Data for giant constrictors - Biological management profiles and an establishment risk assessment for nine large species of pythons, anacondas, and the boa constrictor [ More info] Locations for nine species of large constrictors, from published sources, along with monthly precipitation and average monthly temperature for those locations. Shapefiles for each snake species studied.
Biomarker Benchmarks: Reproductive and Endocrine Biomarkers in Largemouth Bass and Common Carp from United States Waters [ More info] Describes a national reconnaissance study of reproductive health in two species of fish across the US. More than 2,200 common carp and 650 largemouth bass were collected at 119 rivers and streams.
Earthquakes in the central United States, 1699-2010 [ More info] Poster includes GIS data for earthquake locations in this seismically active area.
The Public Land Survey System (PLSS) [ More info] Explains the characteristics and history of this distinctive way of describing geographic position characteristic of the midwestern and western states of the US.
Land-cover change research at the U.S. Geological Survey-assessing our nation's dynamic land surface [ More info] Estimates of change in major types of land use and land cover from 1973 to 2000 should help model potential future change as climate, population, public policy, and technology change.
Application of the SPARROW watershed model to describe nutrient sources and transport in the Missouri River Basin [ More info] Maps and diagrams showing how the mathematical model predicts the distribution of various pollutants within a large watershed.
Regional assessments of the Nation's water quality--Improved understanding of stream nutrient sources through enhanced modeling capabilities [ More info] Studies of the sources, transport, and fate of nutrients in the streams of six major regions of the conterminous United States.
Science Goals of the U.S. Department of the Interior Southeast Climate Science Center [ More info] A list of research topics we expect to undertake, with a short statement for each one explaining the rationale and benefit of pursuing that goal.
A new tool to assess groundwater resources in the Mississippi embayment [ More info] Mathematical model of the groundwater system in this area includes 13 types of data and spans multiple aquifers over more than a century. This enables us to assess the quantity of groundwater, where and how it is being used, and how pumping affects it.
USGS Hydro-Climatic Data Network 2009 (HCDN?2009) [ More info] This updated subset of USGS streamgages for which the streamflow primarily reflects prevailing meteorological conditions for specified years, screened to exclude sites where human activity affects the natural flow of the watercourse.
Alphabetical Index of Topics
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