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 15 of 15 for “"Urban Canopy"”.
-
Urban Canopy
This thesis explores the definition of an urban canopy, how civic architecture can create a space for the pedestrian in the city, and the elements which can compose such a space. Experimentation in the urban canopy allows definition into the protective nature of such an archetype. Filtering and …
-
An analysis of quadrotor flight in the urban canopy layer
… bodies of work concerning quadrotor flight in urban wind fields. The first attempts to characterize a quadrotor's ability to exploit urban wind fields for improved flight performance. A computational fluid dynamics model is used to obtain a wind field estimate given a 3D model of the …
-
Quantifying exchange processes in the urban canopy layers of dense neighborhoods
There is a global trend towards urbanization, particularly in developing regions that are home to new and rapidly growing cities. In the center of large, dense urban areas, weak exchange between the urban canopy layer (UCL) and the urban boundary layer (UBL) above it results in insufficient removal …
-
Evaluating heat mitigation by urban canopy in New York City’s public housing developments
… into the ecosystem services provided by urban canopy that aims to characterize the temperature reduction provided by urban forests and develop process-level understanding of vegetation response to heat waves in order to improve estimates of heat mitigation in the face of extreme heat.</p> …
-
An urban weather generator coupling a building simulation program with an urban canopy model
The increase in air temperature observed in urban environments compared to the undeveloped rural surroundings, known as the Urban Heat Island (UHI) effect, is being intensely studied, due to its adverse environmental and economic impacts. Some of the causes of the UHI effect are related to the …
-
Modelling the impact of urbanisation on the regional climate of the Greater London area
Urban areas have well documented effects on climate, such as the urban heat island effect, reduction of wind speeds, enhanced turbulence and boundary layer heights, and changes in cloud cover and precipitation. This PhD examines the impact of the urban surface on the major agglomeration of London …
-
Predicting velocities and turbulent exchange in isolated street canyons and at a neighborhood scale
Urban planners need a fast, simple model to assess the impact of early design phase iterations of neighborhood layout on the microclimate. Specifically, this model should be able to predict the expected urban heat island intensity and the locations in neighborhood layouts that are prone to …
-
On the Understanding of the Coastal-Urban Nexus of Weather, Air Quality and Energy
<p>Urban environments exhibit complex interactions between atmospheric processes, building energy consumption, and air quality, particularly during periods of seasonal extremes such as summer ozone peaks and winter heating. Accurate representation of these interactions in urban modeling is crucial …
-
Study and prediction of the energy interactions between buildings and the urban climate
Urbanization produces higher air temperatures in cities than in the undeveloped rural surroundings. This phenomenon is known as the Urban Heat Island (UHI) effect and has been measured in different cities around the world. Conventional building energy programs use standard meteorological databases …
-
Model development for urban climates
… of environmental models that represent urban land surfaces in weather and climate simulations. Developments focus on efficiently representing physical and behavioural processes at the neighbourhood to city scale. Major contributions and key findings include: 1) Development of a new heat …
-
Reimagining Urban Leftover Spaces Under Overpasses: Mitigating Urban Heat Islands and Heatwaves Through Green Space Transformation
The urban thermal environment is deteriorating due to the constructed urban space and climate change, which negatively impacts public health, especially in the Urban Canopy Layer (UCL). Recent research has investigated the contribution of microclimate parametric in specific urban typologies such as …
-
Using land cover changes to mitigate the impacts of hot temperatures in South African cities
… dataset is then incorporated into the Urban Canopy model (UCM) and the Weather Research and Forecasting model (WRF) to simulate conditions over the cities.To investigate the effectiveness of using land cover changes as potential cooling strategies, two idealised but realistic scenarios …
-
Evaluating Columbus, Georgia, Tree Canopy Interactions with Air Pollutants Using High Spectral Imagery and Portable PM Sensors
… economic, and social advantages in urban areas. Knowing the extent and location of tree canopy in a municipality is an important step in quantifying these benefits. Spatial and temporal tree canopy analysis was performed for the city of Columbus, Georgia, by categorizing the National …
-
Influence of Street Trees on Frequency of Vehicle Collisions in Seattle
This thesis explores the correlation between street trees and motor vehicle crash frequency in Seattle, WA, focusing on the implications for livability and safety. While previous literature initially suggests a potential negative relationship between trees and crashes, the present study finds no …