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- Shifting Baselines and New Meridians: Water, Resources, Landscapes, and the Transformation of the American West (Summer Conference, June 4-6) (23)
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Articles 1 - 30 of 313
Full-Text Articles in Oceanography and Atmospheric Sciences and Meteorology
Limnological Assistance For The Lake Mead National Recreation Area In Meeting The Challenge Of The Water 2025 Initiative: Quarterly Report, Period Ending December 31, 2008, Margaret N. Rees
Limnological Studies
Project 1: Technical input has been provided at four advisory team meetings attended this quarter.
Project 2: A formal report titled, Surface Water Monitoring for Indicator Bacteria in High-use Sites of the Lake Mead National Recreation Area, has been prepared; an accompanying poster presentation for the Lake Mead Science Symposium is in preparation.
Project 3: A draft document titled, “Interagency Monitoring Action Plan (I-MAP): Quagga Mussels in Lakes Mead and Mohave” has been presented to an interagency core group to review and input. Six oral presentations related to quagga mussels are in preparation by this group for the Lake Mead …
Agenda: Evolving Regional Frameworks For Ag-To-Urban Water Transfers, University Of Colorado Boulder. Natural Resources Law Center, Western Water Policy Program, Western Water Assessment (Program), Red Lodge Clearinghouse
Agenda: Evolving Regional Frameworks For Ag-To-Urban Water Transfers, University Of Colorado Boulder. Natural Resources Law Center, Western Water Policy Program, Western Water Assessment (Program), Red Lodge Clearinghouse
Evolving Regional Frameworks for Ag-to-Urban Water Transfers (December 11)
The permanent transfer of water from agricultural users to municipalities has become a common feature of water management in several western states. In many cases, these voluntary market‐based transfers provide significant benefits to both the buyers and sellers, but many third parties—including remaining irrigators, rural businesses and communities dependent upon agricultural economies—have been negatively impacted. While some impacts of these so‐called “buy and dry” transfers are largely unavoidable, many can be lessened by temporary arrangements that only shift water to cities in years when municipal supplies are inadequate, such as drought and post‐drought storage recovery, and by consolidating individual farm‐to‐city …
Slides: Pvid/Mwd Land Management, Crop Rotation And Water Supply Program, Ed Smith
Slides: Pvid/Mwd Land Management, Crop Rotation And Water Supply Program, Ed Smith
Evolving Regional Frameworks for Ag-to-Urban Water Transfers (December 11)
Presenter: Ed Smith, General Manager, Palo Verde Irrigation District, Southern California
25 slides
Slides: Lower Arkansas Valley Super Ditch Company, Inc.: Water Leasing Program, Peter Nichols
Slides: Lower Arkansas Valley Super Ditch Company, Inc.: Water Leasing Program, Peter Nichols
Evolving Regional Frameworks for Ag-to-Urban Water Transfers (December 11)
Presenter: Peter Nichols, General Counsel of the Lower Arkansas Valley “Super Ditch” Company, Trout, Raley, Montano, Witwer & Freeman PC, Colorado
33 slides
Slides: Idaho Rental Pool: Rules And Procedures, Idaho Water Resource Board, Jerry R. Rigby
Slides: Idaho Rental Pool: Rules And Procedures, Idaho Water Resource Board, Jerry R. Rigby
Evolving Regional Frameworks for Ag-to-Urban Water Transfers (December 11)
Presenter: Jerry Rigby, Counsel for Fremont‐Madison Irrigation District, Rigby, Thatcher, Andrus, Rigby & Moeller, Idaho
25 slides
On The Movement Of Beluga Whales In Cook Inlet, Alaska: Simulations Of Tidal And Environmental Impacts Using A Hydrodynamic Inundation Model, Tal Ezer, Roderick Hobbs, Lie-Yauw Oey
On The Movement Of Beluga Whales In Cook Inlet, Alaska: Simulations Of Tidal And Environmental Impacts Using A Hydrodynamic Inundation Model, Tal Ezer, Roderick Hobbs, Lie-Yauw Oey
