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Determining The Viability Of Recent Storms As Modern Analogues For North-Central Gulf Of Mexico Paleotempestology Through Sedimentary Analysis And Storm Surge Reconstruction, Joshua Caleb Bregy 2016 University of Southern Mississippi

Determining The Viability Of Recent Storms As Modern Analogues For North-Central Gulf Of Mexico Paleotempestology Through Sedimentary Analysis And Storm Surge Reconstruction, Joshua Caleb Bregy

Master's Theses

The northern Gulf of Mexico has been devastated by recent intense storms. Camille (1969) and Katrina (2005) are two notable hurricanes that made landfall in virtually the same location in Mississippi. However, fully understanding the risks and processes associated with hurricane impacts is impeded by a short and fragmented instrumental record. Paleotempestology could potentially use modern analogues from intense storms in this region to extend the hurricane record back to pre-observational time. Existing empirically based models can back-calculate surge heights over coastal systems as a function of transport distance, particle settling velocity, and gravitational acceleration. We collected cores in a ...


Design Of A Conditioner For Smoothing Wind Turbine Output Power, Murali Bottu, Mariesa Crow, A. Curt Elmore 2016 Missouri University of Science and Technology

Design Of A Conditioner For Smoothing Wind Turbine Output Power, Murali Bottu, Mariesa Crow, A. Curt Elmore

Mariesa Crow

As a result of wind speed intermittency, highly variable wind power output can adversely impact local loads. We propose a conditioner to smooth the variable wind power by utilizing the energy of an ultracapacitor. The conditioner is based on a single phase voltage source inverter (VSI) connected between the grid interconnection point and the ultracapacitor. The shunt VSI injects or absorbs active power from the line to smooth the wind power by utilizing the short term storage capabilities of the ultracapacitor. The ultracapacitor is connected to the DC link through a DC-DC converter, which maintains the voltage of the DC ...


The Illinois Soil Nitrogen Test: Should It Be Used In Iowa?, John E. Sawyer, Mohammod Ali Tabatabai 2016 Iowa State University

The Illinois Soil Nitrogen Test: Should It Be Used In Iowa?, John E. Sawyer, Mohammod Ali Tabatabai

John E. Sawyer

The test was developed several years ago at the University of Illinois by researchers in the Department of Natural Resources and Environmental Sciences. It is a laboratory procedure designed to measure N liberated from soil heated for 5 hours with dilute alkali solution (sodium hydroxide). The test does not measure nitrate, but does measure exchangeable ammonium and a fraction of soil organic N.


Evaluation Of Fertilizer Additives For Enhanced Nitrogen Efficiency In Corn, Daniel W. Barker, John E. Sawyer, Michael J. Castellano 2016 Iowa State University

Evaluation Of Fertilizer Additives For Enhanced Nitrogen Efficiency In Corn, Daniel W. Barker, John E. Sawyer, Michael J. Castellano

John E. Sawyer

The use of N additives and slow release materials with ammoniacal fertilizer varies throughout the U.S. Corn Belt due to differing N loss potentials across climate, soils, and production systems. In Iowa, recent years of high rainfall events and prolonged wet soil conditions has renewed interest to protect fertilizer N loss from denitrification, leaching, and greenhouse gas emission with use of nitrification inhibitors. These loss processes can be significant in Iowa soils that are poorly drained and have high organic matter, high pH, and high populations of denitrifying bacteria. Subsurface tile drainage is also prevalent in farmer fields throughout ...


Drought Impacts On Soil Fertility Management, John E. Sawyer 2016 Iowa State University

Drought Impacts On Soil Fertility Management, John E. Sawyer

John E. Sawyer

If crop production was severely reduced because of dry conditions this year, there are a few items you can consider when planning for next year's crop. One, with severely damaged crops and low yields you might credit some of the phosphorus (P) and potassium (K) applied for this year's crop to next year, as much less removal will occur in grain harvest of the lower than expected yield.


