Correcting satellite imagery for atmospheric effects is a common procedure today. Indeed there are many techniques and software applications that offer atmospheric correction processes. This study compared several techniques (apparent reflectance, dark-object subtraction, Cos(t), and the full cost model) in both Idrisi and ENVI software to determine the level of similarity between resulting ima...

The hybrid visualization and interaction tool EarthScape is presented here. The software is able to display simultaneously LiDAR point clouds, draped videos with moving footprint, volume scientific data (using volume rendering, isosurface and slice plane), raster data such as still satellite images, vector data and 3D models such as buildings or vehicles. The application runs on touch screen de...

In the last decades, several studies have revealed how critical the urban heat island (UHI) effect can be in cities located in cold climates, such as the Canadian one. Meanwhile, many researchers have looked at the impact of the city design over the urban microclimate, and have raised concerns about the development of too dense cities. Under the effect of the “Places to Growth” plan, the city o...

One of the most important issues in urban studies relating to climate and environmental sustainability is analysis thermal conditions public spaces, especially streets, since this issue seems affect comfort citizens using such spaces. Thus, main aim present study investigate effect streetscape parameters on streets a hot summer semi-arid climate. For purpose, Karimkhan-e-Zand Street Shiraz, Ira...

The utilization of urban green zones forms a major part of urban sustainability in the context of the improvement of quality of life of the citizens. Within the policy for sustainable management of urban green zones, the tools that are used effectively are new technologies such as web databases, web DSS, GIS and environmental impact prediction model. This paper presents the geodatabase, which w...

The objective of this paper is to present a methodology for the integration Computational Fluid Dynamics (CFD) microclimate simulation and Geographic Information System (GIS). first workflow involves attribution spatial coordinates point data extracted from CFD, implementation an SQLite database, connection database visualise use information on environmental comfort variables. second georeferen...

A city’s microclimate is greatly impacted by urbanization. The ratio of building height to street width affects the thermal properties urban canyons. This characteristic one main elements that control radiation emitted and how much solar absorbed, causing air temperature be greater than in rural areas (urban heat island effect). aim this study examine effect variations housing buildings on layo...

In recent years, there has been a frequent occurrence of extremely cold conditions which has had a serious impact on the life of residents of buildings in various locations around the world. However, there have only been a very limited number of studies on the effects of residential area building layout on the winter wind environments, which led to a lack of quantitative guidance for residentia...