CCPO Publications
The population of beluga whales in Cook Inlet, Alaska, is in decline, and since 2000 these whales have been under consideration for designation as "endangered" under the Endangered Species Act (and were placed on the list in October 2008, just before this article went to press). In order to study environmental and hydrodynamic impacts on the belugas' movements and survival in the unique habitat of the inlet, a three-dimensional ocean circulation and inundation model is combined with satellite-tracked beluga whale data. Model-wale data comparisons from two whale paths during a five-day period (september 17-21, 2000) covering 10 tidal cycles suggest …
Lidar-Derived Benthic Habitat Maps Enable The Quantification Of Potential Dredging Impacts To Coral Reef Ecosystems, Brian K. Walker, Richard E. Dodge, David S. Gilliam
Lidar-Derived Benthic Habitat Maps Enable The Quantification Of Potential Dredging Impacts To Coral Reef Ecosystems, Brian K. Walker, Richard E. Dodge, David S. Gilliam
Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures
An essential component to the analysis of ecosystem services is to characterize and define the major habitats within the area of interest. Aerial photography and/or satellite imagery coupled with geographic information systems (GIS) are frequently used to identify and quantify habitats in open terrestrial ecosystems. However, it is more difficult to successfully apply this methodology to deeper, <20 m, underwater environments. Light detection and ranging (LIDAR), a relatively new remote sensing technology that provides detailed bathymetry, can be used when adequate imagery is not available. This study uses LIDAR as the basis to characterize various benthic habitats in a coral reef ecosystem in order to quantify the habitats for a Habitat Equivalency Analysis (HEA) related to planned dredging activities to expand the Port Everglades entrance channel, Broward County, FL. As part of a regional mapping effort, marine benthic habitats were characterized for Broward County, FL. A mosaic of interpolated, sunshaded, laser bathymetry data served as the foundation upon which acoustic ground discrimination, limited subbottom profiling and aerial photography, and groundtruthing data were added in a GIS to aid in interpretation of benthic habitats. Expert-driven visual interpretation outlined geomorphological features in the LIDAR data at a scale of 1:6000 with a minimum mapping unit of 1 acre. The map of Broward County yielded a high overall accuracy of 89.6%. To quantify the potential dredging impacts, the habitat layer was clipped in GIS to the boundaries of anticipated direct and indirect impacts of the proposed project. Then the area of each clipped polygon was totaled for each habitat by impact type. HEA and Florida’s Uniform Mitigation Assessment Method (UMAM) were performed using these areas. This work would not have been possible using satellite imagery or aerial photography alone and illustrates the capability of relatively new remote sensing technologies to aid in the definition and quantification of habitats for ecosystem service analyses.
Sfa Weather Station-December 2008, Arthur Temple College Of Forestry And Agriculture, Stephen F. Austin State University
Sfa Weather Station-December 2008, Arthur Temple College Of Forestry And Agriculture, Stephen F. Austin State University
Weather Station Data
No abstract provided.
Seasonal Changes In A Eutrophic Lake (Wilgreen Lake, Madison County, Kentucky) From Summer Stratification Through Fall Turnover, Richard D. Stockwell, Walter S. Borowski
Seasonal Changes In A Eutrophic Lake (Wilgreen Lake, Madison County, Kentucky) From Summer Stratification Through Fall Turnover, Richard D. Stockwell, Walter S. Borowski
EKU Faculty and Staff Scholarship
No abstract provided.
