Hydratools, a MATLAB® based data processing package for Sontek Hydra data
M. Martini, F. L. Lightsom, C. R. Sherwood, J. Xu, J.R. Lacy, A. Ramsey, R. Horwitz
2005, Conference Paper, Proceedings of the IEEE Working Conference on Current Measurement Technology
The U.S. Geological Survey (USGS) has developed a set of MATLAB tools to process and convert data collected by Sontek Hydra instruments to netCDF, which is a format used by the USGS to process and archive oceanographic time-series data. The USGS makes high-resolution current measurements within 1.5 meters of the...
Quantifying Northern Goshawk diets using remote cameras and observations from blinds
A. S. Rogers, S. DeStefano, M.F. Ingraldi
2005, Journal of Raptor Research (39) 303-309
Raptor diet is most commonly measured indirectly, by analyzing castings and prey remains, or directly, by observing prey deliveries from blinds. Indirect methods are not only time consuming, but there is evidence to suggest these methods may overestimate certain prey taxa within raptor diet. Remote video surveillance systems have been...
Interpreting DNAPL saturations in a laboratory-scale injection using one- and two-dimensional modeling of GPR Data
Raymond H. Johnson, Eileen P. Poeter
2005, Ground Water Monitoring and Remediation (25) 159-169
Ground-penetrating radar (GPR) is used to track a dense non-aqueous phase liquid (DNAPL) injection in a laboratory sand tank. Before modeling, the GPR data provide a qualitative image of DNAPL saturation and movement. One-dimensional (1D) GPR modeling provides a quantitative interpretation of DNAPL volume within a given thickness during and...
Implications of ground water chemistry and flow patterns for earthquake studies
W. Guangcai, Z. Zuochen, W. Min, C.A. Cravotta III, L. Chenglong
2005, Ground Water (43) 478-484
Ground water can facilitate earthquake development and respond physically and chemically to tectonism. Thus, an understanding of ground water circulation in seismically active regions is important for earthquake prediction. To investigate the roles of ground water in the development and prediction of earthquakes, geological and hydrogeological monitoring was conducted in...
Diel spawning behavior of chum salmon in the Columbia River
K.F. Tiffan, D.W. Rondorf, J.J. Skalicky
2005, Transactions of the American Fisheries Society (134) 892-900
We conducted a study during 2003 in a side channel of the Columbia River downstream of Bonneville Dam to describe the diel spawning behavior of wild chum salmon Oncorhynchus keta. We collected observational data on 14 pairs of chum salmon using a dual-frequency identification sonar. Spawners of both genders were...
Effects of Hurricane Georges on habitat use by captive-reared Hispaniolan Parrots (Amazona ventralis) released in the Dominican Republic
T.H. White Jr., J.A. Collazo, F. J. Vilella, S.A. Guerrero
2005, Ornitologia Neotropical (16) 405-417
We radio-tagged and released 49 captive-reared Hispaniolan Parrots (Amazona ventralis) in Parque Nacional del Este (PNE), Dominican Republic, during 1997 and 1998. Our primary objective was to develop a restoration program centered on using aviary-reared birds to further the recovery of the critically endangered Puerto Rican Parrot (A. vittata). Hurricane...
Water level dynamics in wetlands and nesting success of Black Terns in Maine
Andrew T. Gilbert, F. A. Servello
2005, Waterbirds (28) 181-187
The Black Tern (Chlidonias niger) nests in freshwater wetlands that are prone to water level fluctuations, and nest losses to flooding are common. We examined temporal patterns in water levels at six sites with Black Tern colonies in Maine and determined probabilities of flood events and associated nest loss...
Soil organic carbon dynamics as related to land use history in the northwestern Great Plains
Z. Tan, S. Liu, C.A. Johnston, Thomas R. Loveland, L.L. Tieszen, J. Liu, R. Kurtz
2005, Global Biogeochemical Cycles (19) 1-10
Strategies for mitigating the global greenhouse effect must account for soil organic carbon (SOC) dynamics at both spatial and temporal scales, which is usually challenging owing to limitations in data and approach. This study was conducted to characterize the SOC dynamics associated with land use change history in the northwestern...
U-Pb zircon geochronology of Mesoproterozoic postorogenic rocks and implications for post-Ottawan magmatism and metallogenesis, New Jersey Highlands and contiguous areas, USA
R.A. Volkert, R. E. Zartman, P.B. Moore
2005, Precambrian Research (139) 1-19
Postorogenic rocks are widespread in Grenville terranes of the north-central Appalachians where they form small, discordant, largely pegmatitic felsic intrusive bodies, veins, and dikes, and also metasomatic calcic skarns that are unfoliated and postdate the regional 1090 to 1030 Ma upper amphibolite- to granulite-facies metamorphism related to the Grenville (Ottawan)...
