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Articles 1381 - 1410 of 1779
Full-Text Articles in Environmental Monitoring
A New Process For Organizing Assessments Of Social, Economic, And Environmental Outcomes: Case Study Of Wildland Fire Management In The Usa, Randall Jf Bruins, Wayne R. Munns Jr., Stephen J. Botti, Steve Brink, David Cleland, Larry Kapustka, Danny Lee, Valerie Luzadis, Laura Falk Mccarthy, Naureen Rana, Douglas B. Rideout, Matt Rollins, Peter Woodbury, Mike Zupko
A New Process For Organizing Assessments Of Social, Economic, And Environmental Outcomes: Case Study Of Wildland Fire Management In The Usa, Randall Jf Bruins, Wayne R. Munns Jr., Stephen J. Botti, Steve Brink, David Cleland, Larry Kapustka, Danny Lee, Valerie Luzadis, Laura Falk Mccarthy, Naureen Rana, Douglas B. Rideout, Matt Rollins, Peter Woodbury, Mike Zupko
United States Environmental Protection Agency: Publications
Ecological risk assessments typically are organized using the processes of planning (a discussion among managers, stakeholders, and analysts to clarify ecosystem management goals and assessment scope) and problem formulation (evaluation of existing information to generate hypotheses about adverse ecological effects, select assessment endpoints, and develop an analysis plan). These processes require modification to be applicable for integrated assessments that evaluate ecosystem management alternatives in terms of their ecological, economic, and social consequences.We present 8 questions that define the steps of a new process we term integrated problem formulation (IPF), and we illustrate the use of IPF through a retrospective case …
Using Conservative And Biological Tracers To Better Understand The Transport Of Agricultural Contaminants From Soil Water Through The Epikarstic Zone, Brian Ham
Masters Theses & Specialist Projects
Agriculture contamination is very common in karst systems due to the vulnerability of these aquifers. Animal waste is often spread across crop land to enrich the soil with nitrates and phosphates. Herbicides and pesticides are also applied to the crops. The transport of these pollutants through the soil and epikarst is a difficult process to monitor due to the complex, heterogeneous behavior of the groundwater as it makes its way down to the aquifer below.
An experimental site at Crumps Cave lended a unique opportunity to monitor the vadose zone at a waterfall in the cave below. A previous dye …
Agenda: Best Practices For Community And Environmental Protection, University Of Colorado Boulder. Natural Resources Law Center. Intermountain Oil And Gas Bmp Project, Colorado. Oil And Gas Conservation Commission
Agenda: Best Practices For Community And Environmental Protection, University Of Colorado Boulder. Natural Resources Law Center. Intermountain Oil And Gas Bmp Project, Colorado. Oil And Gas Conservation Commission
Best Practices for Community and Environmental Protection (October 14)
The first Intermountain BMP Project workshop, sponsored by the Natural Resources Law Center and the Colorado Oil and Gas Conservation Commission, was held in Rifle, Colorado on October 14, 2009 at the Garfield County Fairground for over 170 participants.
Speakers from Federal, state and local governments, the community, industry and environmental consultants, and conservation groups focused presentations and discussion on a greater understanding of what Best Management Practices (BMPs) are appropriate to the western slope of Colorado and how they are integrated into developments.
Slides: Best Management Practices: Planning, Leasing, Permitting, Jamie Connell
Slides: Best Management Practices: Planning, Leasing, Permitting, Jamie Connell
Best Practices for Community and Environmental Protection (October 14)
Presenter: Jamie Connell, Northwest Colorado District Manager, U.S. Bureau of Land Management (BLM) Colorado
23 slides
Slides: Disappearing Roads--An Efd Project: An Exploration Into Low Impact And Efficient Gas Field Drilling, Charles Dolan
Slides: Disappearing Roads--An Efd Project: An Exploration Into Low Impact And Efficient Gas Field Drilling, Charles Dolan
Best Practices for Community and Environmental Protection (October 14)
Presenter: Rich Haut, Houston Advanced Research Center (HARC), for Dr. Charles Dolan, University of Wyoming, Environmentally Friendly Drilling Program
25 slides
Slides: Energy By Design: Possible Bmp For Mitigation Planning, Dave Gann
Slides: Energy By Design: Possible Bmp For Mitigation Planning, Dave Gann
Best Practices for Community and Environmental Protection (October 14)
Presenter: Dave Gann, The Nature Conservancy
15 slides
Slides: Recommended Best Management Practices For Plants Of Concern: Practices Developed To Reduce The Impacts Of Oil And Gas Development Activities To Plants Of Concern, Brian Kurzel, Colorado Rare Plant Conservation Initiative
Slides: Recommended Best Management Practices For Plants Of Concern: Practices Developed To Reduce The Impacts Of Oil And Gas Development Activities To Plants Of Concern, Brian Kurzel, Colorado Rare Plant Conservation Initiative
Best Practices for Community and Environmental Protection (October 14)
Presenter: Brian Kurzel, Colorado Natural Areas Program (CNAP)
27 slides
Slides: Environmentally Friendly Drilling Systems Program (Efd), Rich Haut
Slides: Environmentally Friendly Drilling Systems Program (Efd), Rich Haut
Best Practices for Community and Environmental Protection (October 14)
Presenter: Rich Haut, Houston Advanced Research Center
23 slides
Slides: Innovative Best Practices For The Western Slope: Stormwater Management Solutions And Philosophy For The Oil And Gas Industry, Kyle N. Schildt
Slides: Innovative Best Practices For The Western Slope: Stormwater Management Solutions And Philosophy For The Oil And Gas Industry, Kyle N. Schildt
Best Practices for Community and Environmental Protection (October 14)
Presenter: Kyle N. Schildt, P.E., LT Environmental, Inc.
