The use of streambed temperature profiles to estimate the depth, duration, and rate of percolation beneath arroyos
James Constantz, Carole L. Thomas
1996, Water Resources Research (32) 3597-3602
Temporal variations in a streambed temperature profile between 30 and 300 cm beneath Tijeras Arroyo, New Mexico, were analyzed at 30-min intervals for 1990 to estimate the depth, duration, and rate of percolation during streamflows. The depth of percolation was clearly documented by the rapid response of the streambed temperature...
The 1993 Mississippi river flood: A one hundred or a one thousand year event?
B.D. Malamud, D.L. Turcotte, C.C. Barton
1996, Environmental & Engineering Geoscience (2) 479-486
Power-law (fractal) extreme-value statistics are applicable to many natural phenomena under a wide variety of circumstances. Data from a hydrologic station in Keokuk, Iowa, shows the great flood of the Mississippi River in 1993 has a recurrence interval on the order of 100 years using power-law statistics applied to partial-duration...
The combined use of 87Sr/86Sr and carbon and water isotopes to study the hydrochemical interaction between groundwater and lakewater in mantled karst
B. G. Katz, T.D. Bullen
1996, Geochimica et Cosmochimica Acta (60) 5075-5087
The hydrochemical interaction between groundwater and lakewater influences the composition of water that percolates downward from the surficial aquifer system through the underlying intermediate confining unit and recharges the Upper Floridan aquifer along highlands in Florida. The 87Sr/86Sr ratio along with the stable isotopes, D, 18O, and 13C were used as tracers...
The deethylatrazine/atrazine ratio as an indicator of the onset of the spring flush of herbicides into surface water of the Midwestern United States
E.M. Thurman, J. D. Fallon
1996, International Journal of Environmental Analytical Chemistry (65) 203-214
The ratio of deethylatrazine to atrazine (DAR) may be used to record the first major runoff of herbicides from non-point-source corn fields to surface water in the Midwestern United States. The DAR dramatically decreases from ∼0.5 to < 0.1 upon application of herbicide and the first major runoff event of...
Isotope hydrology studies in the Szigetköz region, northwest Hungary
J. Deak, E. Deseo, J.K. Bohlke, K. Revesz
1996, Report, Isotopes in Water Resources Management
No abstract available....
Hydrologic evaluation methodology for estimating water movement through the unsaturated zone at commercial low-level radioactive waste disposal site
P.D. Meyer, M.L. Rockhold, W.E. Nichols, G.W. Gee
1996, Report
This report identifies key technical issues related to hydrologic assessment of water flow in the unsaturated zone at low-level radioactive waste (LLW) disposal facilities. In addition, a methodology for incorporating these issues in the performance assessment of proposed LLW disposal facilities is identified and evaluated. The issues discussed fall into...
Numerical evaluation of static-chamber measurements of soil-atmospheric gas exchange--Identification of physical processes
Richard W. Healy, Robert G. Striegl, Thomas F. Russell, Gordon L. Hutchinson, Gerald P. Livingston
1996, Soil Science Society of America Journal (60) 740-747
The exchange of gases between soil and atmosphere is an important process that affects atmospheric chemistry and therefore climate. The static-chamber method is the most commonly used technique for estimating the rate of that exchange. We examined the method under hypothetical field conditions where diffusion was the only mechanism for...
The importance of floodplain forests in the conservation and management of neotropical migratory birds in the Midwest
M. G. Knutson, J.P. Hoover, Erwin E. Klaas
Frank R. Thompson, editor(s)
1996, Book chapter, Management of Midwestern Landscapes for the Conservation of Neotropical Migratory Birds
Bottomland forests of the Central Forest Region of the Upper Midwest are found primarily on the floodplains of large rivers and include at least six types of forest communities. Birds breeding in bottomland forests are affected by extensive variation in latitude, climate, hydrology, forest succession, and change caused by...
Using remote sensing and GIS techniques to estimate discharge and recharge fluxes for the Death Valley regional groundwater flow system, USA
F. A. D’Agnese, C.C. Faunt, A. K. Turner
Kovar K.Nachtnebel H.P., editor(s)
1996, Application of geographic information systems in hydrology and water resources management. Proc. HydroGIS'96 conference, Vienna, 1996 503-511
The recharge and discharge components of the Death Valley regional groundwater flow system were defined by techniques that integrated disparate data types to develop a spatially complex representation of near-surface hydrological processes. Image classification methods were applied to multispectral satellite data to produce a vegetation map. The vegetation map was...
Use of 2D and 3D GIS in well selection and interpretation of nitrate data, central Nebraska, USA
Ingrid M. Verstraeten, V. L. McGuire, W.A. Battaglin
Kovar K.Nachtnebel H.P., editor(s)
1996, Application of geographic information systems in hydrology and water resources management. Proc. HydroGIS'96 conference, Vienna, 1996 585-591
Nonpoint-source contamination of the principal aquifers in an area of central Nebraska was evaluated utilizing aquifer condition, well depth, soil type, and physiographical and land use settings. A two-dimensional geographical information system linked with a three-dimensional geological visualization and analytical program was used in the random selection of acceptable wells...
Hydrologic modification to improve habitat in riverine lakes: Management objectives, experimental approach, and initial conditions
Barry L. Johnson, John W. Barko, Yuri Gerasimov, William F. James, Alexander Litvinov, Teresa J. Naimo, James G. Wiener, Robert F. Gaugush, James T. Rogala, Sara J. Rogers
R.A. Schoettger, editor(s)
1996, Book chapter, Problems of Aquatic Toxicology, Biotesting, and Water Quality Management
The Finger Lakes habitat-rehabilitation project is intended to improve physical and chemical conditions for fish in six connected back water lakes in Navigation Pool 5 of the upper Missouri River. The primary management objective is to improve water temperature, dissolved oxygen concentration and current velocity during winter for bluegills, Lepomis...
