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.
Net Ecosystem Production (NEP) of the Great Plains, United States [ More info] Geographic analysis of the changes in storage and release of carbon in this large area as land use patterns, especially agriculture, have changed.
Geochemical and mineral maps from soils of the conterminous United States [ More info] Geochemical and mineralogical maps along with a histogram, boxplot, and empirical cumulative distribution function plot for each element or mineral whose data are provided in DS-801
Mississippi River flood: April 2001 [ More info] A large collection of photographs showing the historic flooding of the upper Mississippi River near LaCrosse, Wisconsin and points south during April of 2001. Includes video footage as well.
Alphabetical Index of Topics
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