Within the field of Environmental Management, GIS can be used
for: - Site Remediation - Natural Resources Management - Waste
Management - Groundwater Modeling - Environmental Impact
Assessment - Policy Assessment Compliance Permit Tracking -
Vegetation Mapping A GIS can be represented as several different
layers where each layer holds data about a particular kind of
feature. By layering information such as wells, industries, and
population, spatial relationships among the objects being mapped
can be emphasized. Someone might see that the highly
contaminated wells are located next to a particular industry.
Or, they could see how many families are potentially at risk if
their drinking water comes from a contaminated well. A GIS
differs from other information systems because it combines
common database operations such as query and statistical
analysis with the benefits of visual and geographic analysis
offered by maps. "Geographic Information Systems (GIS) is a
system comprised of hardware, software, data, and p