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Shallow Water Depth Inversion Based On Data Mining Models, Shu Gao Jan 2015

Shallow Water Depth Inversion Based On Data Mining Models, Shu Gao

LSU Master's Theses

This thesis focuses on applying machine-learning algorithms on water depth inversion from remote sensing images, with a case study in Michigan lake area. The goal is to assess the use of the public available Landsat images on shallow water depth inversion. Firstly, ICESAT elevation data were used to determine the absolute water surface elevation. Airborne bathymetry Lidar data provide systematic measure of water bottom elevation. Subtracting water bottom elevation from water surface elevation will result in water depth. Water depth is associated with reflectance recorded as DN value in Landsat images. Water depth inversion was tested on ANN models, SVM …

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The Erotics Of Race Suicide: The Making Of Whiteness And The Death Drive In The Progressive Era, 1880-1920, Madoka Kishi Jan 2015

The Erotics Of Race Suicide: The Making Of Whiteness And The Death Drive In The Progressive Era, 1880-1920, Madoka Kishi

LSU Doctoral Dissertations

"The Erotics of Race Suicide" examines the frequent representation of suicide in Progressive Era American literature in light of a widely proclaimed socio-political concept of the time: “race suicide.” Coined by the sociologist Edward Ross, the term “race suicide” nominates a nativist fear over the racial enervation of indigenous white Americans. Ross and other commentators on race suicide, most notably Theodore Roosevelt, proclaimed that the diminution of the indigenous white Americans was caused by their unwillingness to breed, signaling the self-destructive, “suicidal” tendency of the race. Consequently, through such means as the enactment of immigration restrictions, the reinforcement of anti-miscegenation …

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Comparative Population Genomics Of Neotropical Forest Birds, Michael Gaston Harvey Jan 2015

Comparative Population Genomics Of Neotropical Forest Birds, Michael Gaston Harvey

LSU Doctoral Dissertations

The causes and implications of differences in geographic variation across species are generally poorly understood, but comparative studies have the potential to provide better understanding of what factors predispose species to undergo population divergence and whether population divergence has lasting evolutionary impacts. Here, I examined geographic variation in birds using molecular data from across the genome. I characterized genetic diversity, estimated population history, and tested for impacts of landscape history as well as ecological traits on genetic parameters. I found evidence that diverse historical processes have led to present-day genetic variation in Neotropical bird species, including divergence, population expansion, migration, …

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Agricultural Policy, Off-Farm Income, And Farmland Values: The Case Of South Korea, Hyunjeong Joo Jan 2015

Agricultural Policy, Off-Farm Income, And Farmland Values: The Case Of South Korea, Hyunjeong Joo

LSU Doctoral Dissertations

Farmland plays a dual role for farm business households; it can be both a production cost and an asset. As a production cost, farmland affects farm production decisions. As an asset, farmland comprises 80% of the total farm households’ assets. The total land available for farming is decreasing due to non-farming demand for land. The primary goal of this dissertation is to examine the impact of farm household income on farmland values. Specifically, I will assess the impact of off-farm income and government subsidies on farmland values in South Korean farm households. The majority of the studies on off-farm income, …

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Excavations And Interpretation Of Two Ancient Maya Salt-Work Mounds, Paynes Creek National Park, Toledo District, Belize, Rachel Mariah Watson Jan 2015

Excavations And Interpretation Of Two Ancient Maya Salt-Work Mounds, Paynes Creek National Park, Toledo District, Belize, Rachel Mariah Watson

LSU Doctoral Dissertations

In 2012, excavations were conducted at Witz Nabb’ and Killer Bee the last remaining above sea level features Paynes Creek National Park, Belize. Salt is a basic biological necessity that was in limited supply at inland Maya cities. The ancient Maya of coastal Belize produced by fire enhanced evaporation of salt enriched brine. Survey and excavation at inundated salt works in a shallow lagoon in Paynes Creek National Park provide extensive evidence of this technique in the form of briquetage, the remains of pots used in the fire evaporation. Lacking is any evidence that the salinity of seawater was enriched …

