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.
Results
Showing 1 to 20 of 63 for “"Microphysics"”.
-
Microphysics of atmospheric aerosols : phase transitions and cloud formation mechanisms
Clouds play an extremely important role in our atmosphere, from controlling the local weather, air pollution and chemical balance in the atmosphere to affecting long-term climatic changes at local, regional and global scales. The mechanisms through which tropospheric clouds form are still not fully …
-
Hailstorm events over a maritime tropical region: a study of environments and microphysics of Surabaya hail events, Indonesia
In recent years, several hail events have been observed in the Maritime Tropics (mT), including five occurrences in the urban area of Surabaya, Indonesia. Past studies of mT hailstorms have been limited to individual case studies and often have restricted accessibility to a general international …
-
The dependence of arctic mixed phase stratus ice cloud microphysics on aerosol concentration using observations acquired during ISDAC and M-PACE
Data acquired by the National Research Council of Canada (NRC) Convair-580, equipped with cloud and aerosol probes during 5 sorties through single-layer arctic stratocumulus on 8 April, 18 April, and 26 April 2008 during the Indirect and Semi Direct Aerosol Campaign (ISDAC) and by the University of …
-
Laboratory Astrophysics Studies of Magnetized Collisionless Shock Precursors and the ³He³He Proton Spectrum at the OMEGA Laser Facility
… astrophysics experiments: macrophysics and microphysics. Macrophysics experiments study a scaled down version of an astrophysical system while microphysics experiments create a small volume of matter with the same conditions as an astrophysical system. This thesis details work related to …
-
Application of the Weather Research and Forecasting (WRF) Model to Simulate a Squall Line: Implications of Choosing Parameterization Scheme Combinations and Model Initialization Data Sets
… to this event. These examinations included cloud microphysics (WRF Single-Moment 3-class, 6-class, and Goddard), cumulus parameterization (Kain-Fritsch and Bets-Miller-Janjic) and planetary boundary layer schemes (Yonsei-University and Mellor-Yamada-Janjic). A total of 12 WRF simulations were …
-
Toward assessing the effects of aerosols on deep convection: a numerical study using the WRF-Chemistry model
… which is linked to the Purdue Lin bulk microphysics scheme. The aim of this study is to examine the sensitivity of deep convective precipitation modeled by the 2D WRF-Chem to varying aerosol number concentration and aerosol type. A systematic study has been performed regarding the …
-
Characterization and modeling of aerosol-cloud interactions toward the improvement of rainfall estimation in high mountains
… (RDSDs). Explicit modeling of the rainfall microphysics from the top of the blind zone, if located below the zero-degree isotherm, towards the surface can improve rainfall estimation at the ground, as demonstrated in the Southern Appalachian Mountains. However, if the top of the blind zone …
-
Investigations of cloud altering effects of atmospheric aerosols using a new mixed Eulerian-Lagrangian aerosol model
… We use this model to investigate the microphysics of aerosol-cloud interactions, specifically considering the role of cloud dynamics and of the ubiquitous mixed soot / sulfate aerosols. We describe the Mixed Eulerian-Lagrangian Aerosol Model (MELAM). This new computer model of aerosol …
-
Exploring the Links between Camp governmentality and Agentic Responses of Rohingya Refugee in Bangladesh
… encompasses power of the refugees, their microphysics of power in the long-term camps. This understanding of governmentality result in an essential link with refugee agency with a view to operate the camps peacefully in extended period. This dissertation deals this aspect based on the …
-
Precipitation growth processes in the comma head region of an east coast winter storm
… head region. As part of the Investigation of Microphysics and Precipitation for Atlantic Coast-Threatening Snowstorms (IMPACTS) field campaign, precipitation within the comma head region was sampled by two research aircraft, providing a vertical cross-section of in-situ microphysics …
-
Numerical Simulations of a Midlatitude Squall Line
… vertical, and emphasis was placed on varying the microphysics and the vertical wind shear. The temperature and moisture profiles chosen were adapted from the environmental conditions which were present prior to the development of the 22 May 1976 Oklahoma squall line and were typical of …
-
Using high-resolution modelling to improve the parameterisation of convection in a climate model
… profile of individual convective clouds. A microphysics framework was implemented to ensure identical behaviour in LES and cloud-model integration where the microphysical processes represented are numerically integrated using a novel adaptive step microphysics integration which uses the …
-
THE PYROCONVECTIVE PATHWAY FOR STRATOSPHERIC WATER VAPOR AND AEROSOL
… driving the convection and their effects on microphysics. Results show that intense sensible heat fluxes are the dominant convection trigger over a wildfire in an unstable atmosphere. Direct observations by cloud profiling radar of the active convective stage of a pyroCb are analyzed for the …
-
The impact of vertical variations of cloud mircrophysics and drizzle on the angular anisotropic behavior of weighted cloud droplet effective radius
… the impact of vertical variations of cloud microphysics and drizzle on the angular variations of Rw with respect of scattering angle. Furthermore, this study focuses on the angular behavior of Rw near rainbow scattering directions and discusses how vertical variations of cloud microphysics …
-
Development and Evaluation of Contrail Models
… model, and APCEMM, a 2-D model with detailed ice microphysics. However, there are gaps within the current contrail modeling literature. There is no model both sufficiently fast for rapid assessment of contrail impacts and detailed in its ice microphysics modeling. There are few studies calibrating …
-
Gravitational waves and gauge fields in the early Universe
… paradigm of the early Universe, the exact microphysics that realize inflation are poorly constrained. Moreover, inflation generically leaves the Universe cold and empty. The fundamental physics underlying reheating, the dynamics that transition the post-inflationary Universe to a hot Big …
-
Study of particulate matter formation and evolution in near-field aircraft plumes using a one-dimensional microphysical model
… 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 near field aircraft plumes at ground level. The initial exhaust properties were obtained from engine data and plume mixing profiles …
-
Assessment of Convectively Generated Tropical Cirrus in Global Storm-Resolving Models
… use available observations to perfect their ice microphysics and dynamical flow solvers.
-
Arctic Aerosol Sources and Continental Organic Aerosol Hygroscopicity
… aerosol formed from oceanic sources. An aerosol microphysics box model confirmed that local DMS could have produced the observed particles. In addition, the particle chemical composition was measured using aerosol mass spectrometry in the central Arctic Ocean in August 2008 and particles were …
-
Orographic Precipitation Over the Island of Oahu
… during the month of February 2015, but the microphysics of the HOP model is insufficient to produce a meaningful diagnosis of the actual precipitation during that time period. The ORI and orographic vertical motion are closely related indicating that the vertical motion is more important …
Page 1 of 4