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Reviews and news on sustainable materials and renewable technologies.

Urban modifications in a mesoscale meteorological model and the effects on near surface variables in an arid metropolitan region

Abstract A refined land cover classification for the arid Phoenix (Arizona, USA) metropolitan area and some simple modifications to the surface energetics were introduced in the fifth-generation PSU/NCAR mesoscale meteorological model MM5. The single urban category in the existing 24-category United States Geological Survey (USGS) land cover classification used in MM5 was divided into three classes to account for heterogeneity of urban land cover. Updated land cover data were ...

Assessment of ASTER land cover and MODIS NDVI data at multiple scales for ecological characterization of an arid urban center

Abstract  Study of the detailed structure and ecological functioning of urban and peri-urban systems is intensifying due to increasing concentration of the human population into urban centers. Much of this increase is expected to occur in semiarid to arid cites. Data from new high spatial, temporal, and spectral resolution satellite-based sensors promise to increase our understanding of global urban ecological and climatic processes and improve city and'land planning capabilities. ...

Land use and land cover mapping from diverse data sources for an arid urban environments

Wentz, E.A., Stefanov, W.L., Gries, C., and Hope. D. (2006) Land use and land cover mapping from diverse data sources for an arid urban environments. Computers, Environment, and Urban Systems 30 (3), pp. 320-346. 

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