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Full-Text Articles in Physical Sciences and Mathematics

Impacts Of Pacific Ssts On Atmospheric Circulations Leading To California Winter Precipitation Variability: A Diagnostic Modeling, Boksoon Myoung, Sang-Wook Yeh, Jinwon Kim, Menas Kafatos Nov 2018

Impacts Of Pacific Ssts On Atmospheric Circulations Leading To California Winter Precipitation Variability: A Diagnostic Modeling, Boksoon Myoung, Sang-Wook Yeh, Jinwon Kim, Menas Kafatos

Mathematics, Physics, and Computer Science Faculty Articles and Research

One of the primary meteorological causes of the winter precipitation deficits and droughts in California (CA) is anomalous developments and maintenance of upper-tropospheric ridges over the northeastern Pacific. In order to understand and find the key factors controlling the winter precipitation variability in CA, the present study examines two dominant atmospheric modes of the 500 hPa geopotential height in the Northern Hemisphere using an Empirical Orthogonal Function (EOF) and their associated large-scale circulation patterns for the last 41 winters (1974/75–2014/15). Explaining 17.5% of variability, the second mode (EOF2) shows strong anti-cyclonic circulations in the North Pacific ...


Overpumping Leads To California Groundwater Arsenic Threat, Ryan G. Smith, Rosemary Knight, Scott Fendorf Aug 2018

Overpumping Leads To California Groundwater Arsenic Threat, Ryan G. Smith, Rosemary Knight, Scott Fendorf

Ryan G. Smith

Water resources are being challenged to meet domestic, agricultural, and industrial needs. To complement finite surface water supplies that are being stressed by changes in precipitation and increased demand, groundwater is increasingly being used. Sustaining groundwater use requires considering both water quantity and quality. A unique challenge for groundwater use, as compared with surface water, is the presence of naturally occurring contaminants within aquifer sediments, which can enter the water supply. Here we find that recent groundwater pumping, observed through land subsidence, results in an increase in aquifer arsenic concentrations in the San Joaquin Valley of California. By comparison, historic ...


Temperaments And Learning Styles Vs. Academic Performance Of First-Semester Physics Students, Shel Randall Jul 2018

Temperaments And Learning Styles Vs. Academic Performance Of First-Semester Physics Students, Shel Randall

Shel Randall

Purpose: The purpose of this retrospective quantitative correlational study was to determine the relationship of student temperament (as measured by the online Jung Typology Test) and learning styles (as measured by the Felder-Soloman Index of Learning Styles) to academic performance of first-semester physics students while enrolled in a Sierra Community College Physics Department course during the 2014 – 2016 school years
Methodology: This is a retrospective quantitative correlational study of the relationship between student personality information self-reported by survey and student performance as measured by semester grades. The historical survey data consists of results from two online assessments: the JTT (measuring ...


Automating Wetland Prioritization Analyses Using Gis, Blythe Hawley Spendlove Jul 2018

Automating Wetland Prioritization Analyses Using Gis, Blythe Hawley Spendlove

MS GIS Program Major Individual Projects

In environmental and conservation fields, managers and other decision makers need to prioritize their efforts to specific areas using multiple-criteria decision analysis, to maximize environmental protection given limitations of budget and time. However, creating these prioritization models requires a combination of both scientific and technical skills, and many of those with the expertise to create scientifically sound prioritization models have limited time to devote to the technical aspects of the analysis. There was a need to automate this analysis process to enable scientists and other decision makers to quickly repeat analyses with different criteria and compare the results.

This project ...


