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Defenses Fall 2013

Spring 2013 | Spring 2014

Numirical Simulation Diagnostics of a Flash Flood Event in Jeddah, Saudi Arabia

Ahmad Samman
December 18, 2013

On 26 January 2011, a severe storm hit the city of Jeddah, the second largest city in the Kingdom of Saudi Arabia. The storm resulted in a flash flood, which produced heavy rainfall in a short period of time. This event caused at least 1...

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Ensemble-based Analysis of Front Range Severe Convection on 6-7 June 2012: Forecast Uncertainty and Communication of Weather Information to Front Range Decision-makers

Vanessa Vincente
December 17, 2013

The variation of topography in Colorado not only adds to the beauty of its landscape, but also tests our ability to predict warm season severe convection. Deficient radar coverage and limited observations make quantitative precipitation ...

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On Modeled and Observed Warm Rainfall Occurrence and its Relationships with Cloud Macrophysical Properties

Josh King
December 17, 2013

Rainfall from low-level, liquid-phase ("warm") clouds over the global oceans is ubiquitous and contributes non- negligibly to the total amount of precipitation that falls to the globe. In this study, modeled and observed warm rainfall oc...

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Comparison of convective clouds observed by spaceborne w-band radar and simulated by cloud-resolving atmospheric models

Brant Dodson
November 15, 2013

Deep convective clouds (DCCs) play an important role in regulating global climate through vertical mass flux, vertical water transport, and radiation. For general circulation models (GCMs) to simulate the global climate realistically, th...

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Characteristics, Sources, and Formation of Organic Aerosol in the Central Rocky Mountains

Misha Schurman
November 7, 2013

Particulate matter in the atmosphere has wide-ranging health, environmental, and climate effects, many of which are attributed to fine-mode secondary organic aerosols. High-altitude ecosystems in the Rocky Mountains are sensitive to incr...

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The Climatology of Lightning Producing Large Impulse Charge Moment Changes with an Emphasis on Mesoscale Convective Systems

Nick Beavis
October 30, 2013

The use of both total charge moment change (CMC) and impulse charge moment change (iCMC) magnitudes to assess the potential of a cloud-to-ground (CG) lightning stroke to induce a mesospheric sprite has been well described in literature. ...

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Transport of pollutants from eastern Colorado into the Rocky Mountains via upslope winds

Aaron Piña
October 8, 2013

The confluence of mountain meteorology and major pollution sources conspire to transport pollutants across the Front Range, especially nitrogen species (NH3, NH4+, orgN, NO3-, and HN...

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Deep and Shallow Overturning Circulations in the Tropical Atmosphere

Gabriela Mora-Rojas
September 27, 2013

This dissertation examines the dynamics of zonally symmetric, deep and shallow overturning circulations in the tropical atmosphere. The dynamics are discussed in the context of idealized analytical solutions of the equatorial β-plan...

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Characteristics of Atmospheric Ice Nucleating Particles Associated with Biomass Burning in the US: Prescribed Burning and Wildfires

Christina McCluskey
July 8, 2013

Insufficient knowledge about the sources and number concentrations of atmospheric ice nucleating particles (INP) leads to large uncertainties in understanding the interaction of aerosols with cloud processes, such as cloud life time and ...

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