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Articles 901 - 930 of 1779
Full-Text Articles in Environmental Monitoring
U.S. Drought Monitor, August 11, 2015, Brian Fuchs
U.S. Drought Monitor, August 11, 2015, Brian Fuchs
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for August 11, 2015 (8/11/15) 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, August 4, 2015, Mark D. Svoboda
U.S. Drought Monitor, August 4, 2015, Mark D. Svoboda
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for August 4, 2015 (8/4/15) 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.
Participatory Research Workshop On Seasonal Prediction Of Hydroclimatic Extremes In The Greater Horn Of Africa, Tsegaye Tadesse, Deborah Bathke, Nicole Wall, Jacob Petr, Tonya Haigh
Participatory Research Workshop On Seasonal Prediction Of Hydroclimatic Extremes In The Greater Horn Of Africa, Tsegaye Tadesse, Deborah Bathke, Nicole Wall, Jacob Petr, Tonya Haigh
National Drought Mitigation Center: Faculty Publications
Sixty participants, including experts from seven countries from the Greater Horn of Africa (GHA) and project coinvestigators from the United States, met to discuss seasonal prediction of hydroclimatic extremes across the GHA, engage decision-makers in the assessment of information requirements, and use feedback to orient prediction models to address user needs. Perceptions of current climate change impacts in the GHA were assessed using pre- and postworkshop surveys. Participatory research was conducted through small group discussions on water, agriculture, impacts, and data sharing.
Factors Affecting Terrigenous Sedimentation In Coastal Bays With Coral Reefs: Implications For Monitoring The Effectiveness Of Watershed Restoration, Whitney Sears
Theses
In the Caribbean, sedimentation has been identified as a serious threat to coral reef communities. Although land-based sediment delivery to coastal waters harboring coral reefs occurs under natural conditions, human activities in the watersheds above reefs increases the erosion and delivery of terrigenous sediment to the reefs. Delivery of terrigenous sediment into marine areas below developed watersheds affects sedimentation rates, alters the composition and texture of sediments that are suspended in the water column, and/or sediments that are deposited on the sea floor and on corals.
St. John, U.S. Virgin Islands is an ideal location to study the effects of …
U.S. Drought Monitor, July 28, 2015, Richard R. Heim Jr.
U.S. Drought Monitor, July 28, 2015, Richard R. Heim Jr.
United States Agricultural Commodities in Drought Archive
Drought map of the United States for July 28, 2015 (7/28/15) plus: United States crop areas experiencing drought (map), an approximate percentage of crop located in drought by state (bar graph), and the percentage of crop area located in drought during the past 52 weeks (line graph) for corn, soybeans, hay, cattle, and winter wheat.
U.S. Drought Monitor, July 21, 2015, David Simeral
U.S. Drought Monitor, July 21, 2015, David Simeral
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for July 21, 2015 (7/21/15) 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, July 14, 2015, David Simeral
U.S. Drought Monitor, July 14, 2015, David Simeral
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for July 14, 2015 (7/14/15) 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, July 7, 2015, Brian Fuchs
U.S. Drought Monitor, July 7, 2015, Brian Fuchs
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for July 7, 2015 (7/7/15) 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.
Facilitating The Use Of Drought Early Warning Information Through Interactions With Agricultural Stakeholders, Jason A. Otkin, Mark Shafer, Mark Svoboda, Brian Wardlow, Martha C. Anderson, Christopher Hain, Jeffrey Basara
Facilitating The Use Of Drought Early Warning Information Through Interactions With Agricultural Stakeholders, Jason A. Otkin, Mark Shafer, Mark Svoboda, Brian Wardlow, Martha C. Anderson, Christopher Hain, Jeffrey Basara
National Drought Mitigation Center: Faculty Publications
No abstract provided.
Soil Chemistry On Watershed 1: 1998 - 2014, Chris E. Johnson
Soil Chemistry On Watershed 1: 1998 - 2014, Chris E. Johnson
Civil and Environmental Engineering - All Scholarship
No abstract provided.