Durmid Ladder Structure And Its Implications For The Nucleation Sites Of The Next M >7.5 Earthquake On The San Andreas Fault Or Brawley Seismic Zone In Southern California, Susanne U. Jänecke, Daniel K. Markowski, James P. Evans, Patricia Persaud, Miles Kenney Jun 2018

Durmid Ladder Structure And Its Implications For The Nucleation Sites Of The Next M >7.5 Earthquake On The San Andreas Fault Or Brawley Seismic Zone In Southern California, Susanne U. Jänecke, Daniel K. Markowski, James P. Evans, Patricia Persaud, Miles Kenney

Geology Faculty Publications

We integrated new geologic data with published geophysical data to document that the southernmost San Andreas fault zone, onshore of the Salton Sea, southern California, is a transpressional, 1–4-km-wide ladder-like structure. This newly identified Durmid ladder structure is a voluminous right-reverse fault zone that broadens across Durmid Hill around rotating domains of regularly spaced, left- and right- lateral cross faults. The active East Shoreline fault zone of the San Andreas fault forms the southwest margin of this fault zone, and it is generally parallel to the main strand of the San Andreas fault zone for >30 km, deforms Pliocene ...


Overpumping Leads To California Groundwater Arsenic Threat, Ryan G. Smith, Rosemary Knight, Scott Fendorf Jun 2018

Overpumping Leads To California Groundwater Arsenic Threat, Ryan G. Smith, Rosemary Knight, Scott Fendorf

Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works

Water resources are being challenged to meet domestic, agricultural, and industrial needs. To complement finite surface water supplies that are being stressed by changes in precipitation and increased demand, groundwater is increasingly being used. Sustaining groundwater use requires considering both water quantity and quality. A unique challenge for groundwater use, as compared with surface water, is the presence of naturally occurring contaminants within aquifer sediments, which can enter the water supply. Here we find that recent groundwater pumping, observed through land subsidence, results in an increase in aquifer arsenic concentrations in the San Joaquin Valley of California. By comparison, historic ...


Causal Fire Relationships In Sonoma County & Identification Of Suitable Fire Management Strategies, Allison Howlett May 2018

Causal Fire Relationships In Sonoma County & Identification Of Suitable Fire Management Strategies, Allison Howlett

Master's Projects and Capstones

Acknowledging recent wildfires that have set historic fire size records in both Northern and Southern California, it is important to understand what impacts can be expected and how variations in regional characteristics can influence fire severity. Combining a long history of droughts alongside periodic rain events this paper considers the causal fire relationships and fire management strategies necessary for implementation for future fire size and fire severity reduction in Sonoma County. Throughout this paper a subset of questions are answered regarding fire severity, precipitation, erosion and sediment response. Methods include the examination of peer-reviewed articles and grey sources to identify ...


Santa Clara Magazine, Volume 59 Number 1, Spring 2018, Santa Clara University Apr 2018

Santa Clara Magazine, Volume 59 Number 1, Spring 2018, Santa Clara University

Santa Clara Magazine

22 - Trust Me After decades of declining trust in journalism, here’s some good news. Introducing the Trust Project. By Steven Boyd Saum and Deborah Lohse. Illustrations by Franziska Barczyk. 28 - Nobel Beginnings Santa Clara Professor Hersh Shefrin, fellow economist Richard Thaler, and the beginning of the fight to have behavioral economics taken seriously. There was yelling involved. By Deborah Lohse. Illustrations by Paul Blow. 32 - Aftermath of Disaster When fire or flood, wind or tremor strikes, what do you make of what’s been lost? How do you help others put their lives back together? Stories from the Wine ...


California Rushes In—Keeping Water Instream For Fisheries Without Federal Law, Paul Stanton Kibel Feb 2018

California Rushes In—Keeping Water Instream For Fisheries Without Federal Law, Paul Stanton Kibel

William & Mary Environmental Law and Policy Review

No abstract provided.


