Ten Reasons To Take Peak Oil Seriously,
2013
University of Dayton
Ten Reasons To Take Peak Oil Seriously, Robert Brecha
Physics Faculty Publications
Forty years ago, the results of modeling, as presented in The Limits to Growth, reinvigorated a discussion about exponentially growing consumption of natural resources, ranging from metals to fossil fuels to atmospheric capacity, and how such consumption could not continue far into the future. Fifteen years earlier, M. King Hubbert had made the projection that petroleum production in the continental United States would likely reach a maximum around 1970, followed by a world production maximum a few decades later. The debate about “peak oil," as it has come to be called, is accompanied by some of the same vociferous …
U.S. Drought Monitor, January 29, 2013,
2013
National Drought Mitigation Center/University of Nebraska-Lincoln
U.S. Drought Monitor, January 29, 2013, Mark D. Svoboda
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for January 29, 2013 (1/29/13) 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.
Effects Of Molecular Structure Of The Oxidation Products Of Reactive Atmospheric Hydrocarbons On The Formation Of Secondary Organic Particulate Matter, Including The Effects Of Water,
2013
Portland State University
Effects Of Molecular Structure Of The Oxidation Products Of Reactive Atmospheric Hydrocarbons On The Formation Of Secondary Organic Particulate Matter, Including The Effects Of Water, Negar Niakan
Dissertations and Theses
Organic aerosols have significant effects on human health, air quality and climate. Secondary organic aerosols (SOA) are produced by the oxidation of primary-volatile organic compounds (VOC). For example, α-pinene reacts with oxidants such as hydroxyl radical (OH), ozone (O3), and nitrate radical (NO3), accounting for a significant portion of total organic aerosol in the atmosphere. Experimental studies have shown that the oxidation process between α-pinene and ozone has the most significant impact in the formation of SOA (Hoffmann et al., 1997). Most of the models used to predict SOA formation, however, are limited in that they …
U.S. Drought Monitor, January 22, 2013,
2013
National Drought Mitigation Center/University of Nebraska-Lincoln
U.S. Drought Monitor, January 22, 2013, Mark D. Svoboda
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for January 22, 2013 (1/22/13) 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, January 15, 2013,
2013
Western Regional Climate Center
U.S. Drought Monitor, January 15, 2013, David Simeral
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for January 15, 2013 (1/15/13) 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, January 8, 2013,
2013
Western Regional Climate Center
U.S. Drought Monitor, January 8, 2013, David Simeral
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for January 8, 2013 (1/8/13) 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.
Long-Term Agro-Ecosystem Research (Ltar) Network To Establish The Platte River – High Plains Aquifer Ltar,
2013
Soil and Water Conservation Research Unit, USDA-ARS
Long-Term Agro-Ecosystem Research (Ltar) Network To Establish The Platte River – High Plains Aquifer Ltar, Brian J. Wienhold, Tala Awada
School of Natural Resources: Faculty Publications
The University of Nebraska-Lincoln (UNL), the USDA-ARS Agro-ecosystem Management Research Unit (AMRU) in Lincoln, and Environmental Management Research Unit (EMRU) in Clay Center propose to establish a Long-term Agro-ecosystem Research (LTAR) Network site with a focus on the northern portion of the High Plains Aquifer. Over 95 percent of the water withdrawn from the aquifer is for agricultural use, and – unlike the portion of the aquifer underlying southern Kansas, Oklahoma, and Texas where significant drawdown has occurred – ground water levels have remained relatively stable since 1960. However, this stability might be in jeopardy with projected climate variability and …
The Importance Of Spring And Autumn Atmospheric Conditions For The Evaporation Regime Of Lake Superior,
2013
Environment Canada, Saskatoon, Saskatchewan
The Importance Of Spring And Autumn Atmospheric Conditions For The Evaporation Regime Of Lake Superior, Christopher Spence, P.D. Blanken, John D. Lenters, N. Hedstrom
School of Natural Resources: Faculty Publications
Feedbacks between ice extent and evaporation have long been suspected to be important for Lake Superior evaporation because it is during autumn and winter when latent heat fluxes are highest. Recent direct measurements of evaporation made at the Stannard Rock Lighthouse have provided new information on the physical controls on Lake Superior evaporation, in particular that evaporation can react within hours to days to a change in synoptic conditions. However, the large heat capacity of the lake creates a strong seasonal cycle of energy storage and release. There is a complex interaction among heat storage, evaporation, and ice cover that …
Aspects Of Northern Bobwhite Ecology On South Florida Rangeland.,
2013
School of Natural Resources
Aspects Of Northern Bobwhite Ecology On South Florida Rangeland., J. A. Martin, W. E. Palmer, Carroll J. P.
