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Articles 1 - 30 of 42
Full-Text Articles in Physical and Environmental Geography
Global Digital Elevation Model Accuracy Assessment In The Himalaya, Nepal, Luke G. Miles
Global Digital Elevation Model Accuracy Assessment In The Himalaya, Nepal, Luke G. Miles
Masters Theses & Specialist Projects
Digital Elevation Models (DEMs) are digital representations of surface topography or terrain. Collection of DEM data can be done directly through surveying and taking ground control point (GCP) data in the field or indirectly with remote sensing using a variety of techniques. The accuracies of DEM data can be problematic, especially in rugged terrain or when differing data acquisition techniques are combined. For the present study, ground data were taken in various protected areas in the mountainous regions of Nepal. Elevation, slope, and aspect were measured at nearly 2000 locations. These ground data were imported into a Geographic Information System …
Spatial Analysis Of Fatal Automobile Crashes In Nashville, Tn, 2001-2011, Yan Chen
Spatial Analysis Of Fatal Automobile Crashes In Nashville, Tn, 2001-2011, Yan Chen
Masters Theses & Specialist Projects
With increasing levels of motor vehicle ownership, automobile crashes have become a serious public issue in the U.S. and around the world. Knowing when, where, and how traffic accidents happen is critical in order to ensure road safety and to plan for adequate road infrastructure. There is a rich body of literature pertaining to time-related fatal crashes, most of which focuses on non-spatial factors such as a driver’s visibility at night, drinking and drug use, and road conditions. These studies provide a theoretical basis for understanding the causes of crashes from a non-spatial perspective, and a number of traffic laws …
Eastern Deciduous Forest Phenology And Vegetative Vigor Trends From 2000 To 2013, Mammoth Cave National Park, Ky, Sean Taylor Hutchison
Eastern Deciduous Forest Phenology And Vegetative Vigor Trends From 2000 To 2013, Mammoth Cave National Park, Ky, Sean Taylor Hutchison
Masters Theses & Specialist Projects
Global climate change is predicted to affect environmental systems at the midlatitudes, but the scope, severity, and outcomes of these impacts are yet to be fully understood. This study focuses on the implications of short-term climate variability for forests in central Kentucky. Using a Normalized Difference Vegetation Index (NDVI) calculated from MODerate-Resolution Imaging Spectroradiometer (MODIS) instrument data, the photosynthetic activity of vegetation at Mammoth Cave National Park (MACA) is tracked from 2000 to 2013. Three methods were employed to examine the changes and climate influences in vegetation over the study period: 1) aggregating the NDVI of the Park by year …
Getting Salmon Back In Salmon Creek: Systematizing Comparative Water Quality Analysis For Targeted Restoration, Zbigniew J. Grabowski, Sarah Janjua, Michael Swamer, Heejun Chang, Eric Watson
Getting Salmon Back In Salmon Creek: Systematizing Comparative Water Quality Analysis For Targeted Restoration, Zbigniew J. Grabowski, Sarah Janjua, Michael Swamer, Heejun Chang, Eric Watson
Geography Faculty Publications and Presentations
This presentation focuses on water quality restoration efforts in Salmon Creek
Engaging Stakeholders In Ecosystem Service Assessment Under Climate Change And Urban Development Scenarios, Heejun Chang, David E. Ervin, Wes Hoyer, Mike Psaris, Ken Lyons, Emily D. Dietrich, Samantha Hamlin, John Lambrinos, Tammy Winfield, Bobby Cochran
Engaging Stakeholders In Ecosystem Service Assessment Under Climate Change And Urban Development Scenarios, Heejun Chang, David E. Ervin, Wes Hoyer, Mike Psaris, Ken Lyons, Emily D. Dietrich, Samantha Hamlin, John Lambrinos, Tammy Winfield, Bobby Cochran
Geography Faculty Publications and Presentations
This presentation focuses on how scientists can engage stakeholders in ecosystem service assessment.
