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Articles 721 - 750 of 1249

Full-Text Articles in Oceanography and Atmospheric Sciences and Meteorology

Monitoring Ship Noise To Assess The Impact Of Coastal Developments On Marine Mammals, Nathan D. Merchant, Enrico Pirotta, Tim R. Barton, Paul M. Thompson Jan 2014

Monitoring Ship Noise To Assess The Impact Of Coastal Developments On Marine Mammals, Nathan D. Merchant, Enrico Pirotta, Tim R. Barton, Paul M. Thompson

Biology - All Scholarship

The potential impacts of underwater noise on marine mammals are widely recognised, but uncertainty over variability in baseline noise levels often constrains efforts to manage these impacts. This paper characterises natural and anthropogenic contributors to underwater noise at two sites in the Moray Firth Special Area of Conservation, an important marine mammal habitat that may be exposed to increased shipping activity from proposed offshore energy developments. We aimed to establish a pre-develop- ment baseline, and to develop ship noise monitoring methods using Automatic Identification System (AIS) and time-lapse video to record trends in noise levels and shipping activity. Our results …


Assessing Optimal Set Of Implemental Physical Parameterization Schemes In A Multi-Physics Land Surface Model Using Genetic Algorithm, S. Hong, X. Yu, S. K. Park, Y.-S. Choi, Boksoon Myoung Jan 2014

Assessing Optimal Set Of Implemental Physical Parameterization Schemes In A Multi-Physics Land Surface Model Using Genetic Algorithm, S. Hong, X. Yu, S. K. Park, Y.-S. Choi, Boksoon Myoung

Mathematics, Physics, and Computer Science Faculty Articles and Research

Optimization of land surface models has been challenging due to the model complexity and uncertainty. In this study, we performed scheme-based model optimizations by designing a framework for coupling "the micro-genetic algorithm" (micro-GA) and "the Noah land surface model with multiple physics options" (Noah-MP). Micro-GA controls the scheme selections among eight different land surface parameterization categories, each containing 2–4 schemes, in Noah-MP in order to extract the optimal scheme combination that achieves the best skill score. This coupling framework was successfully applied to the optimizations of evapotranspiration and runoff simulations in terms of surface water balance over the Han River …


Numerical Simulation Of “An American Haboob”, A. Vukovic, M. Vujadinovic, G. Pejanovic, J. Andric, M. J. Kumjian, V. Djurdjevic, M. Dacic, Anup K. Prasad, Hesham El-Askary, B. C. Paris, S. Petkovic, W. Sprigg, S. Nickovic Jan 2014

Numerical Simulation Of “An American Haboob”, A. Vukovic, M. Vujadinovic, G. Pejanovic, J. Andric, M. J. Kumjian, V. Djurdjevic, M. Dacic, Anup K. Prasad, Hesham El-Askary, B. C. Paris, S. Petkovic, W. Sprigg, S. Nickovic

Mathematics, Physics, and Computer Science Faculty Articles and Research

A dust storm of fearful proportions hit Phoenix in the early evening hours of 5 July 2011. This storm, an American haboob, was predicted hours in advance because numerical, land–atmosphere modeling, computing power and remote sensing of dust events have improved greatly over the past decade. High-resolution numerical models are required for accurate simulation of the small scales of the haboob process, with high velocity surface winds produced by strong convection and severe downbursts. Dust productive areas in this region consist mainly of agricultural fields, with soil surfaces disturbed by plowing and tracks of land in the high Sonoran Desert …


Osmb Final Report: Task 6. Tenmile Lake Boat Wash Effectiveness Monitoring, Samuel Cimino, Angela L. Strecker Jan 2014

Osmb Final Report: Task 6. Tenmile Lake Boat Wash Effectiveness Monitoring, Samuel Cimino, Angela L. Strecker

Center for Lakes and Reservoirs Publications and Presentations

Public awareness of aquatic invasive species and proper boat cleaning procedures may prove to be beneficial in reducing the transport and establishment of aquatic invasive species like New Zealand mud snails and zebra and quagga mussels as well as hydrilla and Eurasian watermilfoil. The primary objectives of this research project were to observe the use and determine the efficacy of a public boat wash station as well as increase the public’s awareness of proper boat cleaning procedures and aquatic invasive species. The Tenmile Lakes Basin Partnership, Oregon State Marine Board, and the United States Forest Service (USFS) have undertaken an …


Development And Application Of A Gis-Based Long Island Sound Eelgrass Habitat Suitability Index Model, Jamie M.P. Vaudrey, Justin Eddings, Christopher Pickerell, Lorne Brousseau, Charles Yarish Dec 2013

