Testing a full‐range soil‐water retention function in modeling water potential and temperature
Brian J. Andraski, Elizabeth A. Jacobson
2000, Water Resources Research (36) 3081-3089
Recent work has emphasized development of full‐range water‐retention functions that are applicable under both wet and dry soil conditions, but evaluation of such functions in numerical modeling has been limited. Here we show that simulations using the Rossi‐Nimmo (RN) full‐range function compared favorably with those using the common Brooks‐Corey function...
Regional interdisciplinary paleoflood approach to assess extreme flood potential
Robert D. Jarrett, Edward M. Tomlinson
2000, Water Resources Research (36) 2957-2984
In the past decade, there has been a growing interest of dam safety officials to incorporate a risk‐based analysis for design‐flood hydrology. Extreme or rare floods, with probabilities in the range of about 10−3 to 10−7 chance of occurrence per year, are of continuing interest to the hydrologic and engineering communities for...
Detection of Sub-Micron Radiation from the Surface of Venus by Cassini/VIMS
K. H. Baines, G. Bellucci, J.-P. Bibring, R. H. Brown, B. J. Buratti, E. Bussoletti, F. Capaccioni, P. Cerroni, R. N. Clark, A. Coradini, D. P. Cruikshank, P. Drossart, V. Formisano, R. Jaumann, Y. Langevin, D. L. Matson, T. B. McCord, V. Mennella, R.M. Nelson, P. D. Nicholson, B. Sicardy, Christophe Sotin, G. B. Hansen, J.J. Aiello, S. Amici
2000, Icarus (148) 307-311
We report the first detection and profile characterization of thermal emission from the surface of Venus at 0.85 and 0.90 ??m, observed in the first planetary spectrum acquired by the Visual-Infrared Mapping Spectrometer onboard the Cassini spacecraft en route to the Saturn system. The strength and shape of these two...
Characterization and disinfection by-product formation potential of natural organic matter in surface and ground waters from Northern Florida
Colleen E. Rostad, Jerry A. Leenheer, Brian Katz, Barbara S. Martin, Ted I. Noyes
2000, Conference Paper, Natural organic matter and disinfection by-products
Streamwaters in northern Florida have large concentrations of natural organic matter (NOM), and commonly flow directly into the ground water system through karst features, such as sinkholes. In this study NOM from northern Florida stream and ground waters was fractionated, the fractions characterized by infrared (IR) and nuclear magnetic resonance...
Early Agriculture in the eastern Grand Canyon of Arizona, USA
S.W. Davis, M. E. Davis, I. Lucchitta, R. Finkel, M. Caffee
2000, Geoarchaeology - An International Journal (15) 783-798
Abandoned fields in Colorado River alluvium in the eastern Grand Canyon show signs of primitive agriculture. Presence of maize pollen in association with buried soils near Comanche Creek suggests that farming began prior to 3130 yr B.P. Cotton pollen, identified in buried soils near Nankoweap Creek, dates to 1310 yr...
Single-dilution enzyme-linked immunosorbent assay for quantification of antigen-specific salmonid antibody
S.W. Alcorn, R.J. Pascho
2000, Journal of Veterinary Diagnostic Investigation (12) 245-252
An enzyme-linked immunosorbent assay (ELISA) was developed on the basis of testing a single dilution of serum to quantify the level of antibody to the p57 protein of Renibacterium salmoninarum in sockeye salmon (Oncorhynchus nerka). The levels of antibody were interpolated from a standard curve constructed by relating the optical densities (OD)...
Offshore-onshore correlation of upper Pleistocene strata, New Jersey Coastal Plain to continental shelf and slope
R. E. Sheridan, G.M. Ashley, K.G. Miller, J.S. Waldner, D. W. Hall, J. Uptegrove
2000, Conference Paper, Sedimentary Geology
High-resolution seismic reflection profiles (~ 1-5 m resolution), including Geopulse(TM), Uniboom(TM), minisparker, small air gun, and water gun sources, are used to trace the ?? 18O stage 5 portion of the outcropping Cape May Formation across the shelf to the continental slope. The ?? 18O stage 5/6 boundary identified at...