An Assessment Of Alternative Feed Ingredients In Practical Diets For Florida Pompano (Trachinotus Carolinus) Held In Low Salinity Recirculating Systems, Terhea Nichole Williams
An Assessment Of Alternative Feed Ingredients In Practical Diets For Florida Pompano (Trachinotus Carolinus) Held In Low Salinity Recirculating Systems, Terhea Nichole Williams
Electronic Theses and Dissertations
The identification of alternative protein sources for partial or whole replacement of fishmeal (FM) is a priority in the development of suitable, low cost feed formulations for the Florida pompano (Trachinotus carolinus). To evaluate alternative feed ingredients for the potential replacement of FM in diets fed to juvenile pompano, a series of four experiments were conducted. The objectives of Experiments 1 and 2 were to determine the apparent digestibility of crude protein (ADCP), energy (ADE), and apparent amino acid availability (AAAA) of three plant based ingredients (soybean meal (SBM), soy protein isolate (SPI), corn gluten meal (CGM)) and three by-product …
Modeling The Electrodynamics Of The Low-Latitude Ionosphere, Christian Stephen Wohlwend
Modeling The Electrodynamics Of The Low-Latitude Ionosphere, Christian Stephen Wohlwend
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The electrodynamics of the Earth's low-latitude ionosphere is dependent on the ionospheric conductivity and the thermospheric neutral density, temperature, and winds present. This two-part study focused on the gravity wave seeding mechanism of equatorial plasma depletions in the ionosphere and the associated equatorial spread F, as well as the differences between a two-dimensional flux tube integrated electrodynamics model and a three-dimensional model for the same time period. The gravity wave seeding study was based on a parameterization of a gravity wave perturbation using a background empirical thermosphere and a physics-based ionosphere for the case of 12 UT on 26 September …
Surface Water Interaction With The Flood Plain In The Lower Virgin River, Clark County, Nevada, Jeffrie L. Pompeo
Surface Water Interaction With The Flood Plain In The Lower Virgin River, Clark County, Nevada, Jeffrie L. Pompeo
UNLV Theses, Dissertations, Professional Papers, and Capstones
Development of existing surface water rights on the Virgin River would decrease Southern Nevada's dependency on the Colorado River. Three monitoring sites were established to examine the relationship between Virgin River surface water flows and the floodplain aquifer. Automated water level measuring devices were installed in piezometers and wells to continuously track water levels and flow direction. Pump tests were conducted to establish the hydraulic parameters of the floodplain aquifer. Water chemistry data was analyzed to help determine the correlation between the floodplain aquifer and Virgin River water. Precipitation, recharge, streamflow and ET estimates were used to discuss water budgets. …
Nutrient Loading And Eutrophication In The Great Salt Lake, Wayne A. Wurtsbaugh
Nutrient Loading And Eutrophication In The Great Salt Lake, Wayne A. Wurtsbaugh
Watershed Sciences Faculty Publications
No abstract provided.
Collaborative Research: The Effect Of Iron-Complexing Ligands On Iron Availability To Phytoplankton In Hnlc Waters Of The Subarctic Pacific Ocean, Mark L. Wells, Mary Jane Perry, Charles Trick
Collaborative Research: The Effect Of Iron-Complexing Ligands On Iron Availability To Phytoplankton In Hnlc Waters Of The Subarctic Pacific Ocean, Mark L. Wells, Mary Jane Perry, Charles Trick
University of Maine Office of Research Administration: Grant Reports
Scientists from the University of Maine and San Francisco State University propose to do deck-board incubation experiments in high nutrient, low chlorophyll (HNLC) waters of the eastern (Ocean Station PAPA) and the western (Ocean Station KNOT) Subarctic Pacific Ocean to determine how Fe supply affects phytoplankton species composition. Specifically, this team of scientists plans to address the following specific objectives: (1) assess how the relative availability of Fe bound to weaker and stronger classes of ligands differs among different phytoplankton groups (cyanobacteria, diatoms, dinoflagellates, prymnesiophytes) and how these differences influence the evolution of the phytoplankton community after Fe enrichment in …
Sfa Weather Station-November 2008, Arthur Temple College Of Forestry And Agriculture, Stephen F. Austin State University
Sfa Weather Station-November 2008, Arthur Temple College Of Forestry And Agriculture, Stephen F. Austin State University
Weather Station Data
No information on when the report was closed was found.
