A model for rotation and shape of Asteroid 9969 Braille from ground-based observations and images obtained during the deep space 1 (DS1) flyby
J. Oberst, S. Mottola, Martino M. Di, M. Hicks, B. Buratti, L. Soderblom, N. Thomas
2001, Icarus (153) 16-23
Image data from the DS1 encounter with Asteroid 9969 Braille and data from a coordinated ground-based photometric observing campaign are combined to study the physical properties of this small Mars crosser. From telescope data the object's brightness was found to vary by up to 0.5 mag from night to night,...
Transport processes near coastal ocean outfalls
M.A. Noble, C. R. Sherwood, Hooi-Ling Lee, J. Xu, P. Dartnell, G. Robertson, M. Martini
2001, Conference Paper, Oceans Conference Record (IEEE)
The central Southern California Bight is an urbanized coastal ocean where complex topography and largescale atmospheric and oceanographic forcing has led to numerous sediment-distribution patterns. Two large embayments, Santa Monica and San Pedro Bays, are connected by the short, very narrow shelf off the Palos Verdes peninsula. Ocean-sewage outfalls are...
Relation between fish communities and riparian zone conditions at two spatial scales
K. E. Lee, R. M. Goldstein, P. E. Hanson
2001, Journal of the American Water Resources Association (37) 1465-1473
The relation offish community composition to riparian cover at two spatial scales was compared at 18 streams in the agricultural Minnesota River Basin. The two spatial scales were: (1) local riparian zone (a 200 meter wide buffer extending 2 to 3 kilometers upstream of the sampling reach); and (2) the...
Chemical and engineering properties of fired bricks containing 50 weight percent of class F fly ash
I.-M. Chou, V. Patel, C.J. Laird, K.K. Ho
2001, Energy Sources (23) 665-673
The generation of fly ash during coal combustion represents a considerable solid waste disposal problem in the state of Illinois and nationwide. In fact, the majority of the three million tons of fly ash produced from burning Illinois bituminous coals is disposed of in landfills. The purpose of this study...
Processes of nickel and cobalt uptake by a manganese oxide forming sediment in Pinal Creek, Globe mining district, Arizona
J.T. Kay, M.H. Conklin, C. C. Fuller, P. A. O’Day
2001, Environmental Science & Technology (35) 4719-4725
A series of column experiments was conducted using manganese oxide coated sediments collected from the hyporheic zone in Pinal Creek (AZ), a metal-contaminated stream, to study the uptake and retention of Mn, Ni, and Co. Experimental variables included the absence (abiotic) and presence (biotic) of active Mn-oxidizing bacteria, the absence...
Effects of pool formation and flash flooding on relative abundance of young-of-year flannelmouth suckers in the Paria River, Arizona
Michele L. Thieme, Carole McIvor, Mark J. Brouder, Timothy L. Hoffnagle
2001, Regulated Rivers: Research & Management (17) 145-156
Flannelmouth sucker, Catostomus latipinnis, a fish endemic to the Colorado River basin in the western United States, appears to experience poor recruitment to adult size in the Colorado River, downstream of Glen Canyon Dam. Lack or impermanence of rearing areas for young-of-year (YOY) fish is hypothesized to be the problem. Knowing...
Secondary currents in a curved, stratified, estuarine channel
J.R. Lacy, Stephen G. Monismith
2001, Journal of Geophysical Research C: Oceans (106) 31283-31302
This paper presents a study of secondary circulation in a curved stratified channel in northern San Francisco Bay over a 12.5-hour tidal cycle. Secondary currents were strong at times (varying by up to 35 cm/s from top to bottom) but relatively transient, as the balance between centrifugal and lateral baroclinic...
Io in the near infrared: Near-Infrared Mapping Spectrometer (NIMS) results from the Galileo flybys in 1999 and 2000
R. M. C. Lopes, L.W. Kamp, S. Doute, W. D. Smythe, R. W. Carlson, A. S. McEwen, P.E. Geissler, S. W. Kieffer, F.E. Leader, A. G. Davies, E. Barbinis, R. Mehlman, M. Segura, J. Shirley, L.A. Soderblom
2001, Journal of Geophysical Research E: Planets (106) 33053-33078
Galileo's Near-Infrared Mapping Spectrometer (NIMS) observed Io during the spacecraft's three flybys in October 1999, November 1999, and February 2000. The observations, which are summarized here, were used to map the detailed thermal structure of active volcanic regions and the surface distribution of SO2 and to investigate the origin of a...
