A spatial model to aggregate point-source and nonpoint-source water-quality data for large areas Export

@article{citeulike:3380012, abstract = {More objective and consistent methods are needed to assess water quality for large areas. A spatial model, one that capitalizes on the topologic relationships among spatial entities, to aggregate pollution sources from upstream drainage areas is described that can be implemented on land surfaces having heterogeneous water-pollution effects. An infrastructure of stream networks and drainage basins, derived from 1:250,000-scale digital-elevation models, define the hydrologic system in this spatial model. The spatial relationships between point- and nonpoint pollution sources and measurement locations are referenced to the hydrologic infrastructure with the aid of a geographic information system. A maximum-branching algorithm has been developed to simulate the effects of distance from a pollutant source to an arbitrary downstream location, a function traditionally employed in deterministic water quality models.}, author = {White, Dale A. and Smith, Richard A. and Price, Curtis V. and Alexander, Richard B. and Robinson, Keith W.}, citeulike-article-id = {3380012}, citeulike-linkout-0 = {http://www.sciencedirect.com/science/article/B6V7D-48CFVD7-94/2/57c4c94b38ec10c8c3e423bc3d267280}, journal = {Computers \& Geosciences}, keywords = {algorithm, drainage, file-import-08-10-06, geographic, information, networks, quality, water}, month = {September}, number = {8}, pages = {1055--1073}, posted-at = {2008-10-06 15:16:22}, priority = {2}, title = {A spatial model to aggregate point-source and nonpoint-source water-quality data for large areas}, url = {http://www.sciencedirect.com/science/article/B6V7D-48CFVD7-94/2/57c4c94b38ec10c8c3e423bc3d267280}, volume = {18}, year = {1992} }

TY - JOUR ID - citeulike:3380012 L3 - citeulike-article-id:3380012 N2 - More objective and consistent methods are needed to assess water quality for large areas. A spatial model, one that capitalizes on the topologic relationships among spatial entities, to aggregate pollution sources from upstream drainage areas is described that can be implemented on land surfaces having heterogeneous water-pollution effects. An infrastructure of stream networks and drainage basins, derived from 1:250,000-scale digital-elevation models, define the hydrologic system in this spatial model. The spatial relationships between point- and nonpoint pollution sources and measurement locations are referenced to the hydrologic infrastructure with the aid of a geographic information system. A maximum-branching algorithm has been developed to simulate the effects of distance from a pollutant source to an arbitrary downstream location, a function traditionally employed in deterministic water quality models. IS - 8 JF - Computers & Geosciences EP - 1073 TI - A spatial model to aggregate point-source and nonpoint-source water-quality data for large areas VL - 18 SP - 1055 KW - algorithm KW - drainage KW - file-import-08-10-06 KW - geographic KW - information KW - networks KW - quality KW - water AU - White, Dale AU - Smith, Richard AU - Price, Curtis AU - Alexander, Richard AU - Robinson, Keith PY - 1992/09// UR - http://www.sciencedirect.com/science/article/B6V7D-48CFVD7-94/2/57c4c94b38ec10c8c3e423bc3d267280 ER -