Theses and Dissertations - Department of Atmospheric Science
Recent Submissions
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Simulating the effects of coated ice nuclei in the formation of thin ice clouds in the high arctic using RAMS
The Polar regions are an integral part of Earth's energy budget, however they are poorly understood mainly due to their remoteness and lack of observations. The recent launch of two successful satellites, CloudSat and ... -
Examining the impacts of convective environments on storms using observations and numerical models
Convective clouds are significant contributors to both weather and climate. While the basic environments supporting convective clouds are broadly known, there is currently no unifying theory on how joint variations in ... -
Investigation of relationships between tropical cyclone structure and intensity change
Rapid intensification (RI) of a tropical cyclone (TC) remains one of the largest sources of intensity forecast error, due in part to internal dynamics that are complex and less well understood. Part of the difficulty in ... -
CSU-MLP GEFS day-1 "first-guess" excessive rainfall forecasts: aggregate evaluation and synoptic regimes of best- and worst-performing forecasts
Forecasting excessive rainfall, particularly flash flood-producing rainfall, is an important problem that remains difficult due to the small spatial scales and varying temporal scales at which they occur. One important ... -
Ensemble-based analyses of liminal extreme rainfall events near Taiwan and northern Colorado
Heavy rainfall is a phenomenon that impacts a variety of climates around the world, from the moisture-rich, tropical northwestern Pacific to the drier Northern Colorado plains. Improvements over decades of numerical weather ... -
Look up: probing the vertical profile of new particle formation and growth in the planetary boundary layer with models and observations
The processes of new particle formation (NPF) and growth are important contributors to cloud condensation nuclei (CCN) concentrations, and CCN are important for climate from their impact on planetary radiative forcing. ... -
Impact of forced and internal climate variability on changes in convective environments over the eastern United States
Hazards from convective weather and severe storms pose a serious threat to the continental United States (CONUS). Previous studies have examined how future projected changes in climate might impact the frequency and intensity ... -
Impacts of oil and natural gas development and other sources on volatile organic compound concentrations in Broomfield, Colorado
In 2017 substantial new oil and natural gas (ONG) extraction was approved by the City and County of Broomfield (CCOB). A monitoring program was established by CCOB to determine how new ONG extraction impacted local air ... -
Economic impacts and analysis methods of extreme precipitation estimates for eastern Colorado
Dams are designed to store water and to insure human safety and as such they must withstand, in their lifetimes, any extreme precipitation event in their drainage basin. Correct estimation of this event is critical because ... -
Three regional climatologies of marine stratocumulus characteristics using the A-train satellite data
Low-level marine stratocumulus clouds are known to play a large role in the Earth's radiation budget. They also present challenges to forecasts using numerical models. While many studies have attempted to model or explain ... -
Freezing drizzle production in warm frontal overunning cloud layers: an observational study
National Weather Service operational and research aircraft data were used to analyze the large and small-scale structure of warm-frontal overrunning cloud layers forming freezing drizzle. Two detailed case studies, one ... -
Intraseasonal variability in the tropical diurnal cycle
The relationship between large-scale intraseasonal variability in tropical convection and the local diurnal cycle on tropical islands is explored with observations and an idealized model. In part one, the impact of ... -
Understanding and quantifying the uncertainties in satellite warm rain retrievals
Satellite-based oceanic precipitation estimates, particularly those derived from the Global Precipitation Measurement (GPM) satellite and CloudSat, suffer from significant disagreement over regions of the globe where warm ... -
Analysis of precipitation and convection in the west Pacific during the PISTON field campaign
Tropical convection is a meteorological phenomenon with important impacts on the atmosphere, both locally and globally. Consequently, it has been an intensely studied topic for many years. Importantly, several ship-based ... -
Investigating the enhancement of air pollutant predictions and understanding air quality disparities across racial, ethnic, and economic lines at US public schools
Ambient air pollution has significant health and economic impacts worldwide. Even in the most developed countries, monitoring networks often lack the spatiotemporal density to resolve air pollution gradients. Though air ... -
Satellite-based investigation of convection and precipitation in tropical cyclone intensity change
Multiple hypotheses on the role of convection and precipitation in tropical cyclone intensity change have been proposed, but a scientific consensus has not yet been obtained. Some recent studies emphasize the importance ... -
Composition of fine particles in Carlsbad Caverns National Park and implications for sources and visibility impacts
The Carlsbad Caverns Air Quality Study (CarCavAQS) was designed to examine the influence of regional sources, including urban emissions, increased oil and gas development, wildfires and other biogenic sources, and soil ... -
Surface heat fluxes and MJO propagation through the Maritime Continent
The 'barrier effect' of the Maritime Continent (MC) is a known hurdle in understanding the propagation of the Madden-Julian Oscillation (MJO). To understand the differing dynamics of MJO events that propagate versus stall ... -
Aerosol size distribution changes in FIREX-AQ biomass burning plumes: the role of plume concentration on coagulation and OA condensation/evaporation
The evolution of organic aerosols and aerosol size distributions within smoke plumes are uncertain due to the variability in rates of coagulation and organic aerosol (OA) condensation/evaporation across different smoke ... -
Assessing the state-dependency of infrared satellite precipitation errors
The sensing and prediction of precipitation remains at the forefront of weather forecasting, building upon centuries of measurement and study. While in-situ and ground-based methodologies such as rain gauges and weather ...
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