U-Pb age of the Diana Complex and Adirondack granulite petrogenesis
A. R. Basu, W. R. Premo
2001, Proceedings of the Indian Academy of Sciences - Earth and Planetary Sciences (110) 385-395
U-Pb isotopic analyses of eight single and multi-grain zircon fractions separated from a syenite of the Diana Complex of the Adirondack Mountains do not define a single linear array, but a scatter along a chord that intersects the Concordia curve at 1145 ± 29 and 285 ± 204 Ma. For...
Spatial analysis on the occurrence of Pneumocystis carinii in the shrew Notiosorex crawfordi in fragmented landscape in southern California
Juha Laakkonen, Robert N. Fisher, Ted J. Case
2001, Journal of Eukaryotic Microbiology (48) 111s-112s
No abstract available....
Geologic history of the polar regions of Mars based on Mars Global surveyor data. II. Amazonian period
E.J. Kolb, K. L. Tanaka
2001, Icarus (154) 22-39
Based on Mars Orbiter Laser Altimeter (MOLA) and Mars Orbiter Camera (MOC) observations of Amazonian polar layered deposits' (PLD) morphology, composition, and thickness, we conclude that the PLDs are composed of porous unconsolidated layers that have not experienced significant basal melting or other glacial-type processes. Morphologic features and associations within...
Seedling mortality in Hawaiian rain forest: The role of small-scale physical disturbance
Donald R. Drake, Linda W. Pratt
2001, Biotropica (33) 319-323
Most montane rain forests on the island of Hawaii consist of a closed canopy formed by Cibotium spp. tree ferns beneath an open canopy of emergent Metrosideros polymorpha trees. We used artificial seedlings to assess the extent to which physical disturbance caused by the senescing fronds of tree ferns and the activities of feral...
Constraints on dike propagation from continuous GPS measurements
P. Segall, Peter Cervelli, S. Owen, M. Lisowski, Asta Mikijus
2001, Journal of Geophysical Research B: Solid Earth (106) 19301-19317
The January 1997 East Rift Zone eruption on Kilauea volcano, Hawaii, occurred within a network of continuous Global Positioning System (GPS) receivers. The GPS measurements reveal the temporal history of deformation during dike intrusion, beginning ∼8 hours prior to the onset of the eruption. The dike volume as a function...
Sample-size requirements for evaluating population size structure
J.C. Vokoun, C.F. Rabeni, J.S. Stanovick
2001, North American Journal of Fisheries Management (21) 660-665
A method with an accompanying computer program is described to estimate the number of individuals needed to construct a sample length-frequency with a given accuracy and precision. First, a reference length-frequency assumed to be accurate for a particular sampling gear and collection strategy was constructed. Bootstrap procedures created length-frequencies with...
Empirical assessment of indices of prey importance in the diets of predacious fish
H. Liao, C.L. Pierce, J. G. Larscheid
2001, Transactions of the American Fisheries Society (130) 583-591
Determining the importance of prey taxa in the diets of predacious species is a frequent objective in fisheries research. Various indices of prey importance are in common use, and all give different results because of their emphasis on different aspects of fish diets. We explored these differences by empirically comparing...
Using multiple geochemical tracers to characterize the hydrogeology of the submarine spring off Crescent Beach, Florida
P.W. Swarzenski, C. D. Reich, R. M. Spechler, J. L. Kindinger, W.S. Moore
2001, Chemical Geology (179) 187-202
A spectacular submarine spring is located about 4 km east of Crescent Beach, FL, in the Atlantic Ocean. The single vent feature of Crescent Beach Spring provides a unique opportunity to examine onshore–offshore hydrogeologic processes, as well as point source submarine ground water discharge. The Floridan aquifer system in...
