Open Access. Powered by Scholars. Published by Universities.®

Earth Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 811 - 840 of 1279

Full-Text Articles in Environmental Indicators and Impact Assessment

U.S. Drought Monitor, October 15, 2013, Richard Tinker Oct 2013

U.S. Drought Monitor, October 15, 2013, Richard Tinker

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for October 15, 2013 (10/15/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


Examining The Relationship Between Drought Development And Rapid Changes In The Evaporative Stress Index, Jason A. Otkin, Martha C. Anderson, Christopher Hain, Mark D. Svoboda Oct 2013

Examining The Relationship Between Drought Development And Rapid Changes In The Evaporative Stress Index, Jason A. Otkin, Martha C. Anderson, Christopher Hain, Mark D. Svoboda

National Drought Mitigation Center: Faculty Publications

In this study, the ability of a new drought metric based on thermal infrared remote sensing imagery to provide early warning of an elevated risk for drought intensification is assessed. This new metric, called the rapid change index (RCI), is designed to highlight areas undergoing rapid changes in moisture stress as inferred from weekly changes in the evaporative stress index (ESI) generated using the Atmosphere–Land Exchange Inverse (ALEXI) surface energy balance model. Two case study analyses across the central United States revealed that the initial appearance of negative RCI values indicative of rapid increases in moisture stress preceded the introduction …


U.S. Drought Monitor, October 8, 2013, Richard Tinker Oct 2013

U.S. Drought Monitor, October 8, 2013, Richard Tinker

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for October 8, 2013 (10/8/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


U.S. Drought Monitor, October 1, 2013, David Miskus Oct 2013

U.S. Drought Monitor, October 1, 2013, David Miskus

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for October 1, 2013 (10/1/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


Droughtscape, Fall 2013, National Drought Mitigation Center Oct 2013

Droughtscape, Fall 2013, National Drought Mitigation Center

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

Contents

Director’s report

Kansas community drought planning workshop November 5

Drought impacts webinars

Drought outlook and summary

Late summer drought brings more agricultural impacts

Plans help ranchers weather drought

NDMC contributions to U2U project

Drought Management Database archives strategies

QuickDRI will help spot flash droughts

NDMC Co-Hosts NASA workshop

Wilhite leads Integrated Drought Management Program work

Speaking of drought

Managing #Drought tweet chat transcript

Updated USDM website


U.S. Drought Monitor, September 24, 2013, Brad Rippey Sep 2013

U.S. Drought Monitor, September 24, 2013, Brad Rippey

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for September 24, 2013 (9/24/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


U.S. Drought Monitor, September 17, 2013, David Miskus Sep 2013

U.S. Drought Monitor, September 17, 2013, David Miskus

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for September 17, 2013 (9/17/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


U.S. Drought Monitor, September 10, 2013, Anthony Artusa Sep 2013

U.S. Drought Monitor, September 10, 2013, Anthony Artusa

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for September 10, 2013 (9/10/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


U.S. Drought Monitor, September 3, 2013, David Miskus Sep 2013

U.S. Drought Monitor, September 3, 2013, David Miskus

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for September 3, 2013 (9/3/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


U.S. Drought Monitor, August 27, 2013, Anthony Artusa Aug 2013

U.S. Drought Monitor, August 27, 2013, Anthony Artusa

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for August 27, 2013 (8/27/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


U.S. Drought Monitor, August 20, 2013, Michael J. Brewer Aug 2013

U.S. Drought Monitor, August 20, 2013, Michael J. Brewer

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for August 20, 2013 (8/20/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


U.S. Drought Monitor, August 13, 2013, Michael J. Brewer Aug 2013

U.S. Drought Monitor, August 13, 2013, Michael J. Brewer

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for August 13, 2013 (8/13/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


U.S. Drought Monitor, August 6, 2013, Brian Fuchs Aug 2013

U.S. Drought Monitor, August 6, 2013, Brian Fuchs

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for August 6, 2013 (8/6/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


Dendrochronological Reconstruction Of Fire, Bogus Basin Area Boise National Forest, Amy L. Cutter Aug 2013

Dendrochronological Reconstruction Of Fire, Bogus Basin Area Boise National Forest, Amy L. Cutter

Student Research Initiative

Since people have settled along the Boise Front, there have been very few documented fire disturbances. This is likely an outcome of fire suppression policies. There is evidence, visible as scars on living trees, that the old growth ponderosa pines located on the East Side Trail in the Boise National Forest have withstood multiple fires. Samples were collected by using a chainsaw to remove small, partial cross-sections from several trees. The Boise Front master chronology was used to accurately cross-date the fire-scarred samples using COFECHA. Analysis of the samples revealed ten fire events ranging from 1709 to 1889. The fire …


