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University of Nebraska - Lincoln
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
- Discipline
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- Atmospheric Sciences (4)
- Earth Sciences (3)
- Climate (2)
- Biogeochemistry (1)
- Computer Sciences (1)
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- Environmental Sciences (1)
- Fresh Water Studies (1)
- Hydrology (1)
- Life Sciences (1)
- Natural Resource Economics (1)
- Natural Resources Management and Policy (1)
- Natural Resources and Conservation (1)
- Numerical Analysis and Scientific Computing (1)
- Other Earth Sciences (1)
- Other Environmental Sciences (1)
- Plant Biology (1)
- Plant Sciences (1)
- Probability (1)
- Statistical Models (1)
- Statistics and Probability (1)
- Theory and Algorithms (1)
- Water Resource Management (1)
- Keyword
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- ThOR (2)
- Thunderstorms (2)
- Atmospheric Attenuation (1)
- Energy balance (1)
- Evapotranspiration (1)
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- Fire Radiative Power (1)
- Fire Weather (1)
- Flash Multiplicity (1)
- Greenhouse (1)
- Injection Heights (1)
- Lightning (1)
- MODIS (1)
- Meteorology (1)
- Modeling (1)
- Nonconvective wind gusts (1)
- North America (1)
- Peak Current (1)
- Phragmites australis (1)
- Radiative Transfer (1)
- Satellite (1)
- Smoke (1)
- Sub-Pixel (1)
- UAV (1)
- Water balance (1)
- Wetland (1)
- Wildfire (1)
Articles 1 - 5 of 5
Full-Text Articles in Meteorology
An Examination Of Physical And Empirical Approaches In Forecasting Nonconvective Wind Gusts, Jeramie Lippman
An Examination Of Physical And Empirical Approaches In Forecasting Nonconvective Wind Gusts, Jeramie Lippman
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
Nonconvective winds can be a dangerous and costly weather hazard. For example, over a ten year span from 2002 to 2011, there were over 200 fatalities and nearly 1,000 injuries, as well as over 6.4 billion dollars in monetary losses due to high, nonconvective winds. An important subset to nonconvective winds is the nonconvective wind gust. When winds are already relatively strong, a sudden wind gust can magnify already existing hazards. Three different methods were evaluated to determine if either of two physically based algorithms can outperform an empirical algorithm. The two physically based methods were the Wind Gust Estimate …
An Analysis Of Deep Convection Initiation Environments, Noah Lock
An Analysis Of Deep Convection Initiation Environments, Noah Lock
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
Initiation is the part of the convective life cycle which is currently least understood and least well forecast. The inability to properly forecast the timing and/or location of deep convection initiation degrades forecast skill, especially during the warm season. The goals of this research are examine the spatiotemporal distribution of thunderstorm initiation points and to determine which atmospheric parameters (and ultimately processes) are most important for the initiation of thunderstorms. The spatiotemporal distribution of thunderstorm initiation points shows the expected peaks during summer and during the afternoon. The warm season also produces significant concentrations of initiation points near mountains, mainly …
Retrieval Of Sub-Pixel-Based Fire Intensity And Its Application For Characterizing Smoke Injection Heights And Fire Weather In North America, David Peterson
Retrieval Of Sub-Pixel-Based Fire Intensity And Its Application For Characterizing Smoke Injection Heights And Fire Weather In North America, David Peterson
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
For over two decades, satellite sensors have provided the locations of global fire activity with ever-increasing accuracy. However, the ability to measure fire intensity, know as fire radiative power (FRP), and its potential relationships to meteorology and smoke plume injection heights, are currently limited by the pixel resolution. This dissertation describes the development of a new, sub-pixel-based FRP calculation (FRPf) for fire pixels detected by the MODerate Resolution Imaging Spectroradiometer (MODIS) fire detection algorithm (Collection 5), which is subsequently applied to several large wildfire events in North America. The methodology inherits an earlier bi-spectral algorithm for retrieving sub-pixel …
Periodicities Of Peak Current And Flash Multiplicity In Cloud To Ground Lightning, Alexander R. Gibbs
Periodicities Of Peak Current And Flash Multiplicity In Cloud To Ground Lightning, Alexander R. Gibbs
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
Research on lightning has been conducted on various topics including thunderstorm electrification and climatology of lightning strikes however; there are still some characteristics of lightning that are not well known, such as flash multiplicity and peak current as a function of individual thunderstorms. These characteristics are the leading cause of injuries and damage each year. This study examines a severe weather event in Minnesota on 16 September 2006, in order to determine what may cause peak current and flash multiplicity. Cycles in peak current and flash multiplicity are identified and then associated with CAPE to determine if a thunderstorm’s updraft …
Water And Energy Balance Response Of A Riparian Wetland To The Removal Of Phragmites Australis, Phillip Mykleby
Water And Energy Balance Response Of A Riparian Wetland To The Removal Of Phragmites Australis, Phillip Mykleby
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
Vegetation and climate both play integral roles in water availability, particularly for arid to semi-arid regions. Changes in these variables can lead to extreme shortages in water for regions that rely on water for crop irrigation (i.e., the Great Plains). The objective of this study is to evaluate the impacts of vegetation on water availability in the Republican River basin in central Nebraska. Decreases in streamflow have been observed in the river basin for many years and, as a result, an invasive riparian plant species (Phragmites australis) is being removed in an effort to reduce evapotranspiration and reclaim …