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Oceanography and Atmospheric Sciences and Meteorology Commons™
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Articles 151 - 180 of 241
Full-Text Articles in Oceanography and Atmospheric Sciences and Meteorology
2018 June - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2018 June - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Reports
No abstract provided.
2018 May - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2018 May - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Reports
No abstract provided.
The Impact Of Past Experience With Tornadoes On Future Decisions, Emily Paltz, Michael Hayes
The Impact Of Past Experience With Tornadoes On Future Decisions, Emily Paltz, Michael Hayes
Honors Program: Senior Projects (Public)
Tornadoes are a dangerous threat to public safety. The National Weather Service (NWS), therefore, advises the public to go to an interior room on the lowest level of their houses when a tornado warning is issued for their area. As the NWS Central Region Service Assessment of the Joplin, Missouri Tornado published in July 2011 reveals, however, this is often not the first action taken after learning that there is danger of being hit by a tornado. Rather, people need to seek confirmation from more than one source before following the recommended action. The goal of this research project is …
2018 April - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2018 April - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Reports
No abstract provided.
A New Analysis Of The Gálvez-Davison Index For Convective Forecasts In Northern Africa, Gabriel D. Donndelinger
A New Analysis Of The Gálvez-Davison Index For Convective Forecasts In Northern Africa, Gabriel D. Donndelinger
Theses and Dissertations
Severe wind gusts and thunderstorms have been difficult to forecast in Africa. Traditional convective forecast tools (e.g. Total Totals Index, Lifted Index, K Index (KI) and Convective Available Potential Energy) do not accurately portray potential for thunderstorms in Africa. This research effort used the Gálvez-Davison Index (GDI), a convective index created for the tropics, and assess its applicability to northern Africa. GDI was produced for the Caribbean and Central America, and utilized temperature, moisture, mid-level stability, dry air entrainment and an elevation factor to calculate convective potential. In this research, GDI and KI were calculated using Global Forecast System (GFS) …
Evaluation Of A Cloud Detection Technique Using Spatial And Radiometric Thresholds For Near Infrared Satellite Imagery, William J. Graff
Evaluation Of A Cloud Detection Technique Using Spatial And Radiometric Thresholds For Near Infrared Satellite Imagery, William J. Graff
Theses and Dissertations
Knowledge of cloud location in near infrared (NIR) imagery is of interest to the meteorological community given the wavelengths greater spatial resolution compared to longwave infrared and its potential nighttime applications. This method consists of an algorithm that can be employed by multiple instrument platforms. It analyzes changes between satellite image radiances and a seasonal synthetic background radiance image. The NIR sensor bands of the Sentinel-2 Multispectral Instrument (MSI) and Suomi National Polar-Orbiting Partnership (Suomi NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) satellite instruments are used to evaluate the performance of a monochromatic change detection technique designed to locate areas …
2018 March - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2018 March - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Reports
No abstract provided.
Forecasting Lightning Cessation Using Dual-Polarization Radar And Lightning Mapping Array Near Washington, D.C., Nancy M. Holden
Forecasting Lightning Cessation Using Dual-Polarization Radar And Lightning Mapping Array Near Washington, D.C., Nancy M. Holden
Theses and Dissertations
Accurate forecasts of thunderstorms are important to space launch, aviation, and public safety. While prior studies have primarily focused on atmospheric conditions leading to lightning onset, less research has been dedicated to the challenging problem of predicting lightning cessation. This study verifies the probabilistic lightning cessation model developed by Joseph Patton (2017) at Florida State University for use by the U.S. Air Force's 45th Weather Squadron at Cape Canaveral Air Force Station (CCAFS) and the National Aeronautics and Space Administration (NASA) Kennedy Space Center (KSC). The Washington, D.C. greater metropolitan area, which presents a climate different to that of central …
2018 February - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2018 February - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Reports
No abstract provided.
2018 January - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2018 January - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Reports
No abstract provided.