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Investigations Into Ecogeomorphodynamics Of Coastal Embryo Dunes At Padre Island National Seashore, Texas, Katherine Anne Renken Jan 2015

Investigations Into Ecogeomorphodynamics Of Coastal Embryo Dunes At Padre Island National Seashore, Texas, Katherine Anne Renken

LSU Doctoral Dissertations

This dissertation is an investigation into the interplay between vegetation and aeolian processes in the coastal embryo dune environment at Padre Island National Seashore, Texas. Vegetation is a geomorphic agent, altering aeolian process dynamics. This research adopted a three-pronged approach to improving our understanding of ecogeomorphodynamics in the coastal environment. The first study analyzed large-scale spatiotemporal trends in the vegetation community of the embryo dune environment in order to contextualize smaller scale aeolian processes. Results of this study demonstrated that there was a clear transition in community assemblage from the seaward edge of the embryo dune zone, where species functioned …

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Essays On Sub-National Economic Growth: Evidence From A Global Sample, Dachao Ruan Jan 2015

Essays On Sub-National Economic Growth: Evidence From A Global Sample, Dachao Ruan

LSU Doctoral Dissertations

In this dissertation, I make three important contributions to the literature on regional economics. In Chapter 2, I construct a measure of early development, urban population density (urban population relative to total land area), that is novel to the growth literature, and apply GIS techniques to define and locate regions/cities and obtain geographic and historical measures across regions and cities. Chapter 3 investigates the persistence in sub-national development over the past 150 years. I find that regions that had a relatively higher urban population density in 1850 tend to be relatively more developed today. Geographic and climatic characteristics are significantly …

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Holocene Palynology Of The Gulf Of Papua, Papua New Guinea: Using Modern Palynomorph Distribution To Better Constrain Paleoenvironmental Changes, Marie Louise Thomas Jan 2015

Holocene Palynology Of The Gulf Of Papua, Papua New Guinea: Using Modern Palynomorph Distribution To Better Constrain Paleoenvironmental Changes, Marie Louise Thomas

LSU Doctoral Dissertations

Multiple NSF (National Science Foundation)-funded MARGINS Source-to-Sink cruises were conducted in the Gulf of Papua (GoP), Papua New Guinea (PNG), from 2003 through 2005 to better understand how sediment is created, transported, and deposited. Although much work has been done on the data collected during these cruises, palynological analysis has never been conducted on the hundreds of available cores. The first phase of this project (Chapters 2 and 3) examines the connection between modern depositional regimes in the GoP and species assemblages recovered. Statistical analysis of palynomaceral assemblages (Chapter 2) indicates a correlation between their distribution and bathymetry, sedimentation rate, …

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The Use Of Geographic Information Systems And Ecological Niche Modeling To Map Transmission Risk For Visceral Leishmaniasis In Bahia, Brazil, Moara De Santana Martins Jan 2015

The Use Of Geographic Information Systems And Ecological Niche Modeling To Map Transmission Risk For Visceral Leishmaniasis In Bahia, Brazil, Moara De Santana Martins

LSU Doctoral Dissertations

Leishmaniasis is a public health problem in Brazil, and despite the control programs in place, Bahia remains one of the states with the highest incidence rates of cutaneous leishmaniasis (CL) and visceral leishmaniasis (VL). This study proposed to develop and evaluate the applicability of ecological niche models (ENM) for leishmaniasis, to determine the influence of environmental and socioeconomic factors on the incidence of these diseases at three geographic scales: national, statewide and community. Water availability, garbage collection, precipitation and temperature were the most important variables in predicting areas suitable for VL and CL in the country. The extensive geography of …

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Consumer Mutations: Mediated Subjectivities Of The Incipient Digital Age, Aaron Duplantier Jan 2015

Consumer Mutations: Mediated Subjectivities Of The Incipient Digital Age, Aaron Duplantier

