Open Access. Powered by Scholars. Published by Universities.®
Environmental Indicators and Impact Assessment Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (613)
- Department of Primary Industries and Regional Development, Western Australia (180)
- Chapman University (89)
- City University of New York (CUNY) (27)
- Eastern Kentucky University (26)
-
- University of Colorado Law School (24)
- University of Nevada, Las Vegas (21)
- SIT Graduate Institute/SIT Study Abroad (17)
- University of Southern Maine (17)
- Central Washington University (16)
- University of Arkansas, Fayetteville (16)
- University of South Florida (14)
- Western Kentucky University (11)
- Columbus State University (9)
- Missouri State University (9)
- Montclair State University (9)
- University of Kentucky (9)
- Wayne State University (9)
- California Polytechnic State University, San Luis Obispo (7)
- Portland State University (6)
- Wilfrid Laurier University (6)
- California State University, San Bernardino (5)
- Claremont Colleges (5)
- Clemson University (5)
- Purdue University (5)
- Stephen F. Austin State University (5)
- LSU New Orleans (4)
- Louisiana State University (4)
- University of San Diego (4)
- University of Texas Rio Grande Valley (4)
- Keyword
-
- Western Australia (124)
- Drought (98)
- United States (82)
- Salinity (53)
- Groundwater (44)
-
- Water quality (40)
- Climate change (35)
- Soil (29)
- Hydrology (28)
- Natural resources (25)
- Climate (24)
- Geology (21)
- Kentucky (20)
- Agriculture (18)
- Soil degradation (18)
- Vegetation (18)
- Remnant vegetation (16)
- Remote sensing (15)
- Drainage (14)
- Hydrogeology (14)
- Rangelands (14)
- Erosion (13)
- Watersheds (13)
- Evapotranspiration (12)
- GIS (12)
- Land use (12)
- Sediment (12)
- Soils (12)
- Water management (12)
- NEEFC (11)
- Publication Year
- Publication
-
- United States Agricultural Commodities in Drought Archive (219)
- National Drought Mitigation Center: Faculty Publications (135)
- DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023) (68)
- Resource management technical reports (65)
- High Plains Regional Climate Center: Staff Publications (64)
-
- Nebraska Water Center: Faculty Publications (47)
- Mathematics, Physics, and Computer Science Faculty Articles and Research (41)
- Biology, Chemistry, and Environmental Sciences Faculty Articles and Research (40)
- Natural resources published reports (33)
- EKU Faculty and Staff Scholarship (26)
- Journal of the Department of Agriculture, Western Australia, Series 4 (26)
- Dams: Water and Power in the New West (Summer Conference, June 2-4) (21)
- Prairie Post: Quarterly Newsletter of the High Plains Regional Climate Center (21)
- Publications and Research (18)
- Independent Study Project (ISP) Collection (16)
- Graduate Theses and Dissertations (12)
- Adam Liska Papers (10)
- Center for Advanced Land Management Information Technologies: Publications (10)
- Technical Bulletins (10)
- Theses and Dissertations (10)
- Bulletins 4000 - (9)
- Department of Earth and Environmental Studies Faculty Scholarship and Creative Works (9)
- Environmental Science and Geology Faculty Research Publications (9)
- Graduate Theses/Dissertations (9)
- School of Natural Resources: Dissertations, Theses, and Student Research (9)
- Masters Theses & Specialist Projects (8)
- Publications (WR) (8)
- Department of Environmental Studies: Undergraduate Student Theses (6)
- Geological Sciences Faculty Scholarship (6)
- Maine Collection (6)
- Publication Type
- File Type
Articles 421 - 450 of 1279
Full-Text Articles in Environmental Indicators and Impact Assessment
The Prairie Post Quarterly Newsletter Of The High Plains Regional Climate Center- July 2018, Natalie Umphlett, Emily Brown, Crystal J. Stiles
The Prairie Post Quarterly Newsletter Of The High Plains Regional Climate Center- July 2018, Natalie Umphlett, Emily Brown, Crystal J. Stiles
Prairie Post: Quarterly Newsletter of the High Plains Regional Climate Center
Inside this issue:
Message from the interim director........................................1
Staff spotlight...........................1
GRAINEX project......................2
Product highlights..................3
Update on regional climate conditions..................................4
GIS Portal....................................4
Regional news..........................5
