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Articles 211 - 240 of 477

Full-Text Articles in Hydraulic Engineering

Tackling Change: Future-Proofing Water, Agriculture, And Food Security In An Era Of Climate Uncertainty, Peter G. Mccornick, Vladimir Smakhtin, Luna Bharati, Robyn Johnston, Matthew Mccartney, Fraser Sugden, Floriane Clement, Beverly Mcintyre Jan 2013

Tackling Change: Future-Proofing Water, Agriculture, And Food Security In An Era Of Climate Uncertainty, Peter G. Mccornick, Vladimir Smakhtin, Luna Bharati, Robyn Johnston, Matthew Mccartney, Fraser Sugden, Floriane Clement, Beverly Mcintyre

Daugherty Water for Food Global Institute: Faculty Publications

In 1950 the global population was just over 2.5 billion. Now, in 2013, it is around 7 billion. Although population growth is slowing, the world is projected to have around 9.6 billion inhabitants by 2050. Most of the population increase will be in developing countries where food is often scarce, and land and water are under pressure. To feed the global population in 2050 the world will have to produce more food without significantly expanding the area of cultivated land and, because of competition between a greater number of water users, with less freshwater. On top of land and water …


Occurrence Of Antimicrobials And Antimicrobial Resistance Genes In Beef Cattle Storage Ponds And Swine Treatment Lagoons, Yuping Zhang, Chiqian Zhang, David B. Parker, Daniel D. Snow, Zhi Zhou, Xu Li Jan 2013

Occurrence Of Antimicrobials And Antimicrobial Resistance Genes In Beef Cattle Storage Ponds And Swine Treatment Lagoons, Yuping Zhang, Chiqian Zhang, David B. Parker, Daniel D. Snow, Zhi Zhou, Xu Li

Nebraska Water Center: Faculty Publications

Livestock manure treatment and storage structures are potential environmental sources of antimicrobials and antimicrobial resistance genes (ARGs). In this study, the occurrence of antimicrobials and ARGs was investigated in the water and the sludge compartments of beef cattle storage ponds and swine lagoons. Analysis was focused on two families of antimicrobials (sulfonamide and tetracycline) and the corresponding ARGs (sul1, sul2, tetO, tetQ and tetX). Results showed that the pseudo-partitioning coefficients of tetracyclines were higher than those of sulfonamides, suggesting different distributions of these two classes of antimicrobials between water and sludge. The ARGs tested were …


2013 Nebraska Groundwater Quality Monitoring Report Jan 2013

2013 Nebraska Groundwater Quality Monitoring Report

Nebraska Department of Environmental Quality: Reports

The 2001 Nebraska Legislature passed LB329 (Neb. Rev. Stat. §46-1304) which, in part, directed the Nebraska Department of Environmental Quality (NDEQ) to report on groundwater quality monitoring in Nebraska. Reports have been issued annually since December 2001. The text of the statute applicable to this report follows: “The Department of Environmental Quality shall prepare a report outlining the extent of ground water quality monitoring conducted by natural resources districts during the preceding calendar year. The department shall analyze the data collected for the purpose of determining whether or not ground water quality is degrading or improving and shall present the …


Using Gis To Delineate Headwater Stream Origins In The Appalachian Coal-Belt Region Of Kentucky, Jonathan A. Villines Jan 2013

Using Gis To Delineate Headwater Stream Origins In The Appalachian Coal-Belt Region Of Kentucky, Jonathan A. Villines

Theses and Dissertations--Biosystems and Agricultural Engineering

Human activity such as surface mining can have substantial impacts on the natural environment. Performing a Cumulative Hydrologic Impact Assessment (CHIA) of such impacts on surface water systems requires knowing the location and extent of these impacted streams. The Jurisdictional Determination (JD) of a stream’s protected status under the Clean Water Act (CWA) involves locating and classifying streams according to their flow regime: ephemeral, intermittent, or perennial. Due to their often remote locations and small size, taking a field inventory of headwater streams for surface mining permit applications or permit reviews is challenging. A means of estimating headwater stream location …


