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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 (89 items)
Ecological processes (87 items)
Fires (12 items)
Geologic processes (244 items)
Geochemical processes (9 items)
Ocean processes (17 items)
Physiological processes (8 items)
Hydrologic processes (163 items)
Evolution (1 items)
Impact cratering (3 items)
Results 51 - 60 of 519 listed by similarity [list alphabetically]
Cascades Volcano Observatory - Mount St. Helens real-time hydrologic monitoring [New Window]
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 [New Window]
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 [New Window]
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 [New Window]
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.
Central Region [New Window]
Entry to USGS Central Region programs with links to Biological Resources, Geology, National Mapping, Water Resources, Office of Central Region Services, emergency information, and records of a Rockies field trip, and clickable map to state programs.
Classification of natural ponds and lakes in the glaciated prairie region [New Window]
Presents a wetland classification system that reflects seasonal, regional, and local variations in the environment.
Climate and droughts [New Window]
Article from Water Supply Paper 2375 summarizing the correlation of precipitation, temperature, and atmospheric moisture with the frequency and intensity of a drought.
Climate of North Dakota: blizzards [New Window]
Reviews the causes and frequency of blizzards in North Dakota.
Climate of North Dakota: severe storms [New Window]
Reviews frequency and distribution of tornadoes, windstorms, and hailstorms in North Dakota.
Climate-Driven Ocean Changes Affect Estuaries [New Window]
Research findings and examples of application to real problems--Pacific Ocean cooling triggers phytoplankton blooms in San Francisco Bay.
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