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Articles 1 - 30 of 45
Full-Text Articles in Physical Sciences and Mathematics
Investigating The Impact Of Restricted Irrigation Practices On Soil Moisture Variability And Distribution In A Dry Farmed Vineyard Site, Boise, Idaho, J. Duffin, David Wilkins, J. Guenther
Investigating The Impact Of Restricted Irrigation Practices On Soil Moisture Variability And Distribution In A Dry Farmed Vineyard Site, Boise, Idaho, J. Duffin, David Wilkins, J. Guenther
David E. Wilkins
Changing climate in semiarid regions may result in increased water stresses for agricultural production as timing and form of precipitation may result in diminished surface water for irrigation. To prepare for these changing conditions, studies are being conducted on the possibility of dry farmed agriculture as an alternative to irrigated production. This study specifically investigates the ability to grow productive wine grapes with limited or zero irrigation in the Boise Front Foothills, West Foothills TIC Vineyard, located in a climate zone receiving less than 300 mm of annual precipitation. Traditional vineyard performance factors such as planting densities, soil type, rootstock, …
Sophomore Field Experiences As An Introduction To The Nature Of Geosciences: Data Collection And Analysis Using Dendrochronology, David Wilkins, M. Kunkel
Sophomore Field Experiences As An Introduction To The Nature Of Geosciences: Data Collection And Analysis Using Dendrochronology, David Wilkins, M. Kunkel
David E. Wilkins
Opportunities for field experiences are often presented as a primary reason that undergraduate students gravitate towards geosciences as a major field of study. What those students may not understand is that, for professional geoscientists, field experiences go beyond the freshman-level field trip, and students may overlook the processes of observation, data collection and analysis that are inherent to the science. The Department of Geosciences at Boise State has developed a set of sophomore field experience courses designed to "set the hook" into new majors and prepare them for field experiences in upper division coursework. These sophomore courses have been shown …
Remote Analysis Of Grain Size Characteristic In Submarine Pyroclastic Deposits From Kolumbo Volcano, Greece, C. Smart, D. P. Whitesell, C. Roman, S. Carey
Remote Analysis Of Grain Size Characteristic In Submarine Pyroclastic Deposits From Kolumbo Volcano, Greece, C. Smart, D. P. Whitesell, C. Roman, S. Carey
Christopher N. Roman
Grain size characteristics of pyroclastic deposits provide valuable information about source eruption energetics and depositional processes. Maximum size and sorting are often used to discriminate between fallout and sediment gravity flow processes during explosive eruptions. In the submarine environment the collection of such data in thick pyroclastic sequences is extremely challenging and potentially time consuming. A method has been developed to extract grain size information from stereo images collected by a remotely operated vehicle (ROV). In the summer of 2010 the ROV Hercules collected a suite of stereo images from a thick pumice sequence in the caldera walls of Kolumbo …
Erasing Boundaries: Global Resource Sharing In The 21st Century, Robert A. Seal
Erasing Boundaries: Global Resource Sharing In The 21st Century, Robert A. Seal
Robert A Seal
Academic libraries have long been accustomed to participating in cooperative ventures with neighboring institutions as well as with those in other regions of their country. In large part, such activities have grown out of a desire to reduce or control costs, as well as to provide users with a broader base of materials for research, study, and teaching. Because not even a well-developed national library is able to fulfill all its users' needs all the time, today's university libraries must depend upon one another to fulfill those needs. For many decades, the resource sharing tradition has been particularly strong among …
The Effects Of Evapotranspiration Upon Recharge Using The Stable Isotopes Of Oxygen And Hydrogen In The Carbonate Aquifers Of The Cumberland Plateau In Southeast Kentucky, Lee J. Florea
Lee J Florea, PhD, P.G.
