Palila Restoration: Lessons from Long-term Research
Water Resources Division, U.S. Geological Survey
2006, Fact Sheet 2006-3104
BACKGROUND The palila (Loxioides bailleui) is a member of the Hawaiian honeycreeper family of birds (Drepanidinae), which is renowned for the profusion of species - many with bizarre bills and specialized feeding habits - that radiated from a single ancestral type. Most of the 57 or so honeycreeper species are extinct,...
Documentation of the Unsaturated-Zone Flow (UZF1) Package for modeling Unsaturated Flow Between the Land Surface and the Water Table with MODFLOW-2005
Richard G. Niswonger, David E. Prudic, R. Steven Regan
2006, Techniques and Methods 6-A19
Percolation of precipitation through unsaturated zones is important for recharge of ground water. Rain and snowmelt at land surface are partitioned into different pathways including runoff, infiltration, evapotranspiration, unsaturated-zone storage, and recharge. A new package for MODFLOW-2005 called the Unsaturated-Zone Flow (UZF1) Package was developed to simulate water flow and...
A tectonic model for the spatial occurrence of porphyry copper and polymetallic vein deposits - applications to Central Europe
Lawrence J. Drew
2006, Scientific Investigations Report 2005-5272
A structural-tectonic model, which was developed to assess the occurrence of undiscovered porphyry copper deposits and associated polymetallic vein systems for the Matra Mountains, Hungary, has been expanded here and applied to other parts of central Europe. The model explains how granitoid stocks are emplaced and hydrothermal fluids flow within...
Report of the USGS Coastal and Marine Geology Modeling Workshop, Pacific Marine Science Center, Santa Cruz, CA, March 22-23, 2005
Christopher R. Sherwood
2006, Open-File Report 2005-1193
A U.S. Geological Survey (USGS) Coastal and Marine Geology (CMG) Modeling Workshop was held to discuss the general topic of coastal modeling, defined broadly to include circulation, waves, sediment transport, water quality, ecology, sediment diagenesis, morphology change, and coastal evolution, on scales ranging from seconds and a few centimeters (individual...
Annual trace-metal load estimates and flow-weighted concentrations of cadmium, lead, and zinc, in the Spokane River basin, Idaho and Washington, 1999-2004
Mary M. Donato
2006, Scientific Investigations Report 2006-5188
Streamflow and trace-metal concentration data collected at 10 locations in the Spokane River basin of northern Idaho and eastern Washington during 1999-2004 were used as input for the U.S. Geological Survey software, LOADEST, to estimate annual loads and mean flow-weighted concentrations of total and dissolved cadmium, lead, and zinc.<p...
Investigating the role of gas bubble formation and entrapment in contaminated aquifers: Reactive transport modelling
Richard T. Amos, K. Ulrich Mayer
2006, Journal of Contaminant Hydrology (87) 123-154
In many natural and contaminated aquifers, geochemical processes result in the production or consumption of dissolved gases. In cases where methanogenesis or denitrification occurs, the production of gases may result in the formation and growth of gas bubbles below the water table. Near the water table, entrapment of atmospheric gases...
Stability of Landsat-4 thematic mapper outgassing models
Esad Micijevic, Gyanesh Chander
2006, Conference Paper
Oscillations in radiometric gains of the short wave infrared (SWIR) bands in Landsat-4 (L4) and Landsat-5 (L5) Thematic Mappers (TMs) are observed through an analysis of detector responses to the Internal Calibrator (IC) pulses. The oscillations are believed to be caused by an interference effect due to a contaminant film...
Geologic interpretation and multibeam bathymetry of the sea floor in southeastern Long Island Sound
Lawrence J. Poppe, Seth D. Ackerman, Elizabeth F. Doran, Marc S. Moser, Helen F. Stewart, Nicholas A. Forfinski, Uther L. Gardner, Jennifer A. Keene
2006, Open-File Report 2006-1059
Digital terrain models (DTMs) produced from multibeam echosounder (MBES) bathymetric data provide valuable base maps for marine geological interpretations (e.g. Todd and others, 1999; Mosher and Thomson, 2002; ten Brink and others, 2004; Poppe and others, 2006a,b). These maps help define the geological variability of the sea floor (one of...
Science for maintaining riverine ecosystems: Actions for the USGS identified in the workshop "Analysis of Flow and Habitat for Aquatic Communities"
Kenneth E. Bencala, David B. Hamilton, James H. Petersen
2006, Open-File Report 2006-1256
Federal and state agencies need improved scientific analysis to support riverine ecosystem management. The ability of the USGS to integrate geologic, hydrologic, chemical, geographic, and biological data into new tools and models provides unparalleled opportunities to translate the best riverine science into useful approaches and usable information to address issues...