Impact Of Past Experiences With Tornadoes On Future Decisions In Nebraska, Emily Paltz, Michael Hayes, Matthew Van Den Broeke
Impact Of Past Experiences With Tornadoes On Future Decisions In Nebraska, Emily Paltz, Michael Hayes, Matthew Van Den Broeke
UCARE: Research Products
The National Weather Service (NWS) advises the public to go to an interior room on the lowest level of their houses when a tornado warning is issued for their area. As the NWS Central Region Service Assessment of the Joplin, Missouri Tornado published in July 2011 reveals, however, this is often not the first action taken after learning that there is danger of being hit by a tornado. Rather, people need to seek confirmation from more than one source before following the recommended action. The goal of this research project is to determine how the number of sources and what …
2017 December - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2017 December - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Reports
No abstract provided.
Ldentifying And Characterizing Cognitive Factors Significant To Practicing And Learning Meteorology, Peggy M. Mcneal
Ldentifying And Characterizing Cognitive Factors Significant To Practicing And Learning Meteorology, Peggy M. Mcneal
Dissertations
To see the world as a meteorologist, one must understand and interpret atmospheric processes through representations depicted on two-dimensional weather charts and maps that encode large amounts of spatial and numerical data. This is a cognitively demanding and spatially challenging task, especially for students with burgeoning levels of meteorology knowledge, who lack the expertise of practiced meteorologists that read such charts and maps with ease. With little prior work informing meteorology and meteorology education through a cognitive science lens, this study surveys the literature and follows models of discipline-based education and cognitive science research to identify the discrete intelligence factors …
2017 November - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2017 November - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Reports
No abstract provided.
Embroidered Meteorology, Bettina L. Matzkuhn
Embroidered Meteorology, Bettina L. Matzkuhn
Artizein: Arts and Teaching Journal
Weathering is a series of embroidered works that explore the symbolic and cartographic language of meteorology. Through research, mentorship and the physical work, my understanding and anxiety around weather has grown. Making art is a learning process for me: the haptic is a means for understanding. From embroidered world maps to animation to painted laundry, I conflate the intricacy of textiles with the complicated nature of the atmosphere.
2017 October - Tennesee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2017 October - Tennesee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Reports
No abstract provided.
2017 September - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
2017 September - Tennessee Monthly Climate Report, Tennessee Climate Office, East Tennessee State University
Tennessee Climate Office Monthly Reports
No abstract provided.
Storm Chasing Across The Plains: An Experience Portfolio, Isaac Bowers
Storm Chasing Across The Plains: An Experience Portfolio, Isaac Bowers
Mahurin Honors College Capstone Experience/Thesis Projects
The opportunity to predict and document severe weather across the Plains is not available to many, but it is a vital experience for those who hope to truly excel in meteorology. The ability to travel alongside one of the professors that has guided you through the program, apply the knowledge gained from that professor and many others, and view nature’s breathtaking power in person is truly a capstone experience for any meteorology major. Luckily, the B.S. Meteorology Program at WKU offers a select group of students this opportunity annually. This portfolio report will consist of documentation I recorded during my …
Effects Of Graphical Weather Information Versus Textual Weather Information On Situation Awareness In Meteorology, Stefan Melendez
Effects Of Graphical Weather Information Versus Textual Weather Information On Situation Awareness In Meteorology, Stefan Melendez
Doctoral Dissertations and Master's Theses
Prior to a flight, pilots gather meteorological information to assess the weather conditions pertaining to their flight and to make decisions based on it. This information can come in various formats, such as text and graphical weather information. Research has shown that people have varying learning preferences and that most people prefer visual learning to verbal learning (i.e., graphical over text). It is hypothesized that this difference in learning preference can affect the way pilots interpret and apply the information they obtain prior to their flight. The researcher hypothesizes that graphical weather information has a greater, more positive impact on …
Cirrus Cloud Microphysics Over Darwin, Australia, Dorothea Ivanova, Matthew Johnson
Cirrus Cloud Microphysics Over Darwin, Australia, Dorothea Ivanova, Matthew Johnson
Publications
Ice clouds, crucial to the understanding of both short - and long - term climate trends, are poorly represented in global climate models (GCMs). Cirrus clouds, one of the largest uncertainties in the global radiation budget, have been inadequately studied at low latitudes. Parameterizations exist for mid - latitude and tropical cirrus ( Ivanova et al. 2001; McFarquhar et al. 1997). Due to climate sensitivity in the GCM with respect to cloud input, without robust parameterizations of cirrus clouds, the GCM is inaccurate over most output fields, including radiative forcing, temperature, albedo, and heat flux (Yao and Del Genio 1999). …