Droughtscape, Summer 2015, Kelly Smith
Droughtscape, Summer 2015, Kelly Smith
DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)
Contents
Director’s column
New Drought Risk Management Research Center
Second quarter 2015 climate summary
Second quarter 2015 impacts summary
Caribbean region an innovator in drought early warning
Wind River Reservation tribes move toward drought planning
Ranchers, U.S. Forest Service, University of Arizona co-develop drought plans
Summer blockbuster from CoCoRaHS: Assessing Drought in the U.S
Western states drought coordinators meet
The Prairie Post Quarterly Newsletter Of The High Plains Regional Climate Center- July 2015, Martha Shulski, Natalie Umphlett, Bill Sorensen, E. Hunt, Crystal J. Stiles
The Prairie Post Quarterly Newsletter Of The High Plains Regional Climate Center- July 2015, Martha Shulski, Natalie Umphlett, Bill Sorensen, E. Hunt, Crystal J. Stiles
Prairie Post: Quarterly Newsletter of the High Plains Regional Climate Center
Inside this issue:
Message from the director........................................1
Staff spotlight...........................1
Visit from Office of Science and Technology Policy...........2
Partnership spotlight.............2
AWDN information.................3
Update on regional climate conditions..................................3
Product highlight....................4
Research highlight..................4
Outreach/engagement.........5
Recent and upcoming travel and activities.............................6
Iron-Mediated Stabilization Of Soil Carbon Amplifies The Benefits Of Ecological Restoration In Degraded Lands, Lucas C. R. Silva, Timothy A. Doane, Rodrigo S. Correa, Vinicius Valverde, Engil Isadora Pujol Pereira, William R. Horwath
Iron-Mediated Stabilization Of Soil Carbon Amplifies The Benefits Of Ecological Restoration In Degraded Lands, Lucas C. R. Silva, Timothy A. Doane, Rodrigo S. Correa, Vinicius Valverde, Engil Isadora Pujol Pereira, William R. Horwath
School of Earth, Environmental, & Marine Sciences Faculty Publications
Recent observations across a 14‐year restoration chronosequence have shown an unexpected accumulation of soil organic carbon in strip‐mined areas of central Brazil. This was attributed to the rapid plant colonization that followed the incorporation of biosolids into exposed regoliths, but the specific mechanisms involved in the stabilization of carbon inputs from the vegetation remained unclear. Using isotopic and elemental analyses, we tested the hypothesis that plant‐derived carbon accumulation was triggered by the formation of iron‐coordinated complexes, stabilized into physically protected (occluded) soil fractions. Confirming this hypothesis, we identified a fast formation of microaggregates shortly after the application of iron‐rich biosolids, …
U.S. Drought Monitor, June 30, 2015, Brian Fuchs
U.S. Drought Monitor, June 30, 2015, Brian Fuchs
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for June 30, 2015 (6/30/15) 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.
Nutrient Addition Effects On Tropical Dry Forests: A Mini-Review From Microbial To Ecosystem Scales, Jennifer S. Powers, Kristen K. Becklund, Maria G. Gei, Siddharth B. Iyengar, Rebecca Meyer, Christine S. O'Connell, Erik M. Schilling, Christina M. Smith, Bonnie G. Waring, Leland K. Werden
Nutrient Addition Effects On Tropical Dry Forests: A Mini-Review From Microbial To Ecosystem Scales, Jennifer S. Powers, Kristen K. Becklund, Maria G. Gei, Siddharth B. Iyengar, Rebecca Meyer, Christine S. O'Connell, Erik M. Schilling, Christina M. Smith, Bonnie G. Waring, Leland K. Werden
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Humans have more than doubled inputs of reactive nitrogen globally and greatly accelerated the biogeochemical cycles of phosphorus and metals. However, the impacts of increased element mobility on tropical ecosystems remain poorly quantified, particularly for the vast tropical dry forest biome. Tropical dry forests are characterized by marked seasonality, relatively little precipitation, and high heterogeneity in plant functional diversity and soil chemistry. For these reasons, increased nutrient deposition may affect tropical dry forests differently than wet tropical or temperate forests. Here, we review studies that investigated how nutrient availability affects ecosystem and community processes from the microsite to ecosystem scales …
U.S. Drought Monitor, June 23, 2015, Richard Tinker
U.S. Drought Monitor, June 23, 2015, Richard Tinker
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for June 23, 2015 (6/23/15) 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.
Using A High Altitude Balloon Platform To Observe And Measure Seasonal Ozone Flux Over Agricultural Landscapes, Cody Sabo
2017 Academic High Altitude Conference
The concentration of greenhouse gasses (GHGs) in the atmosphere has continued to rise since the industrial era. This issue has had a multitude of negative impacts on all living things. Among the major GHGs are carbon dioxide, methane, nitrous oxide, and ozone. Ozone is of particular importance because it not only has the ability to trap heat in the atmosphere, but it also directly impacts organisms by causing harm to both plants and humans. The damage that ozone causes to plants is most closely linked to ozone uptake rather than ozone concentration. So, measuring ozone uptake is becoming critical for …
U.S. Drought Monitor, June 16, 2015, Richard Tinker
U.S. Drought Monitor, June 16, 2015, Richard Tinker
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for June 16, 2015 (6/16/15) 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, June 2, 2015, David Miskus
U.S. Drought Monitor, June 2, 2015, David Miskus
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for June 2, 2015 (6/2/15) 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.