Climate Change On The Prairie: A Basic Guide To Climate Change In The High Plains Region - Update, Lincoln, Ne Aug 2013

Climate Change On The Prairie: A Basic Guide To Climate Change In The High Plains Region - Update, Lincoln, Ne

High Plains Regional Climate Center: Staff Publications

Global Climate Change

Climate Change in the United States

Historical Climate Trends in the High Plains Region

Historical Climate Trends in the High Plains Region

High Plains Region Update: 2010-2012

New Tool: Climate Impact Reporter

Climate Change Projections and Possible Impacts

Climate Change Projections and Possible Impacts


U.S. Drought Monitor, July 30, 2013, Brian Fuchs Jul 2013

U.S. Drought Monitor, July 30, 2013, Brian Fuchs

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for July 30, 2013 (7/30/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


Accelerated Thermokarst Formation In The Mcmurdo Dry Valleys, Antarctica, Joseph S. Levy, Andrew G. Fountain, James L. Dickson, James W. Head, Marianne Okal, David R. Marchant, Jaclyn Watters Jul 2013

Accelerated Thermokarst Formation In The Mcmurdo Dry Valleys, Antarctica, Joseph S. Levy, Andrew G. Fountain, James L. Dickson, James W. Head, Marianne Okal, David R. Marchant, Jaclyn Watters

Geology Faculty Publications and Presentations

Thermokarst is a land surface lowered and disrupted by melting ground ice. Thermokarst is a major driver of landscape change in the Arctic, but has been considered to be a minor process in Antarctica. Here, we use ground-based and airborne LiDAR coupled with timelapse imaging and meteorological data to show that 1) thermokarst formation has accelerated in Garwood Valley, Antarctica; 2) the rate of thermokarst erosion is presently,10 times the average Holocene rate; and 3) the increased rate of thermokarst formation is driven most strongly by increasing insolation and sediment/albedo feedbacks. This suggests that sediment enhancement of insolation-driven melting may …


U.S. Drought Monitor, July 23, 2013, Richard R. Heim Jr. Jul 2013

U.S. Drought Monitor, July 23, 2013, Richard R. Heim Jr.

United States Agricultural Commodities in Drought Archive

Drought map of the United States for July 23, 2013 (7/23/13) 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 16, 2013, Richard R. Heim Jr. Jul 2013

U.S. Drought Monitor, July 16, 2013, Richard R. Heim Jr.

United States Agricultural Commodities in Drought Archive

Drought map of the United States for July 16, 2013 (7/16/13) 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.


The Impact Of Nitrogen Contamination And River Modification On A Mississippi River Floodplain Lake, Indu Karthic, Richard B. Brugam Ph.D., William A. Retzlaff, Kevin Johnson Jul 2013

The Impact Of Nitrogen Contamination And River Modification On A Mississippi River Floodplain Lake, Indu Karthic, Richard B. Brugam Ph.D., William A. Retzlaff, Kevin Johnson

SIUE Faculty Research, Scholarship, and Creative Activity

Anthropogenic nitrogen contamination has increased in ecosystems around the world (frequently termed the “nitrogen cascade”). Coke production for steel manufacturing is often overlooked as a source of nitrogen to natural ecosystems. We examined sediment cores from a Horseshoe Lake, a floodplain lake located just East of St. Louis Missouri (USA) to test whether a coking plant effluent could be traced using stable isotopes of nitrogen and diatom microfossils. The distribution of δ15N values in surface sediment samples from the lake shows the highest values near the coking plant effluent. Analysis stable isotopes of nitrogen from sediment cores using …


U.S. Drought Monitor, July 9, 2013, Matthew Rosencrans Jul 2013

U.S. Drought Monitor, July 9, 2013, Matthew Rosencrans

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for July 9, 2013 (7/9/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


U.S. Drought Monitor, July 2, 2013, Matthew Rosencrans Jul 2013

U.S. Drought Monitor, July 2, 2013, Matthew Rosencrans

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for July 2, 2013 (7/2/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


Droughtscape, Summer 2013, National Drought Mitigation Center Jul 2013

Droughtscape, Summer 2013, National Drought Mitigation Center

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

Contents

Director’s report

July 25 webinar: Drought management database, NIDIS update

Republican River Basin workshops July 31, August 1

Summer climate outlook, spring summary

Spring impacts: wildfire, water, agriculture and business

Data help managers assess Nebraska groundwater declines after drought of 2012

Tadesse helps Mexico with Veg-DRI concept

Visiting scholar explores remote sensing of drought in forests

U.S. Drought Monitor Forum photo recap, details online

Workshop helps New Mexico ranchers cope with drought

Alabama’s new drought plan

National Drought Forum report

Drought Impacts Community of Practice report


U.S. Drought Monitor, June 25, 2013, Mark D. Svoboda Jun 2013

U.S. Drought Monitor, June 25, 2013, Mark D. Svoboda

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for June 25, 2013 (6/25/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