Pollinator Power: Supporting Bees Through Ecoregion Specific Planting Guides, Maya Thomas Jan 2018

Pollinator Power: Supporting Bees Through Ecoregion Specific Planting Guides, Maya Thomas

Scripps Senior Theses

The pollination of flowering crops by bees is an invaluable ecosystem service that supports biodiversity and much of the global agricultural system. Pollinators move pollen between the male structures of a plant to the female structures of a plant of the same species. This fertilizes the female plant, which then produces the next generation. This process also provides the pollinator with the nectar or pollen it needs to survive. While some plants transfer pollen through different means, the majority of plants need help from pollinators to reproduce. Depending on the means of pollination, pollination can be classified as abiotic or ...


Remediation Strategies For Mercury Contaminated Lakes And Reservoirs Within The State Of California, Emily Chortek Dec 2017

Remediation Strategies For Mercury Contaminated Lakes And Reservoirs Within The State Of California, Emily Chortek

Master's Projects and Capstones

Mercury is an environmental and public health concern due to its neurodegenerative effects and ubiquitous concentration within the environment. To mitigate these risks and reduce concentrations within the environment, remediation methods are necessary. The purpose of this paper is to investigate and evaluate the efficacy of a number of remediation options for mercury contaminated lakes and reservoirs in the State of California. This paper also identifies a number of challenges associated with the implementation of each method and provides recommendations for environmental managers to use when remediating mercury contaminated lakes. Hypolimnetic oxygenation (HOS) was found to be the least problematic ...


Protecting And Maintaining Silicon Valley’S Liquid Gold, Paul Mark Fulcher Dec 2017

Protecting And Maintaining Silicon Valley’S Liquid Gold, Paul Mark Fulcher

Master's Projects

Public sector leaders and decision makers in the California water industry have learned from previous severe drought conditions that to sustain water supplies during extremely dry seasons, there is a substantial need for behavioral changes associated with water conservation efforts among the businesses and residents of the community to maintain an adequate water supply. The intent of this study is to compare four California water agencies that have been designated as sustainable groundwater agencies (GSA), and determine what current programs and/or practices those agencies are using to meet the mandated requirements of the Sustainable Groundwater Management Act of 2014 ...


2017, October - Recommendations To Address The Expansion Of Seawater Intrusion In The Salinas Valley Groundwater Basin Oct 2017

2017, October - Recommendations To Address The Expansion Of Seawater Intrusion In The Salinas Valley Groundwater Basin

Monterey County Water Resources Agency Engineering Reports

This report provides a discussion of the current knowledge and related background information surrounding seawater intrusion pathways and potential impacts thereof on the Salinas Valley Groundwater Basin. The report also serves as a body of evidence to catalogue the findings used to support the six recommendations presented. Each recommendation can be implemented on its own or in concert with the others, and the relative importance of each is discussed individually in this report. However, the recommendations are conceptualized as a comprehensive solution that, along with continued operation of projects that have been constructed for the same purpose, have the strongest ...


The Diseños Project: A Geospatial Visualization Of The Environmental History Of California, 1769-1892, Rubén Mendoza Oct 2017

The Diseños Project: A Geospatial Visualization Of The Environmental History Of California, 1769-1892, Rubén Mendoza

Rubén Mendoza

No abstract provided.


Santa Clara Magazine, Volume 58 Number 4, Fall 2017, Santa Clara University Oct 2017

Santa Clara Magazine, Volume 58 Number 4, Fall 2017, Santa Clara University

Santa Clara Magazine

18 - Time for a Big Shift We work and save for decades. And then what? A behavioral finance expert writes about the tough transition many face. By Meir Statman. Illustrations by Hanna Barczyk. 22 - What We Owe At the very least: stories that capture the contour of a life. A Pulitzer Prize– winning reporter on tales of human strife and resilience. By Tatiana Sanchez ’10. 28 - The Most Important Lawsuit on the Planet It was first filed against the Obama administration and draws on decades of government records. It seeks no monetary damages. But advocates and critics alike agree that ...


