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Articles 1 - 30 of 142
Full-Text Articles in Physical Sciences and Mathematics
Nevada Interagency Volunteer Program: Helping Hands Across Public Lands—Phase Ii: Final Project Report, December 31, 2012, Margaret N. Rees
Nevada Interagency Volunteer Program: Helping Hands Across Public Lands—Phase Ii: Final Project Report, December 31, 2012, Margaret N. Rees
Get Outdoors Nevada
- Maintained a central clearinghouse created for Southern Nevada public lands volunteers, including: ─ an online volunteer data-management application (Volgistics) adopted and customized for the program and populated with 8,500 active and 961 mailing list volunteer records ─ a community outreach Web site that currently averages 8,230 pages viewed per month since July 2007 and has aided in the recruitment of 11,943 volunteers ─ updated website to word press for sustainability ─ branding development and marketing and outreach tool creation
- Updated Standard Operating Procedures (SOPs) for all areas of Interagency Volunteer Program Management—recruitment, training, recognition, retention of volunteers, event planning, and …
U.S. Drought Monitor, December 25, 2012, Richard R. Heim Jr.
U.S. Drought Monitor, December 25, 2012, Richard R. Heim Jr.
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for December 25, 2012 (12/25/12) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Hay, Cattle, Winter wheat.
Information Content Of Seasonal Forecasts In A Changing Climate, Nir Krakauer, Michael D. Grossberg, Irina Gladkova, Hannah Aizenman
Information Content Of Seasonal Forecasts In A Changing Climate, Nir Krakauer, Michael D. Grossberg, Irina Gladkova, Hannah Aizenman
Publications and Research
We study the potential value to stakeholders of probabilistic long-term forecasts, as quantified by the mean information gain of the forecast compared to climatology. We use as a case study the USA Climate Prediction Center (CPC) forecasts of 3-month temperature and precipitation anomalies made at 0.5-month lead time since 1995. Mean information gain was positive but low (about 2% and 0.5% of the maximum possible for temperature and precipitation forecasts, resp.) and has not increased over time. Information-based skill scores showed similar patterns to other, non-information-based, skill scores commonly used for evaluating seasonal forecasts but tended to be smaller, suggesting …
U.S. Drought Monitor, December 18, 2012, David Simeral
U.S. Drought Monitor, December 18, 2012, David Simeral
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for December 18, 2012 (12/18/12) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Hay, Cattle, Winter wheat.
U.S. Drought Monitor, December 11, 2012, Rich Tinker
U.S. Drought Monitor, December 11, 2012, Rich Tinker
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for December 11, 2012 (12/11/12) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Hay, Cattle, Winter wheat.
U.S. Drought Monitor, December 4, 2012, Rich Tinker
U.S. Drought Monitor, December 4, 2012, Rich Tinker
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for December 4, 2012 (12/4/12) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Hay, Cattle, Winter wheat.
Interactions Of Zooplankton And Phytoplankton With Cyanobacteria, Rebecca Alexander
Interactions Of Zooplankton And Phytoplankton With Cyanobacteria, Rebecca Alexander
School of Natural Resources: Dissertations, Theses, and Student Research
Cyanobacteria are a major concern in Nebraska reservoirs and are capable of producing toxins that can cause skin irritations and gastrointestinal problems, as well as affect the nervous system. It is important to determine the mechanisms that can cause cyanobacteria blooms due to the effect they can have on human health. The interaction of zooplankton and other phytoplankton groups with cyanobacteria is important because there is a biological component in surface waters that should be taken into consideration along with the physical and chemical parameters that have been noted to promote cyanobacteria. For example, zooplankton have the ability to alter …
Sources To Seafood: Mercury Pollution In The Marine Environment, Celia Y. Chen, Charles T. Driscoll, Kathleen F. Lambert, Robert P. Mason, Laurie R. Rardin, Catherine V. Schmitt, N. S. Serrell, Elsie M. Sunderland
Sources To Seafood: Mercury Pollution In The Marine Environment, Celia Y. Chen, Charles T. Driscoll, Kathleen F. Lambert, Robert P. Mason, Laurie R. Rardin, Catherine V. Schmitt, N. S. Serrell, Elsie M. Sunderland
Maine Sea Grant Publications
In 2010, the Toxic Metals Superfund Research Program at Dartmouth College brought together a group of 50 scientists and policy stakeholders to form C-MERC, the Coastal and Marine Mercury Ecosystem Research Collaborative. The goal was to review current knowledge—and knowledge gaps—relating to a global environmental health problem, mercury contamination of the world’s marine fish. C-MERC participants attended two workshops over a two-year period, and in 2012 C-MERC authors published a series of peer-reviewed papers in the journals Environmental Health Perspectives and Environmental Research that elucidated key processes related to the inputs, cycling, and uptake of mercury in marine ecosystems, effects …
