An overview of current applications, challenges, and future trends in distributed process-based models in hydrology
Simone Fatichi, Enrique R. Vivoni, Fred L Odgen, Valeriy Y Ivanov, Benjamin B. Mirus, David Gochis, Charles W Downer, Matteo Camporese, Jason H Davison, Brian A. Ebel, Norm Jones, Jon Kim, Giuseppe Mascaro, Richard G. Niswonger, Pedro Restrepo, Riccardo Rigon, Chaopeng Shen, Mauro Sulis, David Tarboton
2016, Journal of Hydrology (537) 45-60
Process-based hydrological models have a long history dating back to the 1960s. Criticized by some as over-parameterized, overly complex, and difficult to use, a more nuanced view is that these tools are necessary in many situations and, in a certain class of problems, they are the most appropriate type of...
Relation of initial spacing and relative stand density indices to stand characteristics in a Douglas-fir plantation spacing trial
Robert O. Curtis, Sheel Bansal, Constance A. Harrington
2016, Research Paper PNW-RP-607
This report presents updated information on a 1981 Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii) plantation spacing trial at 33 years from planting. Stand statistics at the most recent measurement were compared for initial spacing of 1 through 6 meters and associated relative densities. There was no clear relationship...
Enriched groundwater seeps in two Vermont headwater catchments are hotspots of nitrate turnover
Amninder J. Kaur, Donald S. Ross, James B. Shanley, Anna R. Yatzor
2016, Wetlands (36) 237-249
Groundwater seeps in upland catchments are often enriched relative to stream waters, higher in pH, Ca2+ and sometimes NO3¯. These seeps could be a NO3¯ sink because of increased denitrification potential but may also be ‘hotspots’ for nitrification because of the relative enrichment. We compared seep soils with nearby well-drained...
Tidal hydrodynamics under future sea level rise and coastal morphology in the Northern Gulf of Mexico
Davina Passeri, Scott C. Hagen, Nathaniel G. Plant, Matthew V. Bilskie, Stephen C. Medeiros, Karim Alizad
2016, Earth's Future (4) 159-176
This study examines the integrated influence of sea level rise (SLR) and future morphology on tidal hydrodynamics along the Northern Gulf of Mexico (NGOM) coast including seven embayments and three ecologically and economically significant estuaries. A large-domain hydrodynamic model was used to simulate astronomic tides for present and future conditions...
Movement and survival of an amphibian in relation to sediment and culvert design
R.K Honeycutt, W.H. Lowe, Blake R. Hossack
2016, Journal of Wildlife Management (80) 761-770
Habitat disturbance from stream culverts can affect aquatic organisms by increasing sedimentation or forming barriers to movement. Land managers are replacing many culverts to reduce these negative effects, primarily for stream fishes. However, these management actions are likely to have broad implications for many organisms, including amphibians in small streams....
Evaluating potential artefacts of photo-reversal on behavioral studies with nocturnal invasive sea lamprey (Petromyzon marinus)
Matthew Barnett, Istvan Imre, C. Michael Wagner, Richard T. Di Rocco, Nicholas S. Johnson, Grant E. Brown
2016, Canadian Journal of Zoology (94) 405-410
Sea lampreys (Petromyzon marinus L., 1758) are nocturnal, so experiments evaluating their behaviour to chemosensory cues have typically been conducted at night. However, given the brief timeframe each year that adult P. marinus are available for experimentation, we investigated whether P. marinus exposed to a 12 h shifted diurnal cycle (reversed photoperiod) could be tested...
Managing nutrients, water, and energy for producing more food with low pollution (MoFoLoPo); What would success look like?
Jill Baron
2016, Environmental Development (18) 52-53
Synthetic nitrogen (N) fertilizer has enabled modern agriculture to greatly improve human nutrition during the 20th century, but it has also created unintended human health and environmental pollution challenges for the 21st century. Averaged globally, about half of the fertilizer N applied to farms is removed with the crops, while...
Multi-laboratory survey of qPCR enterococci analysis method performance in U.S. coastal and inland surface waters
Richard A. Haugland, Shawn Siefring, Manju Varma, Kevin H. Oshima, Mano Sivaganesan, Yiping Cao, Meredith Raith, John Griffith, Stephen B. Weisberg, Rachel T. Noble, A. Denene Blackwood, Julie Kinzelman, Tamara Anan’eva, Rebecca N. Bushon, Erin A. Stelzer, Valarie J. Harwood, Katrina V. Gordon, Christopher Sinigalliano
2016, Journal of Microbiological Methods (123) 114-125
Quantitative polymerase chain reaction (qPCR) has become a frequently used technique for quantifying enterococci in recreational surface waters, but there are several methodological options. Here we evaluated how three method permutations, type of mastermix, sample extract dilution and use of controls in results calculation, affect method reliability among multiple laboratories...