2017, October - Recommendations To Address The Expansion Of Seawater Intrusion In The Salinas Valley Groundwater Basin Sep 2017

2017, October - Recommendations To Address The Expansion Of Seawater Intrusion In The Salinas Valley Groundwater Basin

Monterey County Water Resources Agency Water Reports

This report provides a discussion of the current knowledge and related background information surrounding seawater intrusion pathways and potential impacts thereof on the Salinas Valley Groundwater Basin. The report also serves as a body of evidence to catalogue the findings used to support the six recommendations presented. Each recommendation can be implemented on its own or in concert with the others, and the relative importance of each is discussed individually in this report. However, the recommendations are conceptualized as a comprehensive solution that, along with continued operation of projects that have been constructed for the same purpose, have the strongest ...


The Demographic Drivers Of California’S Environmental Voting, Lukas Yasuda Jul 2017

The Demographic Drivers Of California’S Environmental Voting, Lukas Yasuda

Journal of Environmental and Resource Economics at Colby

This study examines the demographics of California’s 53 congressional districts and the relationship with the voting patterns on three environmentally focused propositions in the 2008 and 2010 elections. Previous literature on the topic is mixed as some studies suggest that select attributes are found among environmental voting centers, yet other research describes the relationship as more complex than simple characteristics. Previous literature on the topic is mixed, with some studies suggesting that select attributes are found among environmental vote support hubs, whereas alternative research suggests the problem is more complex than simple characteristics. I collected data on income, education ...


Santa Clara Magazine, Volume 58 Number 2, Summer 2017, Santa Clara University Jul 2017

Santa Clara Magazine, Volume 58 Number 2, Summer 2017, Santa Clara University

Santa Clara Magazine

18 - Listening is Her Superpower The groundbreaking stage work of Anna Deavere Smith. By Jesse Hamlin. 22 - Casts a Shadow Travel bans: Four international graduate students respond. By Matt Morgan. 24 - A Bigger Stage Priest, social worker, CEO, and teller of stories: Jim Purcell on what drew him to Santa Clara—and what Jesuit education can be. By Steven Boyd Saum. 28 - The Good, the Bad, and the Kid Ron Hansen M.A. ’95 talks truth and fiction and Billy the Kid—and when you can’t tell the good guys from the bad guys. 38 - Discover. Innovate. A $30 ...


Facies Architecture And Provenance Of A Boulder-Conglomerate Submarine Channel System, Panoche Formation, Great Valley Group: A Forearc Basin Response To Middle Cretaceous Tectonism In The California Convergent Margin, Todd J. Greene, Kathleen D. Surpless Jun 2017

Facies Architecture And Provenance Of A Boulder-Conglomerate Submarine Channel System, Panoche Formation, Great Valley Group: A Forearc Basin Response To Middle Cretaceous Tectonism In The California Convergent Margin, Todd J. Greene, Kathleen D. Surpless

Geosciences Faculty Research

Tectonic reorganization induced by a rapid increase in plate motion ­obliquity and rate beginning at ca. 100 Ma affected California’s Andean-style convergent margin, with concomitant changes in the accretionary prism of the Franciscan Complex, the Great Valley forearc basin, and the Sierran continental arc. Using facies analysis and a combined provenance approach, we suggest that this ca. 100 Ma tectonic signal is preserved in a Cenomanian (Upper Cretaceous) boulder-conglomerate outcrop along the San Luis Reservoir (SLR) in the southern Great Valley, which represents the thickest and coarsest deep-water deposit ever described in the Great Valley Group (GVG). We document ...


Examining The Effects Of Policy Interventions On Increasing Electric Vehicle Adoption In California, Ethan G. Mcdermott May 2017

Examining The Effects Of Policy Interventions On Increasing Electric Vehicle Adoption In California, Ethan G. Mcdermott

Master's Projects and Capstones

Any significant effort to reduce global emissions of greenhouse gasses must address the growing concern of the transportation sector’s inability to meaningfully reduce its emissions contribution. A major shift in the primary fuel used in the sector away from petroleum-based fuel to electricity is one potential way the sector can lower its emissions and transition into a sustainable future. However, a number of barriers face the electric vehicle market, including competing against an already mature vehicle market, battling consumer preferences, and overcoming technical challenges. This paper examines several policy proposals to combat these barriers and examines the impact similar ...


