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Articles 2881 - 2910 of 6907
Full-Text Articles in Physical Sciences and Mathematics
Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Covering April 5, 2011-July 4, 2011, Margaret N. Rees
Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Covering April 5, 2011-July 4, 2011, Margaret N. Rees
Anti-littering Programs
- Plans were set for a meeting of government, business and nonprofit stakeholders to explore how to enhance statewide collaboration on litter and dumping issues.
- The Hector’s Helpers program with the Clark County School District continued in various schools.
- Planning for the integration of the information sharing portal, volunteer litter monitoring and the GIS database was conducted.
- A total of 12 clean-up events were conducted this quarter.
Variable Renewable Energy In Modeling Climate Change Mitigation Scenarios, Falko Ueckerdt, Robert J. Brecha, Gunnar Luderer, Patrick Sullivan, Eva Schmid, Nico Bauer, Diana Böttger
Variable Renewable Energy In Modeling Climate Change Mitigation Scenarios, Falko Ueckerdt, Robert J. Brecha, Gunnar Luderer, Patrick Sullivan, Eva Schmid, Nico Bauer, Diana Böttger
Physics Faculty Publications
This paper addresses the issue of how to account for short‐term temporal variability of renewable energy sources and power demand in long‐term climate change mitigation scenarios in energy‐economic models. An approach that captures in a stylized way the major challenges to the integration of variable renewable energy sources into power systems has been developed. As a first application this approach has been introduced to REMIND‐D, a hybrid energy‐economy model of Germany. An approximation of the residual load duration curve is implemented. The approximating function endogenously changes depending on the penetration and mix of variable renewable power. The approach can thus …
Scwds Briefs: Volume 27, Number 2 (July 2011), Jeanenne Brewton, Michael J. Yabsley
Scwds Briefs: Volume 27, Number 2 (July 2011), Jeanenne Brewton, Michael J. Yabsley
Southeastern Cooperative Wildlife Disease Study: Publications
Guilty Deer Breeder Fined $1,500,000
EHDV-7 Research at SCWDS
Jack Crockford
Gary Doster Retires, Again
Time to Move On
Recent SCWDS Publications Available
Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Annual Progress Report, Period Covering July 1, 2010 - June 30, 2011, Margaret N. Rees
Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Annual Progress Report, Period Covering July 1, 2010 - June 30, 2011, Margaret N. Rees
Get Outdoors Nevada
- From July 1, 2010 to June 30, 2011 the Volgistics database has increased the number of records from 6,536 to a total of 8,460 records at the end of this period.
- Website activity this year averaged 1,110 hits per month, with an average of 2,347 pages viewed per month.
- The team attended 11 community outreach events resulting in 2,455 direct contacts and 393 new mailing list records.
- The Interagency Volunteer Program (IVP) completed a total of 71 volunteer events contributing a total of 17,784 volunteer hours.
- A total of 131 volunteers completed orientations and trainings with the IVP.
- A total …
Limnological Assistance For Lake Mead National Recreation Area: Quarterly Report, Period Ending June 30, 2011, Margaret N. Rees
Limnological Assistance For Lake Mead National Recreation Area: Quarterly Report, Period Ending June 30, 2011, Margaret N. Rees
Limnological Studies
Project 1
- Technical assistance with the implementation of the Interagency Monitoring Action Plan (I-MAP) for Quagga Mussels is ongoing. During this quarter, analysis was completed for 42 juvenile/adult samples and analyses of the remaining samples are underway.
- As of 7/07/11 all sample sets will have been collected for Veliger abundance and settlement at different depths of Lake Mead; sampling continues for Growth of adult quagga mussels within Las Vegas Wash/Las Vegas Bay.
- The Interagency Quagga Mussel Meeting was held on 05/17/11; the next meeting is scheduled for 08/25/11.
Project 2
- Appendix 7, an addition to the Long-term Limnological and Aquatic …
Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering April 1, 2011-June 30, 2011, Margaret N. Rees
Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering April 1, 2011-June 30, 2011, Margaret N. Rees
Get Outdoors Nevada
- The number of records in the volunteer database increased by 12.2% over the last quarter. The database now contains 8,460 records.
- The number of site visits decreased by 12.3 % over the last quarter. Results show an average of 1,188 visits per month.