Survival estimates of migrant juvenile Salmonids through Bonneville Dam using radio telemetry, 2004
Timothy D. Counihan, Jill Hardiman, Chris Walker, Amy Puls, Glen Holmberg
2006, Report
During 2004, the USGS evaluated the survival of radio-tagged yearling and subyearling Chinook salmon and steelhead trout through the ice and trash sluiceway and the minimum gap runner (MGR) turbine unit at Bonneville Dam’s powerhouse 1. Survival was estimated using paired release-recapture models with paired releases made directly into these...
Seaside, Oregon tsunami pilot study— Modernization of FEMA flood hazard maps
Tsunami Pilot Study Working Group
2006, Open-File Report 2006-1234
FEMA Flood Insurance Rate Map (FIRM) guidelines do not currently exist for conducting and incorporating tsunami hazard assessments that reflect the substantial advances in tsunami research achieved in the last two decades; this conclusion is the result of two FEMA-sponsored workshops and the associated Tsunami Focused Study. Therefore, as part...
Geodetic observations of post-seismic transients in the context of the earthquake deformation cycle
Kurt L. Feigl, Wayne R. Thatcher
2006, Comptes Rendus - Geoscience (338) 1012-1028
Satellite geodetic techniques that can measure displacements with millimeter-level accuracy reveal transient signals in the deformation fields produced by both moderate and large earthquakes. These post-seismic signals exhibit characteristic time scales ranging from weeks to decades and distance scales from hundreds of meters to hundreds of kilometers. By considering them...
A conceptual model of ground-water flow in the eastern Snake River Plain aquifer at the Idaho National Laboratory and vicinity with implications for contaminant transport
Daniel J. Ackerman, Gordon W. Rattray, Joseph P. Rousseau, Linda C. Davis, Brennon R. Orr
2006, Scientific Investigations Report 2006-5122
Ground-water flow in the west-central part of the eastern Snake River Plain aquifer is described in a conceptual model that will be used in numerical simulations to evaluate contaminant transport at the Idaho National Laboratory (INL) and vicinity. The model encompasses an area of 1,940 square miles (mi2) and includes...
Comment on "Asymmetric coevolutionary networks facilitate biodiversity maintenance"
J. Nathaniel Holland, Toshinori Okuyama, Donald L. DeAngelis
2006, Science (313) 1887
Bascompte et al. (Reports, 21 April 2006, p. 431) used network asymmetries to explain mathematical conditions necessary for stability in historic models of mutualism. The Lotka-Volterra equations they used artificially created conditions in which some factor, such as asymmetric interaction strengths, is necessary for community coexistence. We show that a more...
A standard protocol for describing individual-based and agent-based models
Volker Grimm, Uta Berger, Finn Bastiansen, Sigrunn Eliassen, Vincent Ginot, Jarl Giske, John Goss-Custard, Tamara Grand, Simone K. Heinz, Geir Huse, Andreas Huth, Jane U. Jepsen, Christian Jorgensen, Wolf M. Mooij, Birgit Muller, Guy Pe’er, Cyril Piou, Steven F. Railsback, Andrew M. Robbins, Martha M. Robbins, Eva Rossmanith, Nadja Ruger, Espen Strand, Sami Souissi, Richard A. Stillman, Rune Vabo, Ute Visser, Donald L. DeAngelis
2006, Ecological Modelling (198) 115-126
Simulation models that describe autonomous individual organisms (individual based models, IBM) or agents (agent-based models, ABM) have become a widely used tool, not only in ecology, but also in many other disciplines dealing with complex systems made up of autonomous entities. However, there is no standard protocol for describing such...
Range expansion of an exotic Siberian prawn to the Lower Snake River
Craig A. Haskell, Rex D. Baxter, Kenneth F. Tiffan
2006, Northwest Science (80) 311-316
The introduction of non-native plant and animal species in aquatic systems is of increasing concern because of their potentially negative ecological and economic impacts (Sytsma et al. 2004). There are many examples of food web repercussions resulting from non-native invertebrate introductions. For example, in Flathead Lake, Montana, the kokanee salmon...