Spatiotemporal Analyses Of Recycled Water Production, Jana E. Archer May 2017

Spatiotemporal Analyses Of Recycled Water Production, Jana E. Archer

Electronic Theses and Dissertations

Increased demands on water supplies caused by population expansion, saltwater intrusion, and drought have led to water shortages which may be addressed by use of recycled water as recycled water products. Study I investigated recycled water production in Florida and California during 2009 to detect gaps in distribution and identify areas for expansion. Gaps were detected along the panhandle and Miami, Florida, as well as the northern and southwestern regions in California. Study II examined gaps in distribution, identified temporal change, and located areas for expansion for Florida in 2009 and 2015. Production increased in the northern and southern regions ...


Santa Clara Magazine, Volume 58 Number 1, Spring 2017, Santa Clara University Apr 2017

Santa Clara Magazine, Volume 58 Number 1, Spring 2017, Santa Clara University

Santa Clara Magazine

24 - Big Win for a Tiny House Turning heads and changing the housing game. By Matt Morgan. 28 - $100 Million Gift to Build John A. ’60 and Susan Sobrato make the largest gift in SCU history. Now see the Sobrato Campus for Discovery and Innovation that will take shape—and redefine the University. Illustration by Tavis Coburn. 36 - Cut & Paste Conservation We can alter wild species to save them. So should we? By Emma Marris. Illustrations by Jason Holley. 44 - Info Officer in Chief From his office overlooking the White House, Tony Scott J.D. ’92 set out to bring ...


Climate Change Adaptation For Southern California Groundwater Managers: A Case Study Of The Six Basins Aquifer, Frank Lyles Jan 2017

Climate Change Adaptation For Southern California Groundwater Managers: A Case Study Of The Six Basins Aquifer, Frank Lyles

Pomona Senior Theses

Groundwater has been very important to the economic development of Southern California, and will continue to be a crucial resource in the 21st century. However, Climate Change threatens to disrupt many of the physical and economic processes that control the flow of water in and out of aquifers. One groundwater manager, the Six Basins Watermaster in eastern Los Angeles and western San Bernardino Counties, has developed a long-term planning document called the Strategic Plan that mostly fails to address the implications of Climate Change, especially for local water supplies. This thesis presents an in-depth analysis of the Six Basin Watermaster ...


The Water-Electricity Nexus In California: Drought-Induced Risk To Thermal Electricity Generation, Timothy S. Hyles Jan 2017

The Water-Electricity Nexus In California: Drought-Induced Risk To Thermal Electricity Generation, Timothy S. Hyles

Theses and projects

Investigating the possibility that drought might limit the water supply needed for thermal electricity generation in California, power plant water consumption data was compared to urban and agricultural consumptive demands to identify areas where power plants might contribute to regional water stress. To identify areas where power plants might be impacted by water stress, regional power plant, urban, and agricultural water demands were also compared to the available water supply. A list of power plants that would contribute most to regional water scarcity (individually and in aggregate) was highlighted, based on the plant’s water consumption volume, water-intensity, and water ...


Ranching In Point Reyes National Seashore: Compromise And Coexistence, Fiona Pettigrew Jan 2017

Ranching In Point Reyes National Seashore: Compromise And Coexistence, Fiona Pettigrew

Undergraduate Honors Theses

This thesis discusses ranching in Point Reyes National Seashore as well as the social, economic, and environmental impacts that it has on the surrounding area. This project answered the question; “what is the purpose/goal of Point Reyes National Seashore, and how does agricultures fit into this purpose?” In order to understand this issue one must look at the historical context of the area and the National Park Service in general. This thesis explores the current issues in the Park and offered recommendations based on collected secondary research as well as responses from a survey released in the community. A ...


