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 50 for “"thunderstorm"”.
-
Thunderstorm runoff in southeastern Arizona.
… in southeastern Arizona results from air-mass thunderstorms. On large watersheds (1,000 square miles and greater) frontal systems which may include thunderstorm activity or snowmelt produce the major flood peaks as well as much of the annual runoff. Air-mass thunderstorms are of short duration …
-
Analysis of a thunderstorm downburst
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Meteorology and Physical Oceanography, 1983.
-
Forcing mechanisms of thunderstorm downdrafts
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1991.
-
Thunderstorm electrification : precipitation versus convection
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Science, 1981.
-
The electrical environment of thunderstorm models and measurements
A model describing a thunderstorm's interaction with the global electric circuit is presented. The model includes a thunderstorm, the surrounding atmospheric and ionospheric region, and the magnetically conjugate atmospheric and ionospheric region. The model is time-dependent, and includes …
-
Low-level curvature shear and supercell thunderstorm behavior
… detect rotation over several kilometers within thunderstorms in a region known as the mesocyclone. Preliminary studies indicate the use of Doppler radar to issue tornado warnings based on mid-level mesocyclones yields a 50% false alarm rate, indicating that only half of storms with strong …
-
The development of thunderstorm complexes and their associated vertical transports.
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1968.
-
The influence of thunderstorm type on extreme near-surface wind characteristics
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-08-01
-
Quantifying various thunderstorm characteristics during high impact events using radar and satellite observations
Climate change is expected to change the intensity and frequency of heavy storms. Thus, understanding different characteristics of this phenomena (i.e., intensity, size, speed, direction, etc.) is vital for the effective climate adaptation. Many extreme storms have small areas and short lifetimes …
-
The Numerical Simulation of a Thunderstorm Cell in Two-Dimensions and Three-Dimensions
Made available in DSpace on 2014-12-10T20:13:36Z (GMT). No. of bitstreams: 1 7310083.pdf: 3096512 bytes, checksum: dad3c5fae21b432be1a3c2ff72fcc6b7 (MD5) Previous issue date: 1972
-
Non-thunderstorm-related effects on the near-surface wind field in strong tornadoes
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2023-12-01
-
The Numerical Simulation of Thunderstorm Outflow Dynamics (Gust Front, Kelvin-Helmholtz Instability, Wind Shear, Microbursts)
… and used to investigate the dynamics of thunderstorm outflows. The first model employs the set of unapproximated, inviscid, fully compressible hydrodynamical equations, while the second, more economical model is based on a simplified set of inviscid, "quasi-compressible" equations. …
-
An analysis of lightning and the limitations it imposes on a global model of thunderstorm electricity
… transient effects from lightning into a global thunderstorm electricity model. First, E, the electric field produced by a lightning return stroke, is analytically derived. Second, a determination is made of the model's ability to handle the quickly varying fields produced by lightning. In …
-
The Utility of Total Lightning in Diagnosing Single-cell Thunderstorm Severity in the Central Appalachian Mountains Region
… role of total lightning patterns in the severe thunderstorm warning-decision process although none to-date have examined these patterns in explicitly weak-shear environments. Total lightning flashes detected by the Earth Networks Total Lightning Network (ENTLN) during the 2012-13 convective …
-
Quality control and analysis of an updated wind gust data set in the United States
… Peak wind speeds are classified into thunderstorm, non-thunderstorm, and tropical and standardized for instrumentation changes. Spatial analysis of annual maximum wind gusts shows the highest thunderstorm and non-thunderstorm wind speeds in the central Great Plains. Trends in median …
-
A numerical simulation of a tornado-scale vortex in a three-dimensional cloud model
… by a highly organized, lasting, and rotating thunderstorm called a ""supercell"", tornadoes are one of the most destructive atmospheric phenomena. Tornadoes almost always have length and time scales smaller than the measurable scales within the observing network of surface stations, …
-
The numerical simulation of non-supercell tornadogenesis
… the strong mid-level rotation found in supercell thunderstorms. In recent years the severe storms community has acknowledged that a significant portion of the small tornadoes occurring across North America every year are associated with storms not displaying strong mid-level rotation before …
-
The utility of total lightning observations in severe weather forecasting
… of total lightning as an indicator of a given thunderstorm’s potential to produce severe weather. Specifically, a dataset of 52 thunderstorms (30 severe, 22 non-severe) within the domain of the Oklahoma LMA is analyzed to determine if severe weather is preceded by two features: a threshold …
Page 1 of 3