Using high-frequency sampling to detect effects of atmospheric pollutants on stream chemistry
Stephen D. Sebestyen, James B. Shanley, Elizabeth W. Boyer
2009, Conference Paper, Planning for an uncertain future - Monitoring, integration, and adaptation (SIR 2009-5049)
We combined information from long-term (weekly over many years) and short-term (high-frequency during rainfall and snowmelt events) stream water sampling efforts to understand how atmospheric deposition affects stream chemistry. Water samples were collected at the Sleepers River Research Watershed, VT, a temperate upland forest site that receives elevated atmospheric deposition...
Water velocity, turbulence, and migration rate of subyearling fall Chinook salmon in the free-flowing and impounded Snake River
Kenneth F. Tiffan, Tobias J. Kock, Craig A. Haskell, William P. Connor, R. Kirk Steinhorst
2009, Transactions of the American Fisheries Society (138) 373-384
We studied the migratory behavior of subyearling fall Chinook salmon Oncorhynchus tshawytscha in free-flowing and impounded reaches of the Snake River to evaluate the hypothesis that velocity and turbulence are the primary causal mechanisms of downstream migration. The hypothesis states that impoundment reduces velocity and turbulence and alters the migratory...
A review of plague persistence with special emphasis on fleas
Jeffrey Wimsatt, Dean E. Biggins
2009, Journal of Vector Borne Diseases (46) 85-99
Sylvatic plague is highly prevalent during infrequent epizootics that ravage the landscape of western North America. During these periods, plague dissemination is very efficient. Epizootics end when rodent and flea populations are decimated and vectored transmission declines. A second phase (enzootic plague) ensues when plague is difficult to detect from...
Environmental effects of hydrothermal alteration and historical mining on water and sediment quality in Central Colorado
S. E. Church, D. L. Fey, T. L. Klein, T.S. Schmidt, R. B. Wanty, E.H. deWitt, B.W. Rockwell, Juan C.A. San
2009, Conference Paper, Planning for an uncertain future - Monitoring, integration, and adaptation (SIR 2009-5049)
The U.S. Geological Survey conducted an environmental assessment of 198 catchments in a 54,000-km2 area of central Colorado, much of which is on Federal land. The Colorado Mineral Belt, a northeast-trending zone of historical base- and precious-metal mining, cuts diagonally across the study area. The investigation was intended to test...
Determining priorities for future mars polar research
T.N. Titus, T.I. Michaels
2009, Conference Paper, Eos
[No abstract available]...
Late Proterozoic-Paleozoic evolution of the Arctic Alaska-Chukotka terrane based on U-Pb igneous and detrital zircon ages: Implications for Neoproterozoic paleogeographic reconstructions
J.M. Amato, J. Toro, E. L. Miller, G. E. Gehrels, G. L. Farmer, E.S. Gottlieb, A.B. Till
2009, Geological Society of America Bulletin (121) 1219-1235
The Seward Peninsula of northwestern Alaska is part of the Arctic Alaska-Chukotka terrane, a crustal fragment exotic to western Laurentia with an uncertain origin and pre-Mesozoic evolution. U-Pb zircon geochronology on deformed igneous rocks reveals a previously unknown intermediate-felsic volcanic event at 870 Ma, coeval with rift-related magmatism associated with...
Late Pleistocene eolian features in southeastern Maryland and Chesapeake Bay region indicate strong WNW-NW winds accompanied growth of the Laurentide Ice Sheet
H. W. Markewich, R. J. Litwin, M.J. Pavich, G.A. Brook
2009, Quaternary Research (71) 409-425
Inactive parabolic dunes are present in southeastern Maryland, USA, along the east bank of the Potomac River. More elongate and finer-grained eolian deposits and paha-like ridges characterize the Potomac River-Patuxent River upland and the west side of Chesapeake Bay. These ridges are streamlined erosional features, veneered with eolian sediment and...
Derivation of habitat-specific dissolved oxygen criteria for Chesapeake Bay and its tidal tributaries
Richard A. Batiuk, Denise L. Breitburg, Robert J. Diaz, Thomas M. Cronin, David H. Secor, Glen Thursby
2009, Journal of Experimental Marine Biology and Ecology (381) S204-S215
The Chesapeake 2000 Agreement committed its state and federal signatories to “define the water quality conditions necessary to protect aquatic living resources” in the Chesapeake Bay (USA) and its tidal tributaries. Hypoxia is one of the key water quality issues addressed as a result of the above Agreement. This paper...