Slides: What Went Wrong At Divide Creek?, Matthew Sura Nov 2012

Slides: What Went Wrong At Divide Creek?, Matthew Sura

Monitoring and Protecting Groundwater During Oil and Gas Development (November 26)

Presenter: Attorney Matthew Sura, Former Director of Western Colorado Congress, graduate of University of Colorado Law School; attorney specializing in representation of landowners and mineral owners in oil and gas transactions and disputes

17 slides


Agenda: Monitoring And Protecting Groundwater During Oil And Gas Development, University Of Colorado Boulder. Natural Resources Law Center. Intermountain Oil And Gas Bmp Project, Colorado Water And Energy Research Center Nov 2012

Agenda: Monitoring And Protecting Groundwater During Oil And Gas Development, University Of Colorado Boulder. Natural Resources Law Center. Intermountain Oil And Gas Bmp Project, Colorado Water And Energy Research Center

Monitoring and Protecting Groundwater During Oil and Gas Development (November 26)

This workshop is cosponsored by the Intermountain Oil and Gas BMP Project and the Colorado Water and Energy Research Center, with financial support from the Environmentally Friendly Drilling Project and the CU-Boulder Outreach Committee.

The Colorado Oil and Gas Conservation Commission (COGCC) recently initiated a rule making process to develop new, statewide regulations for baseline sampling and monitoring of groundwater near new oil and gas wells. COGCC’s first rule making hearing was held November 14; the rule is expected to be finalized December 10. This workshop will discuss oil and gas development procedures that can impact groundwater, the current rules …


Slides: Survey Of State Sampling And Monitoring Rules, Kathryn Mutz, Josh Kruger Nov 2012

Slides: Survey Of State Sampling And Monitoring Rules, Kathryn Mutz, Josh Kruger

Monitoring and Protecting Groundwater During Oil and Gas Development (November 26)

Presenters: Kathryn Mutz and Josh Kruger, Natural Resources Law Center, University of Colorado Law School

7 slides


Slides: Routes To Sustainability: Natural Gas Development And Air And Water Resources In The Rocky Mountain Region, Mark Williams Nov 2012

Slides: Routes To Sustainability: Natural Gas Development And Air And Water Resources In The Rocky Mountain Region, Mark Williams

Monitoring and Protecting Groundwater During Oil and Gas Development (November 26)

Presenter: Mark Williams, University of Colorado Boulder

14 slides


Slides: Colorado Law: Protecting Water Quantity And Quality, Alan E. Curtis Nov 2012

Slides: Colorado Law: Protecting Water Quantity And Quality, Alan E. Curtis

Monitoring and Protecting Groundwater During Oil and Gas Development (November 26)

Presenter: Alan E. Curtis, White & Jankowski, LLP

23 slides


Further Information: Monitoring And Protecting Groundwater During Oil And Gas Development, University Of Colorado Boulder. Natural Resources Law Center. Intermountain Oil And Gas Bmp Project, Colorado Water And Energy Research Center Nov 2012

Further Information: Monitoring And Protecting Groundwater During Oil And Gas Development, University Of Colorado Boulder. Natural Resources Law Center. Intermountain Oil And Gas Bmp Project, Colorado Water And Energy Research Center

Monitoring and Protecting Groundwater During Oil and Gas Development (November 26)

1 page.

"For Further Information" (URLs):

COGCC

Rules and Proposed Rules from Other Jurisdictions

Sampling Protocols

Impacts


Slides: Overview Of Colorado Aquifer Systems, Christopher J. Sanchez Nov 2012

Slides: Overview Of Colorado Aquifer Systems, Christopher J. Sanchez

Monitoring and Protecting Groundwater During Oil and Gas Development (November 26)

Presenter: Christopher J. Sanchez, P.G., BBA Water Consultants, Bishop-Brogden Associates, Inc.