12 slides
Slides: Rifle, Silt, New Castle Community Development Plan: A Collaborative Planning Approach To Natural Gas Development, Peggy Utesch
Slides: Rifle, Silt, New Castle Community Development Plan: A Collaborative Planning Approach To Natural Gas Development, Peggy Utesch
Best Practices for Community and Environmental Protection (October 14)
Presenter: Peggy Utesch, Movin' Forward Consulting
25 slides
Slides: Bmp Project, Kent Kuster
Slides: Bmp Project, Kent Kuster
Best Practices for Community and Environmental Protection (October 14)
Presenter: Kent Kuster, Consultation Coordinator, Colorado Department of Public Health and Environment (CDPHE)
17 slides
Slides: Comprehensive Drilling Plans, Dave Neslin
Slides: Comprehensive Drilling Plans, Dave Neslin
Best Practices for Community and Environmental Protection (October 14)
Presenter: Dave Neslin, Director, Colorado OIl and Gas Conservation Commission (COGCC)
8 slides
Slides: The Use Of Terrestrial Cyanobacteria For The Rehabilitation Of Arid Soils: Not Just Another Good Idea, Timothy Flynn
Slides: The Use Of Terrestrial Cyanobacteria For The Rehabilitation Of Arid Soils: Not Just Another Good Idea, Timothy Flynn
Best Practices for Community and Environmental Protection (October 14)
Presenter: Dr. Timothy Flynn, Primordial Solutions Inc.
42 slides
Slides: Intermountain Oil And Gas Bmp Project, Kathryn Mutz
Slides: Intermountain Oil And Gas Bmp Project, Kathryn Mutz
Best Practices for Community and Environmental Protection (October 14)
Presenter: Kathryn Mutz, Natural Resources Law Center
19 slides
Slides: Introduction To Constructive Engagement In The Oil And Gas Industry, Susan T. Wildau, Christopher W. Moore
Slides: Introduction To Constructive Engagement In The Oil And Gas Industry, Susan T. Wildau, Christopher W. Moore
Best Practices for Community and Environmental Protection (October 14)
Presenters: Susan T. Wildau and Christopher W. Moore, CDR Associates (Collaborative Decision Resources), Boulder, CO
22 slides
Droughtscape, Fall 2009, Kelly Smith
Droughtscape, Fall 2009, Kelly Smith
DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)
DroughtScape, Fall 2009
Impacts Of Meteorological Factors On Modis-Observed Fire Activity In The North American Boreal Forest: The Role Of Lightning, David A. Peterson
Impacts Of Meteorological Factors On Modis-Observed Fire Activity In The North American Boreal Forest: The Role Of Lightning, David A. Peterson
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
The meteorological impact on wildfire activity in the North American boreal forest during the fire seasons of 2000 – 2006 is statistically analyzed through an integration of the following data sets: the MODerate Resolution Imaging Spectroradiometer (MODIS) level 2 fire products, the 3-hourly 32-km gridded meteorological data from North American Regional Reanalysis (NARR), the instantaneous lightning data collected by the Canadian Lightning Detection Network (CLDN), and the Alaska Lightning Detection Network (ALDN). Positive anomalies of the 500 hpa geopotential height field, convective available potential energy (CAPE), number of cloud-to-ground lightning strikes, and the number of consecutive dry days are found …
Factors Influencing Perennial Pasture Adoption In The Medium Rainfall Zone Of The South West Natural Resource Management Region Of Western Australia, Ned Crossley, Stephen Tunbridge, Kathi Mcdonald
Factors Influencing Perennial Pasture Adoption In The Medium Rainfall Zone Of The South West Natural Resource Management Region Of Western Australia, Ned Crossley, Stephen Tunbridge, Kathi Mcdonald
Resource management technical reports
No abstract provided.