Hydraulic and solute-transport properties and simulated advective transport of contaminated ground water in a fractured-rock aquifer at the Naval Air Warfare Center, West Trenton, New Jersey, 2003
Jean C. Lewis-Brown, Glen B. Carleton, Thomas E. Imbrigiotta
2006, Scientific Investigations Report 2005-5049
Volatile organic compounds, predominantly trichloroethylene and its degradation products, have been detected in ground water at the Naval Air Warfare Center (NAWC), West Trenton, New Jersey. An air-stripping pump-and-treat system has been in operation at the NAWC since 1998. An existing ground-water-flow model was used to evaluate the effect of...
Estimated flood-inundation mapping for the Lower Blue River in Kansas City, Missouri, 2003-2005
Brian P. Kelly, Paul H. Rydlund Jr.
2006, Scientific Investigations Report 2006-5089
The U.S. Geological Survey, in cooperation with the city of Kansas City, Missouri, began a study in 2003 of the lower Blue River in Kansas City, Missouri, from Gregory Boulevard to the mouth at the Missouri River to determine the estimated extent of flood inundation in the Blue River valley...
Methodology to evaluate the effect of sorption in the unsaturated zone on the storage of nitrate and other ions and their transport across the water table, southern New Jersey
Timothy J. Reilly, Arthur L. Baehr
2006, Scientific Investigations Report 2006-5074
A new field-based approach for determining sorption in the unsaturated zone and its effect on the storage of ions and their transport in recharge to ground water has been demonstrated for a small agricultural watershed in the Coastal Plain of southern New Jersey. Moisture-content and chemical-concentration data obtained from unsaturated-zone-core...
Geologic map of the Kings Mountain and Grover quadrangles, Cleveland and Gaston Counties, North Carolina, and Cherokee and York Counties, South Carolina
J. Wright Horton Jr.
2006, Open-File Report 2006-1238
This geologic map of the Kings Mountain and Grover 7.5-minute quadrangles, N.C.-S.C., straddles a regional geological boundary between the Inner Piedmont and Carolina terranes. The Kings Mountain sequence (informal name) on the western flank of the Carolina terrane in this area includes the Neoproterozoic Battleground and Blacksburg Formations. The Battleground...
Preliminary surficial geologic map database of the Amboy 30 x 60 minute quadrangle, California
David R. Bedford, David M. Miller, Geoffrey A. Phelps
2006, Open-File Report 2006-1165
The surficial geologic map database of the Amboy 30x60 minute quadrangle presents characteristics of surficial materials for an area approximately 5,000 km2 in the eastern Mojave Desert of California. This map consists of new surficial mapping conducted between 2000 and 2005, as well as compilations of previous surficial mapping. Surficial...
Monitoring and modeling to predict Escherichia coli at Presque Isle Beach 2, City of Erie, Erie County, Pennsylvania
Tammy M. Zimmerman
2006, Scientific Investigations Report 2006-5159
The Lake Erie shoreline in Pennsylvania spans nearly 40 miles and is a valuable recreational resource for Erie County. Nearly 7 miles of the Lake Erie shoreline lies within Presque Isle State Park in Erie, Pa. Concentrations of Escherichia coli (E. coli) bacteria at permitted Presque Isle beaches occasionally exceed...
Sources of water to wells in updip areas of the Wenonah-Mount Laurel aquifer, Gloucester and Camden Counties, New Jersey
Martha K. Watt, Lois M. Voronin
2006, Scientific Investigations Report 2005-5250
Since 1996, when the New Jersey Department of Environmental Protection (NJDEP) restricted ground-water withdrawals from the Potomac-Raritan-Magothy aquifer system in the southern New Jersey Coastal Plain as a result of excessive drawdown, Coastal Plain communities have been interested in developing alternate sources of water supply for their residents. The use...
Water-level decline in the Apalachicola River, Florida, from 1954 to 2004, and effects on floodplain habitats
Helen M. Light, Kirk R. Vincent, Melanie R. Darst, Franklin D. Price
2006, Scientific Investigations Report 2006-5173
From 1954 to 2004, water levels declined in the nontidal reach of the Apalachicola River, Florida, as a result of long-term changes in stage-discharge relations. Channel widening and deepening, which occurred throughout much of the river, apparently caused the declines. The period of most rapid channel enlargement began in 1954...
MODGRASS: Update of a ground-water flow model for the central part of the western San Joaquin Valley, California
Charles F. Brush, Kenneth Belitz, Steven P. Phillips, Karen R. Burow, Donna L. Knifong
2006, Scientific Investigations Report 2005-5290
No abstract available....
