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Showing 1 to 20 of 64 for “"Thunderstorms"”.
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Entrainment in simulated supercell thunderstorms
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-15 without embargo terms
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Distribution of air mass thunderstorms in New England.
Massachusetts Institute of Technology. Dept. of Meteorology. Thesis. 1966. M.S.
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Quantifying entrainment and dilution in numerical simulations of developing thunderstorms
… numerical simulations of developing thunderstorms in environments with different wind profiles to understand the role of vertical wind shear in modulating cumulus entrainment. Entrainment is directly quantified using the mass flux across a defined cloud core surface. Greater …
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Environments associated with giant hail-producing thunderstorms in Northern Argentina
Made available in DSpace on 2020-03-02T22:18:18Z (GMT). No. of bitstreams: 2 CHEN-THESIS-2019.pdf: 2833357 bytes, checksum: 9b6b4005be3724540cc300fa08583ce7 (MD5) LICENSE.txt: 4209 bytes, checksum: fd5cd901df9f8625dfc0b3776c5bc996 (MD5) Previous issue date: 2019-12-11
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Characteristics of New England thunderstorms viewed on 10 cm radar
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1964.
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Areal coverage of storm precipitation : observations of air mass thunderstorms
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1986.
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Vertical appearance of New England thunderstorms on 3-CM radar
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1962.
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The initiation and mature structure of strongly forced squall-line thunderstorms
Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:47:04Z Item is restricted indefinitely.
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The effects of entrainment in the developing and rotating stages of supercell thunderstorms
… to investigating the entrainment into developing thunderstorms growing in environments with strong vertical wind shear, or to how rotating updrafts in some thunderstorms (i.e. supercells; produced in environments with specific characteristics of the vertical wind shear) might alter the amount of …
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Dual-Doppler Derived Vorticity as a Predictor of Hail Size in Severe Thunderstorms
… life and property. Large hail produced by severe thunderstorms is a major focus of this mission. An algorithm known as the Maximum Estimated Size of Hail (MESH) algorithm is in operational use to diagnose the presence and size of hail. This study aims to use dual-Doppler observations as well as …
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Controls of updraft size, cold pool characteristics, and potential tornado intensity in supercell thunderstorms
While the overall understanding of moist convective processes has advanced greatly, the two-way interconnections between convection initiation, updraft structure, and subsequent cold pool generation are not well understood. This has become particularly relevant with ongoing efforts to introduce …
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Developing a climatology for dry thunderstorms and associated environmental conditions in the contiguous United States
Dry thunderstorms are the result of an interesting balance of meteorological variables: they require sufficient moisture and instability in the atmosphere, but also a dry surface layer that facilitates evaporation of falling precipitation. Here, lightning flashes and precipitation amounts for the …
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ON THE FURTHER STUDIES OF SUITABLE STORM-SCALE 3DVAR DATA ASSIMILATION FOR THE PREDICTION OF TORNADIC THUNDERSTORMS
… and NWP for the prediction of tornadic supercell thunderstorms still faces many challenges. Some fundamental issues are still not thoroughly (or explicitly) investigated. To name a few: what data field(s) plays the most important role in storm-scale data assimilation? How much information is …
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The Effects of Low-Level Wind Shear Orientation, Depth, and Magnitude on Low-Level Rotation in Simulated Supercell Thunderstorms
Supercell thunderstorms simulated using the numerical model CM1 are used to analyze the effects of low-level vertical wind shear on near-ground rotation in the storm. In particular, the parameters being assessed are the orientation, magnitude, and depth of the low-level vertical wind shear. …
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Terrain and Landcover Effects of the Southern Appalachian Mountains on the Low-Level Rotational Wind Fields of Supercell Thunderstorms
… low-level wind fields of fourteen supercell thunderstorms in the Appalachians. The terrain variables include elevation, land cover, slope, and aspect. Using GIS mapping techniques, the individual storm tracks were overlaid onto elevation, land cover, slope, and aspect layers; points along the …
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The utility of total lightning observations in severe weather forecasting
… 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 total flash rate value which distinguishes severe thunderstorms from non-severe …
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Forecasting The Onset Of Cloud-ground Lightning Using S-pol And Nldn Data
The maximum number of thunderstorms in the United States occur in Central Florida. The cloud-ground lightning from these storms is responsible for extensive damage to life and property. The lightning from these storms is also responsible for delays and cancellations of space shuttle launch attempts …
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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 …
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The Utility of Total Lightning in Diagnosing Single-cell Thunderstorm Severity in the Central Appalachian Mountains Region
… Mountains were clustered into likely discrete thunderstorms and subsequently classified as either single-cell or multicell/supercell storm modes. The classification of storms was determined using a storm index (SI) which was informed by current National Weather Service (NWS) identification …
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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 …
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