Filters: Tags: NTS (X)
4 results (10ms)
Filters
Date Range
Extensions Types Contacts Categories Tag Schemes |
This feature class contains the Natural Resources Canada, National Topographic System 1:250,000 scale waterbodies for Prairie and Northern Region. Shape files from the individual map sheets were appended into this feature class.
Planimetric positional data represents a structuring of digitally scanned National Topographic Series mapsheet layers. Elevation data was created thorugh interpolation and extrapolation from the scanned contour layer. DATA SOURCE SIZE : 84 sheets GEO COVERAGE : Full coverage of province. Base information originates from digital scanning and vectorizing of federal 1:250,000 NTS lithographic layers of published mapsheets. DEM was created through a process of interpolation/extrapolation from original contours and the manual introduction of elevation points from hardcopy. Water and wetland closed polygonal features were created at a later date. Index Grid for NTS 1:250,000 scale maps.
The fate of contaminants in the environment is controlled by both chemical reactions and transport phenomena in the subsurface. Our ability to understand the significance of these processes over time requires an accurate conceptual model that incorporates the various mechanisms of coupled chemical and physical processes. Adsorption, desorption, ion exchange, precipitation, dissolution, growth, solid solution, redox, microbial activity, and other processes are often incorporated into reactive transport models for the prediction of contaminant fate and transport. U.S. federal agencies use such models to evaluate contaminant transport and provide guidance to decision makers and regulators for treatment issues. We provide...
Categories: Publication;
Types: Citation;
Tags: ARS,
Agricultural Research Service,
BTEX,
CNWRA,
Center for Nuclear Waste Regulatory Analyse,
Index Grid for NTS (National Topographic Series) 1:50,000 scale maps
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: BC,
British Columbia,
Canada,
Digital Elevation Model,
NPLCC,
|
|