In this brief manuscript, we consider the variation of the stable isotopes of oxygen, δ18O, and hydrogen, δ2H, in samples collected during 2010 and 2011 from precipitation and shallow groundwater along the Cumberland Plateau of southeast Kentucky. These data from the 1,900-ha Redmond Creek karst aquifer lend insight into the source and timing of recharge to shallow groundwater in the epigenic karst of the U.S midcontinent. Specifically, we find that only 43% of precipitation remains as potential recharge after accounting for evapotranspiration, and 85% of this potential recharge occurs during only four two-week sampling periods. The isotopic composition of precipitation …
Determining Nutrient And Sediment Critical Source Areas With Swat: Effect Of Lumped Calibration, Ruoyu Wang
Determining Nutrient And Sediment Critical Source Areas With Swat: Effect Of Lumped Calibration, Ruoyu Wang
Ruoyu Wang
Application Of A Cave Inventory System To Stimulate Development Of Management Strategies: The Case Of West-Central Florida, Usa, Leslie North
Leslie North
Professional Development For Graduate Students Through Outreach Partnerships With Science Learning Centers, Karen Viskupic, Jennie Rylee, Cindy Busche, Sara Focht, David Cannamela, Annelise Carleton-Hug, James Belthoff, David Wilkins
Professional Development For Graduate Students Through Outreach Partnerships With Science Learning Centers, Karen Viskupic, Jennie Rylee, Cindy Busche, Sara Focht, David Cannamela, Annelise Carleton-Hug, James Belthoff, David Wilkins
David E. Wilkins
With funding from the National Science Foundation’s Graduate STEM Fellows in K-12 Education program (GK-12), students from Boise State University’s graduate programs in biology and geosciences gain experience in curriculum development and delivery in a wide range of settings. The project uniquely partners graduate students with educators at three informal science centers that use their settings to focus on science and environmental issues of local, regional, and global importance. Two-three graduate students per year (GK-12 Fellows) are placed at each learning center where they work to create, modify, and deliver learning activities that incorporate local and regional themes as well …
Thermal Fluid And Fault Interactions At The Intersection Of Two Faults, Agua Caliente, California, Rebekah Wood, James Evans
Thermal Fluid And Fault Interactions At The Intersection Of Two Faults, Agua Caliente, California, Rebekah Wood, James Evans
Rebekah Wood
Agua Caliente Springs lies at a unique intersection between the NNW-trending Elsinore fault and the 40° northeast-dipping, likely inactive West Salton detachment fault; it provides an opportunity to study damage zone geometry, fault behavior in crystalline rocks, a left-stepover, microseismicity, and the influence of thermal fluids on rock deformation. The Elsinore fault bounds the northwestern flank of the Tierra Blanca Mountains with strike-slip and normal motion; the detachment fault wraps around the northernmost portion of the mountains. Damage along the Elsinore ranges in thickness from a narrow slip plane to > 100 m along the eastern flank of the Tierra Blanca …
Legal Education For Sustainability: A Report On Us Progress, John Dernbach
Legal Education For Sustainability: A Report On Us Progress, John Dernbach
John C. Dernbach
This article is an overview of sustainability efforts in US law schools. It describes two sets of drivers for these efforts—inside and outside the legal profession. Drivers from within the legal profession include the American Bar Association as well as several state and local bar associations; law firms and other law organisations; and current and prospective law students. Drivers from outside the legal profession include clients, universities and colleges, nongovernmental organisations, and government. This article then describes what US law schools are now doing in the areas of curriculum, research, buildings and operations, community outreach and service, student life, and …
Thermal Fluid And Fault Interactions At The Intersection Of Two Faults, Agua Caliente, California, Rebekah Wood, James P. Evans
Thermal Fluid And Fault Interactions At The Intersection Of Two Faults, Agua Caliente, California, Rebekah Wood, James P. Evans
Rebekah Wood
No abstract provided.