Live Release Of A Bigeye Sand Tiger Odontaspis Noronhai (Elasmobranchii: Lamniformes) In The Western North Atlantic Ocean, David W. Kerstetter, Mae Taylor
Live Release Of A Bigeye Sand Tiger Odontaspis Noronhai (Elasmobranchii: Lamniformes) In The Western North Atlantic Ocean, David W. Kerstetter, Mae Taylor
Marine & Environmental Sciences Faculty Articles
No abstract provided.
Seasonal Changes In A Eutrophic Lake, Wilgreen Lake, Madison County, Kentucky, Richard D. Stockwell, Walter S. Borowski
Seasonal Changes In A Eutrophic Lake, Wilgreen Lake, Madison County, Kentucky, Richard D. Stockwell, Walter S. Borowski
EKU Faculty and Staff Scholarship
WilgreenLake (Madison County, Kentucky) covers ~169 acres, formed in 1966 by damming Taylor Fork. The Wilgreen watershed drains residential developments, modified woodlands, cattle pasture, and some industrial/urban areas in the city of Richmond. The lake is deemed “nutrient impaired” by the EPA.
Our main objective is to document the seasonal changes in key lake parameters from summer stratification through fall overturn over 4 months of sampling, August through November, 2008. We collect temperature, oxygen, pH, and conductivity data from 19 stations at depth intervals of 1 meter using an YSI multi-probe. Concurrent with collecting these framework data, we take water …
Observations Of Clustering Inside Oceanic Bubble Clouds And The Effect On Short-Range Acoustic Propagation, Thomas C. Weber
Observations Of Clustering Inside Oceanic Bubble Clouds And The Effect On Short-Range Acoustic Propagation, Thomas C. Weber
Center for Coastal and Ocean Mapping
It has recently been shown [Weber, T. C. et al. (Year: 2007). “Acoustic propagation through clustered bubble clouds,” IEEE J. Ocean. Eng.32, 513–523] that gas bubble clustering plays a role in determining the acoustic field characteristics of bubbly fluids. In particular, it has been shown that clustering changes the bubble-induced attenuation as well as the ping-to-ping variability in the acoustic field. The degree to which bubble clustering exists in nature, however, is unknown. This paper describes a method for quantifying bubble clustering using a high frequency (400kHz) multibeam sonar, and reports on observations of near-surface bubbleclustering during a storm ( …
Progress Toward Meeting The Challenges Of Our Coastal Urban Future, Juile Pullen, Jason Ching, David J. Sailor, William Thompson, Bob Bornstein, Darko Koracin
Progress Toward Meeting The Challenges Of Our Coastal Urban Future, Juile Pullen, Jason Ching, David J. Sailor, William Thompson, Bob Bornstein, Darko Koracin
Mechanical and Materials Engineering Faculty Publications and Presentations
The article provides information on the Seventh Conference on Coastal Atmospheric and Oceanic Prediction and Processes, and the Seventh Symposium on the Urban Environment in San Diego, California on September 9-13, 2008. Topics include the heterogeneity of urban areas, coastal vulnerabilities, urban planning, and emergency response modeling. The conference featured several speakers including Walter Dabberdt and James Voogt.