Uncertainties in assessing contaminant exposure from sediments
S. N. Luoma, N.S. Fisher
Gregory R. Biddinger, T. Dillon, C.G. Ingersoll, editor(s)
1996, Book chapter, Ecological risk assessments of contaminated sediments: SETAC special publication series
No abstract available....
The influence of spatial patterns of landcover and use on hydrological and ecosystem dynamics at the mountain plains interface in the Central United States
Jill Baron, D. S. Ojima, M.D. Hartman, Timothy G.F. Kittel, R.B. Lammers, L. Band, R. A. Pielke
1996, Conference Paper, Proceedings of IGBP/BAHC-LUCC Joints Inter-Core Projects Symposium
No abstract available....
U.S. Geological Survey Nitrogen-Cycling Workshop: Denver, Colorado October 30 - November 2, 1995
Frank J. Triska
Larry J. Puckett, editor(s)
1996, Open-File Report 96-477
No abstract available....
Analysis and simulation of ground-water flow in Lake Wales Ridge and adjacent areas of central Florida
Dann K. Yobbi
1996, Water-Resources Investigations Report 94-4254
The Lake Wales Ridge is an uplands recharge area in central Florida that contains many sinkhole lakes. Below-normal rainfall and increased pumping of ground water have resulted in declines both in ground-water levels and in the water levels of many of the ridge lakes. A digital flow model was developed...
Hydrology, water quality, and effects of drought in Monroe County, Michigan
J.R. Nicholas, Gary L. Rowe, J.R. Brannen
1996, Water-Resources Investigations Report 94-4161
Monroe County relies heavily on its aquifers and streams for drinking water, irrigation, and other ~ses; however, increased water use, high concentrations of certain constituents in ground water, and droughts may limit the availability of water resources. Although the most densely populated parts of the county use water from the...
Using a geographic information system and scanning technology to create high-resolution land-use data sets
Craig A. Harvey, Dana W. Kolpin, William A. Battaglin
1996, Water-Resources Investigations Report 96-4100
A geographic information system (GIS) procedure was developed to compile low-altitude aerial photography, digitized data, and land-use data from U.S. Department of Agriculture Consolidated Farm Service Agency (CFSA) offices into a high-resolution (approximately 5 meters) land-use GIS data set. The aerial photography consisted of 35-mm slides which were scanned into...
Ground Water Atlas of the United States: Segment 8, Montana, North Dakota, South Dakota, Wyoming
R.L. Whitehead
1996, Hydrologic Atlas 730-I
The States of Montana, North Dakota, South Dakota, and Wyoming compose the 392,764-square-mile area of Segment 8, which is in the north-central part of the continental United States. The area varies topographically from the high rugged mountain ranges of the Rocky Mountains in western Montana and Wyoming to the gently...
Near field receiving water monitoring of trace metals in clams (Macoma balthica) and sediments near the Palo Alto and San Jose/Sunnyvale Water Quality Control Plants in South San Francisco Bay: December 1994 - December 1995
S. N. Luoma, D.J. Cain, C. Brown, M. Hornberger, R. Bouse
1996, Open-File Report 96-203
No abstract available....
Water resources data, Massachusetts and Rhode Island, water year 1995
R.S. Socolow, L.Y. Comeau, R.G. Casey, L.R. Ramsbey
1996, Water Data Report MA-RI-95-1
Water resources data for the 1995 water year for Massachusetts and Rhode Island consists of records of stage, discharge, and water quality of streams; contents of lakes and reservoirs; and ground-water levels. This report contains discharge records for 87 gaging stations, monthend contents of 3 lakes and reservoirs, water quality...
Ground Water Atlas of the United States: Segment 4, Oklahoma, Texas
Paul D. Ryder
1996, Hydrologic Atlas 730-E
The two States, Oklahoma and Texas, that compose Segment 4 of this Atlas are located in the south-central part of the Nation. These States are drained by numerous rivers and streams, the largest being the Arkansas, the Canadian, the Red, the Sabine, the Trinity, the Brazos, the Colorado, and the...
Operation of hydrologic data-collection stations by the U.S. Geological Survey in 1995
Melvin Lew, Betty Dodds
1996, Open-File Report 96-132
Technology transfer opportunities: new development: computerized field manual provides valuable resource for hydrologic investigations
Paul Chapel
1996, Fact Sheet 195-96
The U.S. Geological Survey (USGS) is known throughout the world for conducting quality scientific investigation is hydrologic environments. Proper and consistent field techniques have been an integral part of this good research. Over the past few decades, the USGS has developed and published detailed, standard protocols for conducting studies in...
Geohydrology and potential water-supply development on Bumkin, Gallops, Georges, Grape, Lovell, and Peddocks Islands, eastern Massachusetts
John P. Masterson, Byron D. Stone, R.R. Rendigs
1996, Open-File Report 96-117
An investigation of the geohydrology and of the potential for water-supply development on several of the Boston Harbor Islands, eastern Massachusetts, was conducted to evaluate the possibility of developing a permanent small-capacity water supply to support recreational activities, such as camping, hiking, and swimming. The Boston Harbor Islands, including Bumkin,...
Vulnerability of public drinking water supplies in New Jersey to pesticides
Eric F. Vowinkel, R.M. Clawges, D.E. Buxton, D.A. Stedfast, J.B. Louis
1996, Fact Sheet 165-96
Beginning in 1993, Safe Drinking Water Act (SDWA) regulations required the 626 large community water systems in New Jersey to monitor their 2,600 wells and 45 surface-water intakes quarterly for 23 pesticides. Monitoring costs would increase consumers’ water bills by $6.4 million each year. The New Jersey Department of Environmental...