In situ stimulation of groundwater denitrification with formate to remediate nitrate contamination
R. L. Smith, D.N. Miller, M. H. Brooks, M.A. Widdowson, M.W. Killingstad
2001, Environmental Science & Technology (35) 196-203
In situ stimulation of denitrification has been proposed as a mechanism to remediate groundwater nitrate contamination. In this study, sodium formate was added to a sand and gravel aquifer on Cape Cod, MA, to test whether formate could serve as a potential electron donor for subsurface denitrification. During 16- and...
Reproductive ecology and demography of the 'Akohekohe
John C. Simon, Thane K. Pratt, Kim E. Berlin, James R. Kowalsky
2001, Condor (103) 736-745
The ‘Ākohekohe (Palmeria dolei) is an endangered Hawaiian honeycreeper endemic to the montane rain forests of east Maui in the Hawaiian Islands. We investigated ‘Ākohekohe nesting ecology using color-banded birds for the first time as a background to understanding the species' conservation. From 1994–1997, we color-banded 78 individuals, located and...
Volcano monitoring using the Global Positioning System: Filtering strategies
K.M. Larson, Peter Cervelli, M. Lisowski, Asta Mikijus, P. Segall, S. Owen
2001, Journal of Geophysical Research B: Solid Earth (106) 19453-19464
Permanent Global Positioning System (GPS) networks are routinely used for producing improved orbits and monitoring secular tectonic deformation. For these applications, data are transferred to an analysis center each day and routinely processed in 24-hour segments. To use GPS for monitoring volcanic events, which may last only a few hours,...
Negligible risk associated with the movement of processed rainbow trout, Oncorhynchus mykiss (Walbaum), from an infectious haematopoietic necrosis virus (IHNV) endemic area
S. E. LaPatra, W.N. Batts, K. Overturf, G.N. Jones, W. D. Shewmaker, J. R. Winton
2001, Journal of Fish Diseases (24) 399-408
To assess the risk of transmission of infectious haematopoietic necrosis virus (IHNV) associated with the movement of processed rainbow trout, Oncorhynchus mykiss, from an area where the virus is endemic, 240 freshly eviscerated fish (225-500 g) exhibiting spinal curvature or spinal compression types of deformities were tested for IHNV by...
Evidence that coded-wire-tagging procedures can enhance transmission of Renibacterium salmoninarum in chinook salmon
D.G. Elliott, R.J. Pascho
2001, Journal of Aquatic Animal Health (13) 181-193
Binary coded wire tags (CWTs) are used extensively for identification and management of anadromous salmonid populations. A study of bacterial kidney disease (BKD) in two brood year groups of hatchery-reared spring chinook salmon Oncorhynchus tshawytscha provided strong evidence that horizontal transmission of Renibacterium salmoninarum, the causative agent of BKD, might...
Pesticides associated with suspended sediments entering San Francisco Bay following the first major storm of water year 1996
Brian A. Bergamaschi, Kathryn Kuivila, Miranda S. Fram
2001, Estuaries (24) 368-380
Estuaries receive large quantities of suspended sediments following the first major storm of the water year. The first-flush events transport the majority of suspended sediments in any given year, and because of their relative freshness in the hydrologic system, these sediments may carry a significant amount of the sediment-associated pesticide...
Locating earthquakes: At what distance can the Earth no longer be treated as flat?
J.A. Snoke, J.C. Lahr
2001, Seismological Research Letters (72) 538-541
No abstract available....
A metadata initiative for global information discovery
E. Christian
2001, Government Information Quarterly (18) 209-221
The Global Information Locator Service (GILS) encompasses a global vision framed by the fundamental values of open societies. Societal values such as a free flow of information impose certain requirements on the society's information infrastructure. These requirements in turn shape the various laws, policies, standards, and technologies that determine the...
Initial hydrologic and geomorphic response following a wildfire in the Colorado front range
John A. Moody, Deborah A. Martin
2001, Earth Surface Processes and Landforms (26) 1049-1070
A wildfire in May 1996 burned 4690 hectares in two watersheds forested by ponderosa pine and Douglas fir in a steep, mountainous landscape with a summer, convective thunderstorm precipitation regime. The wildfire lowered the erosion threshold in the watersheds, and consequently amplified the subsequent erosional response to shorter time interval...