Recent and upcoming travel and activities.............................6
Droughtscape, Summer 2018, National Drought Mitigation Center
Droughtscape, Summer 2018, National Drought Mitigation Center
DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)
Contents
From the director
Drought expands and intensifies
Dry down fuels fires
Tweeting #drought18
MOISST and NSMN
Caribbean planning progress
Drought observer network study
MENA teams report progress
NDMC global outreach
Climate hub workshop
On the horizon
Estimating Live Fuel Moisture In Southern California Using Remote Sensing Vegetation Water Content Proxies, Shenyue Jia, Seung Hee Kim, Son V. Nghiem, Wonhee Cho, Menas Kafatos
Estimating Live Fuel Moisture In Southern California Using Remote Sensing Vegetation Water Content Proxies, Shenyue Jia, Seung Hee Kim, Son V. Nghiem, Wonhee Cho, Menas Kafatos
Mathematics, Physics, and Computer Science Faculty Articles and Research
Wildfires are a major ecological disturbance in Southern California and often lead to great destruction along the Wildland-Urban Interface. Live fuel moisture has been used as an important indicator of wildfire risk in measurements of vegetation water content. However, the limited field measurements of live fuel moisture in both time and space have affected the accuracy of wildfire risk estimations. Traditional estimation of live fuel moisture using remote sensing data was based on vegetation indices, indirect proxies of vegetation water content and subject to influence from weather conditions. In this study, we investigated the feasibility of estimating live fuel moisture …
Tracking Drought Perspectives: A Rural Case Study Of Transformations Following An Invisible Hazard, Theresa Jedd, Deborah Bathke, Duane Gill, Bimal Paul, Nicole Wall, Tonya Bernadt, Jacob Peter, Anthony Mucia, Milan Wall
Tracking Drought Perspectives: A Rural Case Study Of Transformations Following An Invisible Hazard, Theresa Jedd, Deborah Bathke, Duane Gill, Bimal Paul, Nicole Wall, Tonya Bernadt, Jacob Peter, Anthony Mucia, Milan Wall
National Drought Mitigation Center: Faculty Publications
Rural towns are especially susceptible to the effects of drought because their economies are dependent on natural resources. However, they are also resilient in many ways to natural hazards because they are rich in civic engagement and social capital. Because of the diverse nature of drought’s impacts, understanding its complex dynamics and its effects requires a multidisciplinary approach. To study these dynamics, this research combines appreciative inquiry, the Community Capitals Framework, and a range of climatological monitoring data to assess the 2012–14 Great Plains drought’s effect on McCook, Nebraska. Community coping measures, such as water-use reduction and public health programs, …
Umphlett Qci June 2018, Natalie Umphlett
Umphlett Qci June 2018, Natalie Umphlett
High Plains Regional Climate Center: Staff Publications
Highlights for the Basin
Temperature Anomalies
Precipitation Anomalies
Water Resources
Agriculture
Temperature
Precipitation
A Quantitative Analysis Of The Effects Of Urbanization, Mesophication And Prescribed Burns On Oak Woodlands In The Chicago Metropolitan Area, Chad Populorum
A Quantitative Analysis Of The Effects Of Urbanization, Mesophication And Prescribed Burns On Oak Woodlands In The Chicago Metropolitan Area, Chad Populorum
Celebration of Learning
Urban expansion has had devastating impacts on forest ecosystems, especially within the past century. Human attempts to dominate nature have diminished natural disturbance regimes, which have maintained the biodiversity and historic composition of these ecosystems. Fires have been a prominent force in maintaining the structure of oak, hickory and other heliophytic (sun loving and fire-adapted) forest systems. Human induced fire suppression has led to mesophication across North America. Mesophication is the transition from drier conditions with open canopies to wetter conditions with closed canopies. These new conditions decrease the survival rates of these important species and begin to favor mesophytic …
Smap Soil Moisture Change As An Indicator Of Drought Conditions, Rajasekaran Eswar, Narendra N. Das, Calvin Christian Poulsen, Ali Behrangi, John Swigart, Mark D. Svoboda, Dara Entekhabi, Simon Yueh, Bradley Doorn, Jared Entin