Umphlett Qci June 2015, Natalie A. Umphlett
Umphlett Qci June 2015, Natalie A. Umphlett
High Plains Regional Climate Center: Staff Publications
Highlights for the Basin
Temperature and Precipitation Anomalies
Drought Conditions
Water Supplies Recovering
Heavy Rains Cause Flooding
Agriculture Impacts
3-Month Precipitation and Temperature Outlooks
U.S. Drought Monitor, May 26, 2015, Brad Rippey
U.S. Drought Monitor, May 26, 2015, Brad Rippey
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for May 26, 2015 (5/26/15) 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, May 19, 2015, Brad Rippey
U.S. Drought Monitor, May 19, 2015, Brad Rippey
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for May 19, 2015 (5/19/15) 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.
Possible Precursor Events To Earthquakes And The Resulting Effects On Organic Material In The Surrounding Water Bodies, Kiyoko Nakatsui
Possible Precursor Events To Earthquakes And The Resulting Effects On Organic Material In The Surrounding Water Bodies, Kiyoko Nakatsui
Student Scholar Symposium Abstracts and Posters
Being located on the “Ring of Fire” Japan experiences many seismic events. Adding to this, it is located at the convergence of four fault lines where seismic activity will be even more frequent and severe. Although small tremors occurring in an area are indicators of an earthquake to come it only gives minutes of warning. Scientists are now trying to see if latent heat and gas release from fault lines can indicate an earthquake to come with hours or even days of warning. MODIS aqua and terra data will be analyzed in order to see if such precursors can be …
U.S. Drought Monitor, May 12, 2015, Brian Fuchs
U.S. Drought Monitor, May 12, 2015, Brian Fuchs
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for May 12, 2015 (5/12/15) 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, May 5, 2015, Mark D. Svoboda
U.S. Drought Monitor, May 5, 2015, Mark D. Svoboda
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for May 5, 2015 (5/5/15) 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.
Geochemical Analysis Of Surface Materials Surrounding The Bautsch-Gray Mine Superfund Site Near Galena, Illinois, Ryan Plath
Geology: Student Scholarship & Creative Works
The Bautsch-Gray zinc and lead mine, near Galena, IL, was in operation from the early 1900s until closing in 1975. The mine’s tailings pile has documented elevated lead and zinc concentrations in the surface materials surrounding the site. Numerous floods have caused contaminated sediment to migrate off the mine tailings pile, across Blackjack Road and into an outwash basin, and towards Smallpox Creek. Since this site was designated an EPA priority list Superfund site in 2010, the EPA has conducted numerous remediation efforts. This study attempts to develop a better understanding of the contamination within the soils of the outwash …
Using Kriging, Cokriging, And Gis To Visualize Fe And Mn In Groundwater, Crystal Johnson
Using Kriging, Cokriging, And Gis To Visualize Fe And Mn In Groundwater, Crystal Johnson
Electronic Theses and Dissertations
For aesthetic, economic, and health-related reasons, allowable concentrations of iron (Fe) and manganese (Mn) found present in drinking water are 0.3 mg/L and 0.05 mg/L, respectively. Water samples taken from private drinking wells in the rural communities within Buncombe County, North Carolina contain amounts of these metals in concentrations higher than the suggested limits. This study focused on bedrock geology, elevation, saprolite thickness, and well depth to determine factors affecting Fe and Mn. Using ArcGIS 10.2, spatial trends in Fe and Mn concentrations ranges were visualized, and estimates of the metal concentrations were interpolated to unmonitored areas. Results from this …
U.S. Drought Monitor, April 28, 2015, Anthony Artusa
U.S. Drought Monitor, April 28, 2015, Anthony Artusa
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for April 28, 2015 (4/28/15) 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, April 21, 2015, Anthony Artusa
U.S. Drought Monitor, April 21, 2015, Anthony Artusa
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for April 21, 2015 (4/21/15) 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, April 14, 2015, Michael J. Brewer
U.S. Drought Monitor, April 14, 2015, Michael J. Brewer
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for April 14, 2015 (4/14/15) 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.