Yellowstone bison fetal development and phenology of parturition
P.J.P. Gogan, K.M. Podruzny, E.M. Olexa, H.I. Pac, K.L. Frey
2005, Journal of Wildlife Management (69) 1716-1730
Knowledge of Yellowstone bison (Bison bison) parturition patterns allows managers to refine risk assessments and manage to reduce the potential for transmission of brucellosis between bison and cattle. We used historical (1941) and contemporary (1989–2002) weights and morphometric measurements of Yellowstone bison fetuses to describe fetal growth and to predict...
Using cosmogenic nuclides to contrast rates of erosion and sediment yield in a semi-arid, arroyo-dominated landscape, Rio Puerco Basin, New Mexico
P.R. Bierman, J.M. Reuter, M. Pavich, A. C. Gellis, M.W. Caffee, J. Larsen
2005, Earth Surface Processes and Landforms (30) 935-953
Analysis of in-situ-produced 10Be and 26Al in 52 fluvial sediment samples shows that millennial-scale rates of erosion vary widely (7 to 366 m Ma-1) through the lithologically and topographically complex Rio Puerco Basin of northern New Mexico. Using isotopic analysis of both headwater and downstream samples, we determined that the...
Geospatial decision support systems for societal decision making
R. L. Bernknopf
2005, Boletin Geologico y Minero (116) 325-330
While science provides reliable information to describe and understand the earth and its natural processes, it can contribute more. There are many important societal issues in which scientific information can play a critical role. Science can add greatly to policy and management decisions to minimize loss of life and property...
Preliminary evaluation of a lake whitefish (Coregonus clupeaformis) bioenergetics model
Charles P. Madenjian, Steven A. Pothoven, Philip J. Schneeberger, Daniel V. O’Connor, Stephen B. Brandt
2005, Conference Paper, Proceedings of a workshop on the dynamics of lake whitefish (<i>Coregonus clupeaformis</i>) and the amphipod Diporeia spp. in the Great Lakes
We conducted a preliminary evaluation of a lake whitefish (Coregonus clupeaformis) bioenergetics model by applying the model to size-at-age data for lake whitefish from northern Lake Michigan. We then compared estimates of gross growth efficiency (GGE) from our bioenergetis model with previously published estimates of GGE for bloater (C. hoyi)...
Sub-seafloor acoustic characterization of seamounts near the Ogasawara Fracture Zone in the western Pacific using chirp (3-7 kHz) subbottom profiles
T.-G. Lee, J.R. Hein, Kenneth Lee, J.-W. Moon, Y.-T. Ko
2005, Deep-Sea Research Part I: Oceanographic Research Papers (52) 1932-1956
A detailed analysis of chirp (3-7 kHz) subbottom profiles and bathymetry was performed on data collected from seamounts near the Ogasawara Fracture Zone (OFZ) in the western Pacific. The OFZ, which is a 150 km wide rift zone showing 600 km of right-lateral movement in a NW-SE direction, is unique...
Digital elevation model of King Edward VII Peninsula, West Antarctica, from SAR interferometry and ICESat laser altimetry
S. Baek, Oh-Ig Kwoun, Andreas Braun, Z. Lu, C. K. Shum
2005, IEEE Geoscience and Remote Sensing Letters (2) 413-417
We present a digital elevation model (DEM) of King Edward VII Peninsula, Sulzberger Bay, West Antarctica, developed using 12 European Remote Sensing (ERS) synthetic aperture radar (SAR) scenes and 24 Ice, Cloud, and land Elevation Satellite (ICESat) laser altimetry profiles. We employ differential interferograms from the ERS tandem mission SAR...
An evaluation of the U.S. Geological Survey World Petroleum Assessment 2000
T. R. Klett, D. L. Gautier, Thomas S. Ahlbrandt
2005, American Association of Petroleum Geologists Bulletin (89) 1033-1042
This study compares the additions to conventional crude oil and natural gas reserves as reported from January 1996 to December 2003 with the estimated undiscovered and reserve-growth volumes assessed in the U.S. Geological Survey World Petroleum Assessment 2000, which used data current through 1995. Approximately 28% of the estimated additions...