- The number of page views increased 26.4% over last month. Results show an average of 2,632 pages viewed per month.
- The IVP standard operations manual is under final review.
- Get Outdoors Nevada supported twenty-one volunteer events in a variety of ways. These events utilized 1,112 volunteers whom contributed 4,599 combined hours of service.
- Volunteer Orientation Training Automation …
Virginia Institute Of Marine Science 2011 Greenhouse Gas Inventory Report, Green Team, Virginia Institute Of Marine Science, Justin Birchler, Matt Freedman, Cassie Glaspie, Katie May Laumann, Gar Secrist
Virginia Institute Of Marine Science 2011 Greenhouse Gas Inventory Report, Green Team, Virginia Institute Of Marine Science, Justin Birchler, Matt Freedman, Cassie Glaspie, Katie May Laumann, Gar Secrist
Reports
During the spring of 2011, members of the VIMS Green Team, with support from the College of William and Mary’s Committee on Sustainability, collected data on resource use at the VIMS Gloucester Point campus in order to monitor our greenhouse gas emissions and develop methods for reducing our carbon footprint in the future. We processed these data using the Campus Carbon Calculator, a tool developed by Clean Air Cool Planet, a nonprofit organization. This program, used by over 1,200 colleges and universities, calculates the total greenhouse gas emissions of a campus using emissions factors developed by the Intergovernmental Panel on …
Logistic Curves, Extraction Costs And The Effective Size Of Oil Resources, Robert J. Brecha
Logistic Curves, Extraction Costs And The Effective Size Of Oil Resources, Robert J. Brecha
Physics Faculty Publications
The size of potential fossil fuel resources is an issue of perennial interest and controversy. Fundamentally, there appears to be a conflict in interpretation of available data for both past and future extraction histories. As fossil-fuel prices rose dramatically over the past several years, the question of resources once again became acute. In this paper we concentrate on conventional and non-conventional oil resources and make four main points, with the overarching theme that one can determine an effective oil resource that represents significantly less availability for consumption than usually posited by tallying resources in place.
First, looking at oil production …
Slides: Introduction To Large-Scale Planning And The Intermountain Bmp Project, Kathryn Mutz
Slides: Introduction To Large-Scale Planning And The Intermountain Bmp Project, Kathryn Mutz
Best Management Practices (BMPs): What? How? And Why? (May 26)
Presenter: Kathryn Mutz, Natural Resources Law Center, University of Colorado School of Law
18 slides
Agenda: Best Management Practices (Bmps): What? How? And Why?, Houston Advanced Research Center. Environmentally Friendly Drilling Systems Program, Research Partnership To Secure Energy For America, University Of Colorado Boulder. Natural Resources Law Center. Intermountain Oil And Gas Bmp Project
Agenda: Best Management Practices (Bmps): What? How? And Why?, Houston Advanced Research Center. Environmentally Friendly Drilling Systems Program, Research Partnership To Secure Energy For America, University Of Colorado Boulder. Natural Resources Law Center. Intermountain Oil And Gas Bmp Project
Best Management Practices (BMPs): What? How? And Why? (May 26)
The Environmentally Friendly Drilling Systems (EFD) Program, managed by the Houston Advanced Research Center, works to identify, develop and transfer critical, cost effective, new technologies that can provide policy makers and industry with the ability to develop natural gas reserves in a safe and environmentally friendly manner. Funding for the EFD Program is through a grant from the Research Partnership to Secure Energy for America, established under the 2005 Energy Act. Within the EFD Program, some projects focus on technologies for developing energy sources in environmentally sensitive areas; others (like the NRLC’s BMP Project) seek ways to reduce the environmental …
Slides: The Costs And Benefits Of Best Management Practices: Insights From The Marcellus Shale, Timothy J. Considine
Slides: The Costs And Benefits Of Best Management Practices: Insights From The Marcellus Shale, Timothy J. Considine
Best Management Practices (BMPs): What? How? And Why? (May 26)
Presenter: Timothy J. Considine, School of Energy Resources, Department of Economics and Finance, University of Wyoming
15 slides
Slides: Bmps For Reclamation: Do We Know What Is Effective?, Peter Stahl
Slides: Bmps For Reclamation: Do We Know What Is Effective?, Peter Stahl
Best Management Practices (BMPs): What? How? And Why? (May 26)
Presenter: Pete Stahl, Wyoming Reclamation and Restoration Center
19 slides
Slides: The Economic Benefits Of Completing Initial Reclamation Successfully For Oil And Gas, David Chenoweth, David Holland, Gerald Jacob, Lindsey Kruckenberg, John Rizza, Bryan Whiteley
Slides: The Economic Benefits Of Completing Initial Reclamation Successfully For Oil And Gas, David Chenoweth, David Holland, Gerald Jacob, Lindsey Kruckenberg, John Rizza, Bryan Whiteley
Best Management Practices (BMPs): What? How? And Why? (May 26)
Presenters: Joe Schneider and Colby Reid, Western States Reclamation, Inc.