Near-Surface Atmospheric Response To Simulated Changes In Land-Cover Vegetation Fraction, And Soil Moisture Over Western Kentucky, Ronnie Leeper
Near-Surface Atmospheric Response To Simulated Changes In Land-Cover Vegetation Fraction, And Soil Moisture Over Western Kentucky, Ronnie Leeper
Masters Theses & Specialist Projects
A series of land-use-land-cover-change (LULCC) based sensitivity experiments, including changes in vegetation type, fractional vegetation (FV), and soil moisture (SM), over Western Kentucky were conducted to investigate atmospheric response to land-use. The choice of land-use for this study was chosen in the context of Western Kentucky’s historical LULCC. For this study, vegetation types considered were grassland, forest, and bare soil with further variations in FV for grassland and forest at 25, 50, 75, and 100 % and systematic increases and decreases in volumetric SM of 0.05, 0.10, and 0.15 m3 m-3. To the author’s knowledge, this is the first assessment …
Esperance Area Acid Sulfate Soil Hazard Mapping, Paul Galloway, Simon Clarendon
Esperance Area Acid Sulfate Soil Hazard Mapping, Paul Galloway, Simon Clarendon
Resource management technical reports
This project created a regional scale (1:100 000) acid sulfate soil (ASS) hazard map for the Lake Warden and Esperance town areas, using a combination of existing soil-landscape mapping information and elevation data, supported by field observations and laboratory data from 18 soil cores and 29 additional borelogs with descriptive information useful for identifying ASS and potential ASS materials. All data gathered during this project used common standards and protocols developed in Australia for identifying and mapping ASS materials. The project extends the mapping for acid sulfate soil in the region, complementing existing maps compiled for other parts of the …
Options For Achieving And Maintaining Low Salinity In Agricultural Dams, Tilwin Westrup
Options For Achieving And Maintaining Low Salinity In Agricultural Dams, Tilwin Westrup
Resource management technical reports
No abstract provided.
Droughtscape, Summer 2009, Kelly Smith
Droughtscape, Summer 2009, Kelly Smith
DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)
U.S. Drought Monitor Forum, 2009
El Niño Could Bring Wet Winter After Hot Summer
Around the World
Agriculture Hit Hard in California, Texas
Predictable Patterns in Missouri River Basin?
Seeking Low-Flow Effects in Colorado, Southeast
VegDRI Began Coast-to-Coast Coverage in May
Markov Chain Estimation Of Avian Seasonal Fecundity, Matthew A. Etterson, Richard S. Bennett, Eric L. Kershner, Jeffery W. Walk
Markov Chain Estimation Of Avian Seasonal Fecundity, Matthew A. Etterson, Richard S. Bennett, Eric L. Kershner, Jeffery W. Walk
United States Environmental Protection Agency: Publications
Avian seasonal fecundity is of interest from evolutionary, ecological, and conservation perspectives. However, direct estimation of seasonal fecundity is difficult, especially with multi-brooded birds, and models representing the renesting and quitting processes are usually required. To explore the consequences of modeling decisions on inference about avian seasonal fecundity, we generalize previous Markov chain (MC) models of avian nest success to formulate two different MC models of avian seasonal fecundity that represent two different ways to model renesting decisions and breeding cessation. We parameterize both Markov chains (regular and absorbing) for two species (Eastern Meadowlark, Sturnella magna, and Dickcissel, Spiza …
Anthropogenic Osmium In Rain And Snow Reveals Global-Scale Atmospheric Contamination, Cynthia Chen, Peter N. Sedwick, Mukul Sharma
Anthropogenic Osmium In Rain And Snow Reveals Global-Scale Atmospheric Contamination, Cynthia Chen, Peter N. Sedwick, Mukul Sharma
Dartmouth Scholarship
Osmium is one of the rarer elements in seawater, with typical concentration of approximately 10 x 10(-15) g g(-1) (5.3 x 10(-14) mol kg(-1)). The osmium isotope composition ((187)Os/(188)Os ratio) of deep oceans is 1.05, reflecting a balance between inputs from continental crust (approximately 1.3) and mantle/cosmic dust (approximately 0.13). Here, we show that the (187)Os/(188)Os ratios measured in rain and snow collected around the world range from 0.16 to 0.48, much lower than expected (>1), but similar to the isotope composition of ores (approximately 0.2) that are processed to extract platinum and other metals to be used primarily …
Construction Site Sedimentary Pollution In A Watershed, Imo Okwu
Construction Site Sedimentary Pollution In A Watershed, Imo Okwu
Theses and Dissertations
In the study of sediment pollution on and near a construction site, it is necessary to remember that sediment movement and deposition are part of the natural environment before the intervention of construction. As with many hydrologic problems, most sedimentation problems have visual impacts for relatively short periods, because they are rainstorm-related. Perhaps the most serious sedimentation problem is general deterioration of the total environment, a condition usually not recognized by the public. This research presents an analytical evaluation of five construction sites. The analytical framework categorized the life cycle of construction sites into three stages in order to facilitate …
National Primary Drinking Water Regulations
National Primary Drinking Water Regulations
United States Environmental Protection Agency: Publications
NOTES
1 Definitions
• Maximum Contaminant Level Goal (MCLG): The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety and are non-enforceable public health goals.