School of Natural Resources: Faculty Publications
Abstract During 2004 and 2005, we monitored breeding season survival, home range, habitat use, density, and reproduction of northern bobwhite (Colinus virginianus) in the peninsular region of Florida, USA. We radio-tagged 81 birds across a 20-km2 cattle ranch consisting predominately of rotationally grazed pastureland. Birds were radio-tracked three to five times per week until mortality or the transition to nonbreeding season. We found no difference in home range size among the sexes, ages, or their interaction. Mean home range size pooled for years, sexes, and age class was 56.28 ha (±7.87 SE). Home ranges of bobwhites were not distributed among …
Overwinter Mortality Of Sympatric Juvenile Bluegill And Yellow Perch In Mid-Temperate Prairie Lakes,
2013
South Dakota State University
Overwinter Mortality Of Sympatric Juvenile Bluegill And Yellow Perch In Mid-Temperate Prairie Lakes, Jeffrey C. Jolley, Mark A. Kaemingk, David W. Willis, Richard S. Holland
School of Natural Resources: Faculty Publications
Substantial mortality can occur in age-0 fish populations during their first year of life, especially in winter; this can potentially influence overall recruitment into the adult population. As such, we compared relative abundances between fall and spring catches of sympatric juvenile bluegill Lepomis macrochirus Rafinesque and yellow perch Perca flavescens (Mitchill) to evaluate the magnitude of overwinter mortality across locations (five lakes for two years) and through time (one lake for six years). In addition, we compared both quantile-quantile and increment plots, based on length-frequency histograms from fall- and spring-caught cohorts from 2004 to 2010, to determine if mortality was …
Pressures To Publish: Catalysts For The Loss Of Scientific Writing Integrity?,
2013
South Dakota State University
Pressures To Publish: Catalysts For The Loss Of Scientific Writing Integrity?, Cari-Ann Hayer, Mark A. Kaemingk, Jason J. Breeggemann, Daniel Dembkowski, David Deslauriers, Tobias Rapp
School of Natural Resources: Faculty Publications
Publishing research is the final step in the scientific process and is used as the primary means for disseminating research findings to the scientific community. Publishing can embody many personal motivations (e.g., gratification, seeing a finished product in print, desire to further science) for authors as well as professional benefits (e.g., promotion, tenure, future funding opportunities). As the scientific workforce and competition for jobs and funding increase, publishing productivity has become a driving factor for many authors, which may lead to writing practices that violate integrity. In this essay, we discuss writing actions that may be considered a violation of …
Field Guide For Nebraska Aquatic Invasive Species (Fg-26),
2013
University of Nebraska - Lincoln
Field Guide For Nebraska Aquatic Invasive Species (Fg-26)
School of Natural Resources: Faculty Publications
No abstract provided.
Fostering Student Sense Making In Elementary Science Learning Environments: Elementary Teachers’ Use Of Science Curriculum Materials To Promote Explanation Construction,
2013
University of Missouri
Fostering Student Sense Making In Elementary Science Learning Environments: Elementary Teachers’ Use Of Science Curriculum Materials To Promote Explanation Construction, Laura Zangori, Cory Forbes, Mandy Biggers
School of Natural Resources: Faculty Publications
While research has shown that elementary (K-5) students are capable of engaging in the scientific practice of explanation construction, commonly-used elementary science curriculum materials may not always afford them opportunities to do so. As a result, elementary teachers must often adapt their science curriculum materials to better support students’ explanation construction and foster student sense making. However, little research has been conducted to explore if and, if so, how and why, elementary teachers modify science curriculum materials to engage students in explanation construction. We use an embedded mixed methods research design to explore elementary teachers’ (n = 45) curricular adaptations …
The Under-Ice Microbiome Of Seasonally Frozen Lakes,
2013
Uppsala University
The Under-Ice Microbiome Of Seasonally Frozen Lakes, Stefan Bertilsson, Amy Burgin, Cayelan C. Carey, Samuel B. Fey, Hans-Peter Grossart, Lorena M. Grubisic, Ian D. Jones, Georgiy Kirillin, Jay T. Lennon, Ashley Shade, Robyn L. Smyth
School of Natural Resources: Faculty Publications
Compared to the well-studied open water of the ‘‘growing’’ season, under-ice conditions in lakes are characterized by low and rather constant temperature, slow water movements, limited light availability, and reduced exchange with the surrounding landscape. These conditions interact with ice-cover duration to shape microbial processes in temperate lakes and ultimately influence the phenology of community and ecosystem processes. We review the current knowledge on microorganisms in seasonally frozen lakes. Specifically, we highlight how under-ice conditions alter lake physics and the ways that this can affect the distribution and metabolism of auto- and heterotrophic microorganisms. We identify functional traits that we …
Students Understanding Of Cells And Heredity: Patterns Of Understanding In The Context Of A Curriculum Implementation In Fifth And Seventh Grades,
2013
Michigan State University
Students Understanding Of Cells And Heredity: Patterns Of Understanding In The Context Of A Curriculum Implementation In Fifth And Seventh Grades, Dante Cisterna, Michelle Williams, Joi Merritt
School of Natural Resources: Faculty Publications
No abstract provided.
