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1345 full-text articles. Page 1 of 50.

Techno-Economic Approach For Solar Energy Concept Onboard Marine Vehicles, Ibrahim S. Seddiek 2017 Arab Academy for Science, Technology & Maritime Transport

Techno-Economic Approach For Solar Energy Concept Onboard Marine Vehicles, Ibrahim S. Seddiek

MARENER 2017

No abstract provided.


U.S. Drought Monitor, January 17, 2017, Richard Tinker 2017 NOAA/NWS/NCEP/CPC

U.S. Drought Monitor, January 17, 2017, Richard Tinker

US Ag in Drought Archive

Drought map of U.S. for January 17, 2017 (1/17/17) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


U.S. Drought Monitor, January 10, 2017, David Miskus 2017 NOAA/NWS/NCEP/CPC

U.S. Drought Monitor, January 10, 2017, David Miskus

US Ag in Drought Archive

Drought map of U.S. for January 10, 2017 (1/10/17) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


The Irreversible Momentum Of Clean Energy, Barack Obama 2017 President of the United States

The Irreversible Momentum Of Clean Energy, Barack Obama

US Department of Energy Publications

The release of carbon dioxide (CO2) and other greenhouse gases (GHGs) due to human activity is increasing global av-erage surface air temperatures, disrupting weather patterns, and acidifying the ocean (1). Left unchecked, the continued growth of GHG emissions could cause global average tem-peratures to increase by another 4°C or more by 2100 and by 1.5 to 2 times as much in many midcontinent and far northern locations (1). Although our understanding of the impacts of climate change is increasingly and disturbingly clear, there is still debate about the proper course for U.S. policy—a debate that is ...


U.S. Drought Monitor, January 3, 2017, David Miskus 2017 NOAA/NWS/NCEP/CPC

U.S. Drought Monitor, January 3, 2017, David Miskus

US Ag in Drought Archive

Drought map of U.S. for January 3, 2017 (1/3/17) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


Detecting Spatial Regimes In Ecosystems, Shana M. Sundstrom, Tarsha Eason, R. John Nelson, David G. Angeler, Chris Barichievy, Ahjond S. Garmestani, Nicholas A.J. Graham, Dean Granholm, Lance Gunderson, Melinda Knutson, Kirsty L. Nash, Trisha Spanbauer, Craig A. Stow, Craig R. Allen 2017 University of Nebraska-Lincoln

Detecting Spatial Regimes In Ecosystems, Shana M. Sundstrom, Tarsha Eason, R. John Nelson, David G. Angeler, Chris Barichievy, Ahjond S. Garmestani, Nicholas A.J. Graham, Dean Granholm, Lance Gunderson, Melinda Knutson, Kirsty L. Nash, Trisha Spanbauer, Craig A. Stow, Craig R. Allen

Papers in Natural Resources

Research on early warning indicators has generally focused on assessing temporal transitions with limited application of these methods to detecting spatial regimes. Traditional spatial boundary detection procedures that result in ecoregion maps are typically based on ecological potential (i.e. potential vegetation), and often fail to account for ongoing changes due to stressors such as land use change and climate change and their effects on plant and animal communities. We use Fisher information, an information theory-based method, on both terrestrial and aquatic animal data (U.S. Breeding Bird Survey and marine zooplankton) to identify ecological boundaries, and compare our results ...


Effects Of Climate Change And Anthropogenic Modification On A Disturbance-Dependent Species In A Large Riverine System, Sara L. Zeigler, Daniel H. Catlin, Mary Bomberger Brown, James D. Fraser, Lauren R. Dinan, Kelsi L. Hunt, Joel G. Jorgensen, Sarah M. Karpanty 2017 United States Geological Survey

Effects Of Climate Change And Anthropogenic Modification On A Disturbance-Dependent Species In A Large Riverine System, Sara L. Zeigler, Daniel H. Catlin, Mary Bomberger Brown, James D. Fraser, Lauren R. Dinan, Kelsi L. Hunt, Joel G. Jorgensen, Sarah M. Karpanty

Papers in Natural Resources

Humans have altered nearly every natural disturbance regime on the planet through climate and land-use change, and in many instances, these processes may have interacting effects. For example, projected shifts in temperature and precipitation will likely influence disturbance regimes already affected by anthropogenic fire suppression or river impoundments. Understanding how disturbance-dependent species respond to complex and interacting environmental changes is important for conservation efforts. Using field-based demographic and movement rates, we conducted a metapopulation viability analysis for piping plovers (Charadrius melodus), a threatened disturbance-dependent species, along the Missouri and Platte rivers in the Great Plains of North America. Our aim ...