LSU Doctoral Dissertations

In this dissertation, I argue that out of postmodernity, subjectivity has seen distinct mutations inflected by consumer technology. As postmodern mediators of ordinary people, reality TV, Facebook, and YouTube are steeped in concerns about authenticity. Reality TV, for example, cannot escape its authenticity problem because of the conventional hierarchy of production it maintains, a hierarchy that prompts consumer skepticism regarding its truth value. However, seemingly democratic Internet platforms, such as Facebook and YouTube, promise consumer engagement in which users can break down those hierarchical barriers preventing authentic expression. Under the guise of presumed mediational accuracy, the resulting feedback loop between …

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A Spatial Analysis Of Obesity And Its Associations With The Built And Natural Environment, Physical Inactivity, And Socioeconomic And Demographic Conditions In The United States Of America, Mustafa Erdem Jan 2015

A Spatial Analysis Of Obesity And Its Associations With The Built And Natural Environment, Physical Inactivity, And Socioeconomic And Demographic Conditions In The United States Of America, Mustafa Erdem

LSU Doctoral Dissertations

Obesity has strong genetic determinants but the genetic composition of the population does not change rapidly. Thus in this study, the major changes in non-genetic factors such as the development of obesogenic environments and shifting socioeconomic status and lifestyle of individuals are hypothesized to increase the risk of obesity. As the prevalence of obesity continue to increase worldwide with substantial attention in the US, a clearer understanding of how spatial associations between obesity and confounding factors are interrelated is crucial to better tackle the issue of obesity. This study employs the ‘global’ and ‘local’ Exploratory Spatial Data Analysis (ESDA) methods …

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Social Vulnerability In The Wake Of 2010 Bp Oil Spill: The Case Of Southeast Louisiana, Michael Ray Cope Jan 2015

Social Vulnerability In The Wake Of 2010 Bp Oil Spill: The Case Of Southeast Louisiana, Michael Ray Cope

LSU Doctoral Dissertations

The research presented in this dissertation assesses the social impacts of the 2010 BP Deepwater Horizon (BP-DH) oil spill in South Louisiana. The coastal region affected by this disaster is made up of rural communities whose residents rely on the Gulf of Mexico and its resources for their livelihoods. Understanding how this disaster has impacted the general quality of life in spill-affected communities, and how community characteristics have influenced vulnerability and resilience to negative outcomes, has important implications for basic and applied research and public policy. To examine these issues I use one-of-a-kind household survey data from the Community Oil …

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Essays On Mortgage Debt Payment, Meagan Nicole Mccollum Jan 2015

Essays On Mortgage Debt Payment, Meagan Nicole Mccollum

LSU Doctoral Dissertations

In this dissertation, I offer three independent studies that each contribute to the literature on mortgage debt payment. In the first paper, I examine the recent phenomenon of mortgage curtailment (borrowers making voluntary partial prepayments) and link this behavior to consumer deleveraging trends. In the second paper, I use the curtailment measures developed in the first essay to examine heterogeneity in sensitivity to current mortgage leverage in default decisions. Considering the group of borrowers who have previously curtailed mortgage debt, I posit such borrowers should be less sensitive to current leverage than borrowers without past curtailments because previous curtailers have …

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Keeping It Reel?: A Mixed Methods Content Analysis Of The Representation Of Black Male Students And Black Masculinity In College Films, Kevin Joseph Jan 2015

Keeping It Reel?: A Mixed Methods Content Analysis Of The Representation Of Black Male Students And Black Masculinity In College Films, Kevin Joseph

LSU Doctoral Dissertations

The purpose of this convergent parallel mixed methods study was to explore the representations of Black male students and Black masculinity in college films and identify what differences in representations exist when accounting for various characteristics of the films. In the qualitative component, a qualitative content analysis was utilized to analyze the representations in a sample of 18 theatrically released college films. In the quantitative component, a quantitative content analysis was performed to identify any existing differences in Black male student representations when accounting for the films’ genre, decade of release, and depicted institution type. Qualitative analyses revealed that, overall, …

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Three Essays On Land Ownership, Gender, And Agricultural Productivity In The Case Of Developing Countries, Krishna H. Koirala Jan 2015

Three Essays On Land Ownership, Gender, And Agricultural Productivity In The Case Of Developing Countries, Krishna H. Koirala