Radon As An Indicator Of Limited Cross-Shelf Mixing Of Submarine Groundwater Discharge Along An Open Ocean Beach In The South Atlantic Bight During Observed Hypoxia, Clayton Mccoy, Richard Viso, Richard Peterson, Susan Libes, Brent Lewis, John Ledoux, George Voulgaris, Erik Smith, Denise Sanger
Radon As An Indicator Of Limited Cross-Shelf Mixing Of Submarine Groundwater Discharge Along An Open Ocean Beach In The South Atlantic Bight During Observed Hypoxia, Clayton Mccoy, Richard Viso, Richard Peterson, Susan Libes, Brent Lewis, John Ledoux, George Voulgaris, Erik Smith, Denise Sanger
George Voulgaris
Amongst other ocean state parameters, the development of a wave measurement program was supported as part of the Southeast U.S. Atlantic Coastal Ocean Observing System (SEACOOS). The program focused on supporting nearshore wave measurements using both cabled and autonomous systems but also examined the feasibility of using HF Radar systems for remote estimation of wave parameters. The nearshore stations have provided a significant database on directional wave climate for a number of nearshore locations in the region that provide valuable information to coastal engineers and managers for sustainable development along the coast of the southeastern United States. The ability of …
Importance Of Soil Texture To Vineyard Management, Thomas J. Rice
Importance Of Soil Texture To Vineyard Management, Thomas J. Rice
Thomas J. Rice
No abstract provided.
Interpretation Of Rayleigh-Wave Ellipticity Observed With Multicomponent Passive Seismic Interferometry At Hekla Volcano, Iceland, Matthew M. Haney, Andrew Nies, Tim Masterlark, Sarah Needy, Rikke Pedersen
Interpretation Of Rayleigh-Wave Ellipticity Observed With Multicomponent Passive Seismic Interferometry At Hekla Volcano, Iceland, Matthew M. Haney, Andrew Nies, Tim Masterlark, Sarah Needy, Rikke Pedersen
Matthew M. Haney
The 2010 eruption of Eyjafjallajökull has drawn increased attention to Iceland’s Eastern Volcanic Zone (EVZ) due to the threat it poses to the heavily used air-traffic corridors of the northern Atlantic Ocean. Within the EVZ, Hekla is historically one of the most active volcanoes and has exhibited a decadal eruption pattern for the past 40 years. Hekla most recently erupted in 2000 and is thus ripe for another decadal eruption. Because Hekla is generally aseismic, except for a brief time period (hours) leading up to an eruption, monitoring has previously depended on precursory deformation signals (Linde et al., 1993). As …
Can The Battle Against Climate Change Become An Effective Social Movement?, John Dernbach
Can The Battle Against Climate Change Become An Effective Social Movement?, John Dernbach
John C. Dernbach
No abstract provided.
Federal Energy Efficiency And Conservation Laws, John Dernbach, Marianne Tyrrell
Federal Energy Efficiency And Conservation Laws, John Dernbach, Marianne Tyrrell
John C. Dernbach
This paper provides an overview of U.S. law and policy concerning energy efficiency and conservation. The United States appears torn between two narratives - one expressing the abundant demonstrated opportunities provided by energy savings and the other based on a fear of deprivation from using less energy. Rather than choosing between the two, U.S. law and policy splits the difference - embracing efficiency and conservation more or less halfheartedly. Energy efficiency and conservation policy thus has a Groundhog Day aspect, in which the same or similar arguments are made year after year, decade after decade, and often (it appears) to …