Development And Application Of A Gis-Based Long Island Sound Eelgrass Habitat Suitability Index Model, Jamie M.P. Vaudrey, Justin Eddings, Christopher Pickerell, Lorne Brousseau, Charles Yarish

Department of Marine Sciences

The primary objectives of the Eelgrass Habitat Suitability Index Model (EHSI Model) are to assist in the evaluation of sites being considered for eelgrass restoration efforts in the Long Island Sound (LIS) area and to identify areas where water quality issues reduce or eliminate the potential for natural eelgrass colonization. To achieve this goal, geospatial processing of data available from the Long Island Sound area was conducted using ArcGIS v10.0 including the 3D Analyst and Spatial Analyst extensions. The result is a series of maps presented in this report and a GIS-based model available for users to interact with the …


Umphlett Qci Dec 2013, Natalie A. Umphlett Dec 2013

Umphlett Qci Dec 2013, Natalie A. Umphlett

High Plains Regional Climate Center: Staff Publications

Highlights for the Basin

Temperature and Precipitation Anomalies

Soil Moisture

September Flooding in Colorado

Early October Blizzard

3-Month Precipitation and Temperature Outlooks

U.S. Seasonal Drought Outlook


Mass Bays Resource Inventory: Summary And Findings From The Review Of Plans And Assessments, Urban Harbors Institute, University Of Massachusetts Boston Dec 2013

Mass Bays Resource Inventory: Summary And Findings From The Review Of Plans And Assessments, Urban Harbors Institute, University Of Massachusetts Boston

Urban Harbors Institute Publications

The Massachusetts Bays Program (MBP) contracted with the Urban Harbors Institute (UHI) of the University of Massachusetts Boston to conduct a review of papers, presentations, reports, and other relevant material produced from 1996 (the last CCMP) to present, that might inform the MBP’s update of their Comprehensive Conservation and Management Plan (CCMP). The review focused on five topics identified as priority topics by the MBP: water quality, invasive species, climate change/vulnerability, continuity of estuarine habitat, and estuarine habitat protection in the geographic region of the Mass Bays Program, particularly the 47 nearshore estuaries and embayments identified in the 2012 MBP …


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 …


Remote Sensing Of Aquatic Vegetation And Agricultural Activity In Lake Guntersville, Casey Calamaio, Kel Markert Oct 2013

Remote Sensing Of Aquatic Vegetation And Agricultural Activity In Lake Guntersville, Casey Calamaio, Kel Markert

Von Braun Symposium Student Posters

No abstract provided.


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


Technical Appendix: Economic Impact Of Commercial Fisheries On Local County Economies From Catch In California National Marine Sanctuaries 2010, 2011 And 2012, Vernon R. Leeworthy, Desiree Jerome, Kelsey Schueler Sep 2013

Technical Appendix: Economic Impact Of Commercial Fisheries On Local County Economies From Catch In California National Marine Sanctuaries 2010, 2011 And 2012, Vernon R. Leeworthy, Desiree Jerome, Kelsey Schueler

Working Papers

This report documents the data and methods of estimation used in estimating the economic impact of commercial fishing catch from all four National Marine Sanctuaries in California on local county economies in terms of harvest revenue received by fishermen and the associated economic impacts, including multiplier impacts, on total output, value added, income and the number of full- and part-time jobs.

This report is part of a series of reports meeting the priorities in the “Office of National Marine Sanctuaries (ONMS) West Coast Region Socioeconomic Plan FY 2013 – FY 2014” and “national program priorities” on establishing the connection between …


The General Qapp For Long Island Sound Volunteer Coastal Monitoring (With Adoption Form), Jamie M.P. Vaudrey, Kimberly Gallagher Sep 2013

The General Qapp For Long Island Sound Volunteer Coastal Monitoring (With Adoption Form), Jamie M.P. Vaudrey, Kimberly Gallagher

Department of Marine Sciences

The General QAPP for Long Island Sound Volunteer Coastal Monitoring is designed to streamline the process of writing a QAPP for Monitoring Programs in the Long Island Sound area. This document does not replace guidance on developing a program and is not sufficient as a stand-alone document to guide the initial development and sample design process for a monitoring program.


