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Biological and physical processes
All continuing activities, functions, and phenomena associated with organisms and non-living matter.
Subtopics:
Atmospheric and climatic processes (166 items)
Coastal processes (32 items)
Ecological processes (100 items)
Estuarine processes (2 items)
Evolution (1 items)
Fires (24 items)
Geochemical processes (18 items)
Geologic processes (315 items)
Hydrologic processes (250 items)
Impact cratering (1 items)
Ocean processes (43 items)
Physiological processes (8 items)


Results 81 - 90 of 751 listed alphabetically [list by similarity]
Cascades Volcano Observatory - Learn about volcanoes [More info]
Educational volcano site providing answers to frequently asked volcano questions with links to other general information on volcanoes and to information on specific volcanoes including the Cascade Range volcanoes.
Cascades Volcano Observatory - Mount St. Helens real-time hydrologic monitoring [More info]
Real-time and historic data from gaging stations for water and mudflow detection in the Mount St. Helens, WA vicinity with data tables and plots, interactive location map and station descriptions.
Cascades Volcano Observatory educational outreach: Available videos [More info]
Description of videos on Mount St. Helens, Mount Rainier, and Mt. Hood, with information on obtaining copies.
Cascadia subduction zone: two contrasting models of lithospheric structure [More info]
Summary of an investigation of the Cascadia subduction zone with detailed density-modeling experiments of the crust and mantle along two transects across Vancouver Island and the Canadian margin and the other on the margin of central Oregon.
Central California /San Francisco Bay Earthquake Hazards Project [More info]
Information on earthquakes in central California and the San Francisco region with links to four types of field studies, deep seismic investigations, geotechnical investigations, shallow seismic imaging, and airborne geophysical surveys.
Changing Arctic Ecosystems-Measuring and forecasting the response of Alaska's terrestrial ecosystem to a warming climate [More info]
Combining genetic data with current and predicted climate scenarios, we are modeling the predicted future distributions of wildlife populations in the Arctic and identifying key environmental variables that determine important animal habitat.
PDF Characterization of Fish Creek, Teton County, Wyoming, 2004-08 [More info]
Preliminary results of hydrologic and biological sampling confirm anecdotal reports that this stream shows unusually high algal growth due to elevated nutrients, probably from groundwater.
Classification of natural ponds and lakes in the glaciated prairie region [More info]
Presents a wetland classification system that reflects seasonal, regional, and local variations in the environment.
Climate Change and Wildlife Health: Direct and Indirect Effects [More info]
Addresses geographic range and distribution of wildlife diseases, plant and animal phenology, wildlife host-pathogen interactions, and disease patterns in wildlife.
PDF Climate Variability and Change [More info]
This fact sheet focuses on climate variability and change and how USGS research can strengthen the Nation with information needed to meet the challenges of the 21st century.
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