Impervious surfaces are an environmental concern because their construction initiates a chain of events that modifies urban air and water resources: The pavement materials seal the soil surface, eliminating rainwater infiltration and natural groundwater recharge.
The study shows that mapping of impervious surface distribution, using remotely sensed data, produces substantially different estimates of discharge at catchment level than traditional approaches that are based on expert judgment of average imperviousness for different types of...
This study proposed a global impervious surface area index (GISAI) enhancing ISA mapping accuracy using a temporal parameter of the remote sensing (RS) dataset.

Furthermore, visual representations like the one above help us fully grasp the concept of Impervious Surface Expert Studies.
Scientists studying the effects of urban growth are concerned with surface imperviousnessthe amount of land covered by human-made features such as asphalt, concrete, and rooftops. These surfaces are impervious to rainwater.
(3) Impervious surface map resulted from linear spectral mixture analysis, with an accuracy of 13.2% for the whole study area.Thus, the use of TIR data was instrumental in producing impervious surfaces maps of reasonable accuracy. 4.2. Knowledge based expert systems.

The study shows that detailed information on the spatial distribution of impervious surfaces, as obtained from remotely sensed data, produces substantially different estimates of peak discharges than traditional approaches based on expert judgment of average imperviousness for...