28 slides


Slides: The Role Of Groundwater Sampling/Monitoring: Cogcc Proposed Rule 609, Gene Florentino Nov 2012

Slides: The Role Of Groundwater Sampling/Monitoring: Cogcc Proposed Rule 609, Gene Florentino

Monitoring and Protecting Groundwater During Oil and Gas Development (November 26)

Presenter: Gene Florentino, PG, Walsh Environmental Scientists and Engineers

14 slides


Slides: Colorado’S Groundwater Protection Program, Andrew Ross Nov 2012

Slides: Colorado’S Groundwater Protection Program, Andrew Ross

Monitoring and Protecting Groundwater During Oil and Gas Development (November 26)

Presenter: Andrew Ross, Colorado Department of Public Health and Environment

22 slides


Slides: Research On Ground Water Monitoring, Matt Samelson Nov 2012

Slides: Research On Ground Water Monitoring, Matt Samelson

Monitoring and Protecting Groundwater During Oil and Gas Development (November 26)

Presenter: Matt Samelson, Natural Resources Law Center and the Donnell-Kay Foundation

12 slides


Slides: Proposed Statewide Baseline Groundwater Sampling And Monitoring Rules, University Of Colorado Boulder. Natural Resources Law Center, Colorado. Oil And Gas Conservation Commission Nov 2012

Slides: Proposed Statewide Baseline Groundwater Sampling And Monitoring Rules, University Of Colorado Boulder. Natural Resources Law Center, Colorado. Oil And Gas Conservation Commission

Monitoring and Protecting Groundwater During Oil and Gas Development (November 26)

Presenter: Kathryn Mutz, Natural Resources Law Center, University of Colorado Law School

16 slides


The Nebraska Water Leaders Academy: Blending Water Policy And Science With Leadership Theory, Mark E. Burbach, Connie I. Reimers-Hild Nov 2012

The Nebraska Water Leaders Academy: Blending Water Policy And Science With Leadership Theory, Mark E. Burbach, Connie I. Reimers-Hild

Nebraska Water Leaders Academy: Publications and Materials

Water Challenges are Growing
Population Continues to Grow
New and Innovative Leadership is Needed
Nebraska Water Leaders Academy (NWLA) was born!

NWLA Objectives
•Develop scientific, social and political knowledge about water and related natural resources
• Examine the economical and beneficial uses of Nebraska’s water resources
• Develop and enhance leadership and critical thinking skills
• Develop interpersonal skills to become actively involved with water policy issues at the local, regional, state, and national levels
• Develop life-long water resources management skills
• Challenge traditional paradigms while encouraging critical thinking and creative solutions.


Magnitude And Frequency Of Floods For Rural, Unregulated Streams Of Tennessee By L-Moments Method, Hongxiang Yan Aug 2012

Magnitude And Frequency Of Floods For Rural, Unregulated Streams Of Tennessee By L-Moments Method, Hongxiang Yan

Graduate Theses and Dissertations

This study presents a regional frequency analysis of Tennessee using the well-known Bulletin-17B method standardly used in the United States and the relatively new and developing L-Moments methods. Flood frequency characteristics were defined for 416 gaging stations located primarily in rural and lightly developed areas of Tennessee. All the gaging stations have 10 or more years of record through 2006. Using the L-Moments method, the generalized extreme value distribution was identified as the most robust distribution for each of four hydrologic areas. Multiple regression equations were also calculated for estimating the flood frequency of ungaged, unregulated, rural streams in each …


Global Monthly Water Scarcity: Blue Water Footprints Versus Blue Water Availability, Arjen Y. Hoekstra, Mesfin Mekonnen, Ashok K. Chapagain, Ruth E. Mathews, Brian D. Richter Feb 2012

Global Monthly Water Scarcity: Blue Water Footprints Versus Blue Water Availability, Arjen Y. Hoekstra, Mesfin Mekonnen, Ashok K. Chapagain, Ruth E. Mathews, Brian D. Richter

Daugherty Water for Food Global Institute: Faculty Publications

Freshwater scarcity is a growing concern, placing considerable importance on the accuracy of indicators used to characterize and map water scarcity worldwide. We improve upon past efforts by using estimates of blue water footprints (consumptive use of ground- and surface water flows) rather than water withdrawals, accounting for the flows needed to sustain critical ecological functions and by considering monthly rather than annual values. We analyzed 405 river basins for the period 1996–2005. In 201 basins with 2.67 billion inhabitants there was severe water scarcity during at least one month of the year. The ecological and economic consequences of increasing …