A Photosynthesis-Based Two-Leaf Canopy Stomatal Conductance Model For Meteorology And Air Quality Modeling With Wrf/Cmaq Px Lsm, Limei Ran, Jonathan Pleim, Conghe Song, Larry Band, John T. Walker, Francis S. Binkowski 2017 United States Environmental Protection Agency

A Photosynthesis-Based Two-Leaf Canopy Stomatal Conductance Model For Meteorology And Air Quality Modeling With Wrf/Cmaq Px Lsm, Limei Ran, Jonathan Pleim, Conghe Song, Larry Band, John T. Walker, Francis S. Binkowski

U.S. Environmental Protection Agency Papers

A coupled photosynthesis-stomatal conductance model with single-layer sunlit and shaded leaf canopy scaling is implemented and evaluated in a diagnostic box model with the Pleim-Xiu land surface model (PX LSM) and ozone deposition model components taken directly from the meteorology and air quality modeling system—WRF/CMAQ (Weather Research and Forecast model and Community Multiscale Air Quality model). The photosynthesis-based model for PX LSM (PX PSN) is evaluated at a FLUXNET site for implementation against different parameterizations and the current PX LSM approach with a simple Jarvis function (PX Jarvis). Latent heat flux (LH) from PX PSN is further evaluated ...


Weight Of Evidence Evaluation Of A Network Of Adverse Outcome Pathways Linking Activation Of The Nicotinic Acetylcholine Receptor In Honey Bees To Colony Death, Carlie A. LaLone, Daniel L. Villeneuve, Judy Wu-Smart, Rebecca Y. Milsk, Keith Sappington, Kristina V. Garber, Justin Housenger, Gerald T. Ankley 2017 U.S. Environmental Protection Agency

Weight Of Evidence Evaluation Of A Network Of Adverse Outcome Pathways Linking Activation Of The Nicotinic Acetylcholine Receptor In Honey Bees To Colony Death, Carlie A. Lalone, Daniel L. Villeneuve, Judy Wu-Smart, Rebecca Y. Milsk, Keith Sappington, Kristina V. Garber, Justin Housenger, Gerald T. Ankley

U.S. Environmental Protection Agency Papers

Ongoing honey bee (Apis mellifera) colony losses are of significant international concern because of the essential role these insects play in pollinating crops. Both chemical and non-chemical stressors have been implicated as possible contributors to colony failure; however, the potential role(s) of commonly-used neonicotinoid insecticides has emerged as particularly concerning. Neonicotinoids act on the nicotinic acetylcholine receptors (nAChRs) in the central nervous system to eliminate pest insects. However, mounting evidence indicates that neonicotinoids also may adversely affect beneficial pollinators, such as the honey bee, via impairments on learning and memory, and ultimately foraging success. The specificmechanisms linking activation of ...


Review Of A Chorus Of Cranes: The Cranes Of North America And The World By Paul A. Johnsgard, Aaron T. Pearse 2017 U.S. Geological Survey

Review Of A Chorus Of Cranes: The Cranes Of North America And The World By Paul A. Johnsgard, Aaron T. Pearse

USGS Staff -- Published Research

Cranes (Gruidae) are widely distributed throughout the world, have lived on Earth for several million years, and currently reside on five continents. Archaeological evidence and historical references suggest that humans have interacted with and been captivated by cranes for many thousands of years (e.g., Leslie 1988, Muellner 1990). A glimpse of our reverence for these birds can be found in A Chorus of Cranes by Paul A. Johnsgard, with photographs by Thomas D. Mangelsen. Many species of cranes are currently identified as threatened or endangered, and their future will likely rest in the hands of humans; this book presents ...


Plant Uptake And Stream Chemistry Set Global Bounds On Nitrogen Gas Emissions From Humid Tropical Forests, E.N.J. Brookshire, S. Gerber, W. Greene, R.A. Jones, Steven A. Thomas 2017 Montana State University-Bozeman

Plant Uptake And Stream Chemistry Set Global Bounds On Nitrogen Gas Emissions From Humid Tropical Forests, E.N.J. Brookshire, S. Gerber, W. Greene, R.A. Jones, Steven A. Thomas

Papers in Natural Resources

Denitrification and hydrologic leaching are the two major pathways by which nitrogen is lost from the terrestrial biosphere. Humid tropical forests are thought to dominate denitrification from unmanaged lands globally, but there is large uncertainty about the range and key drivers of total N gas emissions across the biome. We combined pantropical measures of small watershed stream chemistry with ecosystem modeling to determine total nitrogen gas losses and associated uncertainty across humid tropical forests. Our calculations reveal that denitrification in soils and along hydrologic flowpaths contributes on average >45% of total watershed N losses. However, when denitrification occurs exclusively in ...


