USGS: Science Topics: hydrology

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Hydrology

Branch of earth science that deals with water as it occurs in the atmosphere, on the surface of the ground, and underground.

Subtopics:
Hydrodynamics (3 items)

Hydrologic maps (28 items)

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Results 81 - 90 of 410 listed alphabetically [list by similarity]

Groundwater Resources of Ribeira Faja Basin, Island of Sao Nicolau, Cape Verde, West Africa [More info]: Lower precipitation and recharge, with deeper groundwater levels, suggest this basin will be less susceptible to contamination than others nearby, but may be susceptible to saltwater intrusion brought on by well pumping.
Groundwater Resources of Ribeira Paul Basin, Island of Santo Antao, Cape Verde, West Africa [More info]
Groundwater availability study for Guam; goals, approach, products, and schedule of activities [More info]: Process and plan to be used to provide reliable evaluations of the potential effects of groundwater production and help guide sustainable management of the resource.
Groundwater quality in the Coastal Los Angeles Basin, California [More info]: The occurrence of solvents in the groundwater is not correlated with current overlying land use and human activities. Rather, the solvents are from legacy industrial uses, and it has taken decades for the groundwater to move to where it is now pumped.
Groundwater quality in the San Fernando--San Gabriel groundwater basins, California [More info]: Organic solvents are the chief concern in this area, which has given rise to a systematic program of monitoring and water treatment. This study shows relatively recent results.
Groundwater resources of Mosteiros basin, island of Fogo, Cape Verde, west Africa [More info]: Shallow groundwater has good quality, but salinity measured in wells suggests the thin lens of freshwater under the coastal plain will be vulnerable to saltwater intrusion as a consequence of pumping.
Hawaii StreamStats; a web application for defining drainage-basin characteristics and estimating peak-streamflow statistics [More info]: Interactive maps providing selected analyses on areas you choose
Historic Flooding in South Georgia, March 27-April 3, 2009 [More info]: Explains the meteorological and hydrologic conditions that led to widespread flooding in this area.
Historic flooding in northern Georgia, September 16-22, 2009 [More info]: Explains the meteorological and hydrologic conditions that led to widespread flooding in this area.
Historical changes in annual peak flows in Maine and implications for flood-frequency analyses [More info]: Annual peak flows have increased at most rivers in Maine during the last century. What effect does this have on computed peak flows, such as the 100-year flows, that are used for designing bridges and other structures?

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