Informing Lake Erie agriculture nutrient management via scenario evaluation
Donald Scavia, Margaret Kalcic, Rebecca Logsdon Muenich, Noel Aloysius, Jeffrey Arnold, Chelsie Boles, Remegio Confesor, Joseph DePinto, Marie Gildow, Jay Martin, Jennifer Read, Todd Redder, Dale M. Robertson, Scott P. Sowa, Yu-Chen Wang, Michael White, Haw Yen
2016, Report
Harmful algal blooms (HABs) have been increasing in extent and intensity in the western basin of Lake Erie. The cyanobacteria Microcystis produces toxins that pose serious threats to animal and human health, resulting in beach closures and impaired water supplies, and have even forced a “do not drink” advisory for...
Effects of urban land-use on largescale stonerollers in the Mobile River Basin, Birmingham, AL
Deborah D. Iwanowicz, M.C. Black, Vicki S. Blazer, H. Zappia, Wade L. Bryant Jr.
2016, Ecotoxicology (25) 608-621
During the spring and fall of 2001 and the spring of 2002 a study was conducted to evaluate the health of the largescale stoneroller (Campostoma oligolepis) populations in streams along an urban land-use gradient. Sites were selected from a pool of naturally similar sub-basins (eco-region, basin size, and...
Increasing influence of air temperature on upper Colorado River streamflow
Connie A. Woodhouse, Gregory T. Pederson, Kiyomi Morino, Stephanie A. McAfee, Gregory J. McCabe
2016, Geophysical Research Letters (43) 2174-2181
This empirical study examines the influence of precipitation, temperature, and antecedent soil moisture on upper Colorado River basin (UCRB) water year streamflow over the past century. While cool season precipitation explains most of the variability in annual flows, temperature appears to be highly influential under certain conditions, with the role...
Increased temperatures combined with lowered salinities differentially impact oyster size class growth and mortality
Megan K. LaPeyre, Molly Rybovich, Steven G. Hall, Jerome F. La Peyre
2016, Journal of Shellfish Research (35) 101-113
Changes in the timing and interaction of seasonal high temperatures and low salinities as predicted by climate change models could dramatically alter oyster population dynamics. Little is known explicitly about how low salinity and high temperature combinations affect spat (<25mm), seed (25–75mm), andmarket (>75mm) oyster growth and mortality. Using field...
Seasonal habitat use of brook trout and juvenile steelhead in a Lake Ontario tributary
James H. Johnson, Ross Abbett, Marc A. Chalupnicki, Francis Verdoliva
2016, Journal of Freshwater Ecology (31) 239-249
Brook trout (Salvelinus fontinalis) are generally restricted to headwaters in New York tributaries of Lake Ontario. In only a few streams are brook trout abundant in lower stream reaches that are accessible to adult Pacific salmonids migrating from the lake. Consequently, because of the rarity of native brook trout populations...
Changing exhumation patterns during Cenozoic growth and glaciation of the Alaska Range: Insights from detrital thermochronology and geochronology
Richard O. Lease, Peter J. Haeussler, Paul O'Sullivan
2016, Tectonics (35) 934-955
Cenozoic growth of the Alaska Range created the highest topography in North America, but the space-time pattern and drivers of exhumation are poorly constrained. We analyzed U/Pb and fission-track double dates of detrital zircon and apatite grains from 12 catchments that span a 450 km length of the Alaska Range to...
Volcano deformation source parameters estimated from InSAR: Sensitivities to uncertainties in seismic tomography
Timothy Masterlark, Theodore Donovan, Kurt L. Feigl, Matthew M. Haney, Clifford H. Thurber, Sui Tung
2016, Journal of Geophysical Research B: Solid Earth (121) 3002-3016
The eruption cycle of a volcano is controlled in part by the upward migration of magma. The characteristics of the magma flux produce a deformation signature at the Earth's surface. Inverse analyses use geodetic data to estimate strategic controlling parameters that describe the position and pressurization of a magma chamber...
Role of large- and fine-scale variables in predicting catch rates of larval Pacific lamprey in the Willamette Basin, Oregon
Luke Schultz, Mariah P. Mayfield, Gabe T. Sheoships, Lance A. Wyss, Benjamin J. Clemens, Steven L. Whitlock, Carl B. Schreck
2016, Ecology of Freshwater Fish (25) 261-271
Pacific lamprey Entosphenus tridentatus is an anadromous fish native to the Pacific Northwest of the USA. That has declined substantially over the last 40 years. Effective conservation of this species will require an understanding of the habitat requirements for each life history stage. Because its life cycle contains extended freshwater rearing (3–8 years), the...
Fines classification based on sensitivity to pore-fluid chemistry
Junbong Jang, J. Carlos Santamarina
2016, Journal of Geotechnical and Geoenvironmental Engineering (142) 1-8
The 75-μm particle size is used to discriminate between fine and coarse grains. Further analysis of fine grains is typically based on the plasticity chart. Whereas pore-fluid-chemistry-dependent soil response is a salient and distinguishing characteristic of fine grains, pore-fluid chemistry is not addressed in current classification systems....
