Anita Williams
2000, Open-File Report 2000-5
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accurateValerie F. Paskevich
2000, Open-File Report 2000-19
No abstract available....
Randy L. Ulery
2000, Fact Sheet 101-00
The 1996 Amendments to the Safe Drinking Water Act require, for the first time, that each state prepare a source water assessment for all PWS. Previously, Federal regulations focused on sampling and enforcement with emphasis on the quality of delivered water. These Amendments emphasize the importance of protecting the source...
D. E. Boleneus, R. E. Derkey
2000, Open-File Report 2000-14-A
This report includes a table of 339 sites representing mineral activities for mining and mineral exploration in the State of Washington from 1985 through 1997. The table was primarily compiled from annual reports in Washington Geologic Newsletter and Washington Geology. The information was compiled for use in a weights-of-evidence analysis...
E.A. Merewether, Donald L. Gautier
2000, Bulletin 1917-U
Unusual, concretion-bearing mudrocks of early Late Cretaceous age, which were deposited in an early Cenomanian epeiric sea, have been recognized at outcrops in eastern Wyoming and in adjoining areas of Montana, South Dakota, Nebraska, and Colorado. In Johnson County, Wyo., on the western flank of the Powder River Basin, these...
Robert H. Abrams , Keith Loague
2000, Water Resources Research (36) 2015-2029
This paper, the second of two parts [see Abrams and Loague, this issue], reports the field‐scale application of COMPTRAN (compartmentalized solute transport model) for simulating the development of redox zones. COMPTRAN is fully developed and described in the companion paper. Redox zones, which are often delineated by the relative concentrations of...
Patrick J. Emmons, Phillip R. Bowman
2000, Fact Sheet 179-99
Ground water is the principal source of water for public and self-supplied domestic use in Nebraska. Ground water supplied about 235 Mgal/d (million gallons per day) in 1990, or about 78 percent of the estimated public-water supply in Nebraska. In addition, ground water supplied about 1,017 Mgal/d, or about 83...
Water Resources Division, U.S. Geological Survey
2000, Fact Sheet 094-00
Ingrid M. Verstraeten
2000, Fact Sheet 078-00
Mary Jo Baedecker, Linda C. Friedman
2000, Fact Sheet 165-99
Matthew C. Larsen, Robert F. Stallard
2000, Fact Sheet 163-99
Water Resources Division, U.S. Geological Survey
2000, Fact Sheet 083-00
The U.S. Geological Survey's (USGS) Earth Explorer Web site provides access to millions of land-related products, including the following: Satellite images from Landsat, advanced very high resolution radiometer (AVHRR), and Corona data sets. Aerial photographs from the National Aerial Photography Program, NASA, and USGS data sets. Digital cartographic data from...
Mitchell Lyle, Itaru Koizumi, Margaret L. Delaney, John A. Barron
2000, Proceedings of the Ocean Drilling Program: Scientific Results 167-32
During Ocean Drilling Program Leg 167, the California continental margin was drilled from about 30°N to 42°N to sample high-resolution paleoceanographic and paleoclimatic records in the California Current system. Because of typically high sedimentation rates along the margin (80 to >200 m/m.y.), drilling has proved...
F. Russell Cole, Lloyd L. Loope, Arthur C. Medeiros, Cameron E. Howe, Laurel J. Anderson
2000, Pacific Science (54) 313-329
Mus musculus and Rattus rattus are ubiquitous consumers in the high-elevation shrubland of Haleakala National Park. Food habits of these two rodent species were determined from stomach samples obtained by snaptrapping along transects located at four different elevations during November 1984 and February, May, and August 1985. Mus musculus fed...
Donald A. Goolsby
2000, Eos, Transactions, American Geophysical Union (81) 321-327
An expanding hypoxic zone develops each spring and summer on the Louisiana-Texas shelf of the Gulf of Mexico, and nitrogen from the Mississippi River Basin has been implicated as one of the principal causes. Hypoxic conditions, which occur when dissolved oxygen concentrations are less than 2 mg/L, can cause stress...
James Vogelmann, James D. Wickham
2000, Technical Report EPA/600/R-00/051
As environmental programs within and outside the federal government continue to move away from point-based studies to larger and larger spatial (not cartographic) scale, the need for land-cover and other geographic data have become ineluctable. The national land-cover mapping project of MRLC marks the first consistently classified conterminous land-cover data...
Mace G. Barron, Michael J. Anderson, Dave Cacela, Joshua Lipton, Swee J. Teh, David E. Hinton, Judith T. Zelikoff, Audrey L. Dikkeboom, Donald E. Tillitt, Mark Holey, Nancy Denslow
2000, Journal of Great Lakes Research (26) 250-271
Adult walleye were collected from several locations in the Lower Fox River and Green Bay, Wisconsin (the assessment area) and two relatively uncontaminated reference locations (Lake Winnebago and Patten Lake, Wisconsin) between July and October in 1996 and 1997. Whole body and liver samples collected in 1996 were analyzed for...
Anthony Ricciardi, William W.M. Steiner, Richard N. Mack, Daniel Simberloff
2000, BioScience (50) 239-244
The growing frequency and impact of biological invasions worldwide threaten biodiversity, ecosystem functioning, resource availability, national economies, and human health (Ruesink et al. 1995, Simberloff 1996, Vitousek et al. 1997). Organisms are spreading into new regions at unprecedented rates. As a result, hundreds to thousands of nonindigenous...
L.M. Southwick, Richard A. Rebich, J.L. Fouss, Jeffery A. Ballweber
2000, Conference Paper, Thirtieth Mississippi water resources conference, 2000
no abstract available....
Bonnie J. Buratti, Timothy H. McConnochie, Sascha B. Calkins, John K. Hillier, Kenneth E. Herkenhoff
2000, Icarus (146) 98-117
Lunar Transient Phenomena (LTP) have been reported for at least 450 years. The events range from bright flashes, to reddish or bluish glows, to obscurations. Gaseous spectra and photometric measurements of the events have been obtained. Several theories have been offered as explanations for LTP, including residual volcanic activity or...
Martin B. Goldhaber, Elise R. Irwin, J. Brian Atkins, Robert Lopaka Lee, Humbert Zappia, Dee Dee Black, Robert B. Finkleman
Jose A. Centeno, editor(s)
2000, Book chapter, Metal Ions in Biology and Medicine - Proceedings of the Sixth International Symposium on Metal Ions in Biology and Medicine held in San Juan, Puerto Rico, USA, on May 7-10 2000
No absstract available....
Ruth A. Harris
2000, Geotimes (45) 15-15
Peter Lyttle, John Pallister, James R. Robertson
2000, Geotimes (45) 27-30
Thomas E. Reilly, Keith R. Prince, James W. LaBaugh
2000, Geotimes (45) 23-23
Randolph L. Kirk, Elpitha Howington-Kraus, Mark R. Rosiek
2000, Conference Paper, Proceedings of XIXth ISPRS Congress Technical Commission IV: Mapping and Geographic Systems
We are currently using stereophotogrammetric techniques to compile digital topographic models of parts of the Moon, Mars, Venus, and the asteroid Eros in support of the NASA program of planetary exploration. This work requires the synergistic use of the USGS digital cartographic software system ISIS for data ingestion and calibration...