Rainfall-runoff in the Albuquerque, New Mexico, area: Measurements, analyses and comparisons
C.E. Anderson, T.J. Ward, T. Kelly
Moglen G.E., editor(s)
2005, Conference Paper, Proceedings of the 2005 Watershed Management Conference - Managing Watersheds for Human and Natural Impacts: Engineering, Ecological, and Economic Challenges
Albuquerque, New Mexico, has experienced significant growth over the last 20 years like many other cities in the Southwestern United States. While the US population grew by 37% between the 1970 and 2000 censuses, the growth for Albuquerque was 83%. More people mean more development and increased problems of managing...
Analyzing indicators of stream health for Minnesota streams
U. Singh, M. Kocian, B. Wilson, A. Bolton, J. Nieber, B. Vondracek, J. Perry, J. Magner
2005, Conference Paper, Proceedings of the 3rd Conference on Watershed Management to Meet Water Quality Standards and Emerging TMDL
Recent research has emphasized the importance of using physical, chemical, and biological indicators of stream health for diagnosing impaired watersheds and their receiving water bodies. A multidisciplinary team at the University of Minnesota is carrying out research to develop a stream classification system for Total Maximum Daily Load (TMDL) assessment....
Controlling for anthropogenically induced atmospheric variation in stable carbon isotope studies
E.S. Long, R.A. Sweitzer, Duane R. Diefenbach, M. Ben-David
2005, Oecologia (146) 148-156
Increased use of stable isotope analysis to examine food-web dynamics, migration, transfer of nutrients, and behavior will likely result in expansion of stable isotope studies investigating human-induced global changes. Recent elevation of atmospheric CO2 concentration, related primarily to fossil fuel combustion, has reduced atmospheric CO2 ??13C (13C/12C), and this change...
Subduction-zone magnetic anomalies and implications for hydrated forearc mantle
R.J. Blakely, T.M. Brocher, R.E. Wells
2005, Geology (33) 445-448
Continental mantle in subduction zones is hydrated by release of water from the underlying oceanic plate. Magnetite is a significant byproduct of mantle hydration, and forearc mantle, cooled by subduction, should contribute to long-wavelength magnetic anomalies above subduction zones. We test this hypothesis with a quantitative model of the Cascadia...
The relationship between habitat characteristics and demographic performance of northern spotted owls in southern Oregon
Katie M. Dugger, Frank Wagner, Robert G. Anthony, Gail S. Olson
2005, The Condor (107) 863-878
We used data from Northern Spotted Owl (Strix occidentalis caurina) territories to model the effects of habitat (particularly intermediate-aged forest stand types), climate, and nonhabitat covariates (i.e., age, sex) on owl reproductive rate and apparent survival in southwestern Oregon. Our best model for reproductive rate included an interaction between a...
Colorado Late Cenozoic Fault and Fold Database and Internet Map Server: User-friendly technology for complex information
K.S. Morgan, G.J. Pattyn, M.L. Morgan
2005, Environmental & Engineering Geoscience (11) 155-162
Internet mapping applications for geologic data allow simultaneous data delivery and collection, enabling quick data modification while efficiently supplying the end user with information. Utilizing Web-based technologies, the Colorado Geological Survey's Colorado Late Cenozoic Fault and Fold Database was transformed from a monothematic, nonspatial Microsoft Access database into a complex...
The most recent large earthquake on the Rodgers Creek fault, San Francisco bay area
S. Hecker, D. Pantosti, David P. Schwartz, J. C. Hamilton, L.M. Reidy, T. J. Powers
2005, Bulletin of the Seismological Society of America (95) 844-860
The Rodgers Creek fault (RCF) is a principal component of the San Andreas fault system north of San Francisco. No evidence appears in the historical record of a large earthquake on the RCF, implying that the most recent earthquake (MRE) occurred before 1824, when a Franciscan mission was built near...
On pads and filters: Processing strong-motion data
D.M. Boore
2005, Bulletin of the Seismological Society of America (95) 745-750
Processing of strong-motion data in many cases can be as straightforward as filtering the acceleration time series and integrating to obtain velocity and displacement. To avoid the introduction of spurious low-frequency noise in quantities derived from the filtered accelerations, however, care must be taken to append zero pads of adequate...
Mapping variations in weight percent silica measured from multispectral thermal infrared imagery - Examples from the Hiller Mountains, Nevada, USA and Tres Virgenes-La Reforma, Baja California Sur, Mexico
S.J. Hook, J.E. Dmochowski, K. A. Howard, L. C. Rowan, K. E. Karlstrom, J. M. Stock
2005, Remote Sensing of Environment (95) 273-289
Remotely sensed multispectral thermal infrared (8-13 ??m) images are increasingly being used to map variations in surface silicate mineralogy. These studies utilize the shift to longer wavelengths in the main spectral feature in minerals in this wavelength region (reststrahlen band) as the mineralogy changes from felsic to mafic. An approach...