Logistic Curves, Extraction Costs And Peak Oil, Robert J. Brecha
Logistic Curves, Extraction Costs And Peak Oil, Robert J. Brecha
Physics Faculty Publications
Debates about the possibility of a near-term maximum in world oil production have become increasingly prominent over the past decade, with the focus often being on the quantification of geologically available and technologically recoverable amounts of oil in the ground. Economically, the important parameter is not a physical limit to resources in the ground, but whether market price signals and costs of extraction will indicate the efficiency of extracting conventional or nonconventional resources as opposed to making substitutions over time for other fuels and technologies. We present a hybrid approach to the peak-oil question with two models in which the …
Shoreline Evolution: City Of Virginia Beach, Virginia, Chesapeake Bay, Lynnhaven River, Broad Bay, And Atlantic Ocean Shorelines, Donna A. Milligan, Christine Wilcox, C. Scott Hardaway Jr., Mary C. Cox
Shoreline Evolution: City Of Virginia Beach, Virginia, Chesapeake Bay, Lynnhaven River, Broad Bay, And Atlantic Ocean Shorelines, Donna A. Milligan, Christine Wilcox, C. Scott Hardaway Jr., Mary C. Cox
Reports
The City of Virginia Beach is situated along both the Atlantic Ocean and Chesapeake Bay (Figure 1). Through time, the City’s shoreline has evolved, and determining the rates and patterns of shore change provides the basis to know how a particular coast has changed through time and how it might proceed in the future.Along Chesapeake Bay’s estuarine shores, winds, waves, tides and currents shape and modify coastlines by eroding, transporting and depositing sediments.
The purpose of this report is to document how the shore zone of the City of Virginia Beach has evolved since 1937. Aerial imagery was taken for …
Divergent Carbon Dynamics Under Climate Change In Forests With Diverse Soils, Tree Species, And Land Use Histories, Robert M. Scheller, Alec M. Kretchun, Steve Van Tuyl, Kenneth L. Clark, Melissa S. Lucash, John Hom
Divergent Carbon Dynamics Under Climate Change In Forests With Diverse Soils, Tree Species, And Land Use Histories, Robert M. Scheller, Alec M. Kretchun, Steve Van Tuyl, Kenneth L. Clark, Melissa S. Lucash, John Hom
Environmental Science and Management Faculty Publications and Presentations
Accounting for both climate change and natural disturbances—which typically result in greenhouse gas emissions—is necessary to begin managing forest carbon sequestration. Gaining a complete understanding of forest carbon dynamics is, however, challenging in systems characterized by historic over-utilization, diverse soils and tree species, and frequent disturbance. In order to elucidate the cascading effects of potential climate change on such systems, we projected forest carbon dynamics, including soil carbon changes, and shifts in tree species composition as a consequence of wildfires and climate change in the New Jersey pine barrens (NJPB) over the next 100 years. To do so, we used …
U.S. Drought Monitor, November 27, 2012, Eric Luebehusen
U.S. Drought Monitor, November 27, 2012, Eric Luebehusen
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for November 27, 2012 (11/27/12) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Hay, Cattle, Winter wheat.
Agricultural Advisors: A Receptive Audience For Weather And Climate Information?, Linda Stalker Prokopy, Tonya Haigh, Amber Saylor Mase, Jim Angel, Chad Hart, Cody Knutson, Maria Carmen Lemos, Yun Jia Lo, Jean Mcguire, Lois Wright Morton, Jennifer Perron, Dennis Todey, Melissa Widhalm
Agricultural Advisors: A Receptive Audience For Weather And Climate Information?, Linda Stalker Prokopy, Tonya Haigh, Amber Saylor Mase, Jim Angel, Chad Hart, Cody Knutson, Maria Carmen Lemos, Yun Jia Lo, Jean Mcguire, Lois Wright Morton, Jennifer Perron, Dennis Todey, Melissa Widhalm
Drought Mitigation Center: Faculty Publications
As the climate in the midwestern United States becomes increasingly variable because of global climate change, it is critical to provide tools to the agricultural community to ensure adaptability and profitability of agricultural cropping systems. When used by farmers and their advisors, agricultural decision support tools can reduce uncertainty and risks in the planning, operation, and management decisions of the farm enterprise. Agricultural advisors have historically played a key role in providing information and guidance in these decisions. However, little is known about what these advisors know or think about weather and climate information and their willingness to incorporate this …
U.S. Drought Monitor, November 20, 2012, Eric Luebehusen
U.S. Drought Monitor, November 20, 2012, Eric Luebehusen
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for November 20, 2012 (11/20/12) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Hay, Cattle, Winter wheat.