45th Annual North Central Extension-Industry Soil Fertility Conference, John E. Sawyer 2016 Iowa State University

45th Annual North Central Extension-Industry Soil Fertility Conference, John E. Sawyer

John E. Sawyer

If you would like to learn more about current soil fertility issues and research being conducted at universities across the North Central region, then consider attending the 45th Annual North Central Extension-Industry Soil Fertility Conference on November 4-5, 2015, from 1 p.m. to noon, at the Holiday Inn Airport in Des Moines, Iowa. The conference will include invited presentations from university and industry leaders, research reports from university soil fertility researchers, and posters outlining research by graduate students at universities across the North Central region (Illinois, Indiana, Iowa, Kansas, Kentucky, Michigan, Minnesota, Nebraska, North Dakota, Ohio, Ontario, Pennsylvania, South ...


Sulfur Management For Iowa Crop Production, John E. Sawyer, Brian J. Lang, Daniel W. Barker 2016 Iowa State University

Sulfur Management For Iowa Crop Production, John E. Sawyer, Brian J. Lang, Daniel W. Barker

John E. Sawyer

Summary of statewide evaluation in Iowa of alfalfa and corn yield response to applied sulfur fertilizers. On-farm, small-plot and field-length strip trial yield response data presented from 2005-2013.


Nutrient Considerations With Corn Stover Harvest, John E. Sawyer, Antonio P. Mallarino 2016 Iowa State University

Nutrient Considerations With Corn Stover Harvest, John E. Sawyer, Antonio P. Mallarino

John E. Sawyer

Weigh the relationships between corn stover harvest (as compared to grain only harvest) with the research presented in this publication.

Make informed decisions about using stover harvest for bioenergy and using corn residue for soil sustainability. Find corn N, P, and K fertilization recommendations needed to maintain desirable soil-test values.


Interpretation Of Soil Test Results, Antonio P. Mallarino, John E. Sawyer 2016 Iowa State University

Interpretation Of Soil Test Results, Antonio P. Mallarino, John E. Sawyer

John E. Sawyer

A detailed explanation on how to interpret soil test results to assist with soil nutrient recommendations.


Identifying Fecal Sources In A Selected Catchment Reach Using Multiple Source-Tracking Tools, Jason R. Vogel, Donald M. Stoeckel, Regina Lamendella, Ronald B. Zelt, Jorge W. Santo Domingo, Steven R. Walker, Daniel B. Oerther 2016 USGS

Identifying Fecal Sources In A Selected Catchment Reach Using Multiple Source-Tracking Tools, Jason R. Vogel, Donald M. Stoeckel, Regina Lamendella, Ronald B. Zelt, Jorge W. Santo Domingo, Steven R. Walker, Daniel B. Oerther

Daniel B. Oerther

Given known limitations of current microbial source-tracking (MST) tools, emphasis on small, simple study areas may enhance interpretations of fecal contamination sources in streams. In this study, three MST tools—Escherichia coli repetitive element polymerase chain reaction (rep-PCR), coliphage typing, and Bacteroidales 16S rDNA host-associated markers—were evaluated in a selected reach of Plum Creek in south-central Nebraska. Water-quality samples were collected from six sites. One reach was selected for MST evaluation based on observed patterns of E. coli contamination. Despite high E. coli concentrations, coliphages were detected only once among water samples, precluding their use as a MST tool ...


Exchange Flows In An Urban Water Body: Bayou St. John Responses To The Removal Of Flood Control Structures, Future Water Elevation Control, And Water Quality, Robin L. Schroeder 2016 UNO

Exchange Flows In An Urban Water Body: Bayou St. John Responses To The Removal Of Flood Control Structures, Future Water Elevation Control, And Water Quality, Robin L. Schroeder

Robin S. Schroeder MD

Bayou St. John, an urban water body extending south from Lake Pontchartrain, has two anthropogenic structures that regulate flow from the Lake . The City of New Orleans has plans to remove the inner control structure to improve water quality. Field and numerical methods used in this study show removing this structure increased water elevations throughout the Bayou but resulted in lower water elevation signal amplitudes that caused a lower tidal flow exchange from north to south. Bulk Richardson numbers showed mixing was inversely related to flow and the Bayou generally remains stratified. Resuspension of contaminated sediment could negatively impact the ...


