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hydrologic subregion
Subtopics:
New England (14 items)
Mid Atlantic (13 items)
South Atlantic-Gulf (20 items)
Great Lakes (14 items)
Ohio (2 items)
Upper Mississippi (18 items)
Lower Mississippi (10 items)
Souris-Red-Rainy (2 items)
Missouri (9 items)
Arkansas-White-Red (2 items)
Texas-Gulf (3 items)
Rio Grande (2 items)
Upper Colorado (4 items)
Lower Colorado (8 items)
Great Basin (8 items)
Pacific Northwest (22 items)
California (33 items)
Alaska (2 items)
Results 11 - 20 of 174 listed alphabetically [list by similarity]
Boston Harbor Studies: the fate of sediments and contaminants in Massachusetts Bay [More info]
Boston Harbor/Massachusetts Bay Studies research project conducted as part of Boston Harbor cleanup to predict the fate of contaminants and sediments introduced to Massachusetts' coastal waters from sources that include Boston sewage outfall.
California Water-Quality Assessment [More info]
Results of activities in California conducted under the National Water-Quality Assessment Program (NAWQA): maps, publications and data.
California's BAY-DELTA: USGS Science Supports Decision Making [More info]
What causes changes in the hydrology, the ecology and the water quality of the Sacramento-San Joaquin River Delta and the San Francisco Bay estuary? These studies help state and local agencies manage resources well.
PDF California's Central Valley Groundwater Study: A Powerful New Tool to Assess Water Resources in California's Central Valley [More info]
Modeling effort that integrates a wide variety of geographic, hydrologic, agricultural, climatic, and biological information to help local land managers address resource use issues.
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.
Chesapeake Bay activities [More info]
Information on USGS studies of Chesapeake Bay, the nation's largest estuary, concerned with water quality, ecosystem history and change, vital habitat and biological resources, and land use studies.
Climate-Driven Ocean Changes Affect Estuaries [More info]
Research findings and examples of application to real problems--Pacific Ocean cooling triggers phytoplankton blooms in San Francisco Bay.
Coastal ocean modeling at the USGS Woods Hole Field Center [More info]
Fly-by and circulation movies, effluent concentration, tidal flushing, sea level, and temperature in Massachusetts Bay and Boston Harbor
Columbia Environmental Research Center (CERC) Ecology Branch [More info]
Overview of research of the Ecology Branch on the ecological consequences of habitat degradation due to altered environment, nonindigenous species, and atmospheric alterations. Includes links to staff and research projects.
Columbia River USGS Interdisciplinary Science Explorer WebSite [More info]
Web site for an Internet Map Service (IMS) serving base cartographic data, USGS data, science applications and real time modelling analyses for the Columbia River basin using geospatial analysis technology.
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