The Chief Joseph Hatchery Program 2013 Annual Report
Casey Baldwin, Andrea Pearl, Matthew Laramie, John Rohrback, Pat Phillips, Keith Wolf
2016, Report
The Chief Joseph Hatchery is the fourth hatchery obligated under the Grand Coulee Dam/Dry Falls project, originating in the 1940s. Leavenworth, Entiat, and Winthrop National Fish Hatcheries were built and operated as mitigation for salmon blockage at Grand Coulee Dam, but the fourth hatchery was not built, and the obligation...
RMT focal plane sensitivity to seismic network geometry and faulting style
Kendra L. Johnson, Gavin P. Hayes, Robert B. Herrmann, Harley M. Benz, Daniel E. McNamara, Eric A. Bergman
2016, Geophysical Journal International (206) 525-556
Modern tectonic studies often use regional moment tensors (RMTs) to interpret the seismotectonic framework of an earthquake or earthquake sequence; however, despite extensive use, little existing work addresses RMT parameter uncertainty. Here, we quantify how network geometry and faulting style affect RMT sensitivity. We examine how data-model fits change with...
A multiagency and multijurisdictional approach to mapping the glacial deposits of the Great Lakes region in three dimensions
Richard C. Berg, Steven E. Brown, Jason F. Thomason, Nancy R. Hasenmueller, Sally L. Letsinger, Kevin A. Kincare, John M. Esch, Alan E. Kehew, Harvey Thorleifson, Andrew Kozlowski, Brian C. Bird, Richard R. Pavey, Andy F. Bajc, Abigail K. Burt, Gary M. Fleeger, Eric C. Carson
2016, GSA Special Papers (520) 415-447
The Great Lakes Geologic Mapping Coalition (GLGMC), consisting of state geological surveys from all eight Great Lakes states, the Ontario Geological Survey, and the U.S. Geological Survey, was conceived out of a societal need for unbiased and scientifically defensible geologic information on the shallow subsurface, particularly the delineation, interpretation, and...
Growth, survival, longevity, and population size of the Big Mouth Cave salamander (Gyrinophilus palleucus necturoides) from the type locality in Grundy County, Tennessee, USA
Matthew L. Niemiller, Brad M. Glorioso, Dante B. Fenolio, R. Graham Reynolds, Steven J. Taylor, Brian T. Miller
2016, Copeia (104) 35-41
Salamander species that live entirely in subterranean habitats have evolved adaptations that allow them to cope with perpetual darkness and limited energy resources. We conducted a 26-month mark–recapture study to better understand the individual growth and demography of a population of the Big Mouth Cave Salamander (Gyrinophilus palleucus necturoides). We...
NHDPlus as a geospatial framework for SPARROW modeling
John W. Brakebill, Gregory E. Schwarz
2016, Impact Assessment Bulletin (18)
Successful water-resource management requires thorough knowledge and understanding of the relations among water-quality contaminate sources and the factors that affect the transport throughout a hydrologic system. Surface-water modeling is a valuable tool that can be applied to help advance and achieve the understanding of these dynamic relations. Spatially Referenced Regressions...
Detailed mapping and rupture implications of the 1 km releasing bend in the Rodgers Creek Fault at Santa Rosa, northern California
Suzanne Hecker, Victoria E. Langenheim, Robert Williams, Christopher S. Hitchcock, Stephen B. DeLong
2016, Bulletin of the Seismological Society of America (106) 575-594
Airborne light detection and ranging (lidar) topography reveals for the first time the trace of the Rodgers Creek fault (RCF) through the center of Santa Rosa, the largest city in the northern San Francisco Bay area. Vertical deformation of the Santa Rosa Creek floodplain expresses a composite pull‐apart basin beneath...
Isotopic incorporation and the effects of fasting and dietary lipid content on isotopic discrimination in large carnivorous mammals
Karyn D. Rode, Craig A. Stricker, Joy Erlenbach, Charles T. Robbins, Seth Cherry, Seth D. Newsome, Amy Cutting, Shannon Jensen, Gordon Stenhouse, Matt Brooks, Amy Hash, Nicole Nicassio
2016, Physiological and Biochemical Zoology (89) 182-197
There has been considerable emphasis on understanding isotopic discrimination for diet estimation in omnivores. However, discrimination may differ for carnivores, particularly species that consume lipid-rich diets. Here, we examined the potential implications of several factors when using stable isotopes to estimate the diets of bears, which can consume lipid-rich diets...
Seismic site characterization of an urban dedimentary basin, Livermore Valley, California: Site tesponse, basin-edge-induced surface waves, and 3D simulations
Stephen H. Hartzell, Alena L. Leeds, Leonardo Ramirez-Guzman, James P. Allen, Robert G. Schmitt
2016, Bulletin of the Seismological Society of America (103) 609-631
Thirty‐two accelerometers were deployed in the Livermore Valley, California, for approximately one year to study sedimentary basin effects. Many local and near‐regional earthquakes were recorded, including the 24 August 2014 Mw 6.0 Napa, California, earthquake. The resulting ground‐motion data set is used to quantify the seismic response of the Livermore basin, a...
