Creating mathematical expressions to represent a simplified view of real-world systems.
South Florida Information Access (SOFIA) data exchange [ More info] Provides links to the data, models and maps on the biology, ecology, geology, mapping, hydrology, and chemistry of research studies in southern Florida.
South Florida Information Access (SOFIA) projects by topic [ More info] Links to explore South Florida and the Everglades ecosystem projects arranged by topic and subtopic, including proposals, project summaries, scopes of work, work plans, publications, and contacts.
Summary of the reconnaissance investigation of the diamond resource potential and production capacity of Côte d'Ivoire [ More info] Study integrating archival reports and maps, satellite imagery, and terrain modeling to estimate resource reserves of 11,200,000 carats in two regions of the country.
Surface-water reports [ More info] Links to Office of Surface Water reports on streamgaging, streamflow data and information, current meters, sediment, modeling, journal articles, and techniques.
Terrestrial essential climate variables (ECVs) at a glance [ More info] Explains 16 distinct types of scientific information that are needed to understand climate change, including the specific parameters measured, why they are needed, who measures them, and the type and amount of information that are not yet available.
The Earth's crust [ More info] Information on the Earth's crust with a contour map of the thickness plus links to a global crustal database, a global crustal model - CRUST 5.1, and regional crustal models.
The Midwest Stream Quality Assessment [ More info] Upcoming interagency study to assess status of ecological conditions, their relationships with contaminants and nutrients, anthropogenic factors affecting these, and develop models that may predict these ecological conditions.
U.S. Geological Survey methodology development for ecological carbon assessment and monitoring [ More info] To assess the effectiveness of ecological carbon sequestration, we plan to define ecosystem reporting units, model baseline and potential carbon sequestration, develop spatial models that simulate ecosystems, and integrate remote sensing data.
Understanding beach health throughout the Great Lakes-Entering a new era of investigations [ More info] People who manage recreational areas need better, more timely estimates of the likelihood that the beach and lake waters will be hazardous to human health, and which factors cause those hazards.
Using geochemical and statistical tools to identify irrigated areas that might contain high selenium concentrations in surface water [ More info] Program using pattern recognition analysis and classification models to determine areas of irrigated land with concentrations of selenium.
Alphabetical Index of Topics
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