Restoration Of Dredged Canals In Wetlands: A Comparison Of Methods, Joseph Baustian, R. Eugene Turner, Nancy F. Walters, David P. Muth
Restoration Of Dredged Canals In Wetlands: A Comparison Of Methods, Joseph Baustian, R. Eugene Turner, Nancy F. Walters, David P. Muth
Faculty Publications
A comparison of two methods for restoring dredged canals to wetlands was examined at the Jean Lafitte National Historical Park and Preserve’s Barataria Preserve Unit near New Orleans, LA. Both northern and southern canals had the remnant dredged spoil material returned to the canal, but the southern canal had additional sediment pumped in from a nearby lake. The water depth in the southern canal shallowed significantly from 1.2 to 0.4 m following backfilling and sediment addition, while the depth of the northern canal (which received no additional sediment) remained unchanged following backfilling. Neither site had complete soil restoration, but the …
Transpacific Transport Of Ozone Pollution And The Effect Of Recent Asian Emission Increases On Air Quality In North America: An Integrated Analysis Using Satellite, Aircraft, Ozonesonde, And Surface Observations, D Zhang, D J. Jacob, K F. Boersma, D A. Jaffe, J R. Olson, K W. Bowman, J Worden, A M. Thompson, M A. Avery, Ronald C. Cohen, Jack E. Dibb, F Flocke, H Fuelberg, L Gregory Huey, W W. Mcmillan, H B. Singh, Andrew Weinheimer
Transpacific Transport Of Ozone Pollution And The Effect Of Recent Asian Emission Increases On Air Quality In North America: An Integrated Analysis Using Satellite, Aircraft, Ozonesonde, And Surface Observations, D Zhang, D J. Jacob, K F. Boersma, D A. Jaffe, J R. Olson, K W. Bowman, J Worden, A M. Thompson, M A. Avery, Ronald C. Cohen, Jack E. Dibb, F Flocke, H Fuelberg, L Gregory Huey, W W. Mcmillan, H B. Singh, Andrew Weinheimer
Earth Sciences
We use an ensemble of aircraft, satellite, sonde, and surface observations for April-May 2006 (NASA/INTEX-B aircraft campaign) to better understand the mechanisms for transpacific ozone pollution and its implications for North American air quality. The observations are interpreted with a global 3-D chemical transport model (GEOS-Chem). OMI NO2 satellite observations constrain Asian anthropogenic NOx emissions and indicate a factor of 2 increase from 2000 to 2006 in China. Satellite observations of CO from AIRS and TES indicate two major events of Asian transpacific pollution during INTEX-B. Correlation between TES CO and ozone observations shows evidence for transpacific ozone pollution. The …
Town Of Salisbury Harbor Plan -- Phase 1, Urban Harbors Institute, University Of Massachusetts Boston
Town Of Salisbury Harbor Plan -- Phase 1, Urban Harbors Institute, University Of Massachusetts Boston
Urban Harbors Institute Publications
This document presents information developed during the first phase of the planning process to develop a Harbor Plan for the Town of Salisbury, Massachusetts. The initial phase consists of compiling and mapping existing information on natural resources, uses of the waterways and shoreline, relevant government regulatory programs and jurisdictions, identifying issues, and conducting some analyses of recreational boating-related needs. A mooring plan and mooring field delineation plan are required by the Harbor Management Plan and will be periodically updated as needed. This phase concludes with a preliminary identification of long-term goals and the development of recommendations for next steps in …
Coral Reef Restoration And Mitigation In Florida And Beyond, Jocelyn Karazsia, Tom Moore, James Byrne, David S. Gilliam, John Hunt
Coral Reef Restoration And Mitigation In Florida And Beyond, Jocelyn Karazsia, Tom Moore, James Byrne, David S. Gilliam, John Hunt
Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures
No abstract provided.
Fall 2008, Nsu Oceanographic Center
Sfa Weather Station-October 2008, Arthur Temple College Of Forestry And Agriculture, Stephen F. Austin State University
Sfa Weather Station-October 2008, Arthur Temple College Of Forestry And Agriculture, Stephen F. Austin State University
Weather Station Data
No abstract provided.