The Water Footprint Of Humanity, Arjen Y. Hoekstra, Mesfin Mekonnen Feb 2012

The Water Footprint Of Humanity, Arjen Y. Hoekstra, Mesfin Mekonnen

Daugherty Water for Food Global Institute: Faculty Publications

This study quantifies and maps the water footprint (WF) of humanity at a high spatial resolution. It reports on consumptive use of rainwater (green WF) and ground and surface water (blue WF) and volumes of water polluted (gray WF). Water footprints are estimated per nation from both a production and consumption perspective. International virtual water flows are estimated based on trade in agricultural and industrial commodities. The global annual average WF in the period 1996–2005 was 9,087 Gm3 ∕y (74% green, 11% blue, 15% gray). Agricultural production contributes 92%. About one-fifth of the global WF relates to production for export. …


A Global Assessment Of The Water Footprint Of Farm Animal Products, Mesfin Mekonnen, Arjen Y. Hoekstra Jan 2012

A Global Assessment Of The Water Footprint Of Farm Animal Products, Mesfin Mekonnen, Arjen Y. Hoekstra

Daugherty Water for Food Global Institute: Faculty Publications

The increase in the consumption of animal products is likely to put further pressure on the world’s freshwater resources. This paper provides a comprehensive account of the water footprint of animal products, considering different production systems and feed composition per animal type and country. Nearly one-third of the total water footprint of agriculture in the world is related to the production of animal products. The water footprint of any animal product is larger than the water footprint of crop products with equivalent nutritional value. The average water footprint per calorie for beef is 20 times larger than for cereals and …


Groundwater Quality And Its Health Impact: An Assessment Of Dental Fluorosis In Rural Inhabitants Of The Main Ethiopian Rift, Tewodros Rango, Julia Kravchenko, Behailu Atlaw, Peter G. Mccornick, Marc Jeuland, Brittany Merola, Avner Vengosh Jan 2012

Groundwater Quality And Its Health Impact: An Assessment Of Dental Fluorosis In Rural Inhabitants Of The Main Ethiopian Rift, Tewodros Rango, Julia Kravchenko, Behailu Atlaw, Peter G. Mccornick, Marc Jeuland, Brittany Merola, Avner Vengosh

Daugherty Water for Food Global Institute: Faculty Publications

This study aims to assess the link between fluoride content in groundwater and its impact on dental health in rural communities of the Ethiopian Rift. A total of 148 water samples were collected from two drainage basins within the Main Ethiopian Rift (MER). In the Ziway-Shala basin in particular, wells had high fluoride levels (mean: 9.4 ± 10.5 mg/L; range: 1.1 to 68 mg/L), with 48 of 50 exceeding the WHO drinking water guideline limit of 1.5 mg/L. Total average daily intake of fluoride from drinking groundwater (calculated per weight unit) was also found to be six times higher than …


Relações Entre As Doenças Respiratórias E A Poluição Atmosférica E Variáveis Climáticas Na Cidade De Curitiba, Paraná, Brasil, Paulo R.B. Guimarães, Ricardo Berger, Fernando Lucambio Perez, Paulo Dt Dl Pires Jan 2012

Relações Entre As Doenças Respiratórias E A Poluição Atmosférica E Variáveis Climáticas Na Cidade De Curitiba, Paraná, Brasil, Paulo R.B. Guimarães, Ricardo Berger, Fernando Lucambio Perez, Paulo Dt Dl Pires

Daugherty Water for Food Global Institute: Faculty Publications

Neste estudo, foram observados níveis de concentrações de poluentes atmosféricos da cidade de Curitiba, no período de novembro de 2003 a junho de 2008, da estação automática de monitoramento da praça Ouvidor Pardinho. O objetivo foi desenvolver uma metodologia de modelagem estatística que explique o número de notificações de doenças respiratórias registradas em idosos (acima de 60 anos) e crianças (abaixo de 5 anos). Além das concentrações de poluentes, algumas variáveis climáticas foram analisadas. Após estudo de diversas metodologias estatísticas, considerou-se mais adequado o ajuste de Modelos Aditivos Generalizados para Locação, Escala e Forma. Os modelos ajustados apresentaram resultados satisfatórios …


