Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 93 for “"Microphysical"”.
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Microphysical Influences on cold pools
… investigate the hydrometeor types and associated microphysical processes that are most important for determining cold pool initiation timing, strength, depth, and propagation speed. Idealized numerical simulations based upon deep convection observed on a single day during the MC3E field campaign …
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Microphysical Mechanisms in Stratiform Precipitation as Observed in OLYMPEX
… Olympic Mountains Experiment (OLYMPEX). The microphysical characteristics of the stratiform component occurring during this 12–13 November event were investigated using simultaneous in-situ aircraft microphysical sampling and ground-based dual-polarization radar measurements. On 12 November, …
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Microphysical modeling of ultrane hydrocarbon-containing aerosols in aircraft emissions
… compounds in PM evolution by developing a microphysical model that incorporates organic compounds into the formation mechanism of binary aqueous aerosols. While binary aerosol models with sulfuric acid and water have been widely studied, the understanding of the effect of organics on the …
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Microphysical-dynamical processes and interactions in a precipitating cumulus cell model.
Thesis. 1977. Sc.D.--Massachusetts Institute of Technology. Dept. of Meteorology.
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Assessing the impacts of microphysical and environmental controls on simulated supercell storms
… prediction, is strongly dependent on the microphysical parameterization being utilized in the model. As forecasting models have become more advanced, they are more commonly using double moment bulk microphysical parameterizations, which typically predict the hydrometeor number …
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Effects of Microphysical Parameterizations and Drop Breakup on Supercells and Supercell Cold Pools.
… two-moment (Morrison and Milbrandt-Yau) microphysical parameterizations affect the supercell cold pool and the evolution of storm structure. Using in-situ data gathered by StickNet probes, the simulated cold pool can be objectively verified against the observations. This verification is …
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A comparison of microphysical properties in lake-effect and synoptic snowfall near Buffalo, NY
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-08-01
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Microphysical retrieval of non-spherical aerosol particles using regularized inversion of multi-wavelength lidar data
… by investigating the evolution of aerosol microphysical properties, which are the focus of the present work. The aerosol size distribution, the refractive index, and the single scattering albedo are commonly used such properties linked to aerosol type, and radiative forcing. Highly advanced …
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Evaluations of microphysical parameterizations in retrieval algorithms for snowfall particle size distributions from dual frequency radar measurements
… snowflakes, but the impact that more realistic microphysical assumptions can have on the accuracy of simulations and retrievals of snowfall properties has not yet been determined. In this project, collocated and simultaneous measurements of ice water content, reflectivity, and particle size …
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Sub-grid process analysis of the sensitivity of black carbon aging to particle microphysical properties at emission
The microphysical properties of black carbon-containing particles change due to interaction with other aerosol components after emission, altering their radiative properties and cloud condensation nuclei activity. Understanding these aging processes is essential in assessing black carbon’s direct …
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Environmental dependence of mass-dimension relationships and investigation of microphysical observations of a southern hemisphere atmospheric river
Ice microphysical processes have a profound impact on the weather and climate given their ability to change radiative, thermodynamic, and precipitation properties. Their representation in models and remote sensing retrievals, however, is highly uncertain given the variable nature of ice particle …
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Structure and statistical analysis of the microphysical properties of the comma-head region of cold-season midlatitude cyclones
This dissertation presents analyses of the microphysical structure and processes producing precipitation in the comma-head region of cold-season continental cyclones, using data collected by the W-band Wyoming Cloud Radar and in-situ instrumentation aboard the NSF/NCAR C-130 research aircraft …
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Study of particulate matter formation and evolution in near-field aircraft plumes using a one-dimensional microphysical model
Environmental concerns have led to a growing effort to investigate and characterize the particulate matter (PM) emissions from aircraft engines. This thesis presents a one-dimensional microphysics and chemical kinetics model that is used to study the formation and evolution of particulate matter in …
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Characterisation of Microphysical and Optical Properties of Atmospheric Aerosols in a High Arctic environment: Villum Research Station, NE Greenland
… latitudes, it is important to understand their microphysical and optical properties, which control their interaction with visible wavelength radiation. This thesis focuses on the characterisation of the aforementioned aerosol properties in a High Arctic environment, Villum Research Station …
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The Microphysical and Radiative Properties of Tropical Cirrus From the 2006 Tropical Warm Pool International Cloud Experiment (twp-Ice)
The impacts of variations in small ice crystal shapes and concentrations on bulk scattering properties of tropical cirrus are quantified. The calculated mean asymmetry parameter g¯ for the fresh anvil (i.e., 2 Feb) is larger than that for cirrus bands of varying ages (i.e., 27 and 29 Jan.) for …
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A comparison of X-band polarization parameters with in-situ microphysical measurements in the comma head of two winter cyclones
… NSF/NCAR C-130 aircraft, equipped with in-situ microphysical probes, made multiple passes through the comma head of two cyclones as the Mobile Alabama X-band (MAX) dual-polarization radar performed range-height indicator scans in the same plane as the C-130 flight track. On 14-15 February and …
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Observed microphysical characteristics and inferred thermodynamic processes contributing to the structure, evolution, and maintenance of nocturnal elevated mesoscale convective systems
… the 20 June 2015 MCS were used to understand the microphysical and thermodynamic characteristics observed in the spirals in the context of the MCS reflectivity and kinematic structure. A second component of this study was a statistical analysis of the microphysical and thermodynamic structures …
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An observational and modeling study of a heavy orographic precipitation event over the Oregon Cascades
… and kinematic observations concomitantly with microphysical measurements also provided a unique chance to isolate errors in a mesoscale scale model's microphysical parameterization which may be contributing to errors in quantitative precipitation forecasting. The Fifth Generation Penn …
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