Investigating The Effects Of Ice-Forming Saharan Dust Aerosols On Tropical Deep Convection Using Spectral Bin Microphysics, Matthew Scott Gibbons
Investigating The Effects Of Ice-Forming Saharan Dust Aerosols On Tropical Deep Convection Using Spectral Bin Microphysics, Matthew Scott Gibbons
Legacy Theses & Dissertations (2009 - 2024)
Aerosol effects on cloud and precipitation formation remain a significant source of uncertainty in the study of weather and climate. Aerosols can impact cloud and precipitation formation by functioning as cloud condensation nuclei (CCN), giant cloud condensation nuclei (GCCN) and/or ice nuclei (IN) affecting subsequent cloud microphysical processes. Aerosol effects on clouds are tightly interconnected with cloud dynamic and thermodynamic variables, some of which are currently impossible or infeasible to observe with existing sensors. Numerical models can be used to untangle aerosols effects from cloud dynamics and thermodynamics, but model results can be affected by the complexity of the parameterizations …
Broadening Traditional Aviation Meteorology Education To Support Spaceflight Operations, Thomas A. Guinn, Nicholas J. Stapleton, Katherine A. Winters, Bradley M. Muller, Debbie M. Schaum
Broadening Traditional Aviation Meteorology Education To Support Spaceflight Operations, Thomas A. Guinn, Nicholas J. Stapleton, Katherine A. Winters, Bradley M. Muller, Debbie M. Schaum
Journal of Aviation/Aerospace Education & Research
The purpose of this paper is to examine the expansion of traditional aviation meteorology education necessary to support the growing commercial space-operations industry. While spaceflight meteorological considerations do overlap with those of traditional aviation operations, there are notable differences schools must address for appropriate education and training of both meteorologists and operators. These include knowledge of increased weather sensitivities, space-weather impacts, triggered lightning, triboelectrification, and high-resolution vertical wind-profile analyses. An added challenge in the educational process is the more limited amount of publicly available weather and space-weather products necessary to support spaceflight education. Furthermore, in comparison with traditional aviation meteorology, …
Geostationary Operational Environmental Satellite- R Series (Goes-R) 2016, Paige N. Dixon
Geostationary Operational Environmental Satellite- R Series (Goes-R) 2016, Paige N. Dixon
Student Works
This is a report on the first NOAA GOES-R satellite, launched on November 19th, 2016. This report will cover some of the details of the GOES-R project, as well as discuss the collaborations that made the project possible. This document will also detail some of the new satellite’s capabilities including geostationary lightning detection, and space weather monitoring, and will focus on real-world application of such technology. Additionally, this report will list some of the current and projected GOES-R products, and the potential benefits if testing proves successful.
Estimation Of Temporal Variations In Path-Averaged Atmospheric Refractive Index Gradient From Time-Lapse Imagery, Santasri Basu, Jack E. Mccrae, Steven T. Fiorino, Jared Przelomski
Estimation Of Temporal Variations In Path-Averaged Atmospheric Refractive Index Gradient From Time-Lapse Imagery, Santasri Basu, Jack E. Mccrae, Steven T. Fiorino, Jared Przelomski
Faculty Publications
The sea level vertical refractive index gradient in the U.S. Standard Atmosphere model is −2.7×10−8 m−1 at 500 nm. At any particular location, the actual refractive index gradient varies due to turbulence and local weather conditions. An imaging experiment was conducted to measure the temporal variability of this gradient. A tripod mounted digital camera captured images of a distant building every minute. Atmospheric turbulence caused the images to wander quickly, randomly, and statistically isotropically and changes in the average refractive index gradient along the path caused the images to move vertically and more slowly. The temporal variations of …
Wind Climatology: A Study Of Trends On Rodgers' Dry Lakebed, Dana Coppernoll-Houston
Wind Climatology: A Study Of Trends On Rodgers' Dry Lakebed, Dana Coppernoll-Houston
STAR Program Research Presentations
A number of smaller projects at the Armstrong Flight Research Center fly on or close to the ground and are subject to ground-level winds. Many of these are new prototype models, such as PRANDTL-D (Preliminary Research Aerodynamic Design to Lower Drag). Waiting for the right conditions on a day of variable winds can sometimes mean that teams fail to complete testing. A strategic analysis of wind behavior at a locations where winds can vary greatly due to terrain could lend insight into the best times to test for near-ground aircraft. The purpose of this project was to data mine historical …
The Influence Of Model Resolution On The Simulated Sensitivity Of North Atlantic Tropical Cyclone Maximum Intensity To Sea Surface Temperature, Sarah Strazzo, James Elsner, Timothy Larow, Hiroyuki Murakami, Michael Wehner, Ming Zhao
The Influence Of Model Resolution On The Simulated Sensitivity Of North Atlantic Tropical Cyclone Maximum Intensity To Sea Surface Temperature, Sarah Strazzo, James Elsner, Timothy Larow, Hiroyuki Murakami, Michael Wehner, Ming Zhao
Publications
No abstract provided.
