منابع مشابه
Subpixel Impervious Surface Mapping
Identified by the EPA as the leading threat to surface water quality in the United States, nonpoint source (NPS) pollution is channeled into rivers and streams via impervious surfaces. Impervious surfaces are anthropogenic features, such as roads, buildings, and parking lots, through which water cannot infiltrate into the soil. Research from the past 15 years shows a consistent, inverse relatio...
متن کاملRESOLVE - Impervious Trusted Semantic Web
World Wide Web is now having highly confidential data. The semantic Web is further extracting information from this data. But Extracting information through Agents required high level of security consideration. This paper is proposing a system called RESOLVE for protecting this highly secured information through its full proof mechanism. It works with double layer of Security.
متن کاملInteractive Gis - Based Impervious Surface
Research has shown that impervious surfaces, a consequence of development, have a direct impact upon stream quality. Local planners and land-use officials need simple tools to help them determine the amount of impervious surface within watersheds and to assess impacts from future development. This paper describes an ArcView GISbased model being developed by the Northeast Regional Earth Science ...
متن کاملImpervious surface mapping in Southern Norway
* Corresponding author. Abstract – Impervious surfaces are mapped by applying regression tree classification on Landsat ETM+ data of Østfold County located in Southern Norway. Reference data consist of high precision polygon vector data of roads, parking lots and buildings for a selected region (Fredrikstad Municipality) within the study area. The output from the classification using the regres...
متن کاملImpervious surface mapping with Quickbird imagery.
This research selects two study areas with different urban developments, sizes, and spatial patterns to explore the suitable methods for mapping impervious surface distribution using Quickbird imagery. The selected methods include per-pixel based supervised classification, segmentation-based classification, and a hybrid method. A comparative analysis of the results indicates that per-pixel base...
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ژورنال
عنوان ژورنال: The Iowa Review
سال: 2008
ISSN: 0021-065X,2330-0361
DOI: 10.17077/0021-065x.6430