USGS - science for a changing world

Science Topics

Maps, Imagery, and Publications Hazards Newsroom Education Jobs Partnerships Library About USGS Podcasts/RSS
You are here: Topics
Help
Biological and physical processes
All continuing activities, functions, and phenomena associated with organisms and non-living matter.
Subtopics:
Atmospheric and climatic processes (166 items)
Ecological processes (100 items)
Fires (24 items)
Geologic processes (314 items)
Geochemical processes (17 items)
Ocean processes (43 items)
Coastal processes (32 items)
Estuarine processes (2 items)
Physiological processes (8 items)
Hydrologic processes (250 items)
Evolution (1 items)
Impact cratering (1 items)
Results 31 - 40 of 741 listed by similarity [list alphabetically]
A Magnitude 7.1 Earthquake in the Tacoma Fault Zone-A Plausible Scenario for the Southern Puget Sound Region, Washington [More info]
Scientific description of the likely effects of a significant earthquake on this densely populated area.
PDF A science strategy to support management decisions related to hypoxia in the northern Gulf Of Mexico and excess nutrients in the Mississippi River Basin [More info]
The report describes a strategy for monitoring, modeling, and research activities to support management decisions to improve water-quality conditions in the Mississippi River Basin, reduce hypoxia in the northern Gulf of Mexico, and improve conditions for
PDF A spatial analysis of cultural ecosystem service valuation by regional stakeholders in Florida: a coastal application of the social values for ecosystem services (SolVES) tool [More info]
Research project to close gaps in our knowledge about the attitudes and perceptions, or nonmonetary values, held by coastal residents for ecosystem services, particularly for cultural services.
PDF A volcano rekindled; the renewed eruption of Mount St. Helens, 2004-2006 [More info]
PDF A westward extension of the tropical Pacific warm pool leads to March through June drying in Kenya and Ethiopia [More info]
Analysis of sea-surface temperature in the Indian Ocean shows that warming correlates with east African rainfall; the effect on atmospheric convection and precipitation over the Indian Ocean is greater than that associated with El Niño (ENSO).
Access USGS - San Francisco Bay and Delta [More info]
Main page for accessing links for information and data on the San Francisco Bay estuary and its watershed with links to highlights, water, biology, wetlands, hazards, digital maps, geologic mapping, winds, bathymetry and overview of the Bay.
Acid rain and our Nation's Capital [More info]
Describes noticeable effects of acid rain on the building stones and monuments in Washington, DC.
PDF Acid rain effects on Adirondack streams - results from the 2003-05 western Adirondack stream survey (the WASS Project) [More info]
Acidified soils caused toxic aluminum in 66 percent of 565 assessed streams. Diatoms and aquatic macroinvertebrates were moderately to severely affected. These effects have not improved in areas surveyed in the early 1980s
PDF Acid Rain in Shenandoah National Park, Virginia [More info]
Explains acidity and acid rain and how it affects aquatic organisms. Describes the effect of acid rain on this national park, identifying areas that are at greater or lesser risk from acid rain.
Acute toxicity database [More info]
The following database summarizes the results from aquatic acute toxicity tests conducted by the USGS CERC located in Columbia, Missouri.
Result pages:Previous 1 2 3 4 5 6 7 8 9 ... NextAll
Alphabetical Index of Topics a b c d e f g h i j k l m n o p q r s t u v w x y z

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.usgs.gov/science//science/science.php?term=101&b=30&n=10
Page Contact Information: Ask USGS