Karst Landscape Influence On The Planetary Boundary Layer Atmosphere, Zachary S. Sullivan
Karst Landscape Influence On The Planetary Boundary Layer Atmosphere, Zachary S. Sullivan
Masters Theses & Specialist Projects
Karst landscapes cover approximately 20% of the ice-free land area worldwide. The soluble nature of the bedrock within a karst landscape allows for the formation of caverns, joints, fissures, sinkholes, and underground streams, which affect the hydrological behavior of the region. Currently, the Noah Land-Surface Model (Noah- LSM), coupled with the Weather Research and Forecasting (WRF) model, does not provide a representation of the physical behavior of a karst terrain. Previous research has attempted to model karst behavior through soil moisture and land cover/land use changes to determine the influence this unique landscape may have on atmospheric phenomenon. This highlights …
Modeling And Satellite Remote Sensing Of The Meteorological Impacts Of Irrigation During The 2012 Central Plains Drought, Clint Aegerter
Modeling And Satellite Remote Sensing Of The Meteorological Impacts Of Irrigation During The 2012 Central Plains Drought, Clint Aegerter
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
As irrigation is increasingly needed for agricultural production, it is becoming progressively more important to understand not only how irrigation impacts water availability, but how the introduction of this water into the soil impacts weather and climate through land-atmosphere interactions. In the summer of 2012, the Central Plains of the United States experienced one of its most severe droughts on record. This study examines the meteorological impacts of irrigation during this drought through observations and model simulations using the Community Land Model (CLM) coupled to the Weather Research and Forecasting (WRF) model. A simple parameterization of irrigation processes is added …
The Tropical Cyclone Diurnal Cycle, Jason Paul Dunion
The Tropical Cyclone Diurnal Cycle, Jason Paul Dunion
Legacy Theses & Dissertations (2009 - 2024)
The research presented in this thesis explores a phenomenon referred to as the tropical cyclone (TC) diurnal cycle (TCDC) and presents satellite, numerical modeling, and observational perspectives pertaining to how it can be monitored, its evolution in time and space, its relevance to TC structure and intensity, and how it manifests in numerical simulations of TCs. Infrared satellite imagery was developed and used to investigate diurnal oscillations in TCs and finds a diurnal pulsing pattern that occurs with notable regularity through a relatively deep layer from the inner core to the surrounding environment. A combination of satellite, numerical model simulations, …
Evaluation Of Large‑Scale Meteorological Patterns Associated With Temperature Extremes In The Narccap Regional Climate Model Simulations, Paul C. Loikith, Duane E. Waliser, Huikyo Lee, J. David Neelin, Benjamin Lintner, Seth Mcginnis, Linda Mears, Jinwon Kim
Evaluation Of Large‑Scale Meteorological Patterns Associated With Temperature Extremes In The Narccap Regional Climate Model Simulations, Paul C. Loikith, Duane E. Waliser, Huikyo Lee, J. David Neelin, Benjamin Lintner, Seth Mcginnis, Linda Mears, Jinwon Kim
Geography Faculty Publications and Presentations
Large-scale meteorological patterns (LSMPs) associated with temperature extremes are evaluated in a suite of regional climate model (RCM) simulations contributing to the North American Regional Climate Change Assessment Program. LSMPs are characterized through composites of surface air temperature, sea level pressure, and 500 hPa geopotential height anomalies concurrent with extreme temperature days. Six of the seventeen RCM simulations are driven by boundary conditions from reanalysis while the other eleven are driven by one of four global climate models (GCMs). Four illustrative case studies are analyzed in detail. Model fidelity in LSMP spatial representation is high for cold winter extremes near …