Recent Updates Of The Calibration-Free Evapotranspiration Mapping (Cremap) Method,
2013
University of Nebraska-Lincoln
Recent Updates Of The Calibration-Free Evapotranspiration Mapping (Cremap) Method, Jozsef Szilagyi
School of Natural Resources: Faculty Publications
No abstract provided.
Modeling The Production Of Multiple Ecosystem Services From Agricultural And Forest Landscapes In Rhode Island,
2013
University of Nebraska-Lincoln
Modeling The Production Of Multiple Ecosystem Services From Agricultural And Forest Landscapes In Rhode Island, Tingting Liu, Nathaniel H. Merrill, Arthur J. Gold, Dorothy Q. Kellogg, Emi Uchida
School of Natural Resources: Faculty Publications
No abstract provided.
High Spatial Resolution Mapping Of Elevated Atmospheric Carbon Dioxide Using Airborne Imaging Spectroscopy: Radiative Transfer Modeling And Power Plant Plume Detection,
2013
University of Utah
High Spatial Resolution Mapping Of Elevated Atmospheric Carbon Dioxide Using Airborne Imaging Spectroscopy: Radiative Transfer Modeling And Power Plant Plume Detection, Philip E. Dennison, Andrew K. Thorpe, Eric R. Pardyjak, Dar A. Roberts, Yi Qi, Robert O. Green, Eliza S. Bradley, Christopher C. Funk
School of Natural Resources: Faculty Publications
No abstract provided.
Atrazine And Nitrate In Public Drinking Water Supplies And Non-Hodgkin Lymphoma In Nebraska, Usa,
2013
University of Nebraska-Lincoln
Atrazine And Nitrate In Public Drinking Water Supplies And Non-Hodgkin Lymphoma In Nebraska, Usa, Martha G. Rhoades, Jane L. Meza, Cheryl L. Beseler, Patrick J. Shea, Andy Kahle, Julie M. Vose, Kent M. Eskridge, Roy F. Spalding
School of Natural Resources: Faculty Publications
A secondary analysis of 1999–2002 Nebraska case-control data was conducted to assess the risk of non-Hodgkin lymphoma (NHL) associated with exposure to nitrate- and atrazine-contaminated drinking water. Water chemistry data were collected and weighted by well contribution and proximity of residence to water supply, followed by logistic regression to determine odds ratios (OR) and 95% confidence intervals (CI). We found no association between NHL risk and exposure to drinking water containing atrazine or nitrate alone. Risk associated with the interaction of nitrate and atrazine in drinking water was elevated (OR, 2.5; CI, 1.0–6.2). Risk of indolent B-cell lymphoma was higher …
Validation Of Noah-Simulated Soil Temperature In The North American Land
Data Assimilation System Phase 2,
2013
I. M. Systems Group, Inc
Validation Of Noah-Simulated Soil Temperature In The North American Land Data Assimilation System Phase 2, Youlong Xia, Michael Ek, Justin Sheffield, Ben Livneh, Maoyi Huang, Helin Wei, Song Feng, Lifeng Luo, Jesse Meng, Eric Wood
School of Natural Resources: Faculty Publications
Soil temperature can exhibit considerable memory from weather and climate signals and is among the most important initial conditions in numerical weather and climate models. Consequently, a more accurate long term land surface soil temperature dataset is needed to improve weather and climate simulation and prediction, and is also important for the simulation of agricultural crop yield and ecological processes. The North American Land Data Assimilation phase 2 (NLDAS-2) has generated 31 years (1979–2009) of simulated hourly soil temperature data with a spatial resolution of 1/8°. This dataset has not been comprehensively evaluated to date. Thus, the purpose of this …