Physiographic Factors Defining The Snake River Valley Ava; Beyond "Vin De Idaho", David Wilkins, Virginia Gillerman, Krista Shellie, Ron Bitner, Gregory Jones
Physiographic Factors Defining The Snake River Valley Ava; Beyond "Vin De Idaho", David Wilkins, Virginia Gillerman, Krista Shellie, Ron Bitner, Gregory Jones
David E. Wilkins
Beginning in 1971 with the first plantings of wine grapes, the wine and wine grape industry in southwest Idaho have grown to become significant contributors to the state economy with an annual impact of $75 million (Bierle et al., 2008). With around 1600 acres under cultivation in 50 vineyards producing at least 24 varietals (as of 2007), wine grapes are the state's second largest fruit crop in acreage, with the majority of the crop (USDA, 2008) being produced in the western Snake River Plain of southwestern Idaho and eastern Oregon. In April, 2007, a 21,400 sq. km area in this …
Iron Geochemical Zonation In A Tidally Inundated Acid Sulfate Soil Wetland, Scott G. Johnston, Annabelle F. Keene, Richard T. Bush, Edward D. Burton, Leigh A. Sullivan, Lloyd S. Isaacson, Angus E. Mcelnea, Colin R. Ahern, C Douglas Smith, Bernard Powell
Iron Geochemical Zonation In A Tidally Inundated Acid Sulfate Soil Wetland, Scott G. Johnston, Annabelle F. Keene, Richard T. Bush, Edward D. Burton, Leigh A. Sullivan, Lloyd S. Isaacson, Angus E. Mcelnea, Colin R. Ahern, C Douglas Smith, Bernard Powell
Professor Edward D Burton
Tidal inundation is a new technique for remediating coastal acid sulfate soils (CASS). Here, we examine the effects of this technique on the geochemical zonation and cycling of Fe across a tidally inundated CASS toposequence, by investigating toposequence hydrology, in situ porewater geochemistry, solid-phase Fe fractions and Fe mineralogy. Interactions between topography and tides exerted a fundamental hydrological control on the geochemical zonation, redistribution and subsequent mineralogical transformations of Fe within the landscape. Reductive dissolution of Fe(III) minerals, including jarosite (KFe3(SO4)2(OH)6), resulted in elevated concentrations of porewater Fe2+ (> 30 mmol L−1) in former sulfuric horizons in the upper-intertidal zone. …
Next Generation Recycling & Waste Reduction: Building On The Success Of Pennsylvania’S 1988 Legislation, John C. Dernbach
Next Generation Recycling & Waste Reduction: Building On The Success Of Pennsylvania’S 1988 Legislation, John C. Dernbach
John C. Dernbach
The Municipal Waste Planning, Recycling, and Waste Reduction Act (Act 101 of 1988) keeps millions of tons of materials out of landfills every year. It supports a multi-billion dollar industry that provides tens of thousands of jobs. It also probably affects human environmental behavior more than any other statute in state history. And it reduces greenhouse gas emissions at the same time because of the materials and energy that are saved.
Yet the program is now rudderless and drifting. While the Act contains specific goals, those goals have either been met or ignored, and no new goals have been set. …
Effects Of Hyper-Enriched Reactive Fe On Sulfidisation In A Tidally Inundated Acid Sulfate Soil Wetland, Annabelle F. Keene, Scott G. Johnston, Richard T. Bush, Leigh A. Sullivan, Edward D. Burton, Angus E. Mcelnea, Colin R. Ahern, Bernard Powell
Effects Of Hyper-Enriched Reactive Fe On Sulfidisation In A Tidally Inundated Acid Sulfate Soil Wetland, Annabelle F. Keene, Scott G. Johnston, Richard T. Bush, Leigh A. Sullivan, Edward D. Burton, Angus E. Mcelnea, Colin R. Ahern, Bernard Powell
Professor Edward D Burton