Geochemical and microbiological methods for evaluating anaerobic processes in an aquifer contaminated by landfill leachate
I.M. Cozzarelli, J.M. Suflita, G.A. Ulrich, S.H. Harris, M. A. Scholl, J.L. Schlottmann, S. Christenson
2000, Environmental Science & Technology (34) 4025-4033
...
A method for mapping apparent stress and energy radiation applied to the 1994 Northridge earthquake fault zone
Art McGarr, Joe B. Fletcher
2000, Geophysical Research Letters (27) 1953-1956
Using the Northridge earthquake as an example, we demonstrate a new technique able to resolve apparent stress within subfaults of a larger fault plane. From the model of Wald et al. (1996), we estimated apparent stress for each subfault using τa = (G/β)/2 where G is the modulus of rigidity,...
Transient groundwater-lake interactions in a continental rift: Sea of Galilee, Israel
S. Hurwitz, E. Stanislavsky, V. Lyakhovsky, H. Gvirtzman
2000, Geological Society of America Bulletin (112) 1694-1702
The Sea of Galilee, located in the northern part of the Dead Sea rift, is currently an intermediate fresh-water lake. It is postulated that during a short highstand phase of former Lake Lisan in the late Pleistocene, saline water percolated into the subsurface. Since its recession from the Kinarot basin...
Block coals from Indiana: Inferences on changing depositional environment
Maria Mastalerz, P.L. Padgett, C.F. Eble
2000, Conference Paper, International Journal of Coal Geology
Significant differences in coal petrography, palynology and coal quality were found between the Lower Block and Upper Block Coal Members (Brazil Formation, Pennsylvanian) in Daviess County, Indiana. The Lower Block Coal Member ranges in thickness from 51 to 74 cm and the Upper Block Coal Member ranges from 20 to...
Coastal erosion vs riverline sediment discharge in the Arctic shelfx seas
V. Rachold, M.N. Grigoriev, F.E. Are, Sean C. Solomon, E. Reimnitz, H. Kassens, M. Antonow
2000, International Journal of Earth Sciences (89) 450-459
This article presents a comparison of sediment input by rivers and by coastal erosion into both the Laptev Sea and the Canadian Beaufort Sea (CBS). New data on coastal erosion in the Laptev Sea, which are based on field measurements and remote sensing information and existing data on coastal erosion...
Kansas coal distribution, resources, and potential for coalbed methane
L. L. Brady
2000, The Compass: Earth Science Journal of Sigma Gamma Epsilon (75) 122-133
100 ft (>30 m)] determined from 32 different coal beds. Strippable coal resources at a depth <...
Seasonal estimates of riparian evapotranspiration using remote and in situ measurements
D.C. Goodrich, R. Scott, J. Qi, B. Goff, C.L. Unkrich, M. S. Moran, D. Williams, S. Schaeffer, K. Snyder, R. MacNish, T. Maddock, D. Pool, A. Chehbouni, D.I. Cooper, W.E. Eichinger, W.J. Shuttleworth, Y. Kerr, R. Marsett, W. Ni
2000, Conference Paper, Agricultural and Forest Meteorology
In many semi-arid basins during extended periods when surface snowmelt or storm runoff is absent, groundwater constitutes the primary water source for human habitation, agriculture and riparian ecosystems. Utilizing regional groundwater models in the management of these water resources requires accurate estimates of basin boundary conditions. A critical groundwater boundary...
Re-Os isotopic systematics of primitive lavas from the Lassen region of the Cascade arc, California
L. E. Borg, A.D. Brandon, M.A. Clynne, R.J. Walker
2000, Earth and Planetary Science Letters (177) 301-317
Rhenium-osmium isotopic systematics of primitive calc-alkaline lavas from the Lassen region appear to be controlled by mantle wedge processes. Lavas with a large proportion of slab component have relatively low Re and Os abundances, and have radiogenic Os and mid ocean ridge basalt-like Sr and Pb isotopic compositions. Lavas with...
Possible origin and significance of extension-parallel drainages in Arizona's metamophic core complexes
J.E. Spencer
2000, Geological Society of America Bulletin (112) 727-735
The corrugated form of the Harcuvar, South Mountains, and Catalina metamorphic core complexes in Arizona reflects the shape of the middle Tertiary extensional detachment fault that projects over each complex. Corrugation axes are approximately parallel to the fault-displacement direction and to the footwall mylonitic lineation. The core complexes are locally...