34 slides
Slides: Planning Tools: Wildlife Mitigation Plan (Wmp), Comprehensive Drilling Plan (Cdp), Geographic Area Plan (Gap), Ginny Brannon
Slides: Planning Tools: Wildlife Mitigation Plan (Wmp), Comprehensive Drilling Plan (Cdp), Geographic Area Plan (Gap), Ginny Brannon
Best Management Practices (BMPs): What? How? And Why? (May 26)
Presenter: Ginny Brannon, Colorado Department of Natural Resources
7 slides
Slides: Master Development Plans (Mdps) / Geographic Area Plans (Gaps): Comprehensive Planning Tools For Oil And Gas Projects, Allen B. Crockett
Slides: Master Development Plans (Mdps) / Geographic Area Plans (Gaps): Comprehensive Planning Tools For Oil And Gas Projects, Allen B. Crockett
Best Management Practices (BMPs): What? How? And Why? (May 26)
Presenter: Mary Bloomstran, Edge Environmental
20 slides
Slides: Environmentally Friendly Drilling Systems Program, Rich Haut
Slides: Environmentally Friendly Drilling Systems Program, Rich Haut
Best Management Practices (BMPs): What? How? And Why? (May 26)
Presenter: Rich Haut, Houston Advanced Research Center
6 slides
Slides: Collaborative Planning And Lessons Learned, Matt Sura
Slides: Collaborative Planning And Lessons Learned, Matt Sura
Best Management Practices (BMPs): What? How? And Why? (May 26)
Presenter: Matt Sura, University of Colorado Law School
48 slides
Slides: Arctic Ecosystem Services Measurement And Modeling Project, Eric Biltonen
Slides: Arctic Ecosystem Services Measurement And Modeling Project, Eric Biltonen
Best Management Practices (BMPs): What? How? And Why? (May 26)
Presenter: Eric Biltonen, PhD, Environment Economist, Houston Advanced Research Center
8 slides
Slides: Master Development Plans (Mdps): Oil And Gas Projects, Mary Bloomstran
Slides: Master Development Plans (Mdps): Oil And Gas Projects, Mary Bloomstran
Best Management Practices (BMPs): What? How? And Why? (May 26)
Presenter: Mary Bloomstran, Edge Environmental
19 slides
The Green, Blue And Grey Water Footprint Of Crops And Derived Crop Products, Mesfin Mekonnen, Arjen Y. Hoekstra
The Green, Blue And Grey Water Footprint Of Crops And Derived Crop Products, Mesfin Mekonnen, Arjen Y. Hoekstra
Daugherty Water for Food Global Institute: Faculty Publications
Abstract. This study quantifies the green, blue and grey water footprint of global crop production in a spatially-explicit way for the period 1996–2005. The assessment improves upon earlier research by taking a high-resolution approach, estimating the water footprint of 126 crops at a 5 by 5 arc minute grid. We have used a grid-based dynamic water balance model to calculate crop water use over time, with a time step of one day. The model takes into account the daily soil water balance and climatic conditions for each grid cell. In addition, the water pollution associated with the use of nitrogen …
Wind Regimes In Complex Terrain Of The Great Valley Of Eastern Tennessee, Kevin Ray Birdwell
Wind Regimes In Complex Terrain Of The Great Valley Of Eastern Tennessee, Kevin Ray Birdwell
Doctoral Dissertations
This research was designed to provide an understanding of physical wind mechanisms within the complex terrain of the Great Valley of Eastern Tennessee to assess the impacts of regional air flow with regard to synoptic and mesoscale weather changes, wind direction shifts, and air quality. Meteorological data from 2008–2009 were analyzed from 13 meteorological sites along with associated upper level data. Up to 15 ancillary sites were used for reference. Two-step complete linkage and K-means cluster analyses, synoptic weather studies, and ambient meteorological comparisons were performed to generate hourly wind classifications. These wind regimes revealed seasonal variations of underlying physical …
National Water Footprint Accounts: The Green, Blue And Grey Water Footprint Of Production And Consumption. Volume 1: Main Report, Mesfin Mekonnen, Arjen Y. Hoekstra
National Water Footprint Accounts: The Green, Blue And Grey Water Footprint Of Production And Consumption. Volume 1: Main Report, Mesfin Mekonnen, Arjen Y. Hoekstra
Daugherty Water for Food Global Institute: Faculty Publications
This study quantifies and maps the water footprints of nations from both a production and consumption perspective and estimates international virtual water flows and national and global water savings as a result of trade. The entire estimate includes a breakdown of water footprints, virtual water flows and water savings into their green, blue and grey components. The main finding of the study can be summarized as:
The global water footprint in the period 1996-2005 was 9087 Gm3/yr (74% green, 11% blue, 15% grey). Agricultural production contributes 92% to this total footprint.