U.S. Drought Monitor, November 13, 2012, David Miskus
U.S. Drought Monitor, November 13, 2012, David Miskus
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for November 13, 2012 (11/13/12) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Hay, Cattle, Winter wheat.
U.S. Drought Monitor, November 6, 2012, David Miskus
U.S. Drought Monitor, November 6, 2012, David Miskus
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for November 6, 2012 (11/6/12) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Hay, Cattle, Winter wheat.
Point Source And Non-Point Source Pollution In A Secondary Stream: Nutrient Concentration And Fecal Microbe Counts In Tates Creek, Madison County, Kentucky, Walter S. Borowski, Krisopher H. Carroll, Bethany Gabbard
Point Source And Non-Point Source Pollution In A Secondary Stream: Nutrient Concentration And Fecal Microbe Counts In Tates Creek, Madison County, Kentucky, Walter S. Borowski, Krisopher H. Carroll, Bethany Gabbard
EKU Faculty and Staff Scholarship
Nutrient concentration and fecal microbe counts are elevated in Tates Creek, a stream that emanates from the town of Richmond, KY, passes by a conventional sewage treatment plant that discharges into the stream, and winds for 13 miles through pastureland and a series of small communities on septic systems before entering the Kentucky River. The sewage treatment plant shut-down operations during our study and we monitored dissolved nutrients (ammonium, nitrate, and phosphate), fecal microbes (total coliform and Escherichia coli), and stream biota before and after treatment operations ceased. Sampling occurred 4 times in both 2011 and 2012 between May …
2011 Chesapeake Bay Sav Coverage, Sav Data Administrator, Virginia Institute Of Marine Science
2011 Chesapeake Bay Sav Coverage, Sav Data Administrator, Virginia Institute Of Marine Science
Data
Abstract: The 2011 Chesapeake Bay SAV Coverage was mapped from 1:24,000 black and white aerial photography to assess water quality in the Bay. Each area of SAV was interpreted from the rectified photography and classified into one of four density classes by the percentage of cover. The SAV beds were entered into an SDE GIS fetaure class using the quality control procedures documented below. The dataset contains all SAV areas that were identified from the areas flown. Some areas that are presumed to contain no SAV were not flown. Some small beds, particularly along narrow tributaries may not have been …
U.S. Drought Monitor, October 30, 2012, Michael J. Brewer, Liz Love-Brotak
U.S. Drought Monitor, October 30, 2012, Michael J. Brewer, Liz Love-Brotak
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for October 30, 2012 (10/30/12) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Hay, Cattle, Winter wheat.
U.S. Drought Monitor, October 16, 2012, Matthew Rosencrans
U.S. Drought Monitor, October 16, 2012, Matthew Rosencrans
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for October 16, 2012 (10/16/12) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Hay, Cattle, Winter wheat.
U.S. Drought Monitor, October 9, 2012, Matthew Rosencrans
U.S. Drought Monitor, October 9, 2012, Matthew Rosencrans
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for October 9, 2012 (10/9/12) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Hay, Cattle, Winter wheat.
U.S. Drought Monitor, October 2, 2012, Anthony Artusa
U.S. Drought Monitor, October 2, 2012, Anthony Artusa
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for October 2, 2012 (10/2/2012) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Hay, Cattle, Winter wheat.
Drinking Water Resource Directory, New England Environmental Finance Center
Drinking Water Resource Directory, New England Environmental Finance Center
Sustainable Communities Capacity Building
This document is intended to help local and regional planning agencies, and their constituent water utilities, integrate drinking water infrastructure planning and investments into plans for sustainable development. Resources listed here provide guidance on making land use decisions that protect water resources, setting adequate and sustainable drinking water rates, controlling water loss, funding water infrastructure projects, and managing water utilities.
The directory was developed by the Environmental Finance Center Network through the Capacity Building for Sustainable Communities program funded by the U.S. Department of Housing and Urban Development and the Environmental Protection Agency. Through this program, EFCN is providing capacity …
Droughtscape- Fall 2012, National Drought Mitigation Center
Droughtscape- Fall 2012, National Drought Mitigation Center
Droughtscape, Quarterly Newsletter of NDMC, 2007-
CONTENTS
Director’s report ....................... 1
Updated resources ................... 1
Drought outlook and review... 2
2012 and past droughters..... 4
Summer impacts summary.... 6
Urban planners and drought..... 9
USDM wins CLEAN seal... 10
Meixiu Yu's Chinese SPEI... 11
Ethiopian project..... 12
Mexican VegDRI.... 13
Drought monitor sculpture.... 14
Chemical Properties Of Forest Soils In The Catskills Region, Chris E. Johnson
Chemical Properties Of Forest Soils In The Catskills Region, Chris E. Johnson
Civil and Environmental Engineering
No abstract provided.