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


Juxtaposing Nasa’S Aeronet Aod With Carb Pm Data Over The San Joaquin Valley To Facilitate Multi-Angle Imaging Spectroradiometer (Misr) Pm Pollution Research, John Kanemoto Aug 2013

Juxtaposing Nasa’S Aeronet Aod With Carb Pm Data Over The San Joaquin Valley To Facilitate Multi-Angle Imaging Spectroradiometer (Misr) Pm Pollution Research, John Kanemoto

STAR Program Research Presentations

Airborne particulate matter (PM) has been shown to increase the risk for asthma, chronic bronchitis, cardiopulmonary complications, and respiratory cell membrane damage/infection/leakage. PM levels are currently analyzed from two perspectives: stationary land-based monitoring (LBM) sites and total Aerosol Optical Depth (AOD) atmospheric column measurements. Both perspectives often leave miles of space between measuring locations and will have a continually increasing cost from introducing/maintaining sites. The Multi-angle Imaging SpectroRadiometer (MISR) satellite team hopes to begin investigating/archiving PM levels comprehensively via inputting MISR AOD measurements into a function/model which predicts the amount of ground level PM.

In the future, multivariable spatial correlations …


Classifying Reanalysis Surface Temperature Probability Density Functions (Pdfs) Over North America With Cluster Analysis, Paul C. Loikith, Benjamin R. Lintner, Jinwon Kim, Huikyo Lee Jul 2013

Classifying Reanalysis Surface Temperature Probability Density Functions (Pdfs) Over North America With Cluster Analysis, Paul C. Loikith, Benjamin R. Lintner, Jinwon Kim, Huikyo Lee

Geography Faculty Publications and Presentations

An important step in projecting future climate change impacts on extremes involves quantifying the underlying probability distribution functions (PDFs) of climate variables. However, doing so can prove challenging when multiple models and large domains are considered. Here an approach to PDF quantification using k-means clustering is considered. A standard clustering algorithm (with k = 5 clusters) is applied to 33 years of daily January surface temperature from two state-of-the-art reanalysis products, the North American Regional Reanalysis and the Modern Era Retrospective Analysis for Research and Applications. The resulting cluster assignments yield spatially coherent patterns that can be broadly related to …


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


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 …


Understanding Effects Of Changes In Land Use, Environmental Parameters, Habitat Characteristics On The Great Basin Aquatic Invertebrates Using Ecological Stoichiometric Theory, Knut Mehler May 2013

Understanding Effects Of Changes In Land Use, Environmental Parameters, Habitat Characteristics On The Great Basin Aquatic Invertebrates Using Ecological Stoichiometric Theory, Knut Mehler

UNLV Theses, Dissertations, Professional Papers, and Capstones

Many freshwater ecosystems in the Great Basin have undergone dramatic alteration over the past decades due to groundwater withdrawal, water diversion and changes in land use. These changes have affected benthic food web dynamics by altering the availability of chemical key elements for primary and secondary producers, by loss of biodiversity and extinction of endemic species. However, only few studies are available that addresses the link between changes in land use, habitat characteristics and its effects on benthic macroinvertebrates (BMI) communities comprehensively and little attention has been given to integrating physiochemical aspects to link ecosystem functions.

This dissertation analyzes the …


Examining Rapid Onset Drought Development Using The Thermal Infrared–Based Evaporative Stress Index, Jason A. Otkin, Martha C. Anderson, Christopher Hain, Iliana E. Mladenova, Jeffrey B. Basara, Mark Svoboda Apr 2013

Examining Rapid Onset Drought Development Using The Thermal Infrared–Based Evaporative Stress Index, Jason A. Otkin, Martha C. Anderson, Christopher Hain, Iliana E. Mladenova, Jeffrey B. Basara, Mark Svoboda

National Drought Mitigation Center: Faculty Publications

Reliable indicators of rapid drought onset can help to improve the effectiveness of drought early warning systems. In this study, the evaporative stress index (ESI), which uses remotely sensed thermal infrared imagery to estimate evapotranspiration (ET), is compared to drought classifications in the U.S. Drought Monitor (USDM) and standard precipitation-based drought indicators for several cases of rapid drought development that have occurred across the United States in recent years. Analysis of meteorological time series from the North American Regional Reanalysis indicates that these events are typically characterized by warm air temperature and low cloud cover anomalies, often with high winds …


Droughtscape, Spring 2013, National Drought Mitigation Center Apr 2013

Droughtscape, Spring 2013, National Drought Mitigation Center

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

Contents

Director’s report

First quarter climate summary and outlook

Impacts: Crop indemnities set records in 2012; water conflicts escalating

International meeting recommends countries have drought policies

NDMC plays key role in international drought policy meeting

EDEN and VOAD guide helps build community drought capacity

Svoboda, other experts and policymakers focus on food and water security

New Mexico ranching workshop set for May 29 in Socorro

Ranch planning updates: archived webinars, new publications

Tune in to the US Drought Monitor Forum, April 16-18

Archived webinar looks at using drought simulations in planning

CoCoRaHS WxTalk on drought


Aquatic Invasive Plant Surveys In The Blm Medford District During 2012, Rich Miller, Vanessa Morgan, Mark D. Sytsma Apr 2013