Droughtscape- Fall 2008, Kelly Smith
Droughtscape- Fall 2008, Kelly Smith
Droughtscape, Quarterly Newsletter of NDMC, 2007-
Washington Workshops Scheduled for November
Look for Warm West, Rainy Gulf, Easing Drought
New Drought Monitor Authors Profiled
Drought Impact Awareness Growing: Weather Forecast Offices, Geographers Highlight Issue
NDMC Takes on New Projects
Hundreds+ See NDMC at Ag Trade Show
NDMC Welcomes New Employees
Droughtscape- Fall 2008, Kelly Smith
Droughtscape- Fall 2008, Kelly Smith
Droughtscape, Quarterly Newsletter of NDMC, 2007-
Washington Workshops Scheduled for November
Look for Warm West, Rainy Gulf, Easing Drought
New Drought Monitor Authors Profiled
Drought Impact Awareness Growing: Weather Forecast Offices, Geographers Highlight Issue
NDMC Takes on New Projects
Hundreds+ See NDMC at Ag Trade Show
NDMC Welcomes New Employees
Consequences Of More Extreme Precipitation Regimes For Terrestrial Ecosystems, S. D. Smith, C. Beier, Aimee T. Classen, Melinda D. Smith, Jana L. Heisler, S. W. Leavitt, Alan K. Knapp, D. Briske, Y. Luo, M. Reichstein, J. E. Bell, Philip A. Fay, R. Sherry, Benjamin Smith
Consequences Of More Extreme Precipitation Regimes For Terrestrial Ecosystems, S. D. Smith, C. Beier, Aimee T. Classen, Melinda D. Smith, Jana L. Heisler, S. W. Leavitt, Alan K. Knapp, D. Briske, Y. Luo, M. Reichstein, J. E. Bell, Philip A. Fay, R. Sherry, Benjamin Smith
Life Sciences Faculty Research
Amplification of the hydrological cycle as a consequence of global warming is forecast to lead to more extreme intra-annual precipitation regimes characterized by larger rainfall events and longer intervals between events. We present a conceptual framework, based on past investigations and ecological theory, for predicting the consequences of this underappreciated aspect of climate change. We consider a broad range of terrestrial ecosystems that vary in their overall water balance. More extreme rainfall regimes are expected to increase the duration and severity of soil water stress in mesic ecosystems as intervals between rainfall events increase. In contrast, xeric ecosystems may exhibit …
Spatial Analyses And Repletion Of Gargathy Coastal Lagoon, Loreto Herraiz Gomez
Spatial Analyses And Repletion Of Gargathy Coastal Lagoon, Loreto Herraiz Gomez
OES Theses and Dissertations
Coastal lagoons and bays vary in shape and size in response to antecedent topography, geologic processes and sea level rise. Variations in shape and environmental conditions of coastal basins are believed to influence the distribution of benthic sub-environments and the exchange of water with the ocean and other adjacent coastal systems. Gargathy Inlet and its coastal lagoon vary spatially from the inlet, where the greatest depths are observed, to the mainland, dominated by shallow intertidal areas, colonized by marsh. Hypsographic and hydro-hypsographic analyses of Gargathy's coastal lagoon were the primary techniques applied to understand the relative distribution of the benthic …
Occohannock Creek Shoreline Erosion Assessment And Living Shoreline Options Report, C. Scott Hardaway Jr., Donna A. Milligan, Kevin O'Brien, Christine Wilcox, Shoreline Studies Program, Marcia Berman, Sharon Killeen, Tami Rudnicky, Center For Coastal Resources Management
Occohannock Creek Shoreline Erosion Assessment And Living Shoreline Options Report, C. Scott Hardaway Jr., Donna A. Milligan, Kevin O'Brien, Christine Wilcox, Shoreline Studies Program, Marcia Berman, Sharon Killeen, Tami Rudnicky, Center For Coastal Resources Management
Reports
This study provides information to Occohannock Creek property owners to help them assess their shoreline stability and their options if erosion is a problem. In the past, shoreline erosion control options were typically limited to rip-rap, groins, or bulkheads. These hard structures often destroyed marsh and other habitat and may not have provided the protection desired. Other methods of erosion control now exist that have been used in a variety of conditions and evaluated for their durability and performance. The alternative techniques incorporate vegetation and are referred to as Living Shoreline designs. Conditions on Occohannock Creek make it a very …