Comparing Remotely Sensed Pictometry® Web Based Slope Distance Estimates With In Situ Total Station And Tape Slope Distance Estimates, David L. Kulhavy, Daniel R. Unger, Yanli Zhang, Phillip Bedford, I-Kuai Hung 2016 Stephen F Austin State University

Comparing Remotely Sensed Pictometry® Web Based Slope Distance Estimates With In Situ Total Station And Tape Slope Distance Estimates, David L. Kulhavy, Daniel R. Unger, Yanli Zhang, Phillip Bedford, I-Kuai Hung

International Journal of Geospatial and Environmental Research

Slope distance was measured between the top of 30 light poles and their respective ground level coordinate identified within a central parking lot on the campus of Stephen F. Austin State University, Nacogdoches, Texas. Slope distance measured using Pictometry® hyperspatial 4-inch (10.2 centimeters) multispectral imagery within a web based interface was compared to in situ total station and tape measured slope distance. The range for mean slope distance for Pictometry®, total station, and tape measured slope distance was 0.05 meters. Mean slope distance was 15.36 meters, 15.37 meters, and 15.41 meters for Pictometry®, total station ...


Dynamics Of Pyroclastic Density Currents: Conditions That Promote Substrate Erosion And Self-Channelization - Mount St Helens, Washington (Usa), Brittany D. Brand, Chelsea Mackaman-Lofland, Nicholas M. Pollock, Sylvana Bendaña, Blaine Dawson, Pamela Wichgers 2016 Boise State University

Dynamics Of Pyroclastic Density Currents: Conditions That Promote Substrate Erosion And Self-Channelization - Mount St Helens, Washington (Usa), Brittany D. Brand, Chelsea Mackaman-Lofland, Nicholas M. Pollock, Sylvana Bendaña, Blaine Dawson, Pamela Wichgers

Brittany D. Brand

The May 18th, 1980 eruption of Mount St. Helens (MSH) produced multiple pyroclastic density currents (PDCs), burying the area north of the volcano under 10s of meters of deposits. Detailed measurements of recently exposed strata from these PDCs provide substantial insight into the dynamics of concentrated currents including inferences on particle-particle interactions, current mobility due to sedimentation fluidization and internal pore pressure, particle support mechanisms, the influence of surface roughness and the conditions that promote substrate erosion and self-channelization. Four primary flow units are identified along the extensive drainage system north of the volcano. Each flow unit has intricate vertical ...


On A Desert Island With Unit Sticks, Continued Fractions And Lagrange, Victor J. Ricchezza, H. L. Vacher 2016 University of South Florida

On A Desert Island With Unit Sticks, Continued Fractions And Lagrange, Victor J. Ricchezza, H. L. Vacher

Numeracy

GLY 4866, Computational Geology, provides an opportunity, welcomed by our faculty, to teach quantitative literacy to geology majors at USF. The course continues to evolve although the second author has been teaching it for some 20 years. This paper describes our experiences with a new lab activity that we are developing on the core issue of measurement and units. The activity is inspired by a passage in the 2008 publication of lectures that Joseph Louis Lagrange delivered at the Ecole Normale in 1795. The activity envisions that young scientists are faced with the need to determine the dimensions of a ...


Stratigraphy And Sedimentology Of The Cretaceous Mowry Shale In The Northern Bighorn Basin Of Wyoming: Implications For Unconventional Resource Exploration And Development, Jordan M. Bremer 2016 University of Nebraska - Lincoln

Stratigraphy And Sedimentology Of The Cretaceous Mowry Shale In The Northern Bighorn Basin Of Wyoming: Implications For Unconventional Resource Exploration And Development, Jordan M. Bremer

Dissertations & Theses in Earth and Atmospheric Sciences

The Mowry Shale (Albian-Cenomanian) is an extensive mudrock dominated unit historically believed to represent a single, long-term deep water sequence within the Western Cordilleran Foreland Basin of North America. While the Mowry Shale has received study for almost a century, detailed stratigraphic context is still lacking. Such an understanding will be required as the formation is increasingly explored as an unconventional resource play.