Effects of fire temperature on the physical and chemical characteristics of the ash from two plots of Cork oak (Quercus Suber)
X. Ubeda, P. Pereira, L. Outeiro, D.A. Martin
2009, Land Degradation and Development (20) 589-608
Cork oak, (Quercus suber) is widely distributed in the Mediterranean region, an area subject to frequent fires. The ash produced by burning can have impacts on the soil status and water resources that can differ according to the temperature reached during fire and the characteristics of the litter, defined as...
PCBs and DDE in tree swallow (Tachycineta bicolor) eggs and nestlings from an estuarine PCB superfund site, New Bedford Harbor, MA, U.S.A.
Saro Jayaraman, Diane E. Nacci, Denise M. Champlin, Richard J. Pruell, Kenneth J. Rocha, Christine M. Custer, Thomas W. Custer, Mark Cantwell
2009, Environmental Science & Technology (43) 8387-8392
While breeding tree swallows (Tachycineta bicolor) have been used as biomonitors for freshwater sites, we report the first use of this species to assess contaminant bioaccumulation from estuarine breeding grounds into these aerial insectivores. Eggs and nestlings were collected from nest boxes in a polychlorinated biphenyl (PCB) contaminated estuary, the...
Isoscapes to address large-scale earth science challenges
G.J. Bowen, J. B. West, B. H. Vaughn, T. E. Dawson, J.R. Ehleringer, M. L. Fogel, K. Hobson, J. Hoogewerff, C. Kendall, C.-T. Lai, C.C. Miller, D. Noone, H. Schwarcz, C.J. Still
2009, Eos, Transactions, American Geophysical Union (90) 109-110
No abstract available....
Delta lobe degradation and hurricane impacts governing large-scale coastal behavior, South-central Louisiana, USA
M.D. Miner, M.A. Kulp, D. M. FitzGerald, J. G. Flocks, H.D. Weathers
2009, Geo-Marine Letters (29) 441-453
A large deficit in the coastal sediment budget, high rates of relative sea-level rise (???0.9 cm/year), and storm-induced current and wave erosion are forcing barrier shoreface retreat along the periphery of the Mississippi River delta plain. Additionally, conversion of interior wetlands to open water has increased the bay tidal prism,...
Hydrometeor-enhanced tephra sedimentation: Constraints from the 18 May 1980 eruption of Mount St. Helens
A.J. Durant, William I. Rose Jr., A.M. Sarna-Wojcicki, Steven Carey, A.C.M. Volentik
2009, Journal of Geophysical Research F: Earth Surface (114)
Uncertainty remains on the origin of distal mass deposition maxima observed in many recent tephra fall deposits. In this study the link between ash aggregation and the formation of distal mass deposition maxima is investigated through reanalysis of tephra fallout from the Mount St. Helens 18 May 1980 (MSH80) eruption....
A multi-proxy palaeoecological and palaeoclimatic record within full glacial lacustrine deposits, western Tennessee, USA
D.A. Grimley, L. Daniel, S.W. Kaplan, C.H. Yansa, B. Brandon Curry, E.A. Oches
2009, Journal of Quaternary Science (24) 960-981
The Fulton Section, along the Mississippi River in western Tennessee, USA, is a 1km continuous exposure (~20m vertically) of Quaternary fluvial and lacustrine deposits, inset within Eocene sediments and buried by thick loess. Fossiliferous slackwater lake sediments record maximum aggradation during the last two major glaciations, with deposition between ca....
Instrumental record of debris flow initiation during natural rainfall: Implications for modeling slope stability
D. R. Montgomery, K. M. Schmidt, W. E. Dietrich, J. McKean
2009, Journal of Geophysical Research F: Earth Surface (114)
The middle of a hillslope hollow in the Oregon Coast Range failed and mobilized as a debris flow during heavy rainfall in November 1996. Automated pressure transducers recorded high spatial variability of pore water pressure within the area that mobilized as a debris flow, which initiated...
SSTL UK-DMC SLIM-6 data quality assessment
G. Chander, S. Saunier, M.J. Choate, P. L. Scaramuzza
2009, IEEE Transactions on Geoscience and Remote Sensing (47) 2380-2391
Satellite data from the Surrey Satellite Technology Limited (SSTL) United Kingdom (UK) Disaster Monitoring Constellation (DMC) were assessed for geometric and radiometric quality. The UK-DMC Surrey Linear Imager 6 (SLIM-6) sensor has a 32-m spatial resolution and a ground swath width of 640 km. The UK-DMC SLIM-6 design consists of...