Smap Soil Moisture Change As An Indicator Of Drought Conditions, Rajasekaran Eswar, Narendra N. Das, Calvin Christian Poulsen, Ali Behrangi, John Swigart, Mark D. Svoboda, Dara Entekhabi, Simon Yueh, Bradley Doorn, Jared Entin
National Drought Mitigation Center: Faculty Publications
Soil moisture is considered a key variable in drought analysis. The soil moisture dynamics given by the change in soil moisture between two time periods can provide information on the intensification or improvement of drought conditions. The aim of this work is to analyze how the soil moisture dynamics respond to changes in drought conditions over multiple time intervals. The change in soil moisture estimated from the Soil Moisture Active Passive (SMAP) satellite observations was compared with the United States Drought Monitor (USDM) and the Standardized Precipitation Index (SPI) over the contiguous United States (CONUS). The results indicated that the …
Radical Social Ecology As Deep Pragmatism: A Call To The Abolition Of Systemic Dissonance And The Minimization Of Entropic Chaos, Arielle Brender
Radical Social Ecology As Deep Pragmatism: A Call To The Abolition Of Systemic Dissonance And The Minimization Of Entropic Chaos, Arielle Brender
Student Theses 2015-Present
This paper aims to shed light on the dissonance caused by the superimposition of Dominant Human Systems on Natural Systems. I highlight the synthetic nature of Dominant Human Systems as egoic and linguistic phenomenon manufactured by a mere portion of the human population, which renders them inherently oppressive unto peoples and landscapes whose wisdom were barred from the design process. In pursuing a radical pragmatic approach to mending the simultaneous oppression and destruction of the human being and the earth, I highlight the necessity of minimizing entropic chaos caused by excess energy expenditure, an essential feature of systems that aim …
Adam J. Liska: Curriculum Vitae, Adam Liska
Adam J. Liska: Curriculum Vitae, Adam Liska
Adam Liska Papers
Associate Professor, George Dempster Smith Chair of Industrial Ecology, Departments of Biological Systems Engineering and Agronomy & Horticulture, University of Nebraska-Lincoln 236 L.W. Chase Hall, Lincoln, NE 68583-0726, Ph: (402) 472-8744, e-mail: [email protected]
Ph.D. 2003 Biology (magna cum laude), Max Planck Institute of Molecular Cell Biology & Genetics, Technische Universität Dresden, Dresden, Germany
An Assessment Of Atmospheric And Meteorological Factors Regulating Red Sea Phytoplankton Growth, Wenzhao Li, Hesham El-Askary, Mohamed A. Qurban, Emmanouil Proestakis, Michael J. Garay, Olga V. Kalishnikova, Vassilis Amiridis, Antonis Gkikas, Eleni Marinou, Thomas Piechota, K. P. Manikandan
An Assessment Of Atmospheric And Meteorological Factors Regulating Red Sea Phytoplankton Growth, Wenzhao Li, Hesham El-Askary, Mohamed A. Qurban, Emmanouil Proestakis, Michael J. Garay, Olga V. Kalishnikova, Vassilis Amiridis, Antonis Gkikas, Eleni Marinou, Thomas Piechota, K. P. Manikandan
Mathematics, Physics, and Computer Science Faculty Articles and Research
This study considers the various factors that regulate nutrients supply in the Red Sea. Multi-sensor observation and reanalysis datasets are used to examine the relationships among dust deposition, sea surface temperature (SST), and wind speed, as they may contribute to anomalous phytoplankton blooms, through time-series and correlation analyses. A positive correlation was found at 0–3 months lag between chlorophyll-a (Chl-a) anomalies and dust anomalies over the Red Sea regions. Dust deposition process was further examined with dust aerosols’ vertical distribution using satellite lidar data. Conversely, a negative correlation was found at 0–3 months lag between SST anomalies …
Downscaling Africa’S Drought Forecasts Through Integration Of Indigenous And Scientific Drought Forecasts Using Fuzzy Cognitive Maps, Muthoni Masinde, Mwanjele Mwagha, Tsegaye Tadesse
Downscaling Africa’S Drought Forecasts Through Integration Of Indigenous And Scientific Drought Forecasts Using Fuzzy Cognitive Maps, Muthoni Masinde, Mwanjele Mwagha, Tsegaye Tadesse
National Drought Mitigation Center: Faculty Publications