Ungulate Predation And Ecological Roles Of Wolves And Coyotes In Eastern North America, John F. Benson, Karen M. Loveless, Linda Y. Rutledge, Brent R. Patterson 2017 Trent University

Ungulate Predation And Ecological Roles Of Wolves And Coyotes In Eastern North America, John F. Benson, Karen M. Loveless, Linda Y. Rutledge, Brent R. Patterson

Papers in Natural Resources

Understanding the ecological roles of species that influence ecosystem processes is a central goal of ecology and conservation biology. Eastern coyotes (Canis latrans) have ascended to the role of apex predator across much of eastern North America since the extirpation of wolves (Canis spp.) and there has been considerable confusion regarding their ability to prey on ungulates and their ecological niche relative to wolves. Eastern wolves (C. lycaon) are thought to have been the historical top predator in eastern deciduous forests and have previously been characterized as deer specialists that are inefficient predators of moose because of their smaller size ...


Abstract Template Resrb 2017, Wojciech M. Budzianowski 2016 Wroclaw University of Technology

Abstract Template Resrb 2017, Wojciech M. Budzianowski

Wojciech Budzianowski

No abstract provided.


Order Form Resrb 2017, Wojciech M. Budzianowski 2016 Wroclaw University of Technology

Order Form Resrb 2017, Wojciech M. Budzianowski

Wojciech Budzianowski

No abstract provided.


C.V., Wojciech M. Budzianowski 2016 Wroclaw University of Technology

C.V., Wojciech M. Budzianowski

Wojciech Budzianowski

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U.S. Drought Monitor, December 27, 2016, Brad Rippey 2016 USDA

U.S. Drought Monitor, December 27, 2016, Brad Rippey

US Ag in Drought Archive

Drought map of U.S. for December 27, 2016 (12/27/16) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


Willingness To Pay Today For A Cleaner Tomorrow, Yukihira Naoe 2016 University of Nebraska-Lincoln

Willingness To Pay Today For A Cleaner Tomorrow, Yukihira Naoe

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

To a ten year old boy on a tedious trip across the country side, few views are more fascinating than a wind farm. Massive turbines spin slowly as if to emphasize their preposterous size and magnificence. In an era where increasing global attention is brought to climate change, renewable energy is carving its way into the minds of billions. This once free roadside attraction is now something that in the near future, we must pay and patronize, and this is where my literature begins, how willing are we to pay for renewable energy? Are you willing to pay to give ...


Solar, Why Not?, Emily Hergenrader 2016 University of Nebraska-Lincoln

Solar, Why Not?, Emily Hergenrader

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

Imagine yourself standing outside for an hour wearing a black shirt on a 90-degree day. Now touch your shirt. Notice how warm it is? This warming is due to the sun’s energy. According to Daniel Nocera, a member of the Division of Chemistry at the Massachusetts Institute of Technology, that same heat from one hour of sun exposure is more energy than all of the energy consumed by humans in an entire year.

Energy is one of the hottest topics debated in our world today. Human existence on Earth depends on energy usage and the availability of its consumption ...


Independent Energy, Ian Hall 2016 University of Nebraska-Lincoln

Independent Energy, Ian Hall

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

In the world of energy, an elite selection of the world’s most influential leaders dictates the development of the world. The correlation between petroleum production and global influence is hard to ignore. The world needs energy to move and those with the energy control the movement. Saudi Arabia, Russia, and the US combine to contribute over a third of world oil production. OPEC countries however, dominate the vast energy markets around the world. Well inundated with regional conflict and hostile relations, OPEC countries remain volatile and on top of global energy production.

The energy industry has become extremely productive ...


The Clean Power Plan And How It Will Change History, Abbie Andersen 2016 University of Nebraska-Lincoln

The Clean Power Plan And How It Will Change History, Abbie Andersen

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

In a country where 30% of the population still believes that man made climate change is a myth, president Obama has made a daring effort to help fix the damage our country has already inflicted on our planet. By creating The Clean Power Plan (CPP) we’ve taken a step in the right direction as a country. The action that we take to limit our emissions within the next 10 years will likely determine the course of the rest of our existence.

In our current situation humanity has no choice other than to act, and act quickly. We have passed ...


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