modelling study with the atmospheric regional climate model HIRHAM5
… during the South Asian summer monsoon using the atmospheric regional climate model HIRHAM5 at a horizontal resolution of 25 km forced by the ECMWF ERA Interim reanalysis for the period 1979-2012. By calculating moisture and moist static energy budgets the various competing mechanisms leading to …
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