LSU Doctoral Dissertations

This dissertation set out to evaluate the impact of land ownership and role of gender to the Filipino farmers and to investigate gender difference in agricultural productivity and technical efficiency of Malawian rural households. The first essay investigates the impact of land ownership on the productivity and technical efficiency of rice farmers in the Philippines. We use a 2007-2012 Loop Survey from the International Rice Research Institute (IRRI) and analyzed it by using a stochastic frontier function method. Results show that land ownership has a significant impact on technical efficiency. In particular, counter to the theory, the Comprehensive Agrarian Reform …

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Impact Of The S.T.R.I.P.E.S. Leadership And Extended Orientation Program On Philanthropic Giving, Beverly Brooks Thompson Jan 2015

Impact Of The S.T.R.I.P.E.S. Leadership And Extended Orientation Program On Philanthropic Giving, Beverly Brooks Thompson

LSU Doctoral Dissertations

This study investigated the impact participating in S.T.R.I.P.E.S., a leadership and extended orientation program, had on the philanthropic giving of recent alumni at a research university in the Southeastern United States. The dependent variable for this study was philanthropic giving to the institution during the three years immediately following graduation, as defined by their personal donations as recorded in cumulative giving by the university’s foundation. The goal of the study was to determine to what extent, if any, school leadership development, loyalty, and engagement taught through leadership and extended orientation programs influence the donation behavior of recent graduates. The target …

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An Afro-Brazilian Landscape: African Oil Palms And Socioecological Change In Bahia, Brazil, Case Watkins Jan 2015

An Afro-Brazilian Landscape: African Oil Palms And Socioecological Change In Bahia, Brazil, Case Watkins

LSU Doctoral Dissertations

Palm oil extracted from the African oil palm (Elaeis guineensis Jacq.) is the world’s most produced vegetable oil, commanding a roughly 50 billion dollar global industry. In contrast to the agroindustrial firms and monocultures that dominate global production, a biodiverse cultural landscape of African oil palms in the northeastern Brazilian state of Bahia has for centuries supplied local alimentary and spiritual demands for palm oil—an essential resource in Afro-Brazilian cultures. Drawing on fieldwork, ethnography, archives, GIScience, quantitative analysis, and travelers’, rare, and secondary accounts, this dissertation provides the first comprehensive study of Bahia’s palm oil landscapes, cultures, and economies. Analyzing …

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Just Throw It In The Pot! The Cultural Geography Of Hidden Landscapes And Masked Performances In South Louisiana Gumbo Cooking, Corey David Hotard Jan 2015

Just Throw It In The Pot! The Cultural Geography Of Hidden Landscapes And Masked Performances In South Louisiana Gumbo Cooking, Corey David Hotard

LSU Doctoral Dissertations

One of Louisiana's gifts to the world is gumbo. Yet, gumbo is not just a local dish of renown. It is a metaphor which describes the people, a food that represents a region, and a symbol that stands in for the state. It is also the official dish of Louisiana. The association of gumbo with South Louisiana is recognized worldwide. The word itself evokes images of Louisiana's swampy Cajun landscapes. Yet gumbo is not indigenous to Louisiana nor is it a strictly Cajun dish. This dissertation is about the cultural and historical geography of gumbo. This study delves into the …

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Civic Community, Structural Disadvantage, And Suicide: An Ecological Analysis Of Middle-Age Non-Hispanic White Male Suicide Across The Rural-Urban Continuum, Kayla R. Fontenot Jan 2015

Civic Community, Structural Disadvantage, And Suicide: An Ecological Analysis Of Middle-Age Non-Hispanic White Male Suicide Across The Rural-Urban Continuum, Kayla R. Fontenot

LSU Doctoral Dissertations

This dissertation is a county-level sociological examination of middle-age (35-64) non-Hispanic white male suicides. Although an extensive amount of literature exists on ecological suicide, studies have largely ignored the correlates of suicide among this population group because this stage of the life course has historically demonstrated relatively low and stable rates of suicide. However, suicide rates among middle-age adults have increased dramatically over the last decade, calling for an examination of the correlates of suicide specific to this group. Moreover, the extant suicide literature has largely ignored the possibility of a structural disadvantage-suicide link, as well as the influence of …