Solid phase Fe and S fractions were examined in an acid sulfate soil (ASS) wetland undergoing remediation via tidal inundation. Considerable diagenetic enrichment of reactive Fe(III) oxides (HCl- and dithionite-extractable) occurred near the soil surface (0–0.05 m depth), where extremely large concentrations up to 3534 μmol/g accounted for ~90% of the total Fe pool. This major source of reactive Fe exerts a substantial influence on S cycling and the formation, speciation and transformation of reduced inorganic S (RIS) in tidally inundated ASS. Under these geochemical conditions, acid volatile sulfide (AVS; up to 57 μmol/g) and elemental sulfur (S0; up to …
Bedrock Geology Of The East Brookfield 7.5 Min. Quadrangle (Ebq), South-Central Massachusetts: Structural And Petrologic Evidence For The Nature Of Regional Deformation And Kinematics Of The Southern Central Maine Zone, Thomas Bradley Walker
Thomas Bradley Walker
Across-strike shortening from Maine to Connecticut is the most conspicuous orogen-scale feature of the New England Appalachians. Mapping (1:24000) and structural analysis in the EBQ and adjacent quads demonstrate that shortening in the southern Central Maine zone was accommodated by orogen-parallel elongation and orogen-normal flattening and thrusting. Map units are Rangeley Fm. (Sil-Bt-Grt schist and gneiss, Bt-Pl±Grt granofels; thin marble layers); Paxton Fm. (Bt-Pl±Grt granofels; calc-silicate granofels; Bt-Sil-Grt schist); tonalitic Bt orthogneiss (Bt-Pl-Qtz±Grt); migmatitic felsic and mafic gneisses and amphibolite; and leucopegmatites (10-m-scale thickness). Foliations (primarily compositional layering, leucosomes in the plane of flattening, Bt SPO, flattened quartz and feldspar …
The Essential And Growing Role Of Legal Education In Achieving Sustainability, John Dernbach
The Essential And Growing Role Of Legal Education In Achieving Sustainability, John Dernbach
John C. Dernbach
This article suggests that law schools need to play a leading role in the national and global effort to achieve sustainability, including the effort to address climate change. The article first describes the various drivers for sustainability in law schools. Clients are increasingly demanding that their lawyers 'walk the talk,' as many businesses and corporations already are. The universities that provide an institutional home for most law schools are also adopting sustainability policies and practices that influence their law schools. Within the legal profession, the American Bar Association, as well as many state and local bar associations, have adopted a …
Soil Development And Glacial History, West Fork Of Beaver Creek, Uinta Mountains, Utah, Daniel C. Douglass, David M. Mickelson
Soil Development And Glacial History, West Fork Of Beaver Creek, Uinta Mountains, Utah, Daniel C. Douglass, David M. Mickelson
Daniel Douglass
The dominant mechanisms of soil formation on a sequence of Smiths Fork, Blacks Fork, and Pre–Blacks Fork moraines in West Fork of Beaver Creek, Uinta Mountains, Utah, (equivalent to Pinedale, Bull Lake, and Pre–Bull Lake moraines of the Wind River Range, respectively) are clay translocation (argilluviation), increasing soil redness (rubification), and the accumulation of organic matter (melanization) and silt-sized particles. The quantity of clay-sized particles and degree of soil redness increase with soil age, but clay accumulation may plateau in the oldest soils. In contrast, the quantity of accumulated organic matter and abundance of silt-sized particles do not appear to …
110 Years Of Avipoxvirus In The Galapagos Islands, Robert Ricklefs
110 Years Of Avipoxvirus In The Galapagos Islands, Robert Ricklefs
Robert Ricklefs
No abstract provided.