Aquatic Invasive Plant Surveys In The Blm Medford District During 2012, Rich Miller, Vanessa Morgan, Mark D. Sytsma

Center for Lakes and Reservoirs Publications and Presentations

Aquatic plant surveys were conducted at 22 waterbodies located within the Bureau of Land Management’s Medford District during the summer of 2012. Sites included eleven lakes, ponds or reservoirs and six reaches along the Rogue and Applegate Rivers. Five sampling areas surveyed during 2010 and 2011 were revisited to determine the extent of known non-native species infestations, positively identify rare species, or verify the absence of an expected non-native species. Plant specimens were collected at up to 50 sites at each waterbody using plant rakes or by observation. The non-native submersed species curly leaf pondweed (Potamogeton crispus) and …


Continuous Monitoring Reveals Multiple Controls On Ecosystem Metabolism In A Suburban Stream, Jake J. Beaulieu, Clay P. Arango, David A. Balz, William D. Shuster Mar 2013

Continuous Monitoring Reveals Multiple Controls On Ecosystem Metabolism In A Suburban Stream, Jake J. Beaulieu, Clay P. Arango, David A. Balz, William D. Shuster

Biology Faculty Scholarship

1. Primary production and respiration in streams, collectively referred to as stream ecosystem metabolism, are fundamental processes that determine trophic structure, biomass and nutrient cycling. Few studies have used high‐frequency measurements of gross primary production (GPP) and ecosystem respiration (ER) over extended periods to characterise the factors that control stream ecosystem metabolism at hourly, daily, seasonal and annual scales.

2. We measured ecosystem metabolism at 5‐min intervals for 23 months in Shepherd Creek, a small suburban stream in Cincinnati, Ohio (U.S.A.).

3. Daily GPP was best predicted by a model containing light and its synergistic interaction with water temperature. Water …


Assessment Of A Rotenone Application Event At Mormon Island West Lake In Central Nebraska, Keith D. Koupal, Brian C. Peterson, Casey W. Schoenebeck Mar 2013

Assessment Of A Rotenone Application Event At Mormon Island West Lake In Central Nebraska, Keith D. Koupal, Brian C. Peterson, Casey W. Schoenebeck

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Fisheries managers applied rotenone to Mormon Island West in August of 2010 to renovate a fish community that was hypothesized to be unbalanced (i.e., dominated with gizzard shad and common carp) based on standardized survey results. We estimated species-specific biomass following the lake renovation to provide a baseline biomass estimate for a sand pit lake and to evaluate the effectiveness of standardized sampling gears. Gizzard shad (Dorosoma cepedianum) were abundant in all sampling gears, but mostly stock-size (>175 mm total length) and larger individuals were caught in gill and trap nets and sub-stock (≤175 mm total length) …


Aquatic Invasive Species Surveys Of Upper Klamath Lake, Fourmile Lake, And Lake Of The Woods, Or During 2012, Rich Miller, Mark D. Sytsma Mar 2013

Aquatic Invasive Species Surveys Of Upper Klamath Lake, Fourmile Lake, And Lake Of The Woods, Or During 2012, Rich Miller, Mark D. Sytsma

Center for Lakes and Reservoirs Publications and Presentations

Three lakes located within the Klamath River Basin in Oregon (Upper Klamath Lake, Fourmile Lake, and Lake of the Woods) were surveyed for aquatic invasive species during the summer of 2012. Specimens were collected using plant rakes, benthic dredges, plankton nets, and crayfish traps. No invasive aquatic plants, gastropods, snails, bivalves or crayfish were detected in the lakes.


Remote Sensing Of Surface Visibility From Space: A Look At The United States East Coast, Amy L. Kessner Feb 2013

Remote Sensing Of Surface Visibility From Space: A Look At The United States East Coast, Amy L. Kessner

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

While important for the management of air quality, human health and transportation, surface visibility data currently are only available through ground-based measurements, such as the Automated Surface Observing System (ASOS), and therefore lack spatial coverage. In analogy to the recent work of using satellite-based aerosol optical depth (AOD) to derive surface dry aerosol mass concentration at continental-to-global scale for cloud-free conditions, this study evaluates the potential of AOD retrieved from the MODerate Resolution Imaging Spectroradiometer (MODIS) for deriving surface visibility. For this purpose of evaluation, the truncated and discrete visibility data from daily weather reports are not suitable and the …


