Phenomena affecting or occurring within the mass of gases that surrounds the earth, including its physics, chemistry, dynamics, and weather conditions.
Review of a study monitoring changes in salinity in Alligator Bay, NC during a 1996 hurricane due to the influx of fresh and saltwater and the effect it would have on oyster aquaculture.
Report on the hypothesis that variations of the total solar irradiance reaching the Earth and its atmosphere affect the precipitation and runoff of the western U.S. Includes links to research papers, bibliography, and climatic data.
Study of the relationship of changes in total solar irradiance to changes in regional precipitation in the western United States as affected by water circulation in the Pacific Ocean.
In 1931, the USGS established a statewide network of wells in Pennsylvania to monitor water-level fluctuations. This network consists of 68 wells to monitor ground water conditions during droughts. Links to ground-water data, hydrographs, and levels.
Lead page for detailed United States surface water information with links to real-time and historic streamflow data, suspended sediment data, USGS programs and facilities, publications, techniques, and featured news releases.
Photos, publicatons and recordbreaking flood peaks from the flood that included 9 states, the Mississippi and Missouri Rivers, and completely inundated 75 towns.
Booklet (PDF format) on the Pleistocene glaciations known as the Great Ice Age and the resulting geomorphological, climatic, and environmental changes that occurred on Earth during the period.
Summary of a circular on USGS environmental research and Chesapeake Bay with links to full document. Includes discussion of the problems of the estuary, restoration efforts, water quality, and effects on ecosystem.
U.S. Department of the Interior |
U.S. Geological Survey