Early Humboldtian Influences On Alfred Russel Wallace's Scheme Of Nature [Presented At The Alfred Russel Wallace And His Legacy Royal Society Of London Meeting, 21 October 2013], Charles H. Smith
DLPS Faculty Publications
Alfred Russel Wallace’s 1858 Ternate paper on natural selection is a famous work in the history of science. Beyond his co-discovery of the principle, moreover, Wallace is known for a large number of early applications of the idea, both to biological and biogeographical subjects. Yet how much do we really know about Wallace’s own evolution of thought, and his actual intentions before his views were swallowed up by the inertia of Darwin’s revolution? A number of differences between Wallace’s and Darwin’s views are apparent and have been much treated over the years, but related discussions dwell more on effects than …
Land Surface Phenologies And Seasonalities Using Cool Earthlight In Mid-Latitude Croplands, Woubet G. Alemu, G. M. Henebry
Land Surface Phenologies And Seasonalities Using Cool Earthlight In Mid-Latitude Croplands, Woubet G. Alemu, G. M. Henebry
Natural Resource Management Faculty Publications
Phenology deals with timing of biotic phenomena and seasonality concerns temporal patterns of abiotic variables. Studies of land surface phenology (LSP) and land surface seasonality (LSS) have long been limited to visible to near infrared (VNIR) wavelengths, despite degradation by atmospheric effects and solar illumination constraints. Enhanced land surface parameters derived from passive microwave data enable improved temporal monitoring of agricultural land surface dynamics compared to the vegetation index data available from VNIR data. LSPs and LSSs in grain growing regions of the Volga River Basin of Russia and the spring wheat belts of the USA and Canada were characterized …
Plant Community Composition And Structure Monitoring In Scotts Bluff National Monument, 2013 Annual Report, Isabel Ashton, Michael Prowatzke
Plant Community Composition And Structure Monitoring In Scotts Bluff National Monument, 2013 Annual Report, Isabel Ashton, Michael Prowatzke
United States National Park Service: Publications
Introduction
During the last century, much of the prairie within the Northern Great Plains has been plowed for cropland, planted with non-natives to maximize livestock production, or otherwise developed, making it one of the most threatened ecosystems in the United States. Within Nebraska, greater than 77% of the area of native mixed grass prairie has been lost since European settlement (Samson and Knopf 1994). The National Park Service (NPS) plays an important role in preserving and restoring some of the last pieces of intact prairies within its boundaries. The stewardship goal of the NPS is to “preserve ecological integrity and …
Book Review: The Revenge Of Geography, Robert Weaver
Book Review: The Revenge Of Geography, Robert Weaver
Faculty Publications and Presentations
No abstract provided.
Evaluation Of Current Community-Based Monitoring Efforts And Recommendations For Developing A Cohesive Network Of Support For Monitoring Long Island Sound Embayments., Jamie M.P. Vaudrey, Jamie Alonzo, Adrienne Esposito, Curt Johnson, Maureen Dolan Murphy, Charles Yarish
Evaluation Of Current Community-Based Monitoring Efforts And Recommendations For Developing A Cohesive Network Of Support For Monitoring Long Island Sound Embayments., Jamie M.P. Vaudrey, Jamie Alonzo, Adrienne Esposito, Curt Johnson, Maureen Dolan Murphy, Charles Yarish
Department of Marine Sciences
This project focuses on Long Island Sound embayments and represents an exploration of the potential for coordination among community-based water quality monitoring groups, and coordination between community-based groups and data end users, including scientists and managers. Community-based monitoring groups represent a potential valuable source of water quality information. The development of standardized protocols, training methods and reporting procedures will serve to provide end users with the confidence necessary to utilize the data collected as part of community-based monitoring programs. Both groups of stakeholders stand to benefit from this type of coordination with the ultimate benefit being a healthier, better understood …
Agenda: Arizona V. California At 50: The Legacy And Future Of Governance, Reserved Rights, And Water Transfers, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment
Agenda: Arizona V. California At 50: The Legacy And Future Of Governance, Reserved Rights, And Water Transfers, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment