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Life After Death: Revitalization Of Social Work Education Programs At Historically Black Colleges And Universities Through Decolonization, Carey Yazeed Jan 2015

Life After Death: Revitalization Of Social Work Education Programs At Historically Black Colleges And Universities Through Decolonization, Carey Yazeed

LSU Doctoral Dissertations

One of the major problems facing social work education in the United States is that there are too many programs. Currently 463 Bachelor of Social Work programs exist in the United States. The growth spurt of programs has been justified by the belief that the profession of social work will grow faster than average by 2018. Institutions of higher learning are feeling the pressure to fill the impending demand for more social workers in the U.S. and social work education programs are feeling the pressure to fulfill the demand by increasing student enrollment. This demand for growth has created a …

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Curated Landscapes: The Evolution Of The Postcard Shot, Louise Cheetham Jan 2015

Curated Landscapes: The Evolution Of The Postcard Shot, Louise Cheetham

LSU Doctoral Dissertations

This research examines traveling landscape-objects in tourist environments and their impact on cultural identity in America. Traveling landscape-objects include any form of tourist paraphernalia or representation of cultural landscapes. For these purposes, I studied different forms of tourist representation of the Natchez Trace Parkway, an entity of the National Park Service. Research areas include the content, location, and changing medium of traveling landscape-objects, while also addressing their meaning, frequency, quality, role in non-representational arenas, and the future of tourist representations. Methods include detailed cataloguing and analysis of over one thousand images of various shapes and forms ⎯ ranging from early …

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Use Of Copula And Auxiliary Be By African American Children With Gullah/Geechee Heritage, Jessica Richardson Berry Jan 2015

Use Of Copula And Auxiliary Be By African American Children With Gullah/Geechee Heritage, Jessica Richardson Berry

LSU Doctoral Dissertations

The purpose of this study was to document the auxiliary and copula BE system of African American (AA) children with Gullah/Geechee (GG) heritage and to compare the findings to those from African American English (AAE)-speaking children without this heritage and to what has been documented in previous studies of Gullah and AAE. The data came from 38 children, aged five to six years. Nineteen were from rural South Carolina and classified as GG, and 19 were from rural Louisiana and classified as AAE. All were developing language typically, and the groups were matched on a number of socio-demographic variables and …

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Thomas Davis, The Nation, And Songs Of Irish Nationalism, Timothy Mason Love Jan 2015

Thomas Davis, The Nation, And Songs Of Irish Nationalism, Timothy Mason Love

LSU Doctoral Dissertations

Thomas Davis was a significant figure in the flourishing movement of cultural nationalism in mid-nineteenth-century Ireland. A cofounder of _The Nation_, Davis used the journal’s pages as a medium through which to promote a nationalist vision for Ireland distinctive for its nonsectarian appeal. Along with impassioned editorial prose, Davis employed poetry and song to carry his message to the public. “Young Ireland,” as Davis and his colleagues became known, focused their efforts especially on the traditional Irish song, elevating it as a symbol for their cultural heritage while harnessing its emotional power to strengthen their political cause. The songs printed …

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Delineating Hospital Service Areas In Florida Based On Patients’ Travel Patterns, Peng Jia Jan 2015

Delineating Hospital Service Areas In Florida Based On Patients’ Travel Patterns, Peng Jia

LSU Doctoral Dissertations

Longer travel times to hospitals and other medical resources have been shown to be associated with decreasing health outcome and increasing mortality risk. Many countries have actively responded to the call of the World Health Organization (WHO) on creating local environments for the provision of and residents’ access to health resources. The hospital service areas (HSAs) and hospital referral regions (HRRs) have been proposed as more proper functional units for analysis of performance of healthcare market. However, the widely used Dartmouth HSAs and HRRs were produced solely based on two-decade-old Medicare hospitalization records. In this study, the effectiveness of the …

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The Journeys Of Humboldt: A Guide To Efrain Oscher’S Composition For Orchestra, Bernardo Virgilio Miethe Jan 2015

