Sentence examples for evolution of impervious from inspiring English sources
More researches are also needed to better understand temporal resolution, change and evolution of impervious surfaces over time, and temporal requirements for urban mapping.
To this aim, several models simulating the evolution scenario of impervious watershed area and of climate change were adopted.
The GMIS dataset consists of two components: 1) global percent of impervious cover; and 2) per-pixel associated uncertainty for the global impervious cover.
The average depth of impervious layer was computed from the following equation (Jat 1990).
Delhi has higher proportion of impervious area and sparse green area.
If the house itself is compact, the impervious material can become the largest component of impervious coverage on the lot.
For example, the proportion of impervious surface within 300 m was correlated with the proportion of impervious surface within 1000 m (r = 0.93).
The gradient was a priori defined by the amount of impervious surface within the surrounding landscape.
There was a clear gradient in the proportion of impervious surface surrounding the allotment gardens.
In a review of impervious land cover effects on streams, Schueler and Holland (1994) propose a three-level classification system for stream condition based on percent urban/impervious area; sensitive streams (0 10 % impervious), impacted streams (11 25 % impervious), and impaired streams (26 100 % impervious).
But pollutants can't penetrate an impervious surface, and the rapid flow of rainwater off of impervious surfaces means these pollutants end up in the water.