Economics Of Nuclear Power And Climate Change Mitigation Policies, Nico Bauer, Robert J. Brecha, Gunnar Luderer
Economics Of Nuclear Power And Climate Change Mitigation Policies, Nico Bauer, Robert J. Brecha, Gunnar Luderer
Physics Faculty Publications
The events of March 2011 at the nuclear power complex in Fukushima, Japan, raised questions about the safe operation of nuclear power plants, with early retirement of existing nuclear power plants being debated in the policy arena and considered by regulators. Also, the future of building new nuclear power plants is highly uncertain. Should nuclear power policies become more restrictive, one potential option for climate change mitigation will be less available. However, a systematic analysis of nuclear power policies, including early retirement, has been missing in the climate change mitigation literature. We apply an energy economy model framework to derive …
City Of Virginia Beach, Virginia Shoreline Inventory Report Methods And Guidelines, Marcia Berman, Harry Berquist, Sharon Killeen, Carl Hershner, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt
City Of Virginia Beach, Virginia Shoreline Inventory Report Methods And Guidelines, Marcia Berman, Harry Berquist, Sharon Killeen, Carl Hershner, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt
Reports
The data inventory developed for the Shoreline Inventory is based on a three tiered shoreline assessment approach. In most cases this assessment characterizes conditions that can be observed from a small boat navigating along the shoreline. The three tiered shoreline assessment approach divides the shorezone into three regions:
1 ) the immediate riparian zone, evaluated for land use; 2 ) the bank, evaluated for height, stability, cover and natural protection; and 3 ) the shoreline, describing the presence of shoreline structures for shore protection and recreational purposes. A combination of handheld GPS units and GPS registered videography were used to …
A Comparison Study Of A Bird Population In Lake Alaotra: The Effects Of A Protected Area, Sonya R. Kaufman
A Comparison Study Of A Bird Population In Lake Alaotra: The Effects Of A Protected Area, Sonya R. Kaufman
Independent Study Project (ISP) Collection
Lake Alaotra, the largest lake in Madagascar, is well known for its diverse plant and animal communities. It is home to three critically endangered endemic species, the Alaotran gentle lemur (Hapelemur griseus alaotrensis), Alaotra Little Grebe (Tachybaptus rufolavatus), and Madagascar pochard (Aythya innotata). Widespread habitat destruction by fire and clear-cutting is destroying the marshland vegetation of the lake, and siltation from erosion runoff and rice field creation is resulting in the ever-decreasing size of the lake. This study looked at the effectiveness of the protected area, Park Bandro, in preserving species diversity, relative abundances, …
A Comparison Of Qualitative And Quantitative Ecological Assessment Methods Of Mangroves In Southwestern Madagascar, Sondra Winders
A Comparison Of Qualitative And Quantitative Ecological Assessment Methods Of Mangroves In Southwestern Madagascar, Sondra Winders
Independent Study Project (ISP) Collection
Mangroves are unique, tropical, intertidal forests that, among many other important functions, serve as large carbon sinks for the sequestration of atmospheric CO2. This project qualitatively assessed the mangrove forest of Honko Mangrove Conservation and Education (Tulear, Madagascar) in conjunction with Blue Ventures for a proposed Plan Vivo carbon stock project. The qualitative results were then compared with quantitative measurements in order to determine the most effective method of ecological assessment. Sixty-three stands of mangrove forest covering 9.72km2 were identified and mapped. Level of harvest, species composition, density, canopy cover, dominant height, dominant DBH, forest condition and composition were compared …
Nevada Interagency Volunteer Program: Helping Hands Across Public Lands - Phase Ii: Quaterly Progress Report, Period Covering July 1, 2012 To September 30, 2012, Margaret N. Rees
Nevada Interagency Volunteer Program: Helping Hands Across Public Lands - Phase Ii: Quaterly Progress Report, Period Covering July 1, 2012 To September 30, 2012, Margaret N. Rees
Get Outdoors Nevada
- The number of records in the volunteer database is 8,511, an increase from 8,308 in July.
- Results show an average of 1,094 visits per month, and an average of 2,729 pages viewed per month.
- Get Outdoors Nevada supp01ied 6 volunteer events in a variety of ways. These events utilized 214 volunteers whom contributed approximately 856 hours of service.
- The team continues planning an alternative bus tour.
- The team rolled out their media plan .
- The IVP team has continued planning for the annual volunteer recognition banquet.
- No volunteer trainings were conducted this quarter, but two are planned for next quarter.