نتایج جستجو برای: urban growth boundary ugb
تعداد نتایج: 1131565 فیلتر نتایج به سال:
Boundary-layer wind tunnel provides a unique platform to reproduce urban, suburban and rural atmospheric boundary layer (ABL) by using roughness devices such as vortex generators, floor roughness, barrier walls, and slots in the extended test-section floor in the contraction cone. Each passive device impacts wind properties in a certain way. In this study, influence of various passive devices o...
fast and unplanned city growth, has effects such as isolation of village societies, threatening urbancores and centers and small and weak societies, destruction of open spaces and open and natural regions. smart growthoffers a sustainable way for urban developing with appropriate use of available sources, increase of urban services,developing neighborhoods with different uses, making public tra...
Knowledge of the mesoscale wind systems is very important to understand the dispersion of pollutants, thermal regulation and human comfort in the city. Wind field modifications brought about by the growth of the city of Lisbon and the possible urban environmental impacts are presented. In the last years the city of Lisbon has been growing towards the northern districts and the city center loose...
Urban environments are the primary contributors to global anthropogenic carbon emissions. Because much of the growth in CO2 emissions will originate from cities, there is a need to develop, assess, and improve measurement and modeling strategies for quantifying and monitoring greenhouse gas emissions from large urban centers. In this study the uncertainties in an aircraft-based mass balance app...
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Mixing height of the atmospheric boundary depends on the vertical variation of temperature in the atmosphere which includes temperature inversion (including surface and elevated inversions) that has a significant effect on air quality. The mixing height like some other meteorological variables has diurnal variations. The reason for that is its dependence on some other basic meteorological param...
1 Département Informatique et Télécommunications, Ecole Polytechnique de hiès (EPT), hiès BP A10, Senegal 2 Laboratoire Images, Signaux et Systèmes Intelligents (LISSI-E.A.3956), Université Paris-Est Créteil Val-de-Marne, Créteil, France 3 Laboratoire d’Analyse Numérique et d’Informatique (LANI), Université Gaston Berger (UGB), Saint-Louis BP 234, Senegal Département de Mathématique et Informat...
during a very long period of time, civil engineers have been the only ones to be designated as the experts for underground space, while the planners and architects were the ones of the development at the surface. cities worldwide tend to overlook an invaluable asset that lies beneath their surfaces. most cities and urban regions are unaware of the benefits underground space use has to offer, bo...
11 Airborne measurements within the urban mixing layer (360 m) over Greater London are used to quantify CO2 12 emissions at the meso-scale. Daytime CO2 fluxes, calculated by the Integrative Mass Boundary Layer (IMBL) 13 method, ranged from 46 to 104 μmol CO2 m -2 s -1 for four days in October 2011. The day-to-day variability of 14 IMBL fluxes is at the same order of magnitude as for surface edd...
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