Arizona v. California at 50: The Legacy and Future of Governance, Reserved Rights, and Water Transfers (Martz Summer Conference, August 15-16)
The Colorado River is an economic, environmental and cultural lifeline of the southwestern United States, and the allocation of its scarce waters are a source of ongoing controversy. This year marks the 50th anniversary of the Supreme Court decision in Arizona v. California. While the case was an important landmark in the still-evolving relationship between these two Lower Basin states, it remains most relevant today by the way in which it clarified federal rights and responsibilities. This is especially true in the areas of federal (including tribal) reserved rights, the role of the Interior Secretary in Lower Basin water …
The Use Of The Ostracode Cyprideis Americana (Sharpe) As A Proxy For Salinity In Bahamian Lake Systems, Rachel E. Bowles
The Use Of The Ostracode Cyprideis Americana (Sharpe) As A Proxy For Salinity In Bahamian Lake Systems, Rachel E. Bowles
Masters Theses & Specialist Projects
Ostracodes, bi-valved crustaceans, are potentially excellent proxies for salinity.They are abundant, react to changes in salinity, and secrete low-magnesium calcite shells that preserve information about their host water chemistry. Changes in valve trace element concentration, stable isotope composition, and sieve pore shape values have been linked to changes in salinity. This study analyzed the response of the euryhaline ostracode, Cyprideis americana, to salinity in six lakes from two Bahamian islands across two seasons. The purpose of this work was to determine which compositional and morphological variables in C. americana are the most useful for paleosalinity reconstructions.Ostracode and water samples were …
Remote Sensing Of Green Leaf Area Index In Maize And Soybean: From Close-Range To Satellite, Anthony L. Nguy-Robertson
Remote Sensing Of Green Leaf Area Index In Maize And Soybean: From Close-Range To Satellite, Anthony L. Nguy-Robertson
School of Natural Resources: Dissertations, Theses, and Student Research
This dissertation seeks to explore alternative methodologies for estimating green leaf area index (LAI) and crop developmental stages. Specifically this research [1] developed an approach for creating a Moderate Resolution Imaging Spectroradiometer (MODIS) high spatial resolution product for estimating green LAI on the base of data collected using two different close-range sensors. It was determined that the vegetation indices (VIs) Wide Dynamic Range Vegetation Index (WDRVI) and Enhanced Vegetation Index 2 (EVI2) were capable of accurate estimation of green LAI from MODIS 250 m data using models developed from hyperspectral (RMSE < 0.69 m2 m-2; CV < 33%) or multispectral sensors (RMSE < 0.69 m2 m-2; …
Reviewing Models Of Land Availability And Dynamics For Biofuel Crops In The United States And The European Union, Ruopu Li, Nicola Di Virgilio, Qingfeng Guan, Song Feng, Goetz M. Richter
Reviewing Models Of Land Availability And Dynamics For Biofuel Crops In The United States And The European Union, Ruopu Li, Nicola Di Virgilio, Qingfeng Guan, Song Feng, Goetz M. Richter
School of Natural Resources: Faculty Publications
The biofuel-related land use in the USA and the EU has significantly expanded during the last decade; models have been used to estimate land availability and demand in these regions. This paper provides an overview of different land-use modeling practices applicable to first- and second-generation biofuels. We review the importance of different land categories for biofuels, modeling approaches (top-down/bottom-up) and their integration, data availability for calibration and validation, model scale, and uncertainty. Possible future changes of biofuel land use and research gaps and limitations are synthesized. Key issues are the lack of data for independent validation and the need for …
Evaluation Of A Coupled Event-Driven Phenology And Evapotranspiration Model For Croplands In The United States Northern Great Plains, V. Kovalskyy, G. M. Henebry, D. P. Roy, B. Adusei, M. Hansen, G. Senay, D. M. Mocko
Evaluation Of A Coupled Event-Driven Phenology And Evapotranspiration Model For Croplands In The United States Northern Great Plains, V. Kovalskyy, G. M. Henebry, D. P. Roy, B. Adusei, M. Hansen, G. Senay, D. M. Mocko
Natural Resource Management Faculty Publications