About one fifth of the global water footprint relates …
National Water Footprint Accounts: The Green, Blue And Grey Water Footprint Of Production And Consumption. Volume 2: Appendices, Mesfin Mekonnen, Arjen Y. Hoekstra
National Water Footprint Accounts: The Green, Blue And Grey Water Footprint Of Production And Consumption. Volume 2: Appendices, Mesfin Mekonnen, Arjen Y. Hoekstra
Daugherty Water for Food Global Institute: Faculty Publications
Contents
Appendix I. The water footprint of national production (Mm3/yr)
Appendix II. Virtual-water flows related to trade in crop, animal and industrial products, per country (Mm3/yr)
Appendix III. International virtual-water flows per product category (Mm3/yr)
Appendix IV. National water saving related to trade in agricultural and industrial products per country (Mm3/yr)
Appendix V. Global water saving related to trade in agricultural and industrial products, per product (Mm3/yr)
Appendix VI. The average water footprint per ton of commodity per country, weighted based on origin (WF* in m3/ton)
Appendix VII. …
Understanding Bioprospecting: Can Indigenous Populations Benefit From The Search For Pharmaceuticals In Areas Of High Biodiversity, Emily Schwindt
Understanding Bioprospecting: Can Indigenous Populations Benefit From The Search For Pharmaceuticals In Areas Of High Biodiversity, Emily Schwindt
Department of Environmental Studies: Undergraduate Student Theses
Bioprospecting is a controversial issue, and anthropologists and other scientists are quick to take sides. The idea of large corporations pumping money into conservation and development programs, while developing what could be the latest life-saving drug simply sounds too good to be true, and often times is. However, if all parties work together and proceed with caution, these benefits could become more than a fantasy. Looking at case studies from Costa Rica, India, South Africa and Panama this paper attempts to find patterns among successful bioprospecting agreements and note shortcomings and identify risks. This information will be used to suggest …
Ecotourism In Costa Rica: Environmental Impacts And Management, Emily Mckeone
Ecotourism In Costa Rica: Environmental Impacts And Management, Emily Mckeone
Department of Environmental Studies: Undergraduate Student Theses
Globally we are witnessing growing environmental destruction, particularly to the natural resource bases of underdeveloped countries. If ecotourism can generate profits for local economies, while protecting and conserving the natural resource base of that community, it could be a strong alternative for numerous countries. Evidence suggests that the ecotourism industry has been expanding at a rapid rate in recent decades (Dasenbrock 2002). It is important to understand the positive and negative ecological impacts of the industry as this rapid growth rate continues.