An Intercomparison Of Drought Indicators Based On Thermal Remote Sensing And Nldas-2 Simulations With U.S. Drought Monitor Classifications, Martha C. Anderson, Christopher Hain, Jason Otkin, Xiwu Zhan, Kingtse Mo, Mark Svoboda, Brian Wardlow, Agustin Pimstein Jan 2013

An Intercomparison Of Drought Indicators Based On Thermal Remote Sensing And Nldas-2 Simulations With U.S. Drought Monitor Classifications, Martha C. Anderson, Christopher Hain, Jason Otkin, Xiwu Zhan, Kingtse Mo, Mark Svoboda, Brian Wardlow, Agustin Pimstein

National Drought Mitigation Center: Faculty Publications

Comparison of multiple hydrologic indicators, derived from independent data sources and modeling approaches, may improve confidence in signals of emerging drought, particularly during periods of rapid onset. This paper compares the evaporative stress index (ESI)—a diagnostic fast-response indicator describing evapotranspiration (ET) deficits derived within a thermal remote sensing energy balance framework—with prognostic estimates of soil moisture (SM), ET, and runoff anomalies generated with the North American Land Data Assimilation System (NLDAS). Widely used empirical indices based on thermal remote sensing [vegetation health index (VHI)] and precipitation percentiles [standardized precipitation index (SPI)] were also included to assess relative performance. Spatial and …


Estimating Greenhouse Gas Emissions From A Waste Lagoon, Arturo I. Quintanar, Rezaul Mamood, Nanh Lovanh, Justin M. Rawley, Evi Becerra-Acosta, John H. Loughrin Jan 2013

Estimating Greenhouse Gas Emissions From A Waste Lagoon, Arturo I. Quintanar, Rezaul Mamood, Nanh Lovanh, Justin M. Rawley, Evi Becerra-Acosta, John H. Loughrin

High Plains Regional Climate Center: Staff Publications

A cost-effective approach was used to investigate the relationship between emission of the greenhouse gases (GHG), namely, CO2, CH4, and N2O and energy fluxes from a swine waste lagoon. Energy fluxes were calculated using the Penman method. The energy fluxes showed a diurnal pattern as expected of such fluxes. We found that air temperature and latent energy, lagoon surface temperature and solar radiation, as well as air temperature and wind speed can be used to predict for CO2, CH4, and N2O emissions, respectively. Comparison of observed and predicted …


Regional Climate Trends And Scenarios For The U.S. National Climate Assessment Part 4. Climate Of The U.S. Great Plains, Kenneth E. Kunkel, Laura E. Stevens, Scott E. Stevens, Liqiang Sun, Emily Janssen, Donald Wuebbles, Michael C. Kruk, Devin Thomas, Martha Shulski, Natalie A. Umphlett, Kenneth G. Hubbard, Kevin Robbins, Luigi Romolo, Adnan Akyuz, Tapan B. Pathak, Tony R. Bergantino, J. Greg Dobson Jan 2013

Regional Climate Trends And Scenarios For The U.S. National Climate Assessment Part 4. Climate Of The U.S. Great Plains, Kenneth E. Kunkel, Laura E. Stevens, Scott E. Stevens, Liqiang Sun, Emily Janssen, Donald Wuebbles, Michael C. Kruk, Devin Thomas, Martha Shulski, Natalie A. Umphlett, Kenneth G. Hubbard, Kevin Robbins, Luigi Romolo, Adnan Akyuz, Tapan B. Pathak, Tony R. Bergantino, J. Greg Dobson

High Plains Regional Climate Center: Staff Publications

This document is one of series of regional climate descriptions designed to provide input that can be used in the development of the National Climate Assessment (NCA). As part of a sustained assessment approach, it is intended that these documents will be updated as new and well-vetted model results are available and as new climate scenario needs become clear. It is also hoped that these documents (and associated data and resources) are of direct benefit to decision makers and communities seeking to use this information in developing adaptation plans.

There are nine reports in this series, one each for eight …


Droughtscape, Winter 2013, Kelly Smith Jan 2013

Droughtscape, Winter 2013, Kelly Smith

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

Contents

Director’s report

Climatological overview of drought in 2012

Climatological overview of drought, October-December 2012

Impacts of drought in 2012

Drought planning webinars scheduled for ranch advisors

UNL honors NDMC for exceptional service

Report from the emerging community of drought planners

Feb. 6 webinar on drought simulations

Climate Masters course starting

Climate Change in the Midwest book includes drought

Video highlights from coverage of drought of 2012

U.S. Drought Monitor Forum 2013

UN’s High Level Meeting on National Drought Policy

NDMC collaboration with India, Czech Republic