A new model coupling scheme with remote sensing data assimilation was developed for estimation of daily actual evapotranspiration (ET). The scheme consists of the VegET, a model to estimate ET from meteorological and water balance data, and an Event Driven Phenology Model (EDPM), an empirical crop specific model trained on multiple years of flux tower data transformed into six types of environmental forcings that are called “events” to emphasize their temporally discrete character, which has advantages for modeling multiple contingent influences. The EDPM in prognostic mode supplies seasonal trajectories of normalized difference vegetation index (NDVI); whereas in diagnostic mode, it …
A Natural Resource Condition Assessment For Sequoia And Kings Canyon National Parks, Appendix 16 - Bats, Alice Chung-Maccoubrey
A Natural Resource Condition Assessment For Sequoia And Kings Canyon National Parks, Appendix 16 - Bats, Alice Chung-Maccoubrey
United States National Park Service: Publications
Scope of Analysis
North American bats are highly unique animals that have historically been overlooked by land managers and misunderstood by the public. Bats are unique as the only true flying mammals and due to their exceptionally long lives (5-15 years) and unusually low reproductive rates (typically one young per year) for their small size. Most North American bat species are insectivorous, serve as the primary predators of nocturnal insects, and can consume up to one-third of their weight in insects per night. Thus, bats play a role in regulating insect populations, insect-related ecological processes, and nutrient redistribution and cycling …
Urban Water As A Coupled System: Interactions And Feedbacks Among Climate, Land Cover, Water Governance, Heejun Chang
Urban Water As A Coupled System: Interactions And Feedbacks Among Climate, Land Cover, Water Governance, Heejun Chang
Geography Faculty Publications and Presentations
This presentation focuses on the changes in urban water systems and includes information on the relationship between water quality and property value, changes in land cover and dissolved oxygen, spatial variations of water temperature, and the need for integrative water and land planning.
Missouri National Recreational River 2012 Resource Brief, Isabel W. Ashton, Michael Prowatzke, Kara Paintner
Missouri National Recreational River 2012 Resource Brief, Isabel W. Ashton, Michael Prowatzke, Kara Paintner
United States National Park Service: Publications
Includes brief information on plant community monitoring, water quality monitoring, and weather and climate monitoring for the Missouri National Recreational River in the United States for 2012.
Aridity, Bert Chapman
Aridity, Bert Chapman
Libraries Faculty and Staff Scholarship and Research
Provides an overview of how aridity in the American West has influenced that region's economic, environmental, and political development and U.S. Government policies in this region.
A Pedagogical Simulation Of The Spatial Distribution Of Carbon Flux Dynamics In Peat Soils, Alan Gilmer
A Pedagogical Simulation Of The Spatial Distribution Of Carbon Flux Dynamics In Peat Soils, Alan Gilmer
Conference Papers
No abstract provided.
Karst Hydrogeology Of The Haney Limestone, South-Central Kentucky, Sarah Marie Arpin
Karst Hydrogeology Of The Haney Limestone, South-Central Kentucky, Sarah Marie Arpin
Masters Theses & Specialist Projects
South-central Kentucky has one of the world’s most intensively studied karst
areas, with most work focusing on the Mammoth Cave System and related caves and aquifers. However, slightly higher in the stratigraphic section than Mammoth Cave, the Haney Limestone is a locally important but less well studied carbonate aquifer. This research provides the most comprehensive synthesis to date of the karst hydrogeology of the Haney Limestone of south-central Kentucky, focusing on the distribution and controls on cave and karst features developed within. In contrast to drainage systems within the major limestones below, joints are the most dominant control on passage …
Hydroelectric Power, Bert Chapman
Hydroelectric Power, Bert Chapman
Libraries Faculty and Staff Scholarship and Research
Provides a historical overview and contemporary analysis of the advantages and disadvantages of federal government support for hydroelectric power in the American West.
Oil Industry, Bert Chapman
Oil Industry, Bert Chapman
Libraries Faculty and Staff Scholarship and Research
Provides an overview of the historical and contemporary development of the American oil industry and how it has impacted U.S. natural resources policies in the American west.