U.S. Drought Monitor, June 18, 2013, Mark D. Svoboda Jun 2013

U.S. Drought Monitor, June 18, 2013, Mark D. Svoboda

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for June 18, 2013 (6/18/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


U.S. Drought Monitor, June 11, 2013, David Simeral Jun 2013

U.S. Drought Monitor, June 11, 2013, David Simeral

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for June 11, 2013 (6/11/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


U.S. Drought Monitor, June 4, 2013, David Simeral Jun 2013

U.S. Drought Monitor, June 4, 2013, David Simeral

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for June 4, 2013 (6/4/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.


Toward Global Drought Early Warning Capability: Expanding International Cooperation For The Development Of A Framework For Monitoring And Forecasting, Will Pozzi, Justin Sheffield, Robert Stefanski, Douglas Cripe, Roger Pulwarty, Jürgen V. Vogt, Richard R. Heim Jr., Michael J. Brewer, Mark Svoboda, Rogier Westerhoff, Albert I. J. M. Van Dijk, Benjamin Lloyd-Hughes, Florian Pappenberger, Micha Werner, Emanuel Dutra, Fredrik Wetterhall, Wolfgang Wagner, Siegfried Schubert, Kingtse Mo, Margaret Nicholson, Lynette Bettio, Liliana Nunez, Rens Van Beek, Marc Bierkens, Luis Gustavo Goncalves De Goncalves, João Gerd Zell De Mattos, Richard Lawford Jun 2013

Toward Global Drought Early Warning Capability: Expanding International Cooperation For The Development Of A Framework For Monitoring And Forecasting, Will Pozzi, Justin Sheffield, Robert Stefanski, Douglas Cripe, Roger Pulwarty, Jürgen V. Vogt, Richard R. Heim Jr., Michael J. Brewer, Mark Svoboda, Rogier Westerhoff, Albert I. J. M. Van Dijk, Benjamin Lloyd-Hughes, Florian Pappenberger, Micha Werner, Emanuel Dutra, Fredrik Wetterhall, Wolfgang Wagner, Siegfried Schubert, Kingtse Mo, Margaret Nicholson, Lynette Bettio, Liliana Nunez, Rens Van Beek, Marc Bierkens, Luis Gustavo Goncalves De Goncalves, João Gerd Zell De Mattos, Richard Lawford

National Drought Mitigation Center: Faculty Publications

The need for a global drought early warning framework. Drought has had a significant impact on civilization throughout history in terms of reductions in agricultural productivity, potable water supply, and economic activity, and in extreme cases this has led to famine. Every continent has semiarid areas, which are especially vulnerable to drought. The Intergovernmental Panel on Climate Change has noted that average annual river runoff and water availability are projected to decrease by 10%–13% over some dry and semiarid regions in mid and low latitudes, increasing the frequency, intensity, and duration of drought, along with its associated impacts. The sheer …


The Missing Piece: Drought Impacts Monitoring Report From A Workshop In Tucson, Az March 5-6, 2013, Kirsten Lackstrom, Amanda Brennan, Daniel Ferguson, Mike Crimmins, Lisa Darby, Kirstin Dow, Keith Ingram, Alison Meadow, Henry Reges, Mark Shafer, Kelly Helm Smith Jun 2013

The Missing Piece: Drought Impacts Monitoring Report From A Workshop In Tucson, Az March 5-6, 2013, Kirsten Lackstrom, Amanda Brennan, Daniel Ferguson, Mike Crimmins, Lisa Darby, Kirstin Dow, Keith Ingram, Alison Meadow, Henry Reges, Mark Shafer, Kelly Helm Smith

National Drought Mitigation Center: Faculty Publications

Based on a shared interest to better understand the impacts of drought and the potential utility of using drought impacts reporting as a tool for monitoring conditions, researchers from the Carolinas RISA (Dow, Lackstrom, and Brennan), the Climate Assessment for the Southwest (Crimmins and Ferguson), and the Southwest Climate Science Center (Meadow) decided to convene a workshop in Tucson in March 2013. The primary goal was to assemble a small group of university and agency scientists involved with drought impacts monitoring to discuss opportunities and barriers associated with drought impacts reporting, recommend best practices for implementing a drought impacts reporting …


U.S. Drought Monitor, May 28, 2013, Brad Rippey May 2013

U.S. Drought Monitor, May 28, 2013, Brad Rippey

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for May 28, 2013 (5/28/13) 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: Corn, Soybeans, Hay, Cattle, Winter wheat.