The Journeys Of Humboldt: A Guide To Efrain Oscher’S Composition For Orchestra, Bernardo Virgilio Miethe

LSU Doctoral Dissertations

The purpose of this monograph is to provide a conductor’s guide to the preparation, performance, and programing of Efrain Oscher’s composition for orchestra “Los Viajes de Humboldt” since there has been no other research done on this composition. This monograph offers a biography of the composer and an insight into the composer’s intentions and thoughts when composing this piece. The following monograph also provides a better understanding of the historical context of this piece by detailing the journey of Alexander von Humboldt to the Americas, in particular, his experiences of his time spent in Venezuela from 1799 to 1800. Moreover, …

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The Edible Landscape: Plant Breeding, Farming, And Sustainbility In Northwest Portugal, Joseph Blanchard Powell Jan 2015

The Edible Landscape: Plant Breeding, Farming, And Sustainbility In Northwest Portugal, Joseph Blanchard Powell

LSU Doctoral Dissertations

This dissertation is an ethnographic analysis of a participatory plant breeding project in northwest Portugal. Participatory plant breeding (PPB) is a crop enhancement strategy that brings farmers and plant breeders together in the effort to conserve crop genetic resources in-situ, improve yield, and increase the overall agricultural sustainability in agriculture. One strategy in PPB calls for plant breeders to spend considerable time on working farms to understand better farmers’ knowledge and skill, and to survey the existing crop genetic diversity within the existing resource limitations on farms. Although there are clear social implications for PPB, the bulk of PPB evaluative …

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Planning Towards Equal Spatial Accessibility Of Nci Cancer Centers Across Geographic Areas And Demographic Groups In The U.S., Cong Fu Jan 2015

Planning Towards Equal Spatial Accessibility Of Nci Cancer Centers Across Geographic Areas And Demographic Groups In The U.S., Cong Fu

LSU Doctoral Dissertations

The Cancer Centers designated by the National Cancer Institute (NCI) form the “backbone” of the cancer care system in the United States. Awarded via a peer-review process and being re-evaluated every 3 to 5 years, an NCI Cancer Center receives substantial financial support from NCI grants. When the quality standard is not compromised, we argue that an additional criterion for improving and promoting equal accessibility should be factored into the designation and planning process of NCI Cancer Centers. With the help of regression and dummy variables, this research evaluates geographic disparities in spatial accessibility of the NCI Cancer Centers across …

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Local Spatial Structure Of Forest Biomass And Its Consequences For Remote Sensing Of Carbon Stocks, M. Réjou-Méchain, H. C. Muller-Landau, M. Detto, S. C. Thomas, T. Le Toan, S. S. Saatchi, J. S. Barreto-Silva, N. A. Bourg, S. Bunyavejchewin, N. Butt, W. Y. Brockelman, M. Cao, D. Cárdenas, J. M. Chiang, G. B. Chuyong, K. Clay, R. Condit, H. S. Dattaraja, S. J. Davies, A. Duque, S. Esufali, C. Ewango, R. H.S. Fernando, C. D. Fletcher, I. A.U. N. Gunatilleke, Z. Hao, K. E. Harms, T. B. Hart, B. Hérault, R. W. Howe, S. P. Hubbell, D. J. Johnson, D. Kenfack Dec 2014

Local Spatial Structure Of Forest Biomass And Its Consequences For Remote Sensing Of Carbon Stocks, M. Réjou-Méchain, H. C. Muller-Landau, M. Detto, S. C. Thomas, T. Le Toan, S. S. Saatchi, J. S. Barreto-Silva, N. A. Bourg, S. Bunyavejchewin, N. Butt, W. Y. Brockelman, M. Cao, D. Cárdenas, J. M. Chiang, G. B. Chuyong, K. Clay, R. Condit, H. S. Dattaraja, S. J. Davies, A. Duque, S. Esufali, C. Ewango, R. H.S. Fernando, C. D. Fletcher, I. A.U. N. Gunatilleke, Z. Hao, K. E. Harms, T. B. Hart, B. Hérault, R. W. Howe, S. P. Hubbell, D. J. Johnson, D. Kenfack