Mapping the petroleum system - An investigative technique to explore the hydrocarbon fluid system
L. B. Magoon, W.G. Dow
2000, AAPG Memoir (73) 53-68
Creating a petroleum system map includes a series of logical steps that require specific information to explain the origin in time and space of discovered hydrocarbon occurrences. If used creatively, this map provides a basis on which to develop complementary plays and prospects. The logical steps include the characterization of...
The effect of mineral bond strength and adsorbed water on fault gouge frictional strength
C.A. Morrow, Diane E. Moore, D.A. Lockner
2000, Geophysical Research Letters (27) 815-818
Recent studies suggest that the tendency of many fault gouge minerals to take on adsorbed or interlayer water may strongly influence their frictional strength. To test this hypothesis, triaxial sliding experiments were conducted on 15 different single-mineral gouges with various water-adsorbing affinities. Vacuum dried samples were sheared at 100 MPa,...
January 30, 1997 eruptive event on Kilauea Volcano, Hawaii, as monitored by continuous GPS
S. Owen, P. Segall, M. Lisowski, Asta Mikijus, M. Murray, M. Bevis, J. Foster
2000, Geophysical Research Letters (27) 2757-2760
A continuous Global Positioning System (GPS) network on Kilauea Volcano captured the most recent fissure eruption in Kilauea's East Rift Zone (ERZ) in unprecedented spatial and temporal detail. The short eruption drained the lava pond at Pu'u O' o, leading to a two month long pause in its on-going eruption....
Updated population metadata for United States historical climatology network stations
T.W. Owen, K. P. Gallo
2000, Journal of Climate (13) 4028-4033
The United States Historical Climatology Network (HCN) serial temperature dataset is comprised of 1221 high-quality, long-term climate observing stations. The HCN dataset is available in several versions, one of which includes population-based temperature modifications to adjust urban temperatures for the "heat-island" effect. Unfortunately, the decennial population metadata file is not...
Drifting invertebrates, stomach contents, and body conditions of juvenile rainbow trout from fall through winter in a Wyoming tailwater
D.G. Simpkins, W.A. Hubert
2000, Transactions of the American Fisheries Society (129) 1187-1195
We investigated the availability of drifting invertebrates and the stomach contents and body conditions of stocked (hatchery) and naturally spawned (wild) juvenile (20-25 cm total length) rainbow trout from fall through winter in the Big Horn River downstream from Boysen Dam in Wyoming. When the density and biomass of drifting...
Gulf sturgeon spawning migration and habitat in the Choctawhatchee River system, Alabama-Florida
Dewayne A. Fox, Joseph E. Hightower, Frank M. Parauka
2000, Transactions of the American Fisheries Society (129) 811-826
Information about spawning migration and spawning habitat is essential to maintain and ultimately restore populations of endangered and threatened species of anadromous fish. We used ultrasonic and radiotelemetry to monitor the movements of 35 adult Gulf sturgeon Acipenser oxyrinchus desotoi (a subspecies of the Atlantic sturgeon A. oxyrinchus) as they moved between Choctawhatchee...
Legacy of the California Gold Rush: Environmental geochemistry of arsenic in the southern Mother Lode Gold District
K. S. Savage, D.K. Bird, R. P. Ashley
2000, International Geology Review (42) 385-415
Gold mining activity in the Sierra Nevada foothills, both recently and during the California Gold Rush, has exposed arsenic-rich pyritic rocks to weathering and erosion. This study describes arsenic concentration and speciation in three hydrogeologic settings in the southern Mother Lode Gold District: mineralized outcrops and mine waste rock (overburden);...
Harvest and reporting rates of game-farm ring-necked pheasants
Duane R. Diefenbach, C.F. Riegner, T.S. Hardisky
2000, Wildlife Society Bulletin (28) 1050-1059
Many state natural resource agencies release ring-necked pheasants (Phasianus colchicus) for hunting, but the effectiveness of these programs has never been evaluated on a statewide basis. We conducted a reward-band study to estimate harvest, reporting, and survival rates of pheasants raised and released by the Pennsylvania Game Commission (PGC) for...
[Book Review] Sunrise to Paradise: The story of Mount Rainier National Park
D. L. Peterson
2000, Northwest Science (74) 83-83
No abstract available....