From Access To Excess: Agribusiness, Federal Water Programs, And The Historical Roots Of The California Water Crisis, Tracy Marie Neblina Dec 2016

From Access To Excess: Agribusiness, Federal Water Programs, And The Historical Roots Of The California Water Crisis, Tracy Marie Neblina

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this paper is to show the link between water use, land consolidation, agribusinesses, and the water crisis that California began to experience in 2011. In order to better understand the relationship between the growth of agribusiness in the state and the evolution of water policy, this paper explores the historical context of land policy, the growth of farming in the San Joaquin Valley, and the development of federally funded water projects in the Central Valley. Years of expanding farmland and use of surface and underground water with limited regulation played an important role in exacerbating California’s ...


Agenda: Winter, Wilderness & Climate: Threats & Solutions, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment, The Wilderness Society, Protect Our Winters Oct 2016

Agenda: Winter, Wilderness & Climate: Threats & Solutions, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment, The Wilderness Society, Protect Our Winters

Winter, Wilderness, and Climate--Threats and Solutions (October 12)

In partnership with the Getches-Wilkinson Center, join The Wilderness Society and Protect Our Winters for an interactive presentation about energy development and climate impacts on public lands.

This event was held on Wednesday, October 12, 2016, 5:30 - 7:30 p.m., in the University of Colorado Law School, Wolf Law Building, Wittemyer Courtroom.


Slides: Winter, Wilderness & Climate: Threats & Solutions, Jim Ramey, Lindsay Bourgoine Oct 2016

Slides: Winter, Wilderness & Climate: Threats & Solutions, Jim Ramey, Lindsay Bourgoine

Winter, Wilderness, and Climate--Threats and Solutions (October 12)

Presenters:

Jim Ramey, The Wilderness Society

Lindsay Bourgoine, Protect Our Winters

56 slides


The Eco-Epidemiology Of Pacific Coast Tick Fever In California, Kerry A. Padgett, Denise L. Bonilla, Marina E. Eremeeva, Carol A. Glaser, Robert S. Lane, Charsey Cole Porse, Martin B. Castro, Sharon L. Messenger, Alex Espinosa, Jill Hacker, Anne Kjemtrup, Bonnie Ryan, Jamesina J. Scott, Renjie Hu, Melissa Hardstone Yoshimizu, Gregory A. Dasch, Vicki Kramer Oct 2016

The Eco-Epidemiology Of Pacific Coast Tick Fever In California, Kerry A. Padgett, Denise L. Bonilla, Marina E. Eremeeva, Carol A. Glaser, Robert S. Lane, Charsey Cole Porse, Martin B. Castro, Sharon L. Messenger, Alex Espinosa, Jill Hacker, Anne Kjemtrup, Bonnie Ryan, Jamesina J. Scott, Renjie Hu, Melissa Hardstone Yoshimizu, Gregory A. Dasch, Vicki Kramer

Environmental Health Sciences Faculty Publications

Rickettsia philipii (type strain “Rickettsia 364D”), the etiologic agent of Pacific Coast tick fever (PCTF), is transmitted to people by the Pacific Coast tick, Dermacentor occidentalis. Following the first confirmed human case of PCTF in 2008, 13 additional human cases have been reported in California, more than half of which were pediatric cases. The most common features of PCTF are the presence of at least one necrotic lesion known as an eschar (100%), fever (85%), and headache (79%); four case-patients required hospitalization and four had multiple eschars. Findings presented here implicate the nymphal or larval stages of D. occidentalis as ...


1924, Soil Survey Of King City Area, California Sep 2016

1924, Soil Survey Of King City Area, California

State and Federal Documents Relating to Monterey and San Luis Obispo Counties

1924 report by E. J. Carpenter, A. E. Kocher and F. O. Youngs on the King City area of Monterey, California, including location and boundaries, climate, agriculture and the classes of soil.