In the wake of increased drought occurrences being witnessed in Sub-Saharan Africa, more localized and contextualized drought mitigation strategies are on the agendas of many researchers and policy makers in the region. The integration of indigenous knowledge on droughts with seasonal climate forecasts is one such strategy. The main challenge facing this integration, however, is the formal representation of highly-structured and holistic indigenous knowledge. In this paper, we demonstrate how the use of fuzzy cognitive mapping can address this challenge. Indigenous knowledge on droughts from five communities was modeled and represented using fuzzy cognitive maps. Maps from one of these …
Assessing Land Deformation And Sea Encroachment In The Nile Delta, Egypt, Esayas Gebremichael
Assessing Land Deformation And Sea Encroachment In The Nile Delta, Egypt, Esayas Gebremichael
Research and Creative Activities Poster Day
Persistent scatterer interferometric analyses were conducted on a stack of 84 Envisat ASAR scenes spanning 7 years (2004 to 2010) over the entire Nile Delta of Egypt and surroundings to monitor the ongoing spatial and temporal land deformation, identify the factors controlling the deformation, and model the interplay between sea level rise and land subsidence to identify areas and populations threatened by sea encroachment by the end of the 21st century. Findings include: (1) general patterns of subsidence in the northern delta, near-steady (none) subsidence in the southern delta, separated by a previously mapped flexure zone undergoing uplift; (2) high …
Drought Drives Rapid Shifts In Tropical Rainforest Soil Biogeochemistry And Greenhouse Gas Emissions, Christine S. O'Connell, Leilei Ruan, Whendee L. Silver
Drought Drives Rapid Shifts In Tropical Rainforest Soil Biogeochemistry And Greenhouse Gas Emissions, Christine S. O'Connell, Leilei Ruan, Whendee L. Silver
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Climate change models predict more frequent and severe droughts in the humid tropics. How drought will impact tropical forest carbon and greenhouse gas dynamics is poorly understood. Here we report the effects of the severe 2015 Caribbean drought on soil moisture, oxygen, phosphorus (P), and greenhouse gas emissions in a humid tropical forest in Puerto Rico. Drought significantly decreases inorganic P concentrations, an element commonly limiting to net primary productivity in tropical forests, and significantly increases organic P. High-frequency greenhouse gas measurements show varied impacts across topography. Soil carbon dioxide emissions increase by 60% on slopes and 163% in valleys. …
Validation Of New Satellite Rainfall Products Over The Upper Blue Nile Basin, Ethiopia, Getachew Tesfaye Ayehu, Tsegaye Tadesse, Berhan Gessesse, Tufa Dinku
Validation Of New Satellite Rainfall Products Over The Upper Blue Nile Basin, Ethiopia, Getachew Tesfaye Ayehu, Tsegaye Tadesse, Berhan Gessesse, Tufa Dinku
National Drought Mitigation Center: Faculty Publications
Accurate measurement of rainfall is vital to analyze the spatial and temporal patterns of precipitation at various scales. However, the conventional rain gauge observations in many parts of the world such as Ethiopia are sparse and unevenly distributed. An alternative to traditional rain gauge observations could be satellite-based rainfall estimates. Satellite rainfall estimates could be used as a sole product (e.g., in areas with no (or poor) ground observations) or through integrating with rain gauge measurements. In this study, the potential of a newly available Climate Hazards Group Infrared Precipitation with Stations (CHIRPS) rainfall product has been evaluated in comparison …
The Prairie Post Quarterly Newsletter Of The High Plains Regional Climate Center- April 2018, Natalie Umphlett, Crystal J. Stiles, Shellie Hanneman
The Prairie Post Quarterly Newsletter Of The High Plains Regional Climate Center- April 2018, Natalie Umphlett, Crystal J. Stiles, Shellie Hanneman
Prairie Post: Quarterly Newsletter of the High Plains Regional Climate Center
Inside this issue:
Message from the interim director........................................1
Weather photo of the quarter.........................................1
Tribal climate summaries......2
Product highlights..................3
Update on regional climate conditions..................................4
State Climate Extremes Committee.................................4
Update on research................5