110 Years Of Avipoxvirus In The Galapagos Islands, Patricia G. Parker, Elizabeth L. Buckles, Heather L. Farrington, Kenneth Petren, Noah K. Whiteman, Robert E. Ricklefs, Jennifer L. Bollmer, Gustavo Jiménez-Uzcátegui
110 Years Of Avipoxvirus In The Galapagos Islands, Patricia G. Parker, Elizabeth L. Buckles, Heather L. Farrington, Kenneth Petren, Noah K. Whiteman, Robert E. Ricklefs, Jennifer L. Bollmer, Gustavo Jiménez-Uzcátegui
Patricia Parker
Spatial Distribution Of Commercial Banks In Ilorin Metropolis, Kwara State, Nigeria, I B. Abdullahi, M A. Ijaiya, A Abdulraheem, R I. Abdulkadir, R O. Ibrahim
Spatial Distribution Of Commercial Banks In Ilorin Metropolis, Kwara State, Nigeria, I B. Abdullahi, M A. Ijaiya, A Abdulraheem, R I. Abdulkadir, R O. Ibrahim
Confluence Journal of Environmental Studies (CJES), Kogi State University, Nigeria
The spatial distribution of banks in any geographic entity determines the level of accessibility to its services by the public. This study examined the pattern of banks distribution in Ilorin metropolis. Field survey was employed in determining the number of available commercial banks and their respective distances between each other. The spatial analysis technique such as the nearest neighbour analysis as used ascertain the degree of clustering, density and the average distance taken to access these services. The study revealed that about 96% of the total number of banks are situated in the Central Business District which exhibited a very …
Identifying The Stream Erosion Potential Of Cave Levels In Carter Cave State Resort Park, Kentucky, Usa, Eric Peterson, Brianne Jacoby, Toby Dogwiler
Identifying The Stream Erosion Potential Of Cave Levels In Carter Cave State Resort Park, Kentucky, Usa, Eric Peterson, Brianne Jacoby, Toby Dogwiler
Eric Wade Peterson
Cave levels, passages found at similar elevations and formed during the same constant stream base level event, reveal information about paleoclimates and karst geomorphology. The investigation presented here examines how Stream Power Index (SPI) relates to cave levels. The study area, Carter Caves State Resort Park (CCSRP), is a fluviokarst system in northeastern Kentucky containing multiple cave levels. SPI deter-mines the erosive power overland flow based on the assumption that flow accumulation and slope are proportional to potential for sediment entrainment. Part of this digital terrain analysis requires the creation of a flow accumulation raster from a digital elevation model …
Wind-Speed Inversion From Hf Radar First-Order Backscatter Signal, W Shen, Klaus-Werner Gurgel, George Voulgaris, Thomas Schlick, D Stammer
Wind-Speed Inversion From Hf Radar First-Order Backscatter Signal, W Shen, Klaus-Werner Gurgel, George Voulgaris, Thomas Schlick, D Stammer
George Voulgaris
Land-based high-frequency (HF) radars have the unique capability of continuously monitoring ocean surface environments at ranges up to 200 km off the coast. They provide reliable data on ocean surface currents and under slightly stricter conditions can also give information on ocean waves. Although extraction of wind direction is possible, estimation of wind speed poses a challenge. Existing methods estimate wind speed indirectly from the radar derived ocean wave spectrum, which is estimated from the secondorder sidebands of the radar Doppler spectrum. The latter is extracted at shorter ranges compared with the first-order signal, thus limiting the method to short …
Implementation And Modification Of A Three-Dimensional Radiation Stress Formulation For Surf Zone And Rip-Current Applications, Nirnimesh Kumar, George Voulgaris, John Warner
Implementation And Modification Of A Three-Dimensional Radiation Stress Formulation For Surf Zone And Rip-Current Applications, Nirnimesh Kumar, George Voulgaris, John Warner
George Voulgaris
Regional Ocean Modeling System (ROMS v 3.0), a three-dimensional numerical ocean model, was previously enhanced for shallow water applications by including wave-induced radiation stress forcing provided through coupling to wave propagation models (SWAN, REF/DIF). This enhancement made it suitable for surf zone applications as demonstrated using examples of obliquely incident waves on a planar beach and rip current formation in longshore bar trough morphology (Haas and Warner, 2009). In this contribution, we present an update to the coupled model which implements a wave roller model and also a modified method of the radiation stress term based on Mellor (2008, 2011a,b,in …
A Call For Standardization Of Aeolian Process Measurements: Moving Beyond Relative Case Studies, Thomas Barchyn, Chris Hugenholtz, Jean Ellis
A Call For Standardization Of Aeolian Process Measurements: Moving Beyond Relative Case Studies, Thomas Barchyn, Chris Hugenholtz, Jean Ellis
Jean Taylor Ellis
No abstract provided.