Can kittiwakes smell? Experimental evidence in a larid species
S. Leclaire, Herve Mulard, R.H. Wagner, Scott A. Hatch, E. Danchin
2009, Ibis (151) 584-587
Birds have long been thought to have a poor sense of smell, although they have the proper anatomical and neurological structures for detecting olfactory cues (Roper 1999). However, in the past decade several bird species have been shown to use smell in various contexts, such as foraging (Nevitt et al. 1995), navigation (Wallraff...
Geologic columns for the ICDP-USGS Eyreville B core, Chesapeake Bay impact structure: Impactites and crystalline rocks, 1766 to 1096 m depth
J. Wright Horton Jr., R.L. Gibson, W.U. Reimold, A. Wittmann, Gregory Gohn, Lucy E. Edwards
2009, Special Paper of the Geological Society of America 21-49
The International Continental Scientific Drilling Program (ICDP)-U.S. Geological Survey (USGS) Eyreville drill cores from the Chesapeake Bay impact structure provide one of the most complete geologic sections ever obtained from an impact structure. This paper presents a series of geologic columns and descriptive lithologic information for the lower impactite and...
Assessment of the UV camera sulfur dioxide retrieval for point source plumes
M.P. Dalton, I.M. Watson, P.A. Nadeau, C. Werner, W. Morrow, J.M. Shannon
2009, Journal of Volcanology and Geothermal Research (188) 358-366
Digital cameras, sensitive to specific regions of the ultra-violet (UV) spectrum, have been employed for quantifying sulfur dioxide (SO2) emissions in recent years. The instruments make use of the selective absorption of UV light by SO2 molecules to determine pathlength concentration. Many monitoring advantages are gained by using this technique,...
William "Bill" Back: an incisive geochemist and a great mentor.
M.J. Baedecker, W.W. Wood
2009, Ground Water (47) 314-318
[No abstract available]...
A case study of two M~5 mainshocks in Anza, California: Is the footprint of an aftershock sequence larger than we think?
Karen R. Fritts, Debi Kilb
2009, Bulletin of the Seismological Society of America (99) 2721-2735
It has been traditionally held that aftershocks occur within one to two fault lengths of the mainshock. Here we demonstrate that this perception has been shaped by the sensitivity of seismic networks. The 31 October 2001 Mw 5.0 and 12 June 2005 Mw 5.2 Anza mainshocks in southern California occurred in the middle of...
Continental-scale patterns in soil geochemistry and mineralogy: results from two transects across the United States and Canada
L. G. Woodruff, W.F. Cannon, D. D. Eberl, D. B. Smith, J.E. Kilburn, J.D. Horton, R. G. Garrett, R.A. Klassen
2009, Applied Geochemistry (24) 1369-1381
In 2004, the US Geological Survey (USGS) and the Geological Survey of Canada (GSC) initiated a pilot study that involved collection of more than 1500 soil samples from 221 sites along two continental transects across Canada and the United States. The pilot study was designed to test and refine protocols...
Seismic analysis of clinoform depositional sequences and shelf-margin trajectories in Lower Cretaceous (Albian) strata, Alaska North Slope
David W. Houseknecht, Kenneth J. Bird, Christopher J. Schenk
2009, Basin Research (21) 644-654
Lower Cretaceous strata beneath the Alaska North Slope include clinoform depositional sequences that filled the western Colville foreland basin and overstepped the Beaufort rift shoulder. Analysis of Albian clinoform sequences with two‐dimensional (2D) seismic data resulted in the recognition of seismic facies inferred to represent lowstand, transgressive and highstand systems...
Polybrominated diphenyl ether flame retardants in eggs may reduce reproductive success of ospreys in Oregon and Washington, USA
Charles J. Henny, J. L. Kaiser, R. A. Grove, Branden L. Johnson, R. J. Letcher
2009, Ecotoxicology (18) 802-813
Spatial and temporal assessments and reports of polybrominated diphenyl ether (PBDE) flame retardants in birds remain sparse. In the present study, PBDEs were detected in all 120 osprey (Pandion haliaetus) eggs collected. The eggs were collected from nests along the Columbia, Willamette and Yakima rivers of Oregon (OR) and Washington...
Structural and geochemical characteristics of faulted sediments and inferences on the role of water in deformatiion, Rio Grande Rift, New Mexico
Jonathan S. Caine, S.A. Minor
2009, Geological Society of America Bulletin (121) 1325-1340
The San Ysidro fault is a spectacularly exposed normal fault located in the northwestern Albuquerque Basin of the Rio Grande Rift. This intrabasin fault is representative of many faults that formed in poorly lithified sediments throughout the rift. The fault is exposed over nearly 10 km and accommodates nearly 700...
