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 35 for “"Complex topography"”.
-
Air pollution modelling over complex topography
… study deals with air pollution modelling over complex topography, both from the phenomenological and numerical point of view. The theme of air pollution modelling has been faced at first from a phenomenological point of view. Then a numerical approach for the resolution of the …
-
Seasonal variation and spatial organization of hydrologic fluxes over complex topography
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1995.
-
An investigation into the effects of complex topography on particle dry deposition
There is a requirement to predict the spatial variation of particle dry deposition following a nuclear accident. The interaction of landscape features, atmospheric flow and particle dry deposition has been investigated with this in mind. Wind tunnel studies have been used with computational fluid …
-
Numerical Simulation Of The Atmospheric Boundary Layer Over Complex Topography: A Modern Approach To A Classical Problem
… simulation (LES). This framework captures the topography of the Earth’s surface rather than modeling it. To robustly simulate the ABL, four unique capabilities (temperature transport, topographic data, immersed boundary method with wall modeling, and turbulent inflow generation) were added to a …
-
Plants as biotic indicators of Neogene palaeoenvironmental evolution in the Cape Floristic Region
… spatial structuring within the flora, given the complex topography of the region.
-
The application of an illumination model to a mountainous LANDSAT scene
… of water), the same is not true of areas of complex topography. In mountainous areas, the mixture of light and dark regions in a LANDSAT image may be due to shadow effects as well as the reflectivity values for those wavelengths of light of the various surface features. In this research, an …
-
Inner-outer interactions in a rough-wall turbulent boundary layer
… walls were investigated, with the latter being a complex topography indicative of a realistic roughness commonly encountered in engineering applications. Single- and two-probe measurements provided a dual perspective on the large scales, and enabled analysis of analytical techniques commonly …
-
Understanding the characteristics of cut-off lows over the Western Cape, South Africa
… are influenced by the South African complex topography. This thesis investigates the interannual variability of COLs and COL precipitation over Western Cape, with a focus on the 2015 - 2017 drought that affected the region and examines how well climate models simulate the variability. …
-
Coastal ocean variability off the coast of Taiwan in response to Typhoon Morakot : river forcing, atmospheric forcing, and cold dome dynamics
The ocean is a complex, constantly changing, highly dynamical system. Prediction capabilities are constantly being improved in order to better understand and forecast ocean properties for applications in science, industry, and maritime interests. Our overarching goal is to better predict the ocean …
-
Coastal ocean variability off the coast of Taiwan in response to typhoon Morakot : river forcing, atmospheric forcing, and cold dome dynamics
The ocean is a complex, constantly changing, highly dynamical system. Prediction capabilities are constantly being improved in order to better understand and forecast ocean properties for applications in science, industry, and maritime interests. Our overarching goal is to better predict the ocean …
-
Geographic drivers of avian diversification in the Philippine archipelago
… marine barriers, periodic climatic barriers, and complex topography isolate and promote diversification in Philippine birds. Populations inhabiting island groups (bounded by deep-water barriers) are frequently paraphyletic, contrary to the perception that deep-water barriers are the most important …
-
Landscape-Scale Variability in the Composition, Growth and Pattern of Alpine Treeline Vegetation
… been highly variable, especially in regions with complex topography. In order to improve predictions of future change, I used field surveys, dendrochronology, and remote sensing to characterize variability in plant community composition, woody plant growth, and tree spatial patterns across …
-
Snow Accumulation and Melt Timing at High Elevations in Northwest Montana
… where strong climatic gradients coupled with complex topography are sampled by sparse ground measurements. We developed a snowmelt model, which ingests daily satellite imagery and meteorological data and is suitable for application to areas greater than 1000 km2, yet captures important spatial …
-
Snow Accumulation and Melt Timing at High Elevations in Northwest Montana
… where strong climatic gradients coupled with complex topography are sampled by sparse ground measurements. We developed a snowmelt model, which ingests daily satellite imagery and meteorological data and is suitable for application to areas greater than 1000 km2, yet captures important spatial …
-
Mechanisms of tidal dispersion in a salt marsh estuary
… MA), a tidally-dominated salt marsh estuary with complex topography. First, a field campaign was conducted to determine the dispersion associated with the out-of-phase exchange between tributary creeks and the main channel. Then, numerical simulations of an idealized estuary were conducted and a …
-
A climatology of the coastal low in the SW Cape
… coasts with a distinct local climate due to the complex topography of the region. This fact tends to alter the characteristic features of the Coastal Low system but appears not to prevent the Coastal Low from migrating through the region. The Coastal Low is regarded as being an internal trapped …
-
Mechanisms of Tidal Dispersion in a Salt Marsh Estuary
… MA), a tidally-dominated salt marsh estuary with complex topography. First, a field campaign was conducted to determine the dispersion associated with the out-of-phase exchange between tributary creeks and the main channel. Then, numerical simulations of an idealized estuary were conducted and a …
-
Designing liquid repellent surfaces for fabrics, feathers and fog
… the impact of surface chemistry and surface topography on the wettability of a textured surface. A smaller characteristic length scale of a re-entrant surface topography, tighter weave and a coating with inherently low wettability are better for producing omniphobic surfaces that resist …
-
Reproducing and Quantifying Spatial Flow Patterns of Ecological Importance with Two-Dimensional Hydraulic Models
Natural streams typically have highly complex flow patterns. Velocity gradients, circulation zones, transverse flows, and other flow patterns are created in the presence of topographic features (e.g. exposed boulders, bars). How flow complexity influences a stream's ecological health and …
-
Simulating eco-hydrological feedbacks and resilience of blanket bogs in the context of climate change
… The accumulation of peat carbon is mediated by a complex combination of interconnected ecological, hydrological, mechanical, and climatological processes and feedbacks. Many of these processes act to stabilise carbon accumulation and protect the existing carbon stock from disturbance, referred to …
Page 1 of 2