As Unidades De Conservação E A Floresta Ombrófila Mista No Estado Do Paraná, Paulo Dt Dl Pires, Douglas Magnus Zeni Jr, Debora Gaulke Jan 2012

As Unidades De Conservação E A Floresta Ombrófila Mista No Estado Do Paraná, Paulo Dt Dl Pires, Douglas Magnus Zeni Jr, Debora Gaulke

Daugherty Water for Food Global Institute: Faculty Publications

O intenso processo de ocupação territorial, uso desordenado dos recursos naturais e destruição de áreas verdes iniciadas no século XIX, são os principais motivos da intensa devastação das Florestas com Araucárias. Como meio de efetivação da proteção e desenvolvimento florestal, o Brasil adotou em sua política ambiental a criação do Sistema de Unidades de Conservação nas categorias, de proteção integral e uso sustentável. Uma alternativa viável é a regulação dos estoques de madeira no Estado por meio de Unidade de Conservação de Uso Sustentável. O que se pretende a partir deste ponto é analisar a possibilidade da criação de regulamentação …


2012 Nebraska Groundwater Quality Monitoring Report Jan 2012

2012 Nebraska Groundwater Quality Monitoring Report

Nebraska Department of Environmental Quality: Reports

The 2001 Nebraska Legislature passed LB329 (Neb. Rev. Stat. §46-1304) which, in part, directed the Nebraska Department of Environmental Quality (NDEQ) to report on groundwater quality monitoring in Nebraska. Reports have been issued annually since December 2001. The text of the statute applicable to this report follows: “The Department of Environmental Quality shall prepare a report outlining the extent of ground water quality monitoring conducted by natural resources districts during the preceding calendar year. The department shall analyze the data collected for the purpose of determining whether or not ground water quality is degrading or improving and shall present the …


2012 Nebraska Water Monitoring Programs Report, Marty Link, Mike Archer Jan 2012

2012 Nebraska Water Monitoring Programs Report, Marty Link, Mike Archer

Nebraska Department of Environmental Quality: Reports

The following Nebraska Department of Environmental Quality staff have contributed to this report with their photos, maps, numbers, words, and editing. Their efforts are greatly appreciated and gratefully acknowledged here: Mike Archer, Ken Bazata, Dave Bubb, Ryan Chapman, Jason Garber, Patrick Hartman, Tom Heatherly, Dave Ihrie, Dan Inman, Greg Michl, Will Myers, Patrick O’Brien (NARD), Brad Routt, and Dave Schumacher.


Hydroclimatic Forecasting In The Western United States Using Paleoclimate Reconstructions And Data-Driven Models, Christopher Allen Carrier Dec 2011

Hydroclimatic Forecasting In The Western United States Using Paleoclimate Reconstructions And Data-Driven Models, Christopher Allen Carrier

UNLV Theses, Dissertations, Professional Papers, and Capstones

This thesis investigated climate variability and their associated hydrologic responses in the western United States. The western United States faces the problem of water scarcity, where the management and mitigation of available water supplies are further complicated by climate variability. Climate variability associated with the phases of oceanic-atmospheric oscillations has been shown to influence streamflow and precipitation, where predictive relationships have led to the possibility of producing long-range forecasts. Based on literature review, four oceanic-atmospheric oscillation indices were identified in having the most prominent influence over the western United States including the El Niño - Southern Oscillation (ENSO), Pacific Decadal …


Slides: The Costs And Benefits Of Best Management Practices: Insights From The Marcellus Shale, Timothy J. Considine May 2011

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: Collaborative Planning And Lessons Learned, Matt Sura May 2011

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


The Green, Blue And Grey Water Footprint Of Crops And Derived Crop Products, Mesfin Mekonnen, Arjen Y. Hoekstra May 2011

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 …


National Water Footprint Accounts: The Green, Blue And Grey Water Footprint Of Production And Consumption. Volume 1: Main Report, Mesfin Mekonnen, Arjen Y. Hoekstra May 2011

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 …