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 11 of 11 for “"Cloud physics"”.
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The development of an acoustic levitation test facility for cloud physics research
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1990.
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The Madden-Julian Oscillation and Convective Aggregation
… known as convective aggregation, convection in `cloud-resolving' numerical models is sometimes observed to spontaneously transition from homogeneous conditions to a single persistent precipitating region balanced by dry descent in the remainder of the domain. Numerical models which allow …
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Trade wind cloud evolution observed by polarization radar: relationship to aerosol characteristics
One of the classical unsolved problems in cloud physics is the explanation of the observed short time between initial cloud formation and the onset of precipitation in warm clouds. Although a time interval of about 20 minutes is often quoted for initiation of warm rainfall, few field observations …
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Microphysical Influences on cold pools
Downdrafts extending from within convective clouds to the ground can produce cold pools, regions of air at the surface cooled by melting or sublimating ice and/or evaporation of rain within the downdrafts. These cold pools can propagate outward, sometimes initiating new convection along their …
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Toward assessing the effects of aerosols on deep convection: a numerical study using the WRF-Chemistry model
As the formative agents of cloud droplets, aerosols play an undeniably important role in the development of clouds and precipitation. Few meteorological models have been developed or adapted to simulate aerosols and their contribution to cloud and precipitation processes. The Weather Research and …
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Applying the Methods of Population Dynamics to the Problem of Rain Development
No abstract prepared.
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Investigating the impacts of entrainment on nucleation scavenging of black carbon particles through particle-resolved simulations
… to a positive radiative forcing. The optical and cloud condensation nuclei properties of the aerosol depend on the per-particle chemical species composition, or mixing state. Challenges arise in determining black carbon climate effects because the mixing state changes during the particles’ …
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Radiation-induced condensational growth of cloud-sized mist droplets
Many uncertainties still exist regarding cloud droplet evolution and the production of precipitation from clouds, including the effects of both shortwave and longwave (infrared) thermal radiation. The potential importance of infrared thermal radiation on cloud droplet evolution, particularly at …
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Observation and simulation of mid-latitude ice clouds
… are commonly used to obtain PSDs and other cloud microphysical properties. In particular, two-dimensional in situ images captured by cloud imaging probes are widely used to derive PSDs in term of their maximum particle dimension (Dmax). In the second chapter, different definitions of Dmax …
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Snowfall Characterization by Field Observation and Atmospheric Sounding
The snowfall rate is related to microphysical and dynamical processes in weather systems and is further specified by choice of measurement time, related to the statistics of individual falling ice crystals. A snowflake is definable as a single ice crystal having long range order in the crystal …
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Air-sea interaction at contrasting sites in the eastern tropical Pacific : mesoscale variability and atmospheric convection at 10°N
… variability may influence the occurrence of clouds. The intraseasonal variability in currents, sea surface height, and SST at the northern site is examined within the broader spatial and temporal context afforded by satellite data. The oscillations have zonal wavelengths of 550-1650 km and …