Remote Sensing of the Surface Urban Heat Island and Land Architecture in Phoenix, Arizona: Combined Effects of Land Composition and Configuration and Cadastral-Demographic-Economic Factors

Abstract:

This study seeks to determine the role of land architecture—the composition and configuration of land cover—as well as cadastral-demographic-economic factors on land surface temperature (LST) and the surface urban heat island (SUHI) effect of Phoenix, Arizona. It employs 1 m National Agricultural Imagery Program data of land-cover with 120 m Landsat-derived land surface temperature decomposed to 30m, a new measure of configuration, the normalized moment of inertia, and U.S. Census data to address the question for two randomly selected samples comprising 523 and 545 residential neighborhoods (census blocks) in the city. The results indicate that, contrary to most other studies, land configuration maintains as strong a role in LST as does land composition. In addition, land architecture combined with cadastral, demographic and economic data, captures a significant amount of explained variance in LST. The results indicate that attention to land architecture in the development of or reshaping of neighborhoods may ameliorate the summer extremes in LST.