• Maximum Contaminant Level (MCL): The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to MCLGs as feasible using the best available treatment technology and taking cost into consideration. MCLs are enforceable standards.
• Maximum Residual Disinfectant Level Goal (MRDLG): The level of a drinking water disinfectant below which there is …
Constraints On The Utility Of Mno2 Cartridge Method For The Extraction Of Radionuclides: A Case Study Using 234Th, M. Baskaran, P. W. Swarzenski, B. A. Biddanda
Constraints On The Utility Of Mno2 Cartridge Method For The Extraction Of Radionuclides: A Case Study Using 234Th, M. Baskaran, P. W. Swarzenski, B. A. Biddanda
Environmental Science and Geology Faculty Research Publications
Large volume (102–103 L) seawater samples are routinely processed to investigate the partitioning of particle reactive radionuclides and Ra between solution and size-fractionated suspended particulate matter. One of the most frequently used methods to preconcentrate these nuclides from such large volumes involves extraction onto three filter cartridges (a prefilter for particulate species and two MnO2-coated filters for dissolved species) connected in series. This method assumes that the extraction efficiency is uniform for both MnO2-coated cartridges, that no dissolved species are removed by the prefilter, and that any adsorbed radionuclides are not desorbed from …
Estimating The Effects Of Detection Heterogeneity And Overdispersion On Trends Estimated From Avian Point Counts, Matthew A. Etterson, Gerald J. Niemi, Nicholas P. Danz
Estimating The Effects Of Detection Heterogeneity And Overdispersion On Trends Estimated From Avian Point Counts, Matthew A. Etterson, Gerald J. Niemi, Nicholas P. Danz
United States Environmental Protection Agency: Publications
Point counts are a common method for sampling avian distribution and abundance. Although methods for estimating detection probabilities are available, many analyses use raw counts and do not correct for detectability. We use a removal model of detection within an N-mixture approach to estimate abundance trends corrected for imperfect detection. We compare the corrected trend estimates to those estimated from raw counts for 16 species using 15 years of monitoring data on three national forests in the western Great Lakes, USA. We also tested the effects of overdispersion by modeling both counts and removal mixtures under three statistical distributions: …
Droughtscape, Spring 2009, Kelly Smith
Droughtscape, Spring 2009, Kelly Smith
DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)
U.S. Drought Monitor Publishes Map 500!
Weakening La Niña May Mean Relief for Texas
Upcoming Workshops
Drought Impacts Worst in California, Texas
CoCoRaHS to Request Drought Impact Data, Too
NDMC Adds Researcher
K-12 Students Learn About Drought
Fisheries Research Contract Report No. 20 - Risk Assessment Of The Record Brook Inter-Basin Water Transfer Scheme To The Aquatic Fauna Of The Donnelly And Warren Rivers, M. De Graaf, D. L. Morgan, S. J. Beatty, C. W. Hugh
Fisheries Research Contract Report No. 20 - Risk Assessment Of The Record Brook Inter-Basin Water Transfer Scheme To The Aquatic Fauna Of The Donnelly And Warren Rivers, M. De Graaf, D. L. Morgan, S. J. Beatty, C. W. Hugh
Fisheries Research Contract Reports
Report to the Water Corporation of Western Australia
This report describes the fishes and freshwater crayfishes of the Donnelly and Warren River catchments and provides a risk assessment to these fauna of the proposed extraction of water from Record Brook (tributary of the Donnelly River) and subsequent transfer to Scabby Gully Dam (Warren River catchment). The proposed location of the structure in Record Brook is at the gauging station ~1 km upstream from the confluence with the Donnelly River. The project aims to divert peak flows in the winter and spring flow period, transferring around 500 ML each year. The …