The main objective of this study is to highlight the strengths and weaknesses of the ecotourism industry in …
Spatial Patterns Of Drought Triggers And Indicators, Joseph P. Robine
Spatial Patterns Of Drought Triggers And Indicators, Joseph P. Robine
Department of Environmental Studies: Undergraduate Student Theses
Drought is a reoccurring phenomenon with widespread economic, social, and environmental impacts. Unlike other disasters, a drought cannot be easily detected. In addition, droughts are widespread and develop slowly over time making it difficult to detect its onset and monitor its severity and impacts. To assist in monitoring the severity and spatial extent of droughts, drought managers frequently use indicators and triggers. Drought indicators are meteorological or hydrological variables or indices that quantify or describe the level of drought severity. A drought trigger is a value of an indicator that initiates management and response actions. Despite the clear importance of …
Effectiveness Of Earthtec ® On Killing Invasive Quagga Mussels (Dreissena Rostriformis Bugenis) And Preventing Their Colonization In The Western U.S., Ashlie Watters
UNLV Theses, Dissertations, Professional Papers, and Capstones
Dreissena rostriformis bugensis, an invasive species, also known as the quagga mussel, was discovered in Lake Mead, NV in January of 2007. In the four years since detection, quagga mussels have created tremendous economical, ecological, and human health impacts. The mussels clog pipes, ruin boat motors, and damage recreational equipment, and once established in the lake, routine maintenance is necessary to avoid further damage. Because of quagga mussels' high fecundity, planktonic veliger stage, and ability to attach to substrates with byssal threads, they have easily and swiftly spread to other lakes and reservoirs in the Lower Colorado River Basin. …
Colonization And Decontamination Of Quagga Mussels In The Western United States: Monitoring Veligers In Lake Mead And Field Testing In The Effects Of Hot-Water Spray As A Means Of Watercraft Decontamination, Sean Robin Comeau
UNLV Theses, Dissertations, Professional Papers, and Capstones
The introduction and establishment of aquatic invasive species (AIS) is one of the top causes of global biodiversity loss and ecological change, and is also financially costly for taxpayers and agencies managing protected areas. This is especially true regarding the nationwide spread of dreissenid mussels to various bodies of freshwater. The discovery of invasive quagga mussels (Dreissena rostriformis bugensis) in Lake Mead on January 6, 2007 has changed the popular recreation area into a potential vector of the destructive AIS. This location could allow for an increased spread of these dressenid species to uninfested bodies of water in the western …
Super-Aggregations Of Krill And Humpback Whales In Wilhelmina Bay, Antarctic Peninsula, Douglas P. Nowacek, Ari S. Friedlaender, Patrick N. Halpin, Elliott L. Hazen, David W. Johnston, Andrew J. Read, Boris Espinasse, Meng Zhou, Yiwu Zhu
Super-Aggregations Of Krill And Humpback Whales In Wilhelmina Bay, Antarctic Peninsula, Douglas P. Nowacek, Ari S. Friedlaender, Patrick N. Halpin, Elliott L. Hazen, David W. Johnston, Andrew J. Read, Boris Espinasse, Meng Zhou, Yiwu Zhu
Environmental, Earth, and Ocean Sciences Faculty Publication Series
Ecological relationships of krill and whales have not been explored in the Western Antarctic Peninsula (WAP), and have only rarely been studied elsewhere in the Southern Ocean. In the austral autumn we observed an extremely high density (5.1 whales per km2) of humpback whales (Megaptera novaeangliae) feeding on a super-aggregation of Antarctic krill (Euphausia superba) in Wilhelmina Bay. The krill biomass was approximately 2 million tons, distributed over an area of 100 km2 at densities of up to 2000 individuals m−3; reports of such ‘super-aggregations’ of krill have been absent in …
Accumulation Of Polonium-210 In Different Species Of Fish In Lake Mead, Suraj Ghevarghese John, Shungmugam Nallaperumal, Vernon Hodge
Accumulation Of Polonium-210 In Different Species Of Fish In Lake Mead, Suraj Ghevarghese John, Shungmugam Nallaperumal, Vernon Hodge
Festival of Communities: UG Symposium (Posters)
Discovered by Pierre Curie and Marie Skłodowska-Curie in 1898, polonium is a chemical element with an atomic number of 84. This rare naturally occurring radioactive element is chemically similar to bismuth and tellurium, and forms in uranium ores. Polonium-210 is an naturally occurring radioactive element with a half-life of 138.376 days(1). This element is found in trace amounts in most organisms. Our research is focused on the accumulation of polonium-210 in fish that occupy in Lake Mead.
The sample species is chosen based on varying lake stratification (layers of the lake). This gives us a good idea of the difference …