Faculty Publications

© Author(s) 2014. Advances in forest carbon mapping have the potential to greatly reduce uncertainties in the global carbon budget and to facilitate effective emissions mitigation strategies such as REDD+ (Reducing Emissions from Deforestation and Forest Degradation). Though broad-scale mapping is based primarily on remote sensing data, the accuracy of resulting forest carbon stock estimates depends critically on the quality of field measurements and calibration procedures. The mismatch in spatial scales between field inventory plots and larger pixels of current and planned remote sensing products for forest biomass mapping is of particular concern, as it has the potential to introduce …

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The Economics Of Mitigation Of Water Pollution Externalities From Biomass Production For Energy, Naveen Adusumilli, Taesoo Lee, M. Edward Rister, Ronald D. Lacewell Dec 2014

The Economics Of Mitigation Of Water Pollution Externalities From Biomass Production For Energy, Naveen Adusumilli, Taesoo Lee, M. Edward Rister, Ronald D. Lacewell

Faculty Publications

© 2014 by the authors; licensee MDPI, Basel, Switzerland. To fulfill the national bioenergy goals of the United States, conversion of marginal lands to intensive biomass crop production and/or application of greater amounts of nutrients to existing cropland could be expected. Such change in agricultural practices could produce unintended environmental consequences such as water quality degradation. Select Best Management Practices (BMPs) are evaluated for water quality mitigation effectiveness as well as for their relative cost-effectiveness, issues that are often ignored in evaluation of biofuels as a sustainable solution for energy demand. The water quality impacts of converting pastureland to intensive …

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Ages And Magnetic Structures Of The South China Sea Constrained By Deep Tow Magnetic Surveys And Iodp Expedition 349, Chun Feng Li, Xing Xu, Jian Lin, Zhen Sun, Jian Zhu, Yongjian Yao, Xixi Zhao, Qingsong Liu, Denise K. Kulhanek, Jian Wang, Taoran Song, Junfeng Zhao, Ning Qiu, Yongxian Guan, Zhiyuan Zhou, Trevor Williams, Rui Bao, Anne Briais, Elizabeth A. Brown, Yifeng Chen, Peter D. Clift, Frederick S. Colwell, Kelsie A. Dadd, Weiwei Ding, Iván Hernández Almeida, Xiao Long Huang, Sangmin Hyun, Tao Jiang, Anthony A.P. Koppers, Qianyu Li, Chuanlian Liu, Zhifei Liu, Renata H. Nagai Dec 2014

Ages And Magnetic Structures Of The South China Sea Constrained By Deep Tow Magnetic Surveys And Iodp Expedition 349, Chun Feng Li, Xing Xu, Jian Lin, Zhen Sun, Jian Zhu, Yongjian Yao, Xixi Zhao, Qingsong Liu, Denise K. Kulhanek, Jian Wang, Taoran Song, Junfeng Zhao, Ning Qiu, Yongxian Guan, Zhiyuan Zhou, Trevor Williams, Rui Bao, Anne Briais, Elizabeth A. Brown, Yifeng Chen, Peter D. Clift, Frederick S. Colwell, Kelsie A. Dadd, Weiwei Ding, Iván Hernández Almeida, Xiao Long Huang, Sangmin Hyun, Tao Jiang, Anthony A.P. Koppers, Qianyu Li, Chuanlian Liu, Zhifei Liu, Renata H. Nagai

Faculty Publications

© 2014. American Geophysical Union. All Rights Reserved. Combined analyses of deep tow magnetic anomalies and International Ocean Discovery Program Expedition 349 cores show that initial seafloor spreading started around 33 Ma in the northeastern South China Sea (SCS), but varied slightly by 1-2 Myr along the northern continent-ocean boundary (COB). A southward ridge jump of ∼20 km occurred around 23.6 Ma in the East Subbasin; this timing also slightly varied along the ridge and was coeval to the onset of seafloor spreading in the Southwest Subbasin, which propagated for about 400 km southwestward from ∼23.6 to ∼21.5 Ma. The …

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