Recent and upcoming travel and activities.............................6
Primary Atmospheric Drivers Of Pluvial Years In The United States Great Plains, Paul Flanagan, Jeffrey B. Basara, Jason C. Furtado, Xiangming Xiao
Primary Atmospheric Drivers Of Pluvial Years In The United States Great Plains, Paul Flanagan, Jeffrey B. Basara, Jason C. Furtado, Xiangming Xiao
High Plains Regional Climate Center: Staff Publications
Precipitation variability has increased in recent decades across the Great Plains (GP) of the United States. Drought and its associated drivers have been studied in the GP region; however, periods of excessive precipitation (pluvials) at seasonal to interannual scales have received less attention. This study narrows this knowledge gap with the overall goal of understanding GP precipitation variability during pluvial periods. Through composites of relevant atmospheric variables from the ECMWF twentieth-century reanalysis (ERA-20C), key differences between southern Great Plains (SGP) and northern Great Plains (NGP) pluvial periods are highlighted. The SGP pluvial pattern shows an area of negative height anomalies …
Droughtscape, Spring 2018, National Drought Mitigation Center
Droughtscape, Spring 2018, National Drought Mitigation Center
DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)
Contents
Drought shifts to south in beginning of 2018
Ag records impacts; strong fire season forecast
Drought maps show regional and river forecast areas
Greenness indicator could save lives in Africa
NDMC on a global playing field
Visitors from Korea tap drought resources, experts
Svoboda named to United Nations advisory group
Responding to drought in the Southern Plains
Crops, cattle and climatology in the Upper Niobrara
Connecting locally for global change
Precipitation Extremes In Dynamically Downscaled Climate Scenarios Over The Greater Horn Of Africa, Andualem Shiferaw, Tsegaye Tadesse, Clinton M. Rowe, Robert Oglesby
Precipitation Extremes In Dynamically Downscaled Climate Scenarios Over The Greater Horn Of Africa, Andualem Shiferaw, Tsegaye Tadesse, Clinton M. Rowe, Robert Oglesby
National Drought Mitigation Center: Faculty Publications
This study first assesses the performance of regional climate models in the Coordinated Regional Climate Downscaling Experiment (CORDEX) in reproducing observed extreme precipitation indices over the Greater Horn of Africa (GHA) region during 1989–2005. The study then assesses projected changes in these extremes during 2069–2098 compared to 1976–2005. The Regional Climate Model (RCM) simulations are made using two RCMs, with large-scale forcing from four CMIP5 Global limate Models(GCMs) under two Representative Concentration Pathways (RCP4.5 and RCP8.5). We found that RCM simulations have reasonably captured observed patterns of moderate precipitation extreme indices (MPEI). Pattern correlation coefficients between simulated and observed MPEI …
Umphlett Qci March 2018, Natalie Umphlett
Umphlett Qci March 2018, Natalie Umphlett
High Plains Regional Climate Center: Staff Publications
Highlights for the Basin
Temperature and Precipitation Anomalies
Mountain Snowpack
Enhanced Fire Activity During Winter
Utilities Impacted by Extreme Cold
3-Month Precipitation and Temperature Outlooks
Winter Drought Conditions and Outlook
Nutrient Export From A Proximal Intermittent Stream Draining Eku Meadowbrook Farm, Madison County, Kentucky, James Scott Winter, Walter S. Borowski, Jonathan M. Malzone
Nutrient Export From A Proximal Intermittent Stream Draining Eku Meadowbrook Farm, Madison County, Kentucky, James Scott Winter, Walter S. Borowski, Jonathan M. Malzone
EKU Faculty and Staff Scholarship
Agricultural activities contribute significant amounts of nutrients that contaminate surface and subsurface water. Eastern Kentucky University (EKU) Meadowbrook Farm (Madison County, Kentucky) seeks to decrease its export of nutrients to Muddy Creek using sequestration techniques. The first step in the overall process is to determine nutrient export at present, before sequestration efforts take place. Here we estimate the export of phosphate, nitrate, and ammonium during Tropical Storm Cindy (July 22 to 24, 2017) from a proximal, intermittent stream, named the BRC. This stream drains a representative portion the Farm, receiving water from a dairy complex, pasture, and cropland.
