Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

3813 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 129, results 3201 - 3225

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Modeling hurricane effects on mangrove ecosystems
Thomas W. Doyle
1997, Fact Sheet 095-97
Mangrove ecosystems are at their most northern limit along the coastline of Florida and in isolated areas of the gulf coast in Louisiana and Texas. Mangroves are marine-based forests that have adapted to colonize and persist in salty intertidal waters. Three species of mangrove trees are common to the United...
Volcanic Air Pollution - A Hazard in Hawai'i
Jeff Sutton, Tamar Elias, James W. Hendley II, Peter H. Stauffer
1997, Fact Sheet 169-97
Noxious sulfur dioxide gas and other pollutants emitted from Kilauea Volcano on the Island of Hawai'i react with oxygen and atmospheric moisture to produce volcanic smog (vog) and acid rain. Vog poses a health hazard by aggravating preexisting respiratory ailments, and acid rain damages crops and can leach lead into...
Regional ground-water flow directions and spring recharge areas in and near the Fort Leonard Wood Military Reservation, Missouri
Michael J. Kleeschulte, Jeffrey L. Imes
1997, Fact Sheet 101-97
Regional ground-water flow at the Fort Leonard Wood Military Reservation (FLWMR) generally is east and west away from a regional ground-water divide towards the Big Piney River and Roubidoux Creek. Ground-water flow in the northern FLWMR is strongly affected by solution-enlarged fractures and bedding planes in the Roubidoux Formation and...
Herbicides and nitrates in the Iowa River alluvial aquifer prior to changing land use, Iowa County, Iowa, 1996
Mark E. Savoca, Jennifer L. Tobias, Eric M. Sadorf, Trevor L. Birkenholtz
1997, Fact Sheet 085-97
The Iowa River alluvial aquifer in Iowa County, Iowa (fig. 1), underlies an area of intensive agricultural activity where pesticides and nitrogen-based fertilizers are extensively used. The effects of changing land use on shallow ground-water quality in part of the Iowa River alluvial aquifer are currently being investigated as part...
The USGS World Energy Program
Thomas S. Ahlbrandt
1997, Fact Sheet 007-97
The world has recently experienced rapid change to market-driven economies and increasing reliance on petroleum supplies from areas of political instability. The interplay of unprecedented growth of the global population, increasing worldwide energy demand, and political instability in two major petroleum exporting regions (the former Soviet Union and the Middle...
Volcanic ash - danger to aircraft in the north Pacific
Christina A. Neal, Thomas J. Casadevall, Thomas P. Miller, James W. Hendley II, Peter H. Stauffer
1997, Fact Sheet 030-97
The world's busy air traffic corridors pass over hundreds of volcanoes capable of sudden, explosive eruptions. In the United States alone, aircraft carry many thousands of passengers and millions of dollars of cargo over volcanoes each day. Volcanic ash can be a serious hazard to aviation even thousands of miles...
Organochlorine compounds and trace elements in streambed sediment and fish tissue, South Platte River Basin; Colorado, Nebraska, and Wyoming
Janet S. Heiny
1997, Fact Sheet 040-97
Concentration data for organochlorine compounds and trace elements in streambed sediment and fish tissue collected throughout the South Platte River Basin as part of the U.S. Geological Survey's National WaterQuality Assessment (NAWQA) Program were evaluated to determine the following: (1) which organochlorine compounds and trace elements occurred most frequently, (2)...