For Want Of Sloops, Water Casks, And Rum: The Difficulties Of Logistics In The Canadian Theater Of The Seven Years War, Daniel Bazan
For Want Of Sloops, Water Casks, And Rum: The Difficulties Of Logistics In The Canadian Theater Of The Seven Years War, Daniel Bazan
Masters Theses
The thesis examines the various difficulties with logistics the British needed to overcome in Canada during the Seven Years War and those who helped . Without the necessary supplies and provisions for frontier campaigning, Britain would have lost the war. The thesis provides primary accounts of the geography during the war, various logistical factors, and the men that helped provide the necessary materials for the successful outcome of the British offensive in Canada.
The Human Face Of Permanent Climate-Induced Displacement, Alaina Umbach
The Human Face Of Permanent Climate-Induced Displacement, Alaina Umbach
Honors Projects in History and Social Sciences
Climate change is predicted to lead to mass displacement, since the land where millions of people currently live will be, at some point, covered with water. For some populations, this will mean to be permanently displaced to a different country because the territory that their sovereign nations occupy will disappear. The most well‐known cases involve the citizens of Vanuatu, Kiribati, Tuvalu, and the Maldives. As the negative impact of climate change becomes clearer and closer in time, policy solutions to this problem are discussed. In this paper, I look at previous cases of populations’ displacement to identify policy lessons that …
Helping Connecticut Towns Plan For Climate Change, Juliana Barrett, Jennifer Pagach
Helping Connecticut Towns Plan For Climate Change, Juliana Barrett, Jennifer Pagach
Wrack Lines
A NOAA Climate Change Adaptation Training Workshop helps Connecticut towns plan ahead.
Missouri National Recreational River Visitor Study, Summer 2012, Marc F. Manni, Yen Le, Steven J. Hollenhorst
Missouri National Recreational River Visitor Study, Summer 2012, Marc F. Manni, Yen Le, Steven J. Hollenhorst
United States National Park Service: Publications
Executive Summary
This visitor study report profiles a systematic random sample of Missouri National Recreation River visitors during July 19 - 25, 2012. A total of 467 questionnaires were distributed to visitor groups. Of those, 256 questionnaires were returned, resulting in a 54.8% response rate.
Group size and type: Thirty-eight percent of visitor groups consisted of two or three people and 35% were in groups of six or more. Sixty-four percent of visitor groups consisted of family groups.
State or country of residence: United States visitors were from 29 states and comprised 99% of total visitation during the survey period, …
Agate Fossil Beds National Monument 2012 Resource Brief, Marcia Wilson, Kara Paintner, Isabel Ashton, Michael Prowatzke
Agate Fossil Beds National Monument 2012 Resource Brief, Marcia Wilson, Kara Paintner, Isabel Ashton, Michael Prowatzke
United States National Park Service: Publications
Includes brief information on plant community monitoring, aquatic invertebrate monitoring, weather and climate monitoring at Agate Fossil Beds National Monument in Nebraska, USA from 2012.
Scotts Bluff National Monument 2012 Resource Brief, Isabel W. Ashton, Michael Prowatzke, Kara Paintner
Scotts Bluff National Monument 2012 Resource Brief, Isabel W. Ashton, Michael Prowatzke, Kara Paintner
United States National Park Service: Publications
Includes brief information on plant community monitoring, air quality monitoring, and weather and climate monitoring at Scotts Bluff National Monument in Nebraska, USA in 2012.
The Global Availability Of Landsat 5 Tm And Landsat 7 Etm+ Land Surface Observations And Implications For Global 30m Landsat Data Product Generation, V. Kovalskyy, David P. Roy
The Global Availability Of Landsat 5 Tm And Landsat 7 Etm+ Land Surface Observations And Implications For Global 30m Landsat Data Product Generation, V. Kovalskyy, David P. Roy
GSCE Faculty Publications
With the advent of the free U.S. Landsat data policy it is now feasible to consider the generation of global coverage 30 m Landsat data sets with temporal reporting frequency similar to that provided by the monthly Web Enabled Landsat (WELD) products. A statistical Landsat metadata analysis is reported considering more than 800,000 Landsat 5 TM and Landsat 7 ETM + acquisitions obtained from the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center archive. The global monthly probabilities of acquiring a cloud-free land surface observation for December 1998 to November 2001 (2000 epoch) and from December 2008 …