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GIS Services
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Various spatial layers are overlayed to analyze data
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A Geographic Information System (GIS) is a
computer mapping system used for creating customized maps,
viewing spatial relationships, and conducting complex spatial
analyses. GIS connects computer-based maps with databases,
making it possible to query a database and view the results on a
map, or vice-versa. By overlaying layers of GIS data, the
relationships between different types of geographic information
become apparent. For example, by overlaying the locations of
impassable culverts with salmon migration routes, it is possible
to identify the locations where salmon migration is being
hindered.
View some of our maps included in watershed assessments.
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E&S Environmental offers services in GIS analysis,
spatial database construction and management, custom mapping, GIS training,
system installation, and quality assurance/quality control. E&S has considerable
experience with GIS-based resource modeling, and has used GIS and image
processing for water quality, air quality, watershed analysis, and other natural
resource applications. In recent projects we have used GIS to link historical
water quality to changing land use practices within watersheds, and also to
analyze the effects of acid rain and groundwater contaminants and to evaluate historical trends.
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Klamath River Basin, Oregon and California.
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Example GIS Projects Conducted by E&S Environmental
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Analysis of Nonpoint Source
Pollution - E&S prepared an analysis of diffuse sources of water
pollution in the 12,000 mi2 Willamette River Basin using digital
information on land use, soils, hydrography, climate, and topography.
(Client: Oregon Department of Environmental Quality)
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NAPAP State of Science and
Technology Report - E&S staff authored and produced the State of
Science and Technology Report, "Historical Changes in Surface Water
Chemistry throughout the United States in Response to Acidic
Deposition." This involved coordinating use of approximately ten
surface water quality databases and performing statistical and geographical
analyses.
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Satellite image of earth.
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Watershed and Lake Mapping
- E&S prepared lake and watershed maps for several lake projects
involving individual lake management districts. The digital watershed
maps are used to quantify major land uses which are used for modeling
watershed processes and for designing lake and watershed monitoring
programs.
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Cornbelt Ecoregions - E&S used quantitative techniques to
identify and characterize subecoregions of the cornbelt for a research program in the Midwest on ecological effects of agriculture. (Client: EPA).
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GIS User Requirements Analysis - A project completed for the U.S. Fish and Wildlife
Service developed a User Requirements Analysis for integrated GIS
application throughout the agency's Pacific Region (Oregon, Washington,
Idaho, Nevada, California, Hawaii). This project involved elements of
staff interviewing, identification of current and future GIS requirements
and candidate GIS alternatives, assessment of image analysis alternatives,
risk and cost/benefit analyses, and development of GIS implementation plans
for the regional headquarters and over 150 offices and refuges throughout
the Pacific Region.
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GIS Installation - E&S installed
ARC/INFO for an environmental engineering corporation and trained staff on the use and maintenance of the system, including elements of data input, statistical analyses, database management, outputs, and supporting hardware considerations. Subsequently, E&S served as
consultant to the corporation on the GIS components of powerline siting studies. (Client: KBN Engineering and Applied Sciences, Inc.)
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Groundwater Chemistry Assessment - E&S conducted spatial analyses, using multiple scales, of groundwater sensitivity to acidification and trace metal contamination in the northeastern United States. (Client: Tennessee Valley Authority)
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National Lake Survey Boundary Analysis - E&S prepared an agency report and a Springer-Verlag book
chapter on geographic aspects of regional and subregional boundaries
employed in the study of lake and stream chemistry and the sensitivity of
surface waters to acidic deposition effects. (Client: EPA)
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Atlas Construction and
Publication - E&S completed a project that entailed preparation of a
natural resource and recreation atlas for the Oregon coast. The
completed atlas is sold at outlets throughout the Pacific Northwest, and
includes 42 pages of full-color, computer-generated maps that cover the
entire coastline of the state and 61 pages of text. Approximately 35
resource types are mapped, including marine bird nesting sites,
whalewatching areas, marine mammal haul-out areas, hiking trails,
campgrounds, birding areas, etc. The project was jointly funded by
E&S and the Linn-Benton Regional Strategy of Oregon.
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Nikiski Air Pollution
Vegetation Impacts - E&S staff completed research and documentation
of adverse effects of atmospheric emissions of nitrogen on forest
ecosystems; sampled, analyzed, and prepared databases on precipitation, throughfall, soil solution, and needle chemistry; conducted field
measurements of forest health and growth.
E&S
Chemistry
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Restoration
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Geographics
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Copyright © 2002
E&S Environmental Chemistry, Inc.
Last modified: September 20, 2004
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