To estimate …
Comparison Of The Performance Of Six Drought Indices In Characterizing Historical Drought For The Upper Blue Nile Basin, Ethiopia, Yared Bayissa, Shreedhar Maskey, Tsegaye Tadesse, Schalk Jan Van Andel, Semu Moges, Ann Van Griensven, Dimitri Solomatine
Comparison Of The Performance Of Six Drought Indices In Characterizing Historical Drought For The Upper Blue Nile Basin, Ethiopia, Yared Bayissa, Shreedhar Maskey, Tsegaye Tadesse, Schalk Jan Van Andel, Semu Moges, Ann Van Griensven, Dimitri Solomatine
National Drought Mitigation Center: Faculty Publications
The Upper Blue Nile (UBN) basin is less-explored in terms of drought studies as compared to other parts of Ethiopia and lacks a basin-specific drought monitoring system. This study compares six drought indices: Standardized Precipitation Index (SPI), Standardized Precipitation Evaporation Index (SPEI), Evapotranspiration Deficit Index (ETDI), Soil Moisture Deficit Index (SMDI), Aggregate Drought Index (ADI), and Standardized Runoff-discharge Index (SRI), and evaluates their performance with respect to identifying historic drought events in the UBN basin. The indices were calculated using monthly time series of observed precipitation, average temperature, river discharge, and modeled evapotranspiration and soil moisture from 1970 to 2010. …
First Assessment On The Air Co2 Dynamic In The Show Caves Of Tropical Karst, Vietnam, Duc A. Trinh, Quan H. Trinh, Angel Fernández-Cortés, David Mattey, Javier G. Guinea
First Assessment On The Air Co2 Dynamic In The Show Caves Of Tropical Karst, Vietnam, Duc A. Trinh, Quan H. Trinh, Angel Fernández-Cortés, David Mattey, Javier G. Guinea
International Journal of Speleology
In this study, air, water, and host rock in show caves in a Vietnam’s karst region was monitored and analyzed to identify the ventilation regime and track the cave air CO2 sources. In general, the studied caves are well ventilated. In dynamic – multiple entrance caves, air ventilation is described with the use of U shape model. In static – single entrance cave, air circulation is explained by cold air trap model. Both ventilation models suggest that air is more circulated in winter than in summer. Seasonally, the cave air CO2 increases from early spring to summer. Value …
Factors Influencing Farmers’ Adoption Of Best Management Practices: A Review And Synthesis, Tingting Liu, Randall J. F. Bruins, Matthew T. Heberling
Factors Influencing Farmers’ Adoption Of Best Management Practices: A Review And Synthesis, Tingting Liu, Randall J. F. Bruins, Matthew T. Heberling
National Drought Mitigation Center: Faculty Publications
Best management practices (BMPs) for reducing agricultural non-point source pollution are widely available. However, agriculture remains a major global contributor to degradation of waters because farmers often do not adopt BMPs. To improve water quality, it is necessary to understand the factors that influence BMP adoption by farmers. We review the findings of BMP adoption studies from both developed and developing countries, published after (or otherwise not included in) two major literature reviews from 2007 and 2008. We summarize the study locations, scales, and BMPs studied; the analytical methods used; the factors evaluated; and the directionality of each factor’s influence …
Developing A Remotely Sensed Drought Monitoring Indicator For Morocco, Noureddine Bijaber, Driss El Hadani, Mariam Saidi, Mark D. Svoboda, Christopher Hain, Calvin Christian Poulsen, Mohammed Yessef, Atmane Rochdi
Developing A Remotely Sensed Drought Monitoring Indicator For Morocco, Noureddine Bijaber, Driss El Hadani, Mariam Saidi, Mark D. Svoboda, Christopher Hain, Calvin Christian Poulsen, Mohammed Yessef, Atmane Rochdi
National Drought Mitigation Center: Faculty Publications
Drought is one of the most serious climatic and natural disasters inflicting serious impacts on the socio-economy of Morocco, which is characterized both by low-average annual rainfall and high irregularity in the spatial distribution and timing of precipitation across the country. This work aims to develop a comprehensive and integrated method for drought monitoring based on remote sensing techniques. The main input parameters are derived monthly from satellite data at the national scale and are then combined to generate a composite drought index presenting different severity classes of drought. The input parameters are: Standardized Precipitation Index calculated from satellite-based precipitation …
Effects Of Elevated Co2, Increased Nitrogen Deposition, And Plant Diversity On Aboveground Litter And Root Decomposition, Xiaoan Zuo, Johannes Knops
Effects Of Elevated Co2, Increased Nitrogen Deposition, And Plant Diversity On Aboveground Litter And Root Decomposition, Xiaoan Zuo, Johannes Knops
School of Biological Sciences: Faculty Publications
Global change-induced litter decomposition strongly affects the carbon (C) and nitrogen (N) dynamics in grassland ecosystems. However, few studies show the interactive effects of global change factors on litter and root decomposition. We conducted a four-year grassland field experiment to examine the quality and decomposition of litter and root in a three-factorial experiment with elevated CO2, increased N deposition, and plant species richness. We found that elevated CO2 decreased the litter N content and root lignin content. N addition increased the root N content and decreased the litter lignin content. Increasing plant richness decreased the N and …
Improving National And Regional Drought Early Warning Systems In The Greater Horn Of Africa, Tsegaye Tadesse, Nicole Wall, Michael Hayes, Mark Svoboda, Deborah `Bathke
Improving National And Regional Drought Early Warning Systems In The Greater Horn Of Africa, Tsegaye Tadesse, Nicole Wall, Michael Hayes, Mark Svoboda, Deborah `Bathke
National Drought Mitigation Center: Faculty Publications
The workshop was conducted to discuss various new and existing seasonal models and experimental drought and vegetation prediction products with experts and decision-makers representing local (private, governmental, and nongovernmental organizations), regional, and international organizations in the Greater Horn of Africa (GHA). Eighty-five participants met to discuss a strategic approach for improving drought early warning and food security systems in the GHA.