This study examines the stratigraphy of the interval between the Muddy sandstone and the Frontier Formation, focusing on the Mowry Shale both at outcrop and in the subsurface of the Bighorn Basin of northwestern Wyoming. Detailed measured ...


Lower Lakes Carbon Project: The Aquatic Vegetation Contribution To Carbon Pools, Leigh A. Sullivan, Nicholas J. Ward, Richard T. Bush, Alicia Hidden, Diane M. Fyfe, Michelle Bush, Crystal A. Maher 2016 Southern Cross University

Lower Lakes Carbon Project: The Aquatic Vegetation Contribution To Carbon Pools, Leigh A. Sullivan, Nicholas J. Ward, Richard T. Bush, Alicia Hidden, Diane M. Fyfe, Michelle Bush, Crystal A. Maher

Adjunct Professor Richard T Bush

No abstract provided.


Lower Lakes Carbon Project: The Aquatic Vegetation Contribution To Carbon Pools, Leigh A. Sullivan, Nicholas J. Ward, Richard T. Bush, Alicia Hidden, Diane M. Fyfe, Michelle Bush, Crystal A. Maher 2016 Southern Cross University

Lower Lakes Carbon Project: The Aquatic Vegetation Contribution To Carbon Pools, Leigh A. Sullivan, Nicholas J. Ward, Richard T. Bush, Alicia Hidden, Diane M. Fyfe, Michelle Bush, Crystal A. Maher

Dr Nicholas J Ward

No abstract provided.


Lower Lakes Carbon Project: The Aquatic Vegetation Contribution To Carbon Pools, Leigh A. Sullivan, Nicholas J. Ward, Richard T. Bush, Alicia Hidden, Diane M. Fyfe, Michelle Bush, Crystal A. Maher 2016 Southern Cross University

Lower Lakes Carbon Project: The Aquatic Vegetation Contribution To Carbon Pools, Leigh A. Sullivan, Nicholas J. Ward, Richard T. Bush, Alicia Hidden, Diane M. Fyfe, Michelle Bush, Crystal A. Maher

Adjunct Professor Leigh A Sullivan

No abstract provided.


Global Land Surface Emissivity Estimation From Amsr2 Observations, Satya Prakash, Hamid Norouzi, Marzieh Azarderakhsh, Reginald Blake, Kibrewossen Tesfagiorgis 2016 CUNY New York City College of Technology

Global Land Surface Emissivity Estimation From Amsr2 Observations, Satya Prakash, Hamid Norouzi, Marzieh Azarderakhsh, Reginald Blake, Kibrewossen Tesfagiorgis

Publications and Research

A reliable estimate of emissivity is critical for a wide range of applications for the atmosphere, the biosphere, the lithosphere, the cryosphere, and the hydrosphere. This study uses three years (August 2012 – July 2015) of data from the Advanced Microwave Scanning Radiometer-2 (AMSR2) sensor that is onboard the Global Change Observation Mission 1st Water (GCOM-W1) satellite to explore estimates of instantaneous global land emissivity. A method is adopted to remove the known inconsistency in penetration depths between microwave brightness temperatures and infrared-based ancillary data that could cause differences between day and night emissivity estimates. After removing the diurnal atmospheric effects ...


Devonian Hydrocarbon Production In South Central Kentucky: A Gis Study, Andrew David Reeder 2016 Western Kentucky University

Devonian Hydrocarbon Production In South Central Kentucky: A Gis Study, Andrew David Reeder

Masters Theses & Specialist Projects

Historically, Devonian Corniferous hydrocarbon production in south-central Kentucky has been a major contributor to the total hydrocarbon resources within Butler, Edmonson, and Warren counties. The Corniferous adds to the already large hydrocarbon totals produced from the Illinois Basin; however, this hydrocarbon contribution does not come without major pitfalls and inconsistencies. The south-central Kentucky Devonian Corniferous rocks comprise a diverse and complex hydrocarbon system made up of multiple migration pathways, trapping mechanisms, and seals. The multiple Corniferous units all derive production from the same source rock: the New Albany Shale.

A Geographic Information System (GIS) containing data on surface elevations, structure ...


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