Combined Methods of Thermal Remote Sensing and Mobile Climate Transects in Beer Sheva, Israel
نویسندگان
چکیده
In this paper, we examine the utility of combining mobile transect surface climate observations with remotely sensed observations in order to explore urban growth and its relation to local climate in the city of Beer-Sheva, Israel. Data to produce several transects of surface level meteorological readings were gathered in 2002, funded by a Fulbright grant to the senior author. A transect analysis of surface radiative heat through the city and its environs is separately produced with Landsat images from 1987 and 2000, using the conversion model from spectral radiance to effective temperature, following the calibration procedures by Chander and Markham (2003). The results of the two transect methods are then compared for potential similarity, keeping in mind that the data sources represent different years. The Landsat images of Beer-Sheva and its surroundings are further examined for differences with time in the pattern of surface radiative heat and also for urban growth. The remotely sensed transects are also compared with each other. The analytical Green CTTC model (after Shashua-Bar et al, 2004) is then applied to aid in explaining findings due to the city’s building configuration in the Urban Canopy Layer. Our results, together with previous work done for the larger desert city of Phoenix, Arizona, are compared to explore the degree to which background weather, vegetation, building density of the city, and the surrounding rural conditions all play a role in urban effects on local climate in these two desert regions.
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