Riverbank Filtration Impacts On Post Disinfection Water Quality In Small Systems—A Case Study From Auburn And Nebraska City, Nebraska, Matteo D'Alessio, Bruce Dvorak, Chittaranjan Ray
Riverbank Filtration Impacts On Post Disinfection Water Quality In Small Systems—A Case Study From Auburn And Nebraska City, Nebraska, Matteo D'Alessio, Bruce Dvorak, Chittaranjan Ray
Nebraska Water Center: Faculty Publications
Small water systems can experience a fluctuating quality of water in the distribution system after disinfection. As chlorine is the most common disinfectant for small systems, the occurrence of disinfection byproducts (DBPs) represents a common problem for these systems. Riverbank filtration (RBF) can be a valuable solution for small communities located on riverbanks. The objectives of this study were to evaluate (i) the improvements in water quality at two selected RBF systems, and (ii) the potential lower concentrations of DBPs, in particular, trihalomethanes (THMs), in small systems that use RBF. Two small communities in Nebraska, Auburn and Nebraska City, using …
Flow Analysis Through Collector Well Laterals: A Case Study From Sonoma County Water Agency, California, Matteo D'Alessio, John Lucio, Ernest Williams, James Warner, Donald Seymour, Jay Jasperse, Chittaranjan Ray
Flow Analysis Through Collector Well Laterals: A Case Study From Sonoma County Water Agency, California, Matteo D'Alessio, John Lucio, Ernest Williams, James Warner, Donald Seymour, Jay Jasperse, Chittaranjan Ray
Nebraska Water Center: Faculty Publications
The Sonoma County Water Agency (SWCA) uses six radial collector wells along the Russian River west of Santa Rosa, to provide water for several municipalities and water districts in north-western California. Three collector wells (1, 2, and 6) are located in the Wohler area, and three collector wells (3, 4, and 5) are located in the Mirabel area. The objective of this paper is to highlight the performance of the three collector wells located in the Mirabel area since their construction. The 2015 investigation showed a lower performance of Collectors 3 and 4 compared to their original performances after construction …
Global Climate Change I-Ii, Kendall Barrett Sooter, Dione Rossiter, Costanza Rampini
Global Climate Change I-Ii, Kendall Barrett Sooter, Dione Rossiter, Costanza Rampini
Faculty Publications, Environmental Studies
Many different scientific observations and measurements indicate that Earth is experiencing global-scale changes in climate, i.e., in the long-term distributions of temperature, cloud cover, precipitation, and extreme weather events. Scientific consensus considers most these changes to be caused or accelerated by human activities. The economic, ecological, social, and cultural challenges caused by global climate change will affect everyone on the planet, and are very likely to have disproportionate impacts on developing nations. In this course, we will study global climate change from an interdisciplinary perspective, incorporating natural and social science approaches to understanding processes and effects. We will study the …
Drought And Land-Cover Conditions In The Great Plains, Heather Tollerud, Jesslyn Brown, Thomas Loveland, Rezaul Mahmood, Norman Bliss
Drought And Land-Cover Conditions In The Great Plains, Heather Tollerud, Jesslyn Brown, Thomas Loveland, Rezaul Mahmood, Norman Bliss
High Plains Regional Climate Center: Staff Publications
Land–atmosphere interactions play a critical role in the Earth system, and a better understanding of these interactions could improve weather and climate models. The interaction among drought, vegetation productivity, and land cover is of particular significance. In a semiarid environment, such as the U.S. Great Plains, droughts can have a large influence on the productivity of agriculture and grasslands, with serious environmental and economic impacts. Here, we used the vegetation drought response index (VegDRI) drought indicator to investigate the response of vegetation to